erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 28 | #include "v8.h" |
| 29 | |
| 30 | #if defined(V8_TARGET_ARCH_IA32) |
| 31 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 32 | #include "ia32/lithium-codegen-ia32.h" |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 33 | #include "ic.h" |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 34 | #include "code-stubs.h" |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 35 | #include "deoptimizer.h" |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 36 | #include "stub-cache.h" |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 37 | #include "codegen.h" |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 38 | |
| 39 | namespace v8 { |
| 40 | namespace internal { |
| 41 | |
| 42 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 43 | static SaveFPRegsMode GetSaveFPRegsMode() { |
| 44 | // We don't need to save floating point regs when generating the snapshot |
| 45 | return CpuFeatures::IsSafeForSnapshot(SSE2) ? kSaveFPRegs : kDontSaveFPRegs; |
| 46 | } |
| 47 | |
| 48 | |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 49 | // When invoking builtins, we need to record the safepoint in the middle of |
| 50 | // the invoke instruction sequence generated by the macro assembler. |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 51 | class SafepointGenerator : public CallWrapper { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 52 | public: |
| 53 | SafepointGenerator(LCodeGen* codegen, |
| 54 | LPointerMap* pointers, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 55 | Safepoint::DeoptMode mode) |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 56 | : codegen_(codegen), |
| 57 | pointers_(pointers), |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 58 | deopt_mode_(mode) {} |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 59 | virtual ~SafepointGenerator() { } |
| 60 | |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 61 | virtual void BeforeCall(int call_size) const {} |
| 62 | |
| 63 | virtual void AfterCall() const { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 64 | codegen_->RecordSafepoint(pointers_, deopt_mode_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | private: |
| 68 | LCodeGen* codegen_; |
| 69 | LPointerMap* pointers_; |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 70 | Safepoint::DeoptMode deopt_mode_; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 71 | }; |
| 72 | |
| 73 | |
| 74 | #define __ masm()-> |
| 75 | |
| 76 | bool LCodeGen::GenerateCode() { |
ulan@chromium.org | 9a21ec4 | 2012-03-06 08:42:24 +0000 | [diff] [blame] | 77 | HPhase phase("Z_Code generation", chunk()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 78 | ASSERT(is_unused()); |
| 79 | status_ = GENERATING; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 80 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 81 | // Open a frame scope to indicate that there is a frame on the stack. The |
| 82 | // MANUAL indicates that the scope shouldn't actually generate code to set up |
| 83 | // the frame (that is done in GeneratePrologue). |
| 84 | FrameScope frame_scope(masm_, StackFrame::MANUAL); |
| 85 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 86 | support_aligned_spilled_doubles_ = info()->IsOptimizing(); |
| 87 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 88 | dynamic_frame_alignment_ = info()->IsOptimizing() && |
| 89 | ((chunk()->num_double_slots() > 2 && |
| 90 | !chunk()->graph()->is_recursive()) || |
| 91 | !info()->osr_ast_id().IsNone()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 92 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 93 | return GeneratePrologue() && |
| 94 | GenerateBody() && |
| 95 | GenerateDeferredCode() && |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 96 | GenerateJumpTable() && |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 97 | GenerateSafepointTable(); |
| 98 | } |
| 99 | |
| 100 | |
| 101 | void LCodeGen::FinishCode(Handle<Code> code) { |
| 102 | ASSERT(is_done()); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 103 | code->set_stack_slots(GetStackSlotCount()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 104 | code->set_safepoint_table_offset(safepoints_.GetCodeOffset()); |
ulan@chromium.org | 6ba1fd0 | 2013-02-14 14:56:11 +0000 | [diff] [blame] | 105 | if (FLAG_weak_embedded_maps_in_optimized_code) { |
| 106 | RegisterDependentCodeForEmbeddedMaps(code); |
| 107 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 108 | PopulateDeoptimizationData(code); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 109 | if (!info()->IsStub()) { |
| 110 | Deoptimizer::EnsureRelocSpaceForLazyDeoptimization(code); |
| 111 | } |
danno@chromium.org | 1fd77d5 | 2013-06-07 16:01:45 +0000 | [diff] [blame] | 112 | info()->CommitDependentMaps(code); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 113 | } |
| 114 | |
| 115 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 116 | void LCodeGen::Abort(const char* reason) { |
| 117 | info()->set_bailout_reason(reason); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 118 | status_ = ABORTED; |
| 119 | } |
| 120 | |
| 121 | |
| 122 | void LCodeGen::Comment(const char* format, ...) { |
| 123 | if (!FLAG_code_comments) return; |
| 124 | char buffer[4 * KB]; |
| 125 | StringBuilder builder(buffer, ARRAY_SIZE(buffer)); |
| 126 | va_list arguments; |
| 127 | va_start(arguments, format); |
| 128 | builder.AddFormattedList(format, arguments); |
| 129 | va_end(arguments); |
| 130 | |
| 131 | // Copy the string before recording it in the assembler to avoid |
| 132 | // issues when the stack allocated buffer goes out of scope. |
| 133 | size_t length = builder.position(); |
| 134 | Vector<char> copy = Vector<char>::New(length + 1); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 135 | OS::MemCopy(copy.start(), builder.Finalize(), copy.length()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 136 | masm()->RecordComment(copy.start()); |
| 137 | } |
| 138 | |
| 139 | |
| 140 | bool LCodeGen::GeneratePrologue() { |
| 141 | ASSERT(is_generating()); |
| 142 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 143 | if (info()->IsOptimizing()) { |
| 144 | ProfileEntryHookStub::MaybeCallEntryHook(masm_); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 145 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 146 | #ifdef DEBUG |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 147 | if (strlen(FLAG_stop_at) > 0 && |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 148 | info_->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 149 | __ int3(); |
| 150 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 151 | #endif |
| 152 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 153 | // Strict mode functions and builtins need to replace the receiver |
| 154 | // with undefined when called as functions (without an explicit |
| 155 | // receiver object). ecx is zero for method calls and non-zero for |
| 156 | // function calls. |
| 157 | if (!info_->is_classic_mode() || info_->is_native()) { |
| 158 | Label ok; |
| 159 | __ test(ecx, Operand(ecx)); |
| 160 | __ j(zero, &ok, Label::kNear); |
| 161 | // +1 for return address. |
| 162 | int receiver_offset = (scope()->num_parameters() + 1) * kPointerSize; |
| 163 | __ mov(Operand(esp, receiver_offset), |
| 164 | Immediate(isolate()->factory()->undefined_value())); |
| 165 | __ bind(&ok); |
| 166 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 167 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 168 | if (support_aligned_spilled_doubles_ && dynamic_frame_alignment_) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 169 | // Move state of dynamic frame alignment into edx. |
| 170 | __ mov(edx, Immediate(kNoAlignmentPadding)); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 171 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 172 | Label do_not_pad, align_loop; |
| 173 | STATIC_ASSERT(kDoubleSize == 2 * kPointerSize); |
| 174 | // Align esp + 4 to a multiple of 2 * kPointerSize. |
| 175 | __ test(esp, Immediate(kPointerSize)); |
| 176 | __ j(not_zero, &do_not_pad, Label::kNear); |
| 177 | __ push(Immediate(0)); |
| 178 | __ mov(ebx, esp); |
| 179 | __ mov(edx, Immediate(kAlignmentPaddingPushed)); |
| 180 | // Copy arguments, receiver, and return address. |
| 181 | __ mov(ecx, Immediate(scope()->num_parameters() + 2)); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 182 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 183 | __ bind(&align_loop); |
| 184 | __ mov(eax, Operand(ebx, 1 * kPointerSize)); |
| 185 | __ mov(Operand(ebx, 0), eax); |
| 186 | __ add(Operand(ebx), Immediate(kPointerSize)); |
| 187 | __ dec(ecx); |
| 188 | __ j(not_zero, &align_loop, Label::kNear); |
| 189 | __ mov(Operand(ebx, 0), Immediate(kAlignmentZapValue)); |
| 190 | __ bind(&do_not_pad); |
| 191 | } |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 192 | } |
| 193 | |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 194 | info()->set_prologue_offset(masm_->pc_offset()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 195 | if (NeedsEagerFrame()) { |
| 196 | ASSERT(!frame_is_built_); |
| 197 | frame_is_built_ = true; |
| 198 | __ push(ebp); // Caller's frame pointer. |
| 199 | __ mov(ebp, esp); |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 200 | info()->AddNoFrameRange(0, masm_->pc_offset()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 201 | __ push(esi); // Callee's context. |
| 202 | if (info()->IsStub()) { |
| 203 | __ push(Immediate(Smi::FromInt(StackFrame::STUB))); |
| 204 | } else { |
| 205 | __ push(edi); // Callee's JS function. |
| 206 | } |
| 207 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 208 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 209 | if (info()->IsOptimizing() && |
| 210 | dynamic_frame_alignment_ && |
| 211 | FLAG_debug_code) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 212 | __ test(esp, Immediate(kPointerSize)); |
| 213 | __ Assert(zero, "frame is expected to be aligned"); |
| 214 | } |
| 215 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 216 | // Reserve space for the stack slots needed by the code. |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 217 | int slots = GetStackSlotCount(); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 218 | ASSERT(slots != 0 || !info()->IsOptimizing()); |
| 219 | if (slots > 0) { |
| 220 | if (slots == 1) { |
| 221 | if (dynamic_frame_alignment_) { |
| 222 | __ push(edx); |
| 223 | } else { |
| 224 | __ push(Immediate(kNoAlignmentPadding)); |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 225 | } |
jkummerow@chromium.org | 5323a9c | 2012-12-10 19:00:50 +0000 | [diff] [blame] | 226 | } else { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 227 | if (FLAG_debug_code) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 228 | __ sub(Operand(esp), Immediate(slots * kPointerSize)); |
| 229 | __ push(eax); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 230 | __ mov(Operand(eax), Immediate(slots)); |
| 231 | Label loop; |
| 232 | __ bind(&loop); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 233 | __ mov(MemOperand(esp, eax, times_4, 0), |
| 234 | Immediate(kSlotsZapValue)); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 235 | __ dec(eax); |
| 236 | __ j(not_zero, &loop); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 237 | __ pop(eax); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 238 | } else { |
| 239 | __ sub(Operand(esp), Immediate(slots * kPointerSize)); |
| 240 | #ifdef _MSC_VER |
| 241 | // On windows, you may not access the stack more than one page below |
| 242 | // the most recently mapped page. To make the allocated area randomly |
| 243 | // accessible, we write to each page in turn (the value is irrelevant). |
| 244 | const int kPageSize = 4 * KB; |
| 245 | for (int offset = slots * kPointerSize - kPageSize; |
| 246 | offset > 0; |
| 247 | offset -= kPageSize) { |
| 248 | __ mov(Operand(esp, offset), eax); |
| 249 | } |
| 250 | #endif |
| 251 | } |
| 252 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 253 | if (support_aligned_spilled_doubles_) { |
| 254 | Comment(";;; Store dynamic frame alignment tag for spilled doubles"); |
| 255 | // Store dynamic frame alignment state in the first local. |
| 256 | int offset = JavaScriptFrameConstants::kDynamicAlignmentStateOffset; |
| 257 | if (dynamic_frame_alignment_) { |
| 258 | __ mov(Operand(ebp, offset), edx); |
| 259 | } else { |
| 260 | __ mov(Operand(ebp, offset), Immediate(kNoAlignmentPadding)); |
| 261 | } |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | if (info()->saves_caller_doubles() && CpuFeatures::IsSupported(SSE2)) { |
| 266 | Comment(";;; Save clobbered callee double registers"); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 267 | CpuFeatureScope scope(masm(), SSE2); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 268 | int count = 0; |
| 269 | BitVector* doubles = chunk()->allocated_double_registers(); |
| 270 | BitVector::Iterator save_iterator(doubles); |
| 271 | while (!save_iterator.Done()) { |
| 272 | __ movdbl(MemOperand(esp, count * kDoubleSize), |
| 273 | XMMRegister::FromAllocationIndex(save_iterator.Current())); |
| 274 | save_iterator.Advance(); |
| 275 | count++; |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 276 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 277 | } |
| 278 | } |
| 279 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 280 | // Possibly allocate a local context. |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 281 | int heap_slots = info_->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 282 | if (heap_slots > 0) { |
| 283 | Comment(";;; Allocate local context"); |
| 284 | // Argument to NewContext is the function, which is still in edi. |
| 285 | __ push(edi); |
| 286 | if (heap_slots <= FastNewContextStub::kMaximumSlots) { |
| 287 | FastNewContextStub stub(heap_slots); |
| 288 | __ CallStub(&stub); |
| 289 | } else { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 290 | __ CallRuntime(Runtime::kNewFunctionContext, 1); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 291 | } |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 292 | RecordSafepoint(Safepoint::kNoLazyDeopt); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 293 | // Context is returned in both eax and esi. It replaces the context |
| 294 | // passed to us. It's saved in the stack and kept live in esi. |
| 295 | __ mov(Operand(ebp, StandardFrameConstants::kContextOffset), esi); |
| 296 | |
| 297 | // Copy parameters into context if necessary. |
| 298 | int num_parameters = scope()->num_parameters(); |
| 299 | for (int i = 0; i < num_parameters; i++) { |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 300 | Variable* var = scope()->parameter(i); |
| 301 | if (var->IsContextSlot()) { |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 302 | int parameter_offset = StandardFrameConstants::kCallerSPOffset + |
| 303 | (num_parameters - 1 - i) * kPointerSize; |
| 304 | // Load parameter from stack. |
| 305 | __ mov(eax, Operand(ebp, parameter_offset)); |
| 306 | // Store it in the context. |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 307 | int context_offset = Context::SlotOffset(var->index()); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 308 | __ mov(Operand(esi, context_offset), eax); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 309 | // Update the write barrier. This clobbers eax and ebx. |
| 310 | __ RecordWriteContextSlot(esi, |
| 311 | context_offset, |
| 312 | eax, |
| 313 | ebx, |
| 314 | kDontSaveFPRegs); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 315 | } |
| 316 | } |
| 317 | Comment(";;; End allocate local context"); |
| 318 | } |
| 319 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 320 | // Trace the call. |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 321 | if (FLAG_trace && info()->IsOptimizing()) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 322 | // We have not executed any compiled code yet, so esi still holds the |
| 323 | // incoming context. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 324 | __ CallRuntime(Runtime::kTraceEnter, 0); |
| 325 | } |
| 326 | return !is_aborted(); |
| 327 | } |
| 328 | |
| 329 | |
| 330 | bool LCodeGen::GenerateBody() { |
| 331 | ASSERT(is_generating()); |
| 332 | bool emit_instructions = true; |
| 333 | for (current_instruction_ = 0; |
| 334 | !is_aborted() && current_instruction_ < instructions_->length(); |
| 335 | current_instruction_++) { |
| 336 | LInstruction* instr = instructions_->at(current_instruction_); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 337 | |
| 338 | // Don't emit code for basic blocks with a replacement. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 339 | if (instr->IsLabel()) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 340 | emit_instructions = !LLabel::cast(instr)->HasReplacement(); |
| 341 | } |
| 342 | if (!emit_instructions) continue; |
| 343 | |
| 344 | if (FLAG_code_comments && instr->HasInterestingComment(this)) { |
| 345 | Comment(";;; <@%d,#%d> %s", |
| 346 | current_instruction_, |
| 347 | instr->hydrogen_value()->id(), |
| 348 | instr->Mnemonic()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 349 | } |
| 350 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 351 | if (!CpuFeatures::IsSupported(SSE2)) FlushX87StackIfNecessary(instr); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 352 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 353 | instr->CompileToNative(this); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 354 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 355 | if (!CpuFeatures::IsSupported(SSE2)) { |
| 356 | ASSERT(!instr->HasDoubleRegisterResult() || x87_stack_depth_ == 1); |
| 357 | if (FLAG_debug_code && FLAG_enable_slow_asserts) { |
| 358 | __ VerifyX87StackDepth(x87_stack_depth_); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 359 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 360 | } |
| 361 | } |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 362 | EnsureSpaceForLazyDeopt(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 363 | return !is_aborted(); |
| 364 | } |
| 365 | |
| 366 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 367 | bool LCodeGen::GenerateJumpTable() { |
| 368 | Label needs_frame_not_call; |
| 369 | Label needs_frame_is_call; |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 370 | if (jump_table_.length() > 0) { |
| 371 | Comment(";;; -------------------- Jump table --------------------"); |
| 372 | } |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 373 | for (int i = 0; i < jump_table_.length(); i++) { |
| 374 | __ bind(&jump_table_[i].label); |
| 375 | Address entry = jump_table_[i].address; |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 376 | Deoptimizer::BailoutType type = jump_table_[i].bailout_type; |
svenpanne@chromium.org | 876cca8 | 2013-03-18 14:43:20 +0000 | [diff] [blame] | 377 | int id = Deoptimizer::GetDeoptimizationId(isolate(), entry, type); |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 378 | if (id == Deoptimizer::kNotDeoptimizationEntry) { |
| 379 | Comment(";;; jump table entry %d.", i); |
| 380 | } else { |
| 381 | Comment(";;; jump table entry %d: deoptimization bailout %d.", i, id); |
| 382 | } |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 383 | if (jump_table_[i].needs_frame) { |
| 384 | __ push(Immediate(ExternalReference::ForDeoptEntry(entry))); |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 385 | if (type == Deoptimizer::LAZY) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 386 | if (needs_frame_is_call.is_bound()) { |
| 387 | __ jmp(&needs_frame_is_call); |
| 388 | } else { |
| 389 | __ bind(&needs_frame_is_call); |
| 390 | __ push(MemOperand(ebp, StandardFrameConstants::kContextOffset)); |
| 391 | // This variant of deopt can only be used with stubs. Since we don't |
| 392 | // have a function pointer to install in the stack frame that we're |
| 393 | // building, install a special marker there instead. |
| 394 | ASSERT(info()->IsStub()); |
| 395 | __ push(Immediate(Smi::FromInt(StackFrame::STUB))); |
| 396 | // Push a PC inside the function so that the deopt code can find where |
| 397 | // the deopt comes from. It doesn't have to be the precise return |
| 398 | // address of a "calling" LAZY deopt, it only has to be somewhere |
| 399 | // inside the code body. |
| 400 | Label push_approx_pc; |
| 401 | __ call(&push_approx_pc); |
| 402 | __ bind(&push_approx_pc); |
| 403 | // Push the continuation which was stashed were the ebp should |
| 404 | // be. Replace it with the saved ebp. |
| 405 | __ push(MemOperand(esp, 3 * kPointerSize)); |
| 406 | __ mov(MemOperand(esp, 4 * kPointerSize), ebp); |
| 407 | __ lea(ebp, MemOperand(esp, 4 * kPointerSize)); |
| 408 | __ ret(0); // Call the continuation without clobbering registers. |
| 409 | } |
| 410 | } else { |
| 411 | if (needs_frame_not_call.is_bound()) { |
| 412 | __ jmp(&needs_frame_not_call); |
| 413 | } else { |
| 414 | __ bind(&needs_frame_not_call); |
| 415 | __ push(MemOperand(ebp, StandardFrameConstants::kContextOffset)); |
| 416 | // This variant of deopt can only be used with stubs. Since we don't |
| 417 | // have a function pointer to install in the stack frame that we're |
| 418 | // building, install a special marker there instead. |
| 419 | ASSERT(info()->IsStub()); |
| 420 | __ push(Immediate(Smi::FromInt(StackFrame::STUB))); |
| 421 | // Push the continuation which was stashed were the ebp should |
| 422 | // be. Replace it with the saved ebp. |
| 423 | __ push(MemOperand(esp, 2 * kPointerSize)); |
| 424 | __ mov(MemOperand(esp, 3 * kPointerSize), ebp); |
| 425 | __ lea(ebp, MemOperand(esp, 3 * kPointerSize)); |
| 426 | __ ret(0); // Call the continuation without clobbering registers. |
| 427 | } |
| 428 | } |
| 429 | } else { |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 430 | if (type == Deoptimizer::LAZY) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 431 | __ call(entry, RelocInfo::RUNTIME_ENTRY); |
| 432 | } else { |
| 433 | __ jmp(entry, RelocInfo::RUNTIME_ENTRY); |
| 434 | } |
| 435 | } |
| 436 | } |
| 437 | return !is_aborted(); |
| 438 | } |
| 439 | |
| 440 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 441 | bool LCodeGen::GenerateDeferredCode() { |
| 442 | ASSERT(is_generating()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 443 | if (deferred_.length() > 0) { |
| 444 | for (int i = 0; !is_aborted() && i < deferred_.length(); i++) { |
| 445 | LDeferredCode* code = deferred_[i]; |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 446 | Comment(";;; <@%d,#%d> " |
| 447 | "-------------------- Deferred %s --------------------", |
| 448 | code->instruction_index(), |
| 449 | code->instr()->hydrogen_value()->id(), |
| 450 | code->instr()->Mnemonic()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 451 | __ bind(code->entry()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 452 | if (NeedsDeferredFrame()) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 453 | Comment(";;; Build frame"); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 454 | ASSERT(!frame_is_built_); |
| 455 | ASSERT(info()->IsStub()); |
| 456 | frame_is_built_ = true; |
| 457 | // Build the frame in such a way that esi isn't trashed. |
| 458 | __ push(ebp); // Caller's frame pointer. |
| 459 | __ push(Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 460 | __ push(Immediate(Smi::FromInt(StackFrame::STUB))); |
| 461 | __ lea(ebp, Operand(esp, 2 * kPointerSize)); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 462 | Comment(";;; Deferred code"); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 463 | } |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 464 | code->Generate(); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 465 | if (NeedsDeferredFrame()) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 466 | Comment(";;; Destroy frame"); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 467 | ASSERT(frame_is_built_); |
| 468 | frame_is_built_ = false; |
| 469 | __ mov(esp, ebp); |
| 470 | __ pop(ebp); |
| 471 | } |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 472 | __ jmp(code->exit()); |
| 473 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 474 | } |
| 475 | |
| 476 | // Deferred code is the last part of the instruction sequence. Mark |
| 477 | // the generated code as done unless we bailed out. |
| 478 | if (!is_aborted()) status_ = DONE; |
| 479 | return !is_aborted(); |
| 480 | } |
| 481 | |
| 482 | |
| 483 | bool LCodeGen::GenerateSafepointTable() { |
| 484 | ASSERT(is_done()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 485 | if (!info()->IsStub()) { |
| 486 | // For lazy deoptimization we need space to patch a call after every call. |
| 487 | // Ensure there is always space for such patching, even if the code ends |
| 488 | // in a call. |
| 489 | int target_offset = masm()->pc_offset() + Deoptimizer::patch_size(); |
| 490 | while (masm()->pc_offset() < target_offset) { |
| 491 | masm()->nop(); |
| 492 | } |
| 493 | } |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 494 | safepoints_.Emit(masm(), GetStackSlotCount()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 495 | return !is_aborted(); |
| 496 | } |
| 497 | |
| 498 | |
| 499 | Register LCodeGen::ToRegister(int index) const { |
| 500 | return Register::FromAllocationIndex(index); |
| 501 | } |
| 502 | |
| 503 | |
| 504 | XMMRegister LCodeGen::ToDoubleRegister(int index) const { |
| 505 | return XMMRegister::FromAllocationIndex(index); |
| 506 | } |
| 507 | |
| 508 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 509 | bool LCodeGen::IsX87TopOfStack(LOperand* op) const { |
| 510 | return op->IsDoubleRegister(); |
| 511 | } |
| 512 | |
| 513 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 514 | void LCodeGen::ReadX87Operand(Operand dst) { |
| 515 | ASSERT(x87_stack_depth_ == 1); |
| 516 | __ fst_d(dst); |
| 517 | } |
| 518 | |
| 519 | |
| 520 | void LCodeGen::PushX87DoubleOperand(Operand src) { |
| 521 | ASSERT(x87_stack_depth_ == 0); |
| 522 | x87_stack_depth_++; |
| 523 | __ fld_d(src); |
| 524 | } |
| 525 | |
| 526 | |
| 527 | void LCodeGen::PushX87FloatOperand(Operand src) { |
| 528 | ASSERT(x87_stack_depth_ == 0); |
| 529 | x87_stack_depth_++; |
| 530 | __ fld_s(src); |
| 531 | } |
| 532 | |
| 533 | |
| 534 | void LCodeGen::PopX87() { |
| 535 | ASSERT(x87_stack_depth_ == 1); |
| 536 | x87_stack_depth_--; |
| 537 | __ fstp(0); |
| 538 | } |
| 539 | |
| 540 | |
| 541 | void LCodeGen::CurrentInstructionReturnsX87Result() { |
| 542 | ASSERT(x87_stack_depth_ <= 1); |
| 543 | if (x87_stack_depth_ == 0) { |
| 544 | x87_stack_depth_ = 1; |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | |
| 549 | void LCodeGen::FlushX87StackIfNecessary(LInstruction* instr) { |
| 550 | if (x87_stack_depth_ > 0) { |
| 551 | if ((instr->ClobbersDoubleRegisters() || |
| 552 | instr->HasDoubleRegisterResult()) && |
| 553 | !instr->HasDoubleRegisterInput()) { |
| 554 | PopX87(); |
| 555 | } |
| 556 | } |
| 557 | } |
| 558 | |
| 559 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 560 | Register LCodeGen::ToRegister(LOperand* op) const { |
| 561 | ASSERT(op->IsRegister()); |
| 562 | return ToRegister(op->index()); |
| 563 | } |
| 564 | |
| 565 | |
| 566 | XMMRegister LCodeGen::ToDoubleRegister(LOperand* op) const { |
| 567 | ASSERT(op->IsDoubleRegister()); |
| 568 | return ToDoubleRegister(op->index()); |
| 569 | } |
| 570 | |
| 571 | |
| 572 | int LCodeGen::ToInteger32(LConstantOperand* op) const { |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 573 | HConstant* constant = chunk_->LookupConstant(op); |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 574 | return constant->Integer32Value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 575 | } |
| 576 | |
| 577 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 578 | Handle<Object> LCodeGen::ToHandle(LConstantOperand* op) const { |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 579 | HConstant* constant = chunk_->LookupConstant(op); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 580 | ASSERT(chunk_->LookupLiteralRepresentation(op).IsSmiOrTagged()); |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 581 | return constant->handle(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 582 | } |
| 583 | |
| 584 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 585 | double LCodeGen::ToDouble(LConstantOperand* op) const { |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 586 | HConstant* constant = chunk_->LookupConstant(op); |
| 587 | ASSERT(constant->HasDoubleValue()); |
| 588 | return constant->DoubleValue(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 589 | } |
| 590 | |
| 591 | |
danno@chromium.org | bf0c820 | 2011-12-27 10:09:42 +0000 | [diff] [blame] | 592 | bool LCodeGen::IsInteger32(LConstantOperand* op) const { |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 593 | return chunk_->LookupLiteralRepresentation(op).IsSmiOrInteger32(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 594 | } |
| 595 | |
| 596 | |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 597 | bool LCodeGen::IsSmi(LConstantOperand* op) const { |
| 598 | return chunk_->LookupLiteralRepresentation(op).IsSmi(); |
| 599 | } |
| 600 | |
| 601 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 602 | Operand LCodeGen::ToOperand(LOperand* op) const { |
| 603 | if (op->IsRegister()) return Operand(ToRegister(op)); |
| 604 | if (op->IsDoubleRegister()) return Operand(ToDoubleRegister(op)); |
| 605 | ASSERT(op->IsStackSlot() || op->IsDoubleStackSlot()); |
jkummerow@chromium.org | ac36071 | 2013-02-11 09:00:07 +0000 | [diff] [blame] | 606 | return Operand(ebp, StackSlotOffset(op->index())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 607 | } |
| 608 | |
| 609 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 610 | Operand LCodeGen::HighOperand(LOperand* op) { |
| 611 | ASSERT(op->IsDoubleStackSlot()); |
jkummerow@chromium.org | ac36071 | 2013-02-11 09:00:07 +0000 | [diff] [blame] | 612 | return Operand(ebp, StackSlotOffset(op->index()) + kPointerSize); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 613 | } |
| 614 | |
| 615 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 616 | void LCodeGen::WriteTranslation(LEnvironment* environment, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 617 | Translation* translation, |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 618 | int* pushed_arguments_index, |
| 619 | int* pushed_arguments_count) { |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 620 | if (environment == NULL) return; |
| 621 | |
| 622 | // The translation includes one command per value in the environment. |
| 623 | int translation_size = environment->values()->length(); |
| 624 | // The output frame height does not include the parameters. |
| 625 | int height = translation_size - environment->parameter_count(); |
| 626 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 627 | // Function parameters are arguments to the outermost environment. The |
| 628 | // arguments index points to the first element of a sequence of tagged |
| 629 | // values on the stack that represent the arguments. This needs to be |
| 630 | // kept in sync with the LArgumentsElements implementation. |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 631 | *pushed_arguments_index = -environment->parameter_count(); |
| 632 | *pushed_arguments_count = environment->parameter_count(); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 633 | |
| 634 | WriteTranslation(environment->outer(), |
| 635 | translation, |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 636 | pushed_arguments_index, |
| 637 | pushed_arguments_count); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 638 | bool has_closure_id = !info()->closure().is_null() && |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 639 | !info()->closure().is_identical_to(environment->closure()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 640 | int closure_id = has_closure_id |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 641 | ? DefineDeoptimizationLiteral(environment->closure()) |
| 642 | : Translation::kSelfLiteralId; |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 643 | switch (environment->frame_type()) { |
| 644 | case JS_FUNCTION: |
| 645 | translation->BeginJSFrame(environment->ast_id(), closure_id, height); |
| 646 | break; |
| 647 | case JS_CONSTRUCT: |
| 648 | translation->BeginConstructStubFrame(closure_id, translation_size); |
| 649 | break; |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 650 | case JS_GETTER: |
| 651 | ASSERT(translation_size == 1); |
| 652 | ASSERT(height == 0); |
| 653 | translation->BeginGetterStubFrame(closure_id); |
| 654 | break; |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 655 | case JS_SETTER: |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 656 | ASSERT(translation_size == 2); |
| 657 | ASSERT(height == 0); |
| 658 | translation->BeginSetterStubFrame(closure_id); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 659 | break; |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 660 | case ARGUMENTS_ADAPTOR: |
| 661 | translation->BeginArgumentsAdaptorFrame(closure_id, translation_size); |
| 662 | break; |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 663 | case STUB: |
| 664 | translation->BeginCompiledStubFrame(); |
| 665 | break; |
| 666 | default: |
| 667 | UNREACHABLE(); |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 668 | } |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 669 | |
| 670 | // Inlined frames which push their arguments cause the index to be |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 671 | // bumped and another stack area to be used for materialization, |
| 672 | // otherwise actual argument values are unknown for inlined frames. |
| 673 | bool arguments_known = true; |
| 674 | int arguments_index = *pushed_arguments_index; |
| 675 | int arguments_count = *pushed_arguments_count; |
| 676 | if (environment->entry() != NULL) { |
| 677 | arguments_known = environment->entry()->arguments_pushed(); |
| 678 | arguments_index = arguments_index < 0 |
| 679 | ? GetStackSlotCount() : arguments_index + arguments_count; |
| 680 | arguments_count = environment->entry()->arguments_count() + 1; |
| 681 | if (environment->entry()->arguments_pushed()) { |
| 682 | *pushed_arguments_index = arguments_index; |
| 683 | *pushed_arguments_count = arguments_count; |
| 684 | } |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 685 | } |
| 686 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 687 | for (int i = 0; i < translation_size; ++i) { |
| 688 | LOperand* value = environment->values()->at(i); |
| 689 | // spilled_registers_ and spilled_double_registers_ are either |
| 690 | // both NULL or both set. |
| 691 | if (environment->spilled_registers() != NULL && value != NULL) { |
| 692 | if (value->IsRegister() && |
| 693 | environment->spilled_registers()[value->index()] != NULL) { |
| 694 | translation->MarkDuplicate(); |
| 695 | AddToTranslation(translation, |
| 696 | environment->spilled_registers()[value->index()], |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 697 | environment->HasTaggedValueAt(i), |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 698 | environment->HasUint32ValueAt(i), |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 699 | arguments_known, |
| 700 | arguments_index, |
| 701 | arguments_count); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 702 | } else if ( |
| 703 | value->IsDoubleRegister() && |
| 704 | environment->spilled_double_registers()[value->index()] != NULL) { |
| 705 | translation->MarkDuplicate(); |
| 706 | AddToTranslation( |
| 707 | translation, |
| 708 | environment->spilled_double_registers()[value->index()], |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 709 | false, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 710 | false, |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 711 | arguments_known, |
| 712 | arguments_index, |
| 713 | arguments_count); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 714 | } |
| 715 | } |
| 716 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 717 | AddToTranslation(translation, |
| 718 | value, |
| 719 | environment->HasTaggedValueAt(i), |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 720 | environment->HasUint32ValueAt(i), |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 721 | arguments_known, |
| 722 | arguments_index, |
| 723 | arguments_count); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 724 | } |
| 725 | } |
| 726 | |
| 727 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 728 | void LCodeGen::AddToTranslation(Translation* translation, |
| 729 | LOperand* op, |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 730 | bool is_tagged, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 731 | bool is_uint32, |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 732 | bool arguments_known, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 733 | int arguments_index, |
| 734 | int arguments_count) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 735 | if (op == NULL) { |
| 736 | // TODO(twuerthinger): Introduce marker operands to indicate that this value |
| 737 | // is not present and must be reconstructed from the deoptimizer. Currently |
| 738 | // this is only used for the arguments object. |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 739 | translation->StoreArgumentsObject( |
| 740 | arguments_known, arguments_index, arguments_count); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 741 | } else if (op->IsStackSlot()) { |
| 742 | if (is_tagged) { |
| 743 | translation->StoreStackSlot(op->index()); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 744 | } else if (is_uint32) { |
| 745 | translation->StoreUint32StackSlot(op->index()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 746 | } else { |
| 747 | translation->StoreInt32StackSlot(op->index()); |
| 748 | } |
| 749 | } else if (op->IsDoubleStackSlot()) { |
| 750 | translation->StoreDoubleStackSlot(op->index()); |
| 751 | } else if (op->IsArgument()) { |
| 752 | ASSERT(is_tagged); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 753 | int src_index = GetStackSlotCount() + op->index(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 754 | translation->StoreStackSlot(src_index); |
| 755 | } else if (op->IsRegister()) { |
| 756 | Register reg = ToRegister(op); |
| 757 | if (is_tagged) { |
| 758 | translation->StoreRegister(reg); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 759 | } else if (is_uint32) { |
| 760 | translation->StoreUint32Register(reg); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 761 | } else { |
| 762 | translation->StoreInt32Register(reg); |
| 763 | } |
| 764 | } else if (op->IsDoubleRegister()) { |
| 765 | XMMRegister reg = ToDoubleRegister(op); |
| 766 | translation->StoreDoubleRegister(reg); |
| 767 | } else if (op->IsConstantOperand()) { |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 768 | HConstant* constant = chunk()->LookupConstant(LConstantOperand::cast(op)); |
| 769 | int src_index = DefineDeoptimizationLiteral(constant->handle()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 770 | translation->StoreLiteral(src_index); |
| 771 | } else { |
| 772 | UNREACHABLE(); |
| 773 | } |
| 774 | } |
| 775 | |
| 776 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 777 | void LCodeGen::CallCodeGeneric(Handle<Code> code, |
| 778 | RelocInfo::Mode mode, |
| 779 | LInstruction* instr, |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 780 | SafepointMode safepoint_mode) { |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 781 | ASSERT(instr != NULL); |
| 782 | LPointerMap* pointers = instr->pointer_map(); |
| 783 | RecordPosition(pointers->position()); |
| 784 | __ call(code, mode); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 785 | RecordSafepointWithLazyDeopt(instr, safepoint_mode); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 786 | |
| 787 | // Signal that we don't inline smi code before these stubs in the |
| 788 | // optimizing code generator. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 789 | if (code->kind() == Code::BINARY_OP_IC || |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 790 | code->kind() == Code::COMPARE_IC) { |
| 791 | __ nop(); |
| 792 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 793 | } |
| 794 | |
| 795 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 796 | void LCodeGen::CallCode(Handle<Code> code, |
| 797 | RelocInfo::Mode mode, |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 798 | LInstruction* instr) { |
| 799 | CallCodeGeneric(code, mode, instr, RECORD_SIMPLE_SAFEPOINT); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 800 | } |
| 801 | |
| 802 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 803 | void LCodeGen::CallRuntime(const Runtime::Function* fun, |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 804 | int argc, |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 805 | LInstruction* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 806 | ASSERT(instr != NULL); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 807 | ASSERT(instr->HasPointerMap()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 808 | LPointerMap* pointers = instr->pointer_map(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 809 | RecordPosition(pointers->position()); |
| 810 | |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 811 | __ CallRuntime(fun, argc); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 812 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 813 | RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 814 | |
| 815 | ASSERT(info()->is_calling()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 816 | } |
| 817 | |
| 818 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 819 | void LCodeGen::LoadContextFromDeferred(LOperand* context) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 820 | if (context->IsRegister()) { |
| 821 | if (!ToRegister(context).is(esi)) { |
| 822 | __ mov(esi, ToRegister(context)); |
| 823 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 824 | } else if (context->IsStackSlot()) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 825 | __ mov(esi, ToOperand(context)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 826 | } else if (context->IsConstantOperand()) { |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 827 | HConstant* constant = |
| 828 | chunk_->LookupConstant(LConstantOperand::cast(context)); |
| 829 | __ LoadHeapObject(esi, Handle<Context>::cast(constant->handle())); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 830 | } else { |
| 831 | UNREACHABLE(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 832 | } |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 833 | } |
| 834 | |
| 835 | void LCodeGen::CallRuntimeFromDeferred(Runtime::FunctionId id, |
| 836 | int argc, |
| 837 | LInstruction* instr, |
| 838 | LOperand* context) { |
| 839 | LoadContextFromDeferred(context); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 840 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 841 | __ CallRuntimeSaveDoubles(id); |
| 842 | RecordSafepointWithRegisters( |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 843 | instr->pointer_map(), argc, Safepoint::kNoLazyDeopt); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 844 | |
| 845 | ASSERT(info()->is_calling()); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 846 | } |
| 847 | |
| 848 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 849 | void LCodeGen::RegisterEnvironmentForDeoptimization( |
| 850 | LEnvironment* environment, Safepoint::DeoptMode mode) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 851 | if (!environment->HasBeenRegistered()) { |
| 852 | // Physical stack frame layout: |
| 853 | // -x ............. -4 0 ..................................... y |
| 854 | // [incoming arguments] [spill slots] [pushed outgoing arguments] |
| 855 | |
| 856 | // Layout of the environment: |
| 857 | // 0 ..................................................... size-1 |
| 858 | // [parameters] [locals] [expression stack including arguments] |
| 859 | |
| 860 | // Layout of the translation: |
| 861 | // 0 ........................................................ size - 1 + 4 |
| 862 | // [expression stack including arguments] [locals] [4 words] [parameters] |
| 863 | // |>------------ translation_size ------------<| |
| 864 | |
| 865 | int frame_count = 0; |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 866 | int jsframe_count = 0; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 867 | int args_index = 0; |
| 868 | int args_count = 0; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 869 | for (LEnvironment* e = environment; e != NULL; e = e->outer()) { |
| 870 | ++frame_count; |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 871 | if (e->frame_type() == JS_FUNCTION) { |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 872 | ++jsframe_count; |
| 873 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 874 | } |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 875 | Translation translation(&translations_, frame_count, jsframe_count, zone()); |
| 876 | WriteTranslation(environment, &translation, &args_index, &args_count); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 877 | int deoptimization_index = deoptimizations_.length(); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 878 | int pc_offset = masm()->pc_offset(); |
| 879 | environment->Register(deoptimization_index, |
| 880 | translation.index(), |
| 881 | (mode == Safepoint::kLazyDeopt) ? pc_offset : -1); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 882 | deoptimizations_.Add(environment, zone()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 883 | } |
| 884 | } |
| 885 | |
| 886 | |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 887 | void LCodeGen::DeoptimizeIf(Condition cc, |
| 888 | LEnvironment* environment, |
| 889 | Deoptimizer::BailoutType bailout_type) { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 890 | RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 891 | ASSERT(environment->HasBeenRegistered()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 892 | // It's an error to deoptimize with the x87 fp stack in use. |
| 893 | ASSERT(x87_stack_depth_ == 0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 894 | int id = environment->deoptimization_index(); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 895 | ASSERT(info()->IsOptimizing() || info()->IsStub()); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 896 | Address entry = |
| 897 | Deoptimizer::GetDeoptimizationEntry(isolate(), id, bailout_type); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 898 | if (entry == NULL) { |
| 899 | Abort("bailout was not prepared"); |
| 900 | return; |
| 901 | } |
| 902 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 903 | if (FLAG_deopt_every_n_times != 0 && !info()->IsStub()) { |
| 904 | Handle<SharedFunctionInfo> shared(info()->shared_info()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 905 | Label no_deopt; |
| 906 | __ pushfd(); |
| 907 | __ push(eax); |
| 908 | __ push(ebx); |
| 909 | __ mov(ebx, shared); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 910 | __ mov(eax, |
| 911 | FieldOperand(ebx, SharedFunctionInfo::kStressDeoptCounterOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 912 | __ sub(Operand(eax), Immediate(Smi::FromInt(1))); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 913 | __ j(not_zero, &no_deopt, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 914 | if (FLAG_trap_on_deopt) __ int3(); |
| 915 | __ mov(eax, Immediate(Smi::FromInt(FLAG_deopt_every_n_times))); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 916 | __ mov(FieldOperand(ebx, SharedFunctionInfo::kStressDeoptCounterOffset), |
| 917 | eax); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 918 | __ pop(ebx); |
| 919 | __ pop(eax); |
| 920 | __ popfd(); |
| 921 | __ jmp(entry, RelocInfo::RUNTIME_ENTRY); |
| 922 | |
| 923 | __ bind(&no_deopt); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 924 | __ mov(FieldOperand(ebx, SharedFunctionInfo::kStressDeoptCounterOffset), |
| 925 | eax); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 926 | __ pop(ebx); |
| 927 | __ pop(eax); |
| 928 | __ popfd(); |
| 929 | } |
| 930 | |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 931 | if (FLAG_trap_on_deopt) { |
| 932 | Label done; |
| 933 | if (cc != no_condition) { |
| 934 | __ j(NegateCondition(cc), &done, Label::kNear); |
| 935 | } |
| 936 | __ int3(); |
| 937 | __ bind(&done); |
| 938 | } |
| 939 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 940 | ASSERT(info()->IsStub() || frame_is_built_); |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 941 | if (cc == no_condition && frame_is_built_) { |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 942 | if (bailout_type == Deoptimizer::LAZY) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 943 | __ call(entry, RelocInfo::RUNTIME_ENTRY); |
| 944 | } else { |
| 945 | __ jmp(entry, RelocInfo::RUNTIME_ENTRY); |
| 946 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 947 | } else { |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 948 | // We often have several deopts to the same entry, reuse the last |
| 949 | // jump entry if this is the case. |
| 950 | if (jump_table_.is_empty() || |
| 951 | jump_table_.last().address != entry || |
| 952 | jump_table_.last().needs_frame != !frame_is_built_ || |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 953 | jump_table_.last().bailout_type != bailout_type) { |
| 954 | Deoptimizer::JumpTableEntry table_entry(entry, |
| 955 | bailout_type, |
| 956 | !frame_is_built_); |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 957 | jump_table_.Add(table_entry, zone()); |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 958 | } |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 959 | if (cc == no_condition) { |
| 960 | __ jmp(&jump_table_.last().label); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 961 | } else { |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 962 | __ j(cc, &jump_table_.last().label); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 963 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 964 | } |
| 965 | } |
| 966 | |
| 967 | |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 968 | void LCodeGen::DeoptimizeIf(Condition cc, |
| 969 | LEnvironment* environment) { |
| 970 | Deoptimizer::BailoutType bailout_type = info()->IsStub() |
| 971 | ? Deoptimizer::LAZY |
| 972 | : Deoptimizer::EAGER; |
| 973 | DeoptimizeIf(cc, environment, bailout_type); |
| 974 | } |
| 975 | |
| 976 | |
| 977 | void LCodeGen::SoftDeoptimize(LEnvironment* environment) { |
| 978 | ASSERT(!info()->IsStub()); |
| 979 | DeoptimizeIf(no_condition, environment, Deoptimizer::SOFT); |
| 980 | } |
| 981 | |
| 982 | |
ulan@chromium.org | 6ba1fd0 | 2013-02-14 14:56:11 +0000 | [diff] [blame] | 983 | void LCodeGen::RegisterDependentCodeForEmbeddedMaps(Handle<Code> code) { |
| 984 | ZoneList<Handle<Map> > maps(1, zone()); |
| 985 | int mode_mask = RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT); |
| 986 | for (RelocIterator it(*code, mode_mask); !it.done(); it.next()) { |
| 987 | RelocInfo::Mode mode = it.rinfo()->rmode(); |
| 988 | if (mode == RelocInfo::EMBEDDED_OBJECT && |
| 989 | it.rinfo()->target_object()->IsMap()) { |
| 990 | Handle<Map> map(Map::cast(it.rinfo()->target_object())); |
| 991 | if (map->CanTransition()) { |
| 992 | maps.Add(map, zone()); |
| 993 | } |
| 994 | } |
| 995 | } |
| 996 | #ifdef VERIFY_HEAP |
| 997 | // This disables verification of weak embedded maps after full GC. |
| 998 | // AddDependentCode can cause a GC, which would observe the state where |
| 999 | // this code is not yet in the depended code lists of the embedded maps. |
| 1000 | NoWeakEmbeddedMapsVerificationScope disable_verification_of_embedded_maps; |
| 1001 | #endif |
| 1002 | for (int i = 0; i < maps.length(); i++) { |
ulan@chromium.org | 2e04b58 | 2013-02-21 14:06:02 +0000 | [diff] [blame] | 1003 | maps.at(i)->AddDependentCode(DependentCode::kWeaklyEmbeddedGroup, code); |
ulan@chromium.org | 6ba1fd0 | 2013-02-14 14:56:11 +0000 | [diff] [blame] | 1004 | } |
| 1005 | } |
| 1006 | |
| 1007 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1008 | void LCodeGen::PopulateDeoptimizationData(Handle<Code> code) { |
| 1009 | int length = deoptimizations_.length(); |
| 1010 | if (length == 0) return; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1011 | Handle<DeoptimizationInputData> data = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1012 | factory()->NewDeoptimizationInputData(length, TENURED); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1013 | |
svenpanne@chromium.org | 876cca8 | 2013-03-18 14:43:20 +0000 | [diff] [blame] | 1014 | Handle<ByteArray> translations = |
| 1015 | translations_.CreateByteArray(isolate()->factory()); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 1016 | data->SetTranslationByteArray(*translations); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1017 | data->SetInlinedFunctionCount(Smi::FromInt(inlined_function_count_)); |
| 1018 | |
| 1019 | Handle<FixedArray> literals = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1020 | factory()->NewFixedArray(deoptimization_literals_.length(), TENURED); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 1021 | { AllowDeferredHandleDereference copy_handles; |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1022 | for (int i = 0; i < deoptimization_literals_.length(); i++) { |
| 1023 | literals->set(i, *deoptimization_literals_[i]); |
| 1024 | } |
| 1025 | data->SetLiteralArray(*literals); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1026 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1027 | |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1028 | data->SetOsrAstId(Smi::FromInt(info_->osr_ast_id().ToInt())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1029 | data->SetOsrPcOffset(Smi::FromInt(osr_pc_offset_)); |
| 1030 | |
| 1031 | // Populate the deoptimization entries. |
| 1032 | for (int i = 0; i < length; i++) { |
| 1033 | LEnvironment* env = deoptimizations_[i]; |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1034 | data->SetAstId(i, env->ast_id()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1035 | data->SetTranslationIndex(i, Smi::FromInt(env->translation_index())); |
| 1036 | data->SetArgumentsStackHeight(i, |
| 1037 | Smi::FromInt(env->arguments_stack_height())); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1038 | data->SetPc(i, Smi::FromInt(env->pc_offset())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1039 | } |
| 1040 | code->set_deoptimization_data(*data); |
| 1041 | } |
| 1042 | |
| 1043 | |
| 1044 | int LCodeGen::DefineDeoptimizationLiteral(Handle<Object> literal) { |
| 1045 | int result = deoptimization_literals_.length(); |
| 1046 | for (int i = 0; i < deoptimization_literals_.length(); ++i) { |
| 1047 | if (deoptimization_literals_[i].is_identical_to(literal)) return i; |
| 1048 | } |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 1049 | deoptimization_literals_.Add(literal, zone()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1050 | return result; |
| 1051 | } |
| 1052 | |
| 1053 | |
| 1054 | void LCodeGen::PopulateDeoptimizationLiteralsWithInlinedFunctions() { |
| 1055 | ASSERT(deoptimization_literals_.length() == 0); |
| 1056 | |
| 1057 | const ZoneList<Handle<JSFunction> >* inlined_closures = |
| 1058 | chunk()->inlined_closures(); |
| 1059 | |
| 1060 | for (int i = 0, length = inlined_closures->length(); |
| 1061 | i < length; |
| 1062 | i++) { |
| 1063 | DefineDeoptimizationLiteral(inlined_closures->at(i)); |
| 1064 | } |
| 1065 | |
| 1066 | inlined_function_count_ = deoptimization_literals_.length(); |
| 1067 | } |
| 1068 | |
| 1069 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1070 | void LCodeGen::RecordSafepointWithLazyDeopt( |
| 1071 | LInstruction* instr, SafepointMode safepoint_mode) { |
| 1072 | if (safepoint_mode == RECORD_SIMPLE_SAFEPOINT) { |
| 1073 | RecordSafepoint(instr->pointer_map(), Safepoint::kLazyDeopt); |
| 1074 | } else { |
| 1075 | ASSERT(safepoint_mode == RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); |
| 1076 | RecordSafepointWithRegisters( |
| 1077 | instr->pointer_map(), 0, Safepoint::kLazyDeopt); |
| 1078 | } |
| 1079 | } |
| 1080 | |
| 1081 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1082 | void LCodeGen::RecordSafepoint( |
| 1083 | LPointerMap* pointers, |
| 1084 | Safepoint::Kind kind, |
| 1085 | int arguments, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1086 | Safepoint::DeoptMode deopt_mode) { |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 1087 | ASSERT(kind == expected_safepoint_kind_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1088 | const ZoneList<LOperand*>* operands = pointers->GetNormalizedOperands(); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1089 | Safepoint safepoint = |
| 1090 | safepoints_.DefineSafepoint(masm(), kind, arguments, deopt_mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1091 | for (int i = 0; i < operands->length(); i++) { |
| 1092 | LOperand* pointer = operands->at(i); |
| 1093 | if (pointer->IsStackSlot()) { |
rossberg@chromium.org | 400388e | 2012-06-06 09:29:22 +0000 | [diff] [blame] | 1094 | safepoint.DefinePointerSlot(pointer->index(), zone()); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1095 | } else if (pointer->IsRegister() && (kind & Safepoint::kWithRegisters)) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 1096 | safepoint.DefinePointerRegister(ToRegister(pointer), zone()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1097 | } |
| 1098 | } |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1099 | } |
| 1100 | |
| 1101 | |
| 1102 | void LCodeGen::RecordSafepoint(LPointerMap* pointers, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1103 | Safepoint::DeoptMode mode) { |
| 1104 | RecordSafepoint(pointers, Safepoint::kSimple, 0, mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1105 | } |
| 1106 | |
| 1107 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1108 | void LCodeGen::RecordSafepoint(Safepoint::DeoptMode mode) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 1109 | LPointerMap empty_pointers(RelocInfo::kNoPosition, zone()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1110 | RecordSafepoint(&empty_pointers, mode); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1111 | } |
| 1112 | |
| 1113 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1114 | void LCodeGen::RecordSafepointWithRegisters(LPointerMap* pointers, |
| 1115 | int arguments, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1116 | Safepoint::DeoptMode mode) { |
| 1117 | RecordSafepoint(pointers, Safepoint::kWithRegisters, arguments, mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1118 | } |
| 1119 | |
| 1120 | |
| 1121 | void LCodeGen::RecordPosition(int position) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1122 | if (position == RelocInfo::kNoPosition) return; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1123 | masm()->positions_recorder()->RecordPosition(position); |
| 1124 | } |
| 1125 | |
| 1126 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1127 | static const char* LabelType(LLabel* label) { |
| 1128 | if (label->is_loop_header()) return " (loop header)"; |
| 1129 | if (label->is_osr_entry()) return " (OSR entry)"; |
| 1130 | return ""; |
| 1131 | } |
| 1132 | |
| 1133 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1134 | void LCodeGen::DoLabel(LLabel* label) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1135 | Comment(";;; <@%d,#%d> -------------------- B%d%s --------------------", |
| 1136 | current_instruction_, |
| 1137 | label->hydrogen_value()->id(), |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 1138 | label->block_id(), |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1139 | LabelType(label)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1140 | __ bind(label->label()); |
| 1141 | current_block_ = label->block_id(); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 1142 | DoGap(label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1143 | } |
| 1144 | |
| 1145 | |
| 1146 | void LCodeGen::DoParallelMove(LParallelMove* move) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1147 | resolver_.Resolve(move); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1148 | } |
| 1149 | |
| 1150 | |
| 1151 | void LCodeGen::DoGap(LGap* gap) { |
| 1152 | for (int i = LGap::FIRST_INNER_POSITION; |
| 1153 | i <= LGap::LAST_INNER_POSITION; |
| 1154 | i++) { |
| 1155 | LGap::InnerPosition inner_pos = static_cast<LGap::InnerPosition>(i); |
| 1156 | LParallelMove* move = gap->GetParallelMove(inner_pos); |
| 1157 | if (move != NULL) DoParallelMove(move); |
| 1158 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1159 | } |
| 1160 | |
| 1161 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 1162 | void LCodeGen::DoInstructionGap(LInstructionGap* instr) { |
| 1163 | DoGap(instr); |
| 1164 | } |
| 1165 | |
| 1166 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1167 | void LCodeGen::DoParameter(LParameter* instr) { |
| 1168 | // Nothing to do. |
| 1169 | } |
| 1170 | |
| 1171 | |
| 1172 | void LCodeGen::DoCallStub(LCallStub* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1173 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1174 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 1175 | switch (instr->hydrogen()->major_key()) { |
| 1176 | case CodeStub::RegExpConstructResult: { |
| 1177 | RegExpConstructResultStub stub; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1178 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1179 | break; |
| 1180 | } |
| 1181 | case CodeStub::RegExpExec: { |
| 1182 | RegExpExecStub stub; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1183 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1184 | break; |
| 1185 | } |
| 1186 | case CodeStub::SubString: { |
| 1187 | SubStringStub stub; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1188 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1189 | break; |
| 1190 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1191 | case CodeStub::NumberToString: { |
| 1192 | NumberToStringStub stub; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1193 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1194 | break; |
| 1195 | } |
| 1196 | case CodeStub::StringAdd: { |
| 1197 | StringAddStub stub(NO_STRING_ADD_FLAGS); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1198 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1199 | break; |
| 1200 | } |
| 1201 | case CodeStub::StringCompare: { |
| 1202 | StringCompareStub stub; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1203 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1204 | break; |
| 1205 | } |
| 1206 | case CodeStub::TranscendentalCache: { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 1207 | TranscendentalCacheStub stub(instr->transcendental_type(), |
| 1208 | TranscendentalCacheStub::TAGGED); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1209 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1210 | break; |
| 1211 | } |
| 1212 | default: |
| 1213 | UNREACHABLE(); |
| 1214 | } |
| 1215 | } |
| 1216 | |
| 1217 | |
| 1218 | void LCodeGen::DoUnknownOSRValue(LUnknownOSRValue* instr) { |
| 1219 | // Nothing to do. |
| 1220 | } |
| 1221 | |
| 1222 | |
| 1223 | void LCodeGen::DoModI(LModI* instr) { |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1224 | HMod* hmod = instr->hydrogen(); |
| 1225 | HValue* left = hmod->left(); |
| 1226 | HValue* right = hmod->right(); |
| 1227 | if (hmod->HasPowerOf2Divisor()) { |
| 1228 | // TODO(svenpanne) We should really do the strength reduction on the |
| 1229 | // Hydrogen level. |
| 1230 | Register left_reg = ToRegister(instr->left()); |
| 1231 | ASSERT(left_reg.is(ToRegister(instr->result()))); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1232 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1233 | // Note: The code below even works when right contains kMinInt. |
| 1234 | int32_t divisor = Abs(right->GetInteger32Constant()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1235 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1236 | Label left_is_not_negative, done; |
| 1237 | if (left->CanBeNegative()) { |
| 1238 | __ test(left_reg, Operand(left_reg)); |
| 1239 | __ j(not_sign, &left_is_not_negative, Label::kNear); |
| 1240 | __ neg(left_reg); |
| 1241 | __ and_(left_reg, divisor - 1); |
| 1242 | __ neg(left_reg); |
| 1243 | if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1244 | DeoptimizeIf(zero, instr->environment()); |
| 1245 | } |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1246 | __ jmp(&done, Label::kNear); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1247 | } |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1248 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1249 | __ bind(&left_is_not_negative); |
| 1250 | __ and_(left_reg, divisor - 1); |
| 1251 | __ bind(&done); |
| 1252 | |
| 1253 | } else if (hmod->has_fixed_right_arg()) { |
| 1254 | Register left_reg = ToRegister(instr->left()); |
| 1255 | ASSERT(left_reg.is(ToRegister(instr->result()))); |
| 1256 | Register right_reg = ToRegister(instr->right()); |
| 1257 | |
| 1258 | int32_t divisor = hmod->fixed_right_arg_value(); |
| 1259 | ASSERT(IsPowerOf2(divisor)); |
| 1260 | |
| 1261 | // Check if our assumption of a fixed right operand still holds. |
| 1262 | __ cmp(right_reg, Immediate(divisor)); |
| 1263 | DeoptimizeIf(not_equal, instr->environment()); |
| 1264 | |
| 1265 | Label left_is_not_negative, done; |
| 1266 | if (left->CanBeNegative()) { |
| 1267 | __ test(left_reg, Operand(left_reg)); |
| 1268 | __ j(not_sign, &left_is_not_negative, Label::kNear); |
| 1269 | __ neg(left_reg); |
| 1270 | __ and_(left_reg, divisor - 1); |
| 1271 | __ neg(left_reg); |
| 1272 | if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1273 | DeoptimizeIf(zero, instr->environment()); |
| 1274 | } |
| 1275 | __ jmp(&done, Label::kNear); |
| 1276 | } |
| 1277 | |
| 1278 | __ bind(&left_is_not_negative); |
| 1279 | __ and_(left_reg, divisor - 1); |
| 1280 | __ bind(&done); |
| 1281 | |
| 1282 | } else { |
| 1283 | Register left_reg = ToRegister(instr->left()); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 1284 | ASSERT(left_reg.is(eax)); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1285 | Register right_reg = ToRegister(instr->right()); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1286 | ASSERT(!right_reg.is(eax)); |
| 1287 | ASSERT(!right_reg.is(edx)); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1288 | Register result_reg = ToRegister(instr->result()); |
| 1289 | ASSERT(result_reg.is(edx)); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1290 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1291 | Label done; |
| 1292 | // Check for x % 0, idiv would signal a divide error. We have to |
| 1293 | // deopt in this case because we can't return a NaN. |
| 1294 | if (right->CanBeZero()) { |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 1295 | __ test(right_reg, Operand(right_reg)); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1296 | DeoptimizeIf(zero, instr->environment()); |
| 1297 | } |
| 1298 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1299 | // Check for kMinInt % -1, idiv would signal a divide error. We |
| 1300 | // have to deopt if we care about -0, because we can't return that. |
| 1301 | if (left->RangeCanInclude(kMinInt) && right->RangeCanInclude(-1)) { |
| 1302 | Label no_overflow_possible; |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1303 | __ cmp(left_reg, kMinInt); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1304 | __ j(not_equal, &no_overflow_possible, Label::kNear); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1305 | __ cmp(right_reg, -1); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1306 | if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1307 | DeoptimizeIf(equal, instr->environment()); |
| 1308 | } else { |
| 1309 | __ j(not_equal, &no_overflow_possible, Label::kNear); |
| 1310 | __ Set(result_reg, Immediate(0)); |
| 1311 | __ jmp(&done, Label::kNear); |
| 1312 | } |
| 1313 | __ bind(&no_overflow_possible); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1314 | } |
| 1315 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1316 | // Sign extend dividend in eax into edx:eax. |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1317 | __ cdq(); |
| 1318 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1319 | // If we care about -0, test if the dividend is <0 and the result is 0. |
| 1320 | if (left->CanBeNegative() && |
| 1321 | hmod->CanBeZero() && |
| 1322 | hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1323 | Label positive_left; |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 1324 | __ test(left_reg, Operand(left_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1325 | __ j(not_sign, &positive_left, Label::kNear); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1326 | __ idiv(right_reg); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 1327 | __ test(result_reg, Operand(result_reg)); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1328 | DeoptimizeIf(zero, instr->environment()); |
| 1329 | __ jmp(&done, Label::kNear); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1330 | __ bind(&positive_left); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1331 | } |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame^] | 1332 | __ idiv(right_reg); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 1333 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1334 | } |
| 1335 | } |
| 1336 | |
| 1337 | |
| 1338 | void LCodeGen::DoDivI(LDivI* instr) { |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 1339 | if (!instr->is_flooring() && instr->hydrogen()->HasPowerOf2Divisor()) { |
jkummerow@chromium.org | 5323a9c | 2012-12-10 19:00:50 +0000 | [diff] [blame] | 1340 | Register dividend = ToRegister(instr->left()); |
| 1341 | int32_t divisor = |
| 1342 | HConstant::cast(instr->hydrogen()->right())->Integer32Value(); |
| 1343 | int32_t test_value = 0; |
| 1344 | int32_t power = 0; |
| 1345 | |
| 1346 | if (divisor > 0) { |
| 1347 | test_value = divisor - 1; |
| 1348 | power = WhichPowerOf2(divisor); |
| 1349 | } else { |
| 1350 | // Check for (0 / -x) that will produce negative zero. |
| 1351 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1352 | __ test(dividend, Operand(dividend)); |
| 1353 | DeoptimizeIf(zero, instr->environment()); |
| 1354 | } |
| 1355 | // Check for (kMinInt / -1). |
| 1356 | if (divisor == -1 && instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1357 | __ cmp(dividend, kMinInt); |
| 1358 | DeoptimizeIf(zero, instr->environment()); |
| 1359 | } |
| 1360 | test_value = - divisor - 1; |
| 1361 | power = WhichPowerOf2(-divisor); |
| 1362 | } |
| 1363 | |
| 1364 | if (test_value != 0) { |
| 1365 | // Deoptimize if remainder is not 0. |
| 1366 | __ test(dividend, Immediate(test_value)); |
| 1367 | DeoptimizeIf(not_zero, instr->environment()); |
| 1368 | __ sar(dividend, power); |
| 1369 | } |
| 1370 | |
| 1371 | if (divisor < 0) __ neg(dividend); |
| 1372 | |
| 1373 | return; |
| 1374 | } |
| 1375 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1376 | LOperand* right = instr->right(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1377 | ASSERT(ToRegister(instr->result()).is(eax)); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1378 | ASSERT(ToRegister(instr->left()).is(eax)); |
| 1379 | ASSERT(!ToRegister(instr->right()).is(eax)); |
| 1380 | ASSERT(!ToRegister(instr->right()).is(edx)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1381 | |
| 1382 | Register left_reg = eax; |
| 1383 | |
| 1384 | // Check for x / 0. |
| 1385 | Register right_reg = ToRegister(right); |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 1386 | if (instr->hydrogen_value()->CheckFlag(HValue::kCanBeDivByZero)) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1387 | __ test(right_reg, ToOperand(right)); |
| 1388 | DeoptimizeIf(zero, instr->environment()); |
| 1389 | } |
| 1390 | |
| 1391 | // Check for (0 / -x) that will produce negative zero. |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 1392 | if (instr->hydrogen_value()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1393 | Label left_not_zero; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1394 | __ test(left_reg, Operand(left_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1395 | __ j(not_zero, &left_not_zero, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1396 | __ test(right_reg, ToOperand(right)); |
| 1397 | DeoptimizeIf(sign, instr->environment()); |
| 1398 | __ bind(&left_not_zero); |
| 1399 | } |
| 1400 | |
jkummerow@chromium.org | 5323a9c | 2012-12-10 19:00:50 +0000 | [diff] [blame] | 1401 | // Check for (kMinInt / -1). |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 1402 | if (instr->hydrogen_value()->CheckFlag(HValue::kCanOverflow)) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1403 | Label left_not_min_int; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1404 | __ cmp(left_reg, kMinInt); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1405 | __ j(not_zero, &left_not_min_int, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1406 | __ cmp(right_reg, -1); |
| 1407 | DeoptimizeIf(zero, instr->environment()); |
| 1408 | __ bind(&left_not_min_int); |
| 1409 | } |
| 1410 | |
| 1411 | // Sign extend to edx. |
| 1412 | __ cdq(); |
| 1413 | __ idiv(right_reg); |
| 1414 | |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 1415 | if (!instr->is_flooring()) { |
| 1416 | // Deoptimize if remainder is not 0. |
| 1417 | __ test(edx, Operand(edx)); |
| 1418 | DeoptimizeIf(not_zero, instr->environment()); |
| 1419 | } else { |
| 1420 | Label done; |
| 1421 | __ test(edx, edx); |
| 1422 | __ j(zero, &done, Label::kNear); |
| 1423 | __ xor_(edx, right_reg); |
| 1424 | __ sar(edx, 31); |
| 1425 | __ add(eax, edx); |
| 1426 | __ bind(&done); |
| 1427 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1428 | } |
| 1429 | |
| 1430 | |
yangguo@chromium.org | d2899aa | 2012-06-21 11:16:20 +0000 | [diff] [blame] | 1431 | void LCodeGen::DoMathFloorOfDiv(LMathFloorOfDiv* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1432 | ASSERT(instr->right()->IsConstantOperand()); |
yangguo@chromium.org | d2899aa | 2012-06-21 11:16:20 +0000 | [diff] [blame] | 1433 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1434 | Register dividend = ToRegister(instr->left()); |
| 1435 | int32_t divisor = ToInteger32(LConstantOperand::cast(instr->right())); |
yangguo@chromium.org | d2899aa | 2012-06-21 11:16:20 +0000 | [diff] [blame] | 1436 | Register result = ToRegister(instr->result()); |
| 1437 | |
| 1438 | switch (divisor) { |
| 1439 | case 0: |
| 1440 | DeoptimizeIf(no_condition, instr->environment()); |
| 1441 | return; |
| 1442 | |
| 1443 | case 1: |
| 1444 | __ Move(result, dividend); |
| 1445 | return; |
| 1446 | |
| 1447 | case -1: |
| 1448 | __ Move(result, dividend); |
| 1449 | __ neg(result); |
| 1450 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1451 | DeoptimizeIf(zero, instr->environment()); |
| 1452 | } |
| 1453 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1454 | DeoptimizeIf(overflow, instr->environment()); |
| 1455 | } |
| 1456 | return; |
| 1457 | } |
| 1458 | |
| 1459 | uint32_t divisor_abs = abs(divisor); |
| 1460 | if (IsPowerOf2(divisor_abs)) { |
| 1461 | int32_t power = WhichPowerOf2(divisor_abs); |
| 1462 | if (divisor < 0) { |
| 1463 | // Input[dividend] is clobbered. |
| 1464 | // The sequence is tedious because neg(dividend) might overflow. |
| 1465 | __ mov(result, dividend); |
| 1466 | __ sar(dividend, 31); |
| 1467 | __ neg(result); |
| 1468 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1469 | DeoptimizeIf(zero, instr->environment()); |
| 1470 | } |
| 1471 | __ shl(dividend, 32 - power); |
| 1472 | __ sar(result, power); |
| 1473 | __ not_(dividend); |
| 1474 | // Clear result.sign if dividend.sign is set. |
| 1475 | __ and_(result, dividend); |
| 1476 | } else { |
| 1477 | __ Move(result, dividend); |
| 1478 | __ sar(result, power); |
| 1479 | } |
| 1480 | } else { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1481 | ASSERT(ToRegister(instr->left()).is(eax)); |
yangguo@chromium.org | d2899aa | 2012-06-21 11:16:20 +0000 | [diff] [blame] | 1482 | ASSERT(ToRegister(instr->result()).is(edx)); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1483 | Register scratch = ToRegister(instr->temp()); |
yangguo@chromium.org | d2899aa | 2012-06-21 11:16:20 +0000 | [diff] [blame] | 1484 | |
| 1485 | // Find b which: 2^b < divisor_abs < 2^(b+1). |
| 1486 | unsigned b = 31 - CompilerIntrinsics::CountLeadingZeros(divisor_abs); |
| 1487 | unsigned shift = 32 + b; // Precision +1bit (effectively). |
| 1488 | double multiplier_f = |
| 1489 | static_cast<double>(static_cast<uint64_t>(1) << shift) / divisor_abs; |
| 1490 | int64_t multiplier; |
| 1491 | if (multiplier_f - floor(multiplier_f) < 0.5) { |
| 1492 | multiplier = static_cast<int64_t>(floor(multiplier_f)); |
| 1493 | } else { |
| 1494 | multiplier = static_cast<int64_t>(floor(multiplier_f)) + 1; |
| 1495 | } |
| 1496 | // The multiplier is a uint32. |
| 1497 | ASSERT(multiplier > 0 && |
| 1498 | multiplier < (static_cast<int64_t>(1) << 32)); |
| 1499 | __ mov(scratch, dividend); |
| 1500 | if (divisor < 0 && |
| 1501 | instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1502 | __ test(dividend, dividend); |
| 1503 | DeoptimizeIf(zero, instr->environment()); |
| 1504 | } |
| 1505 | __ mov(edx, static_cast<int32_t>(multiplier)); |
| 1506 | __ imul(edx); |
| 1507 | if (static_cast<int32_t>(multiplier) < 0) { |
| 1508 | __ add(edx, scratch); |
| 1509 | } |
| 1510 | Register reg_lo = eax; |
| 1511 | Register reg_byte_scratch = scratch; |
| 1512 | if (!reg_byte_scratch.is_byte_register()) { |
| 1513 | __ xchg(reg_lo, reg_byte_scratch); |
| 1514 | reg_lo = scratch; |
| 1515 | reg_byte_scratch = eax; |
| 1516 | } |
| 1517 | if (divisor < 0) { |
| 1518 | __ xor_(reg_byte_scratch, reg_byte_scratch); |
| 1519 | __ cmp(reg_lo, 0x40000000); |
| 1520 | __ setcc(above, reg_byte_scratch); |
| 1521 | __ neg(edx); |
| 1522 | __ sub(edx, reg_byte_scratch); |
| 1523 | } else { |
| 1524 | __ xor_(reg_byte_scratch, reg_byte_scratch); |
| 1525 | __ cmp(reg_lo, 0xC0000000); |
| 1526 | __ setcc(above_equal, reg_byte_scratch); |
| 1527 | __ add(edx, reg_byte_scratch); |
| 1528 | } |
| 1529 | __ sar(edx, shift - 32); |
| 1530 | } |
| 1531 | } |
| 1532 | |
| 1533 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1534 | void LCodeGen::DoMulI(LMulI* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1535 | Register left = ToRegister(instr->left()); |
| 1536 | LOperand* right = instr->right(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1537 | |
| 1538 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1539 | __ mov(ToRegister(instr->temp()), left); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1540 | } |
| 1541 | |
| 1542 | if (right->IsConstantOperand()) { |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 1543 | // Try strength reductions on the multiplication. |
| 1544 | // All replacement instructions are at most as long as the imul |
| 1545 | // and have better latency. |
| 1546 | int constant = ToInteger32(LConstantOperand::cast(right)); |
| 1547 | if (constant == -1) { |
| 1548 | __ neg(left); |
| 1549 | } else if (constant == 0) { |
| 1550 | __ xor_(left, Operand(left)); |
| 1551 | } else if (constant == 2) { |
| 1552 | __ add(left, Operand(left)); |
| 1553 | } else if (!instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1554 | // If we know that the multiplication can't overflow, it's safe to |
| 1555 | // use instructions that don't set the overflow flag for the |
| 1556 | // multiplication. |
| 1557 | switch (constant) { |
| 1558 | case 1: |
| 1559 | // Do nothing. |
| 1560 | break; |
| 1561 | case 3: |
| 1562 | __ lea(left, Operand(left, left, times_2, 0)); |
| 1563 | break; |
| 1564 | case 4: |
| 1565 | __ shl(left, 2); |
| 1566 | break; |
| 1567 | case 5: |
| 1568 | __ lea(left, Operand(left, left, times_4, 0)); |
| 1569 | break; |
| 1570 | case 8: |
| 1571 | __ shl(left, 3); |
| 1572 | break; |
| 1573 | case 9: |
| 1574 | __ lea(left, Operand(left, left, times_8, 0)); |
| 1575 | break; |
| 1576 | case 16: |
| 1577 | __ shl(left, 4); |
| 1578 | break; |
| 1579 | default: |
| 1580 | __ imul(left, left, constant); |
| 1581 | break; |
| 1582 | } |
| 1583 | } else { |
| 1584 | __ imul(left, left, constant); |
| 1585 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1586 | } else { |
| 1587 | __ imul(left, ToOperand(right)); |
| 1588 | } |
| 1589 | |
| 1590 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1591 | DeoptimizeIf(overflow, instr->environment()); |
| 1592 | } |
| 1593 | |
| 1594 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1595 | // Bail out if the result is supposed to be negative zero. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1596 | Label done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1597 | __ test(left, Operand(left)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1598 | __ j(not_zero, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1599 | if (right->IsConstantOperand()) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1600 | if (ToInteger32(LConstantOperand::cast(right)) < 0) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1601 | DeoptimizeIf(no_condition, instr->environment()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1602 | } else if (ToInteger32(LConstantOperand::cast(right)) == 0) { |
| 1603 | __ cmp(ToRegister(instr->temp()), Immediate(0)); |
| 1604 | DeoptimizeIf(less, instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1605 | } |
| 1606 | } else { |
| 1607 | // Test the non-zero operand for negative sign. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1608 | __ or_(ToRegister(instr->temp()), ToOperand(right)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1609 | DeoptimizeIf(sign, instr->environment()); |
| 1610 | } |
| 1611 | __ bind(&done); |
| 1612 | } |
| 1613 | } |
| 1614 | |
| 1615 | |
| 1616 | void LCodeGen::DoBitI(LBitI* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1617 | LOperand* left = instr->left(); |
| 1618 | LOperand* right = instr->right(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1619 | ASSERT(left->Equals(instr->result())); |
| 1620 | ASSERT(left->IsRegister()); |
| 1621 | |
| 1622 | if (right->IsConstantOperand()) { |
| 1623 | int right_operand = ToInteger32(LConstantOperand::cast(right)); |
| 1624 | switch (instr->op()) { |
| 1625 | case Token::BIT_AND: |
| 1626 | __ and_(ToRegister(left), right_operand); |
| 1627 | break; |
| 1628 | case Token::BIT_OR: |
| 1629 | __ or_(ToRegister(left), right_operand); |
| 1630 | break; |
| 1631 | case Token::BIT_XOR: |
| 1632 | __ xor_(ToRegister(left), right_operand); |
| 1633 | break; |
| 1634 | default: |
| 1635 | UNREACHABLE(); |
| 1636 | break; |
| 1637 | } |
| 1638 | } else { |
| 1639 | switch (instr->op()) { |
| 1640 | case Token::BIT_AND: |
| 1641 | __ and_(ToRegister(left), ToOperand(right)); |
| 1642 | break; |
| 1643 | case Token::BIT_OR: |
| 1644 | __ or_(ToRegister(left), ToOperand(right)); |
| 1645 | break; |
| 1646 | case Token::BIT_XOR: |
| 1647 | __ xor_(ToRegister(left), ToOperand(right)); |
| 1648 | break; |
| 1649 | default: |
| 1650 | UNREACHABLE(); |
| 1651 | break; |
| 1652 | } |
| 1653 | } |
| 1654 | } |
| 1655 | |
| 1656 | |
| 1657 | void LCodeGen::DoShiftI(LShiftI* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1658 | LOperand* left = instr->left(); |
| 1659 | LOperand* right = instr->right(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1660 | ASSERT(left->Equals(instr->result())); |
| 1661 | ASSERT(left->IsRegister()); |
| 1662 | if (right->IsRegister()) { |
| 1663 | ASSERT(ToRegister(right).is(ecx)); |
| 1664 | |
| 1665 | switch (instr->op()) { |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 1666 | case Token::ROR: |
| 1667 | __ ror_cl(ToRegister(left)); |
| 1668 | if (instr->can_deopt()) { |
| 1669 | __ test(ToRegister(left), Immediate(0x80000000)); |
| 1670 | DeoptimizeIf(not_zero, instr->environment()); |
| 1671 | } |
| 1672 | break; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1673 | case Token::SAR: |
| 1674 | __ sar_cl(ToRegister(left)); |
| 1675 | break; |
| 1676 | case Token::SHR: |
| 1677 | __ shr_cl(ToRegister(left)); |
| 1678 | if (instr->can_deopt()) { |
| 1679 | __ test(ToRegister(left), Immediate(0x80000000)); |
| 1680 | DeoptimizeIf(not_zero, instr->environment()); |
| 1681 | } |
| 1682 | break; |
| 1683 | case Token::SHL: |
| 1684 | __ shl_cl(ToRegister(left)); |
| 1685 | break; |
| 1686 | default: |
| 1687 | UNREACHABLE(); |
| 1688 | break; |
| 1689 | } |
| 1690 | } else { |
| 1691 | int value = ToInteger32(LConstantOperand::cast(right)); |
| 1692 | uint8_t shift_count = static_cast<uint8_t>(value & 0x1F); |
| 1693 | switch (instr->op()) { |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 1694 | case Token::ROR: |
| 1695 | if (shift_count == 0 && instr->can_deopt()) { |
| 1696 | __ test(ToRegister(left), Immediate(0x80000000)); |
| 1697 | DeoptimizeIf(not_zero, instr->environment()); |
| 1698 | } else { |
| 1699 | __ ror(ToRegister(left), shift_count); |
| 1700 | } |
| 1701 | break; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1702 | case Token::SAR: |
| 1703 | if (shift_count != 0) { |
| 1704 | __ sar(ToRegister(left), shift_count); |
| 1705 | } |
| 1706 | break; |
| 1707 | case Token::SHR: |
| 1708 | if (shift_count == 0 && instr->can_deopt()) { |
| 1709 | __ test(ToRegister(left), Immediate(0x80000000)); |
| 1710 | DeoptimizeIf(not_zero, instr->environment()); |
| 1711 | } else { |
| 1712 | __ shr(ToRegister(left), shift_count); |
| 1713 | } |
| 1714 | break; |
| 1715 | case Token::SHL: |
| 1716 | if (shift_count != 0) { |
| 1717 | __ shl(ToRegister(left), shift_count); |
| 1718 | } |
| 1719 | break; |
| 1720 | default: |
| 1721 | UNREACHABLE(); |
| 1722 | break; |
| 1723 | } |
| 1724 | } |
| 1725 | } |
| 1726 | |
| 1727 | |
| 1728 | void LCodeGen::DoSubI(LSubI* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1729 | LOperand* left = instr->left(); |
| 1730 | LOperand* right = instr->right(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1731 | ASSERT(left->Equals(instr->result())); |
| 1732 | |
| 1733 | if (right->IsConstantOperand()) { |
danno@chromium.org | bf0c820 | 2011-12-27 10:09:42 +0000 | [diff] [blame] | 1734 | __ sub(ToOperand(left), ToInteger32Immediate(right)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1735 | } else { |
| 1736 | __ sub(ToRegister(left), ToOperand(right)); |
| 1737 | } |
| 1738 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1739 | DeoptimizeIf(overflow, instr->environment()); |
| 1740 | } |
| 1741 | } |
| 1742 | |
| 1743 | |
| 1744 | void LCodeGen::DoConstantI(LConstantI* instr) { |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 1745 | __ Set(ToRegister(instr->result()), Immediate(instr->value())); |
| 1746 | } |
| 1747 | |
| 1748 | |
| 1749 | void LCodeGen::DoConstantS(LConstantS* instr) { |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 1750 | __ Set(ToRegister(instr->result()), Immediate(instr->value())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1751 | } |
| 1752 | |
| 1753 | |
| 1754 | void LCodeGen::DoConstantD(LConstantD* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1755 | double v = instr->value(); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1756 | uint64_t int_val = BitCast<uint64_t, double>(v); |
| 1757 | int32_t lower = static_cast<int32_t>(int_val); |
| 1758 | int32_t upper = static_cast<int32_t>(int_val >> (kBitsPerInt)); |
| 1759 | |
| 1760 | if (!CpuFeatures::IsSafeForSnapshot(SSE2)) { |
| 1761 | __ push(Immediate(lower)); |
| 1762 | __ push(Immediate(upper)); |
| 1763 | PushX87DoubleOperand(Operand(esp, 0)); |
| 1764 | __ add(Operand(esp), Immediate(kDoubleSize)); |
| 1765 | CurrentInstructionReturnsX87Result(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1766 | } else { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1767 | CpuFeatureScope scope1(masm(), SSE2); |
| 1768 | ASSERT(instr->result()->IsDoubleRegister()); |
| 1769 | XMMRegister res = ToDoubleRegister(instr->result()); |
| 1770 | if (int_val == 0) { |
| 1771 | __ xorps(res, res); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1772 | } else { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1773 | Register temp = ToRegister(instr->temp()); |
| 1774 | if (CpuFeatures::IsSupported(SSE4_1)) { |
| 1775 | CpuFeatureScope scope2(masm(), SSE4_1); |
| 1776 | if (lower != 0) { |
| 1777 | __ Set(temp, Immediate(lower)); |
| 1778 | __ movd(res, Operand(temp)); |
| 1779 | __ Set(temp, Immediate(upper)); |
| 1780 | __ pinsrd(res, Operand(temp), 1); |
| 1781 | } else { |
| 1782 | __ xorps(res, res); |
| 1783 | __ Set(temp, Immediate(upper)); |
| 1784 | __ pinsrd(res, Operand(temp), 1); |
| 1785 | } |
| 1786 | } else { |
| 1787 | __ Set(temp, Immediate(upper)); |
| 1788 | __ movd(res, Operand(temp)); |
| 1789 | __ psllq(res, 32); |
| 1790 | if (lower != 0) { |
| 1791 | __ Set(temp, Immediate(lower)); |
| 1792 | __ movd(xmm0, Operand(temp)); |
| 1793 | __ por(res, xmm0); |
| 1794 | } |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 1795 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1796 | } |
| 1797 | } |
| 1798 | } |
| 1799 | |
| 1800 | |
| 1801 | void LCodeGen::DoConstantT(LConstantT* instr) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1802 | Register reg = ToRegister(instr->result()); |
| 1803 | Handle<Object> handle = instr->value(); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 1804 | AllowDeferredHandleDereference smi_check; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1805 | if (handle->IsHeapObject()) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1806 | __ LoadHeapObject(reg, Handle<HeapObject>::cast(handle)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1807 | } else { |
| 1808 | __ Set(reg, Immediate(handle)); |
| 1809 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1810 | } |
| 1811 | |
| 1812 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 1813 | void LCodeGen::DoFixedArrayBaseLength( |
| 1814 | LFixedArrayBaseLength* instr) { |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 1815 | Register result = ToRegister(instr->result()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1816 | Register array = ToRegister(instr->value()); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 1817 | __ mov(result, FieldOperand(array, FixedArrayBase::kLengthOffset)); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1818 | } |
| 1819 | |
| 1820 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 1821 | void LCodeGen::DoMapEnumLength(LMapEnumLength* instr) { |
| 1822 | Register result = ToRegister(instr->result()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1823 | Register map = ToRegister(instr->value()); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 1824 | __ EnumLength(result, map); |
| 1825 | } |
| 1826 | |
| 1827 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1828 | void LCodeGen::DoElementsKind(LElementsKind* instr) { |
| 1829 | Register result = ToRegister(instr->result()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1830 | Register input = ToRegister(instr->value()); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1831 | |
| 1832 | // Load map into |result|. |
| 1833 | __ mov(result, FieldOperand(input, HeapObject::kMapOffset)); |
| 1834 | // Load the map's "bit field 2" into |result|. We only need the first byte, |
| 1835 | // but the following masking takes care of that anyway. |
| 1836 | __ mov(result, FieldOperand(result, Map::kBitField2Offset)); |
| 1837 | // Retrieve elements_kind from bit field 2. |
| 1838 | __ and_(result, Map::kElementsKindMask); |
| 1839 | __ shr(result, Map::kElementsKindShift); |
| 1840 | } |
| 1841 | |
| 1842 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1843 | void LCodeGen::DoValueOf(LValueOf* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1844 | Register input = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1845 | Register result = ToRegister(instr->result()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1846 | Register map = ToRegister(instr->temp()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1847 | ASSERT(input.is(result)); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1848 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1849 | Label done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1850 | // If the object is a smi return the object. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1851 | __ JumpIfSmi(input, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1852 | |
| 1853 | // If the object is not a value type, return the object. |
| 1854 | __ CmpObjectType(input, JS_VALUE_TYPE, map); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1855 | __ j(not_equal, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1856 | __ mov(result, FieldOperand(input, JSValue::kValueOffset)); |
| 1857 | |
| 1858 | __ bind(&done); |
| 1859 | } |
| 1860 | |
| 1861 | |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1862 | void LCodeGen::DoDateField(LDateField* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1863 | Register object = ToRegister(instr->date()); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1864 | Register result = ToRegister(instr->result()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1865 | Register scratch = ToRegister(instr->temp()); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1866 | Smi* index = instr->index(); |
| 1867 | Label runtime, done; |
| 1868 | ASSERT(object.is(result)); |
| 1869 | ASSERT(object.is(eax)); |
| 1870 | |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 1871 | __ test(object, Immediate(kSmiTagMask)); |
| 1872 | DeoptimizeIf(zero, instr->environment()); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1873 | __ CmpObjectType(object, JS_DATE_TYPE, scratch); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 1874 | DeoptimizeIf(not_equal, instr->environment()); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1875 | |
| 1876 | if (index->value() == 0) { |
| 1877 | __ mov(result, FieldOperand(object, JSDate::kValueOffset)); |
| 1878 | } else { |
| 1879 | if (index->value() < JSDate::kFirstUncachedField) { |
| 1880 | ExternalReference stamp = ExternalReference::date_cache_stamp(isolate()); |
| 1881 | __ mov(scratch, Operand::StaticVariable(stamp)); |
| 1882 | __ cmp(scratch, FieldOperand(object, JSDate::kCacheStampOffset)); |
| 1883 | __ j(not_equal, &runtime, Label::kNear); |
| 1884 | __ mov(result, FieldOperand(object, JSDate::kValueOffset + |
| 1885 | kPointerSize * index->value())); |
| 1886 | __ jmp(&done); |
| 1887 | } |
| 1888 | __ bind(&runtime); |
| 1889 | __ PrepareCallCFunction(2, scratch); |
| 1890 | __ mov(Operand(esp, 0), object); |
| 1891 | __ mov(Operand(esp, 1 * kPointerSize), Immediate(index)); |
| 1892 | __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2); |
| 1893 | __ bind(&done); |
| 1894 | } |
| 1895 | } |
| 1896 | |
| 1897 | |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 1898 | void LCodeGen::DoSeqStringSetChar(LSeqStringSetChar* instr) { |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 1899 | Register string = ToRegister(instr->string()); |
| 1900 | Register index = ToRegister(instr->index()); |
| 1901 | Register value = ToRegister(instr->value()); |
| 1902 | String::Encoding encoding = instr->encoding(); |
| 1903 | |
| 1904 | if (FLAG_debug_code) { |
| 1905 | __ push(value); |
| 1906 | __ mov(value, FieldOperand(string, HeapObject::kMapOffset)); |
| 1907 | __ movzx_b(value, FieldOperand(value, Map::kInstanceTypeOffset)); |
| 1908 | |
| 1909 | __ and_(value, Immediate(kStringRepresentationMask | kStringEncodingMask)); |
| 1910 | static const uint32_t one_byte_seq_type = kSeqStringTag | kOneByteStringTag; |
| 1911 | static const uint32_t two_byte_seq_type = kSeqStringTag | kTwoByteStringTag; |
| 1912 | __ cmp(value, Immediate(encoding == String::ONE_BYTE_ENCODING |
| 1913 | ? one_byte_seq_type : two_byte_seq_type)); |
| 1914 | __ Check(equal, "Unexpected string type"); |
| 1915 | __ pop(value); |
| 1916 | } |
| 1917 | |
| 1918 | if (encoding == String::ONE_BYTE_ENCODING) { |
| 1919 | __ mov_b(FieldOperand(string, index, times_1, SeqString::kHeaderSize), |
| 1920 | value); |
| 1921 | } else { |
| 1922 | __ mov_w(FieldOperand(string, index, times_2, SeqString::kHeaderSize), |
| 1923 | value); |
| 1924 | } |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 1925 | } |
| 1926 | |
| 1927 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1928 | void LCodeGen::DoBitNotI(LBitNotI* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1929 | LOperand* input = instr->value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1930 | ASSERT(input->Equals(instr->result())); |
| 1931 | __ not_(ToRegister(input)); |
| 1932 | } |
| 1933 | |
| 1934 | |
| 1935 | void LCodeGen::DoThrow(LThrow* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 1936 | __ push(ToOperand(instr->value())); |
| 1937 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 1938 | CallRuntime(Runtime::kThrow, 1, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1939 | |
| 1940 | if (FLAG_debug_code) { |
| 1941 | Comment("Unreachable code."); |
| 1942 | __ int3(); |
| 1943 | } |
| 1944 | } |
| 1945 | |
| 1946 | |
| 1947 | void LCodeGen::DoAddI(LAddI* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1948 | LOperand* left = instr->left(); |
| 1949 | LOperand* right = instr->right(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1950 | |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 1951 | if (LAddI::UseLea(instr->hydrogen()) && !left->Equals(instr->result())) { |
| 1952 | if (right->IsConstantOperand()) { |
| 1953 | int32_t offset = ToInteger32(LConstantOperand::cast(right)); |
| 1954 | __ lea(ToRegister(instr->result()), MemOperand(ToRegister(left), offset)); |
| 1955 | } else { |
| 1956 | Operand address(ToRegister(left), ToRegister(right), times_1, 0); |
| 1957 | __ lea(ToRegister(instr->result()), address); |
| 1958 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1959 | } else { |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 1960 | if (right->IsConstantOperand()) { |
| 1961 | __ add(ToOperand(left), ToInteger32Immediate(right)); |
| 1962 | } else { |
| 1963 | __ add(ToRegister(left), ToOperand(right)); |
| 1964 | } |
| 1965 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1966 | DeoptimizeIf(overflow, instr->environment()); |
| 1967 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1968 | } |
| 1969 | } |
| 1970 | |
| 1971 | |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1972 | void LCodeGen::DoMathMinMax(LMathMinMax* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1973 | CpuFeatureScope scope(masm(), SSE2); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1974 | LOperand* left = instr->left(); |
| 1975 | LOperand* right = instr->right(); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1976 | ASSERT(left->Equals(instr->result())); |
| 1977 | HMathMinMax::Operation operation = instr->hydrogen()->operation(); |
| 1978 | if (instr->hydrogen()->representation().IsInteger32()) { |
| 1979 | Label return_left; |
| 1980 | Condition condition = (operation == HMathMinMax::kMathMin) |
| 1981 | ? less_equal |
| 1982 | : greater_equal; |
| 1983 | if (right->IsConstantOperand()) { |
| 1984 | Operand left_op = ToOperand(left); |
| 1985 | Immediate right_imm = ToInteger32Immediate(right); |
| 1986 | __ cmp(left_op, right_imm); |
| 1987 | __ j(condition, &return_left, Label::kNear); |
| 1988 | __ mov(left_op, right_imm); |
| 1989 | } else { |
| 1990 | Register left_reg = ToRegister(left); |
| 1991 | Operand right_op = ToOperand(right); |
| 1992 | __ cmp(left_reg, right_op); |
| 1993 | __ j(condition, &return_left, Label::kNear); |
| 1994 | __ mov(left_reg, right_op); |
| 1995 | } |
| 1996 | __ bind(&return_left); |
| 1997 | } else { |
| 1998 | ASSERT(instr->hydrogen()->representation().IsDouble()); |
| 1999 | Label check_nan_left, check_zero, return_left, return_right; |
| 2000 | Condition condition = (operation == HMathMinMax::kMathMin) ? below : above; |
| 2001 | XMMRegister left_reg = ToDoubleRegister(left); |
| 2002 | XMMRegister right_reg = ToDoubleRegister(right); |
| 2003 | __ ucomisd(left_reg, right_reg); |
| 2004 | __ j(parity_even, &check_nan_left, Label::kNear); // At least one NaN. |
| 2005 | __ j(equal, &check_zero, Label::kNear); // left == right. |
| 2006 | __ j(condition, &return_left, Label::kNear); |
| 2007 | __ jmp(&return_right, Label::kNear); |
| 2008 | |
| 2009 | __ bind(&check_zero); |
| 2010 | XMMRegister xmm_scratch = xmm0; |
| 2011 | __ xorps(xmm_scratch, xmm_scratch); |
| 2012 | __ ucomisd(left_reg, xmm_scratch); |
| 2013 | __ j(not_equal, &return_left, Label::kNear); // left == right != 0. |
| 2014 | // At this point, both left and right are either 0 or -0. |
| 2015 | if (operation == HMathMinMax::kMathMin) { |
| 2016 | __ orpd(left_reg, right_reg); |
| 2017 | } else { |
| 2018 | // Since we operate on +0 and/or -0, addsd and andsd have the same effect. |
| 2019 | __ addsd(left_reg, right_reg); |
| 2020 | } |
| 2021 | __ jmp(&return_left, Label::kNear); |
| 2022 | |
| 2023 | __ bind(&check_nan_left); |
| 2024 | __ ucomisd(left_reg, left_reg); // NaN check. |
| 2025 | __ j(parity_even, &return_left, Label::kNear); // left == NaN. |
| 2026 | __ bind(&return_right); |
| 2027 | __ movsd(left_reg, right_reg); |
| 2028 | |
| 2029 | __ bind(&return_left); |
| 2030 | } |
| 2031 | } |
| 2032 | |
| 2033 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2034 | void LCodeGen::DoArithmeticD(LArithmeticD* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2035 | CpuFeatureScope scope(masm(), SSE2); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2036 | XMMRegister left = ToDoubleRegister(instr->left()); |
| 2037 | XMMRegister right = ToDoubleRegister(instr->right()); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2038 | XMMRegister result = ToDoubleRegister(instr->result()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2039 | // Modulo uses a fixed result register. |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2040 | ASSERT(instr->op() == Token::MOD || left.is(result)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2041 | switch (instr->op()) { |
| 2042 | case Token::ADD: |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2043 | __ addsd(left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2044 | break; |
| 2045 | case Token::SUB: |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2046 | __ subsd(left, right); |
| 2047 | break; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2048 | case Token::MUL: |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2049 | __ mulsd(left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2050 | break; |
| 2051 | case Token::DIV: |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2052 | __ divsd(left, right); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 2053 | // Don't delete this mov. It may improve performance on some CPUs, |
| 2054 | // when there is a mulsd depending on the result |
| 2055 | __ movaps(left, left); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2056 | break; |
| 2057 | case Token::MOD: { |
| 2058 | // Pass two doubles as arguments on the stack. |
| 2059 | __ PrepareCallCFunction(4, eax); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2060 | __ movdbl(Operand(esp, 0 * kDoubleSize), left); |
| 2061 | __ movdbl(Operand(esp, 1 * kDoubleSize), right); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2062 | __ CallCFunction( |
| 2063 | ExternalReference::double_fp_operation(Token::MOD, isolate()), |
| 2064 | 4); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2065 | |
| 2066 | // Return value is in st(0) on ia32. |
| 2067 | // Store it into the (fixed) result register. |
| 2068 | __ sub(Operand(esp), Immediate(kDoubleSize)); |
| 2069 | __ fstp_d(Operand(esp, 0)); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2070 | __ movdbl(result, Operand(esp, 0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2071 | __ add(Operand(esp), Immediate(kDoubleSize)); |
| 2072 | break; |
| 2073 | } |
| 2074 | default: |
| 2075 | UNREACHABLE(); |
| 2076 | break; |
| 2077 | } |
| 2078 | } |
| 2079 | |
| 2080 | |
| 2081 | void LCodeGen::DoArithmeticT(LArithmeticT* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2082 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 2083 | ASSERT(ToRegister(instr->left()).is(edx)); |
| 2084 | ASSERT(ToRegister(instr->right()).is(eax)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2085 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 2086 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2087 | BinaryOpStub stub(instr->op(), NO_OVERWRITE); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2088 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 2089 | __ nop(); // Signals no inlined code. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2090 | } |
| 2091 | |
| 2092 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2093 | int LCodeGen::GetNextEmittedBlock() const { |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 2094 | for (int i = current_block_ + 1; i < graph()->blocks()->length(); ++i) { |
| 2095 | if (!chunk_->GetLabel(i)->HasReplacement()) return i; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2096 | } |
| 2097 | return -1; |
| 2098 | } |
| 2099 | |
| 2100 | |
| 2101 | void LCodeGen::EmitBranch(int left_block, int right_block, Condition cc) { |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 2102 | int next_block = GetNextEmittedBlock(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2103 | right_block = chunk_->LookupDestination(right_block); |
| 2104 | left_block = chunk_->LookupDestination(left_block); |
| 2105 | |
| 2106 | if (right_block == left_block) { |
| 2107 | EmitGoto(left_block); |
| 2108 | } else if (left_block == next_block) { |
| 2109 | __ j(NegateCondition(cc), chunk_->GetAssemblyLabel(right_block)); |
| 2110 | } else if (right_block == next_block) { |
| 2111 | __ j(cc, chunk_->GetAssemblyLabel(left_block)); |
| 2112 | } else { |
| 2113 | __ j(cc, chunk_->GetAssemblyLabel(left_block)); |
| 2114 | __ jmp(chunk_->GetAssemblyLabel(right_block)); |
| 2115 | } |
| 2116 | } |
| 2117 | |
| 2118 | |
| 2119 | void LCodeGen::DoBranch(LBranch* instr) { |
| 2120 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 2121 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2122 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 2123 | Representation r = instr->hydrogen()->value()->representation(); |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 2124 | if (r.IsSmiOrInteger32()) { |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 2125 | ASSERT(!info()->IsStub()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2126 | Register reg = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2127 | __ test(reg, Operand(reg)); |
| 2128 | EmitBranch(true_block, false_block, not_zero); |
| 2129 | } else if (r.IsDouble()) { |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 2130 | ASSERT(!info()->IsStub()); |
| 2131 | CpuFeatureScope scope(masm(), SSE2); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2132 | XMMRegister reg = ToDoubleRegister(instr->value()); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 2133 | __ xorps(xmm0, xmm0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2134 | __ ucomisd(reg, xmm0); |
| 2135 | EmitBranch(true_block, false_block, not_equal); |
| 2136 | } else { |
| 2137 | ASSERT(r.IsTagged()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2138 | Register reg = ToRegister(instr->value()); |
lrn@chromium.org | d4e9e22 | 2011-08-03 12:01:58 +0000 | [diff] [blame] | 2139 | HType type = instr->hydrogen()->value()->type(); |
| 2140 | if (type.IsBoolean()) { |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 2141 | ASSERT(!info()->IsStub()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2142 | __ cmp(reg, factory()->true_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2143 | EmitBranch(true_block, false_block, equal); |
lrn@chromium.org | d4e9e22 | 2011-08-03 12:01:58 +0000 | [diff] [blame] | 2144 | } else if (type.IsSmi()) { |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 2145 | ASSERT(!info()->IsStub()); |
lrn@chromium.org | d4e9e22 | 2011-08-03 12:01:58 +0000 | [diff] [blame] | 2146 | __ test(reg, Operand(reg)); |
| 2147 | EmitBranch(true_block, false_block, not_equal); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2148 | } else { |
| 2149 | Label* true_label = chunk_->GetAssemblyLabel(true_block); |
| 2150 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 2151 | |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2152 | ToBooleanStub::Types expected = instr->hydrogen()->expected_input_types(); |
| 2153 | // Avoid deopts in the case where we've never executed this path before. |
| 2154 | if (expected.IsEmpty()) expected = ToBooleanStub::all_types(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2155 | |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2156 | if (expected.Contains(ToBooleanStub::UNDEFINED)) { |
| 2157 | // undefined -> false. |
| 2158 | __ cmp(reg, factory()->undefined_value()); |
| 2159 | __ j(equal, false_label); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2160 | } |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2161 | if (expected.Contains(ToBooleanStub::BOOLEAN)) { |
| 2162 | // true -> true. |
| 2163 | __ cmp(reg, factory()->true_value()); |
| 2164 | __ j(equal, true_label); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2165 | // false -> false. |
| 2166 | __ cmp(reg, factory()->false_value()); |
| 2167 | __ j(equal, false_label); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2168 | } |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2169 | if (expected.Contains(ToBooleanStub::NULL_TYPE)) { |
| 2170 | // 'null' -> false. |
| 2171 | __ cmp(reg, factory()->null_value()); |
| 2172 | __ j(equal, false_label); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2173 | } |
| 2174 | |
| 2175 | if (expected.Contains(ToBooleanStub::SMI)) { |
| 2176 | // Smis: 0 -> false, all other -> true. |
| 2177 | __ test(reg, Operand(reg)); |
| 2178 | __ j(equal, false_label); |
| 2179 | __ JumpIfSmi(reg, true_label); |
| 2180 | } else if (expected.NeedsMap()) { |
| 2181 | // If we need a map later and have a Smi -> deopt. |
| 2182 | __ test(reg, Immediate(kSmiTagMask)); |
| 2183 | DeoptimizeIf(zero, instr->environment()); |
| 2184 | } |
| 2185 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 2186 | Register map = no_reg; // Keep the compiler happy. |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2187 | if (expected.NeedsMap()) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2188 | map = ToRegister(instr->temp()); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2189 | ASSERT(!map.is(reg)); |
| 2190 | __ mov(map, FieldOperand(reg, HeapObject::kMapOffset)); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 2191 | |
| 2192 | if (expected.CanBeUndetectable()) { |
| 2193 | // Undetectable -> false. |
| 2194 | __ test_b(FieldOperand(map, Map::kBitFieldOffset), |
| 2195 | 1 << Map::kIsUndetectable); |
| 2196 | __ j(not_zero, false_label); |
| 2197 | } |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2198 | } |
| 2199 | |
| 2200 | if (expected.Contains(ToBooleanStub::SPEC_OBJECT)) { |
| 2201 | // spec object -> true. |
| 2202 | __ CmpInstanceType(map, FIRST_SPEC_OBJECT_TYPE); |
| 2203 | __ j(above_equal, true_label); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2204 | } |
| 2205 | |
| 2206 | if (expected.Contains(ToBooleanStub::STRING)) { |
| 2207 | // String value -> false iff empty. |
| 2208 | Label not_string; |
| 2209 | __ CmpInstanceType(map, FIRST_NONSTRING_TYPE); |
| 2210 | __ j(above_equal, ¬_string, Label::kNear); |
| 2211 | __ cmp(FieldOperand(reg, String::kLengthOffset), Immediate(0)); |
| 2212 | __ j(not_zero, true_label); |
| 2213 | __ jmp(false_label); |
| 2214 | __ bind(¬_string); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2215 | } |
| 2216 | |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 2217 | if (expected.Contains(ToBooleanStub::SYMBOL)) { |
| 2218 | // Symbol value -> true. |
| 2219 | __ CmpInstanceType(map, SYMBOL_TYPE); |
| 2220 | __ j(equal, true_label); |
| 2221 | } |
| 2222 | |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2223 | if (expected.Contains(ToBooleanStub::HEAP_NUMBER)) { |
| 2224 | // heap number -> false iff +0, -0, or NaN. |
| 2225 | Label not_heap_number; |
| 2226 | __ cmp(FieldOperand(reg, HeapObject::kMapOffset), |
| 2227 | factory()->heap_number_map()); |
| 2228 | __ j(not_equal, ¬_heap_number, Label::kNear); |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 2229 | if (CpuFeatures::IsSafeForSnapshot(SSE2)) { |
| 2230 | CpuFeatureScope scope(masm(), SSE2); |
| 2231 | __ xorps(xmm0, xmm0); |
| 2232 | __ ucomisd(xmm0, FieldOperand(reg, HeapNumber::kValueOffset)); |
| 2233 | } else { |
| 2234 | __ fldz(); |
| 2235 | __ fld_d(FieldOperand(reg, HeapNumber::kValueOffset)); |
| 2236 | __ FCmp(); |
| 2237 | } |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2238 | __ j(zero, false_label); |
| 2239 | __ jmp(true_label); |
| 2240 | __ bind(¬_heap_number); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 2241 | } |
| 2242 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 2243 | // We've seen something for the first time -> deopt. |
| 2244 | DeoptimizeIf(no_condition, instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2245 | } |
| 2246 | } |
| 2247 | } |
| 2248 | |
| 2249 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 2250 | void LCodeGen::EmitGoto(int block) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2251 | if (!IsNextEmittedBlock(block)) { |
| 2252 | __ jmp(chunk_->GetAssemblyLabel(chunk_->LookupDestination(block))); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2253 | } |
| 2254 | } |
| 2255 | |
| 2256 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2257 | void LCodeGen::DoGoto(LGoto* instr) { |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 2258 | EmitGoto(instr->block_id()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2259 | } |
| 2260 | |
| 2261 | |
| 2262 | Condition LCodeGen::TokenToCondition(Token::Value op, bool is_unsigned) { |
| 2263 | Condition cond = no_condition; |
| 2264 | switch (op) { |
| 2265 | case Token::EQ: |
| 2266 | case Token::EQ_STRICT: |
| 2267 | cond = equal; |
| 2268 | break; |
| 2269 | case Token::LT: |
| 2270 | cond = is_unsigned ? below : less; |
| 2271 | break; |
| 2272 | case Token::GT: |
| 2273 | cond = is_unsigned ? above : greater; |
| 2274 | break; |
| 2275 | case Token::LTE: |
| 2276 | cond = is_unsigned ? below_equal : less_equal; |
| 2277 | break; |
| 2278 | case Token::GTE: |
| 2279 | cond = is_unsigned ? above_equal : greater_equal; |
| 2280 | break; |
| 2281 | case Token::IN: |
| 2282 | case Token::INSTANCEOF: |
| 2283 | default: |
| 2284 | UNREACHABLE(); |
| 2285 | } |
| 2286 | return cond; |
| 2287 | } |
| 2288 | |
| 2289 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2290 | void LCodeGen::DoCmpIDAndBranch(LCmpIDAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2291 | LOperand* left = instr->left(); |
| 2292 | LOperand* right = instr->right(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2293 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2294 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2295 | Condition cc = TokenToCondition(instr->op(), instr->is_double()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2296 | |
| 2297 | if (left->IsConstantOperand() && right->IsConstantOperand()) { |
| 2298 | // We can statically evaluate the comparison. |
| 2299 | double left_val = ToDouble(LConstantOperand::cast(left)); |
| 2300 | double right_val = ToDouble(LConstantOperand::cast(right)); |
| 2301 | int next_block = |
| 2302 | EvalComparison(instr->op(), left_val, right_val) ? true_block |
| 2303 | : false_block; |
| 2304 | EmitGoto(next_block); |
| 2305 | } else { |
| 2306 | if (instr->is_double()) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2307 | CpuFeatureScope scope(masm(), SSE2); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2308 | // Don't base result on EFLAGS when a NaN is involved. Instead |
| 2309 | // jump to the false block. |
| 2310 | __ ucomisd(ToDoubleRegister(left), ToDoubleRegister(right)); |
| 2311 | __ j(parity_even, chunk_->GetAssemblyLabel(false_block)); |
| 2312 | } else { |
| 2313 | if (right->IsConstantOperand()) { |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 2314 | int32_t const_value = ToInteger32(LConstantOperand::cast(right)); |
| 2315 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 2316 | __ cmp(ToOperand(left), Immediate(Smi::FromInt(const_value))); |
| 2317 | } else { |
| 2318 | __ cmp(ToOperand(left), Immediate(const_value)); |
| 2319 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2320 | } else if (left->IsConstantOperand()) { |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 2321 | int32_t const_value = ToInteger32(LConstantOperand::cast(left)); |
| 2322 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 2323 | __ cmp(ToOperand(right), Immediate(Smi::FromInt(const_value))); |
| 2324 | } else { |
| 2325 | __ cmp(ToOperand(right), Immediate(const_value)); |
| 2326 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2327 | // We transposed the operands. Reverse the condition. |
| 2328 | cc = ReverseCondition(cc); |
| 2329 | } else { |
| 2330 | __ cmp(ToRegister(left), ToOperand(right)); |
| 2331 | } |
| 2332 | } |
| 2333 | EmitBranch(true_block, false_block, cc); |
| 2334 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2335 | } |
| 2336 | |
| 2337 | |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 2338 | void LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2339 | Register left = ToRegister(instr->left()); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2340 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2341 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 2342 | |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2343 | if (instr->right()->IsConstantOperand()) { |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 2344 | Handle<Object> right = ToHandle(LConstantOperand::cast(instr->right())); |
| 2345 | __ CmpObject(left, right); |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2346 | } else { |
| 2347 | Operand right = ToOperand(instr->right()); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 2348 | __ cmp(left, right); |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2349 | } |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2350 | EmitBranch(true_block, false_block, equal); |
| 2351 | } |
| 2352 | |
| 2353 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2354 | void LCodeGen::DoCmpConstantEqAndBranch(LCmpConstantEqAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2355 | Register left = ToRegister(instr->left()); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2356 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 2357 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2358 | |
| 2359 | __ cmp(left, instr->hydrogen()->right()); |
| 2360 | EmitBranch(true_block, false_block, equal); |
| 2361 | } |
| 2362 | |
| 2363 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2364 | Condition LCodeGen::EmitIsObject(Register input, |
| 2365 | Register temp1, |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2366 | Label* is_not_object, |
| 2367 | Label* is_object) { |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2368 | __ JumpIfSmi(input, is_not_object); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2369 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2370 | __ cmp(input, isolate()->factory()->null_value()); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2371 | __ j(equal, is_object); |
| 2372 | |
| 2373 | __ mov(temp1, FieldOperand(input, HeapObject::kMapOffset)); |
| 2374 | // Undetectable objects behave like undefined. |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2375 | __ test_b(FieldOperand(temp1, Map::kBitFieldOffset), |
| 2376 | 1 << Map::kIsUndetectable); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2377 | __ j(not_zero, is_not_object); |
| 2378 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2379 | __ movzx_b(temp1, FieldOperand(temp1, Map::kInstanceTypeOffset)); |
| 2380 | __ cmp(temp1, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2381 | __ j(below, is_not_object); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2382 | __ cmp(temp1, LAST_NONCALLABLE_SPEC_OBJECT_TYPE); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2383 | return below_equal; |
| 2384 | } |
| 2385 | |
| 2386 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2387 | void LCodeGen::DoIsObjectAndBranch(LIsObjectAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2388 | Register reg = ToRegister(instr->value()); |
| 2389 | Register temp = ToRegister(instr->temp()); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2390 | |
| 2391 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 2392 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2393 | Label* true_label = chunk_->GetAssemblyLabel(true_block); |
| 2394 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 2395 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2396 | Condition true_cond = EmitIsObject(reg, temp, false_label, true_label); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2397 | |
| 2398 | EmitBranch(true_block, false_block, true_cond); |
| 2399 | } |
| 2400 | |
| 2401 | |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2402 | Condition LCodeGen::EmitIsString(Register input, |
| 2403 | Register temp1, |
| 2404 | Label* is_not_string) { |
| 2405 | __ JumpIfSmi(input, is_not_string); |
| 2406 | |
| 2407 | Condition cond = masm_->IsObjectStringType(input, temp1, temp1); |
| 2408 | |
| 2409 | return cond; |
| 2410 | } |
| 2411 | |
| 2412 | |
| 2413 | void LCodeGen::DoIsStringAndBranch(LIsStringAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2414 | Register reg = ToRegister(instr->value()); |
| 2415 | Register temp = ToRegister(instr->temp()); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2416 | |
| 2417 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 2418 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2419 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 2420 | |
| 2421 | Condition true_cond = EmitIsString(reg, temp, false_label); |
| 2422 | |
| 2423 | EmitBranch(true_block, false_block, true_cond); |
| 2424 | } |
| 2425 | |
| 2426 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2427 | void LCodeGen::DoIsSmiAndBranch(LIsSmiAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2428 | Operand input = ToOperand(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2429 | |
| 2430 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 2431 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2432 | |
| 2433 | __ test(input, Immediate(kSmiTagMask)); |
| 2434 | EmitBranch(true_block, false_block, zero); |
| 2435 | } |
| 2436 | |
| 2437 | |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2438 | void LCodeGen::DoIsUndetectableAndBranch(LIsUndetectableAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2439 | Register input = ToRegister(instr->value()); |
| 2440 | Register temp = ToRegister(instr->temp()); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2441 | |
| 2442 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 2443 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2444 | |
| 2445 | STATIC_ASSERT(kSmiTag == 0); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2446 | __ JumpIfSmi(input, chunk_->GetAssemblyLabel(false_block)); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2447 | __ mov(temp, FieldOperand(input, HeapObject::kMapOffset)); |
| 2448 | __ test_b(FieldOperand(temp, Map::kBitFieldOffset), |
| 2449 | 1 << Map::kIsUndetectable); |
| 2450 | EmitBranch(true_block, false_block, not_zero); |
| 2451 | } |
| 2452 | |
| 2453 | |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2454 | static Condition ComputeCompareCondition(Token::Value op) { |
| 2455 | switch (op) { |
| 2456 | case Token::EQ_STRICT: |
| 2457 | case Token::EQ: |
| 2458 | return equal; |
| 2459 | case Token::LT: |
| 2460 | return less; |
| 2461 | case Token::GT: |
| 2462 | return greater; |
| 2463 | case Token::LTE: |
| 2464 | return less_equal; |
| 2465 | case Token::GTE: |
| 2466 | return greater_equal; |
| 2467 | default: |
| 2468 | UNREACHABLE(); |
| 2469 | return no_condition; |
| 2470 | } |
| 2471 | } |
| 2472 | |
| 2473 | |
| 2474 | void LCodeGen::DoStringCompareAndBranch(LStringCompareAndBranch* instr) { |
| 2475 | Token::Value op = instr->op(); |
| 2476 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 2477 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2478 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2479 | Handle<Code> ic = CompareIC::GetUninitialized(isolate(), op); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2480 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
| 2481 | |
| 2482 | Condition condition = ComputeCompareCondition(op); |
| 2483 | __ test(eax, Operand(eax)); |
| 2484 | |
| 2485 | EmitBranch(true_block, false_block, condition); |
| 2486 | } |
| 2487 | |
| 2488 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 2489 | static InstanceType TestType(HHasInstanceTypeAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2490 | InstanceType from = instr->from(); |
| 2491 | InstanceType to = instr->to(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2492 | if (from == FIRST_TYPE) return to; |
| 2493 | ASSERT(from == to || to == LAST_TYPE); |
| 2494 | return from; |
| 2495 | } |
| 2496 | |
| 2497 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 2498 | static Condition BranchCondition(HHasInstanceTypeAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2499 | InstanceType from = instr->from(); |
| 2500 | InstanceType to = instr->to(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2501 | if (from == to) return equal; |
| 2502 | if (to == LAST_TYPE) return above_equal; |
| 2503 | if (from == FIRST_TYPE) return below_equal; |
| 2504 | UNREACHABLE(); |
| 2505 | return equal; |
| 2506 | } |
| 2507 | |
| 2508 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2509 | void LCodeGen::DoHasInstanceTypeAndBranch(LHasInstanceTypeAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2510 | Register input = ToRegister(instr->value()); |
| 2511 | Register temp = ToRegister(instr->temp()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2512 | |
| 2513 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 2514 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2515 | |
| 2516 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 2517 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2518 | __ JumpIfSmi(input, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2519 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2520 | __ CmpObjectType(input, TestType(instr->hydrogen()), temp); |
| 2521 | EmitBranch(true_block, false_block, BranchCondition(instr->hydrogen())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2522 | } |
| 2523 | |
| 2524 | |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2525 | void LCodeGen::DoGetCachedArrayIndex(LGetCachedArrayIndex* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2526 | Register input = ToRegister(instr->value()); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2527 | Register result = ToRegister(instr->result()); |
| 2528 | |
svenpanne@chromium.org | c859c4f | 2012-10-15 11:51:39 +0000 | [diff] [blame] | 2529 | __ AssertString(input); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2530 | |
| 2531 | __ mov(result, FieldOperand(input, String::kHashFieldOffset)); |
| 2532 | __ IndexFromHash(result, result); |
| 2533 | } |
| 2534 | |
| 2535 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2536 | void LCodeGen::DoHasCachedArrayIndexAndBranch( |
| 2537 | LHasCachedArrayIndexAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2538 | Register input = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2539 | |
| 2540 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 2541 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2542 | |
| 2543 | __ test(FieldOperand(input, String::kHashFieldOffset), |
| 2544 | Immediate(String::kContainsCachedArrayIndexMask)); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2545 | EmitBranch(true_block, false_block, equal); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2546 | } |
| 2547 | |
| 2548 | |
| 2549 | // Branches to a label or falls through with the answer in the z flag. Trashes |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2550 | // the temp registers, but not the input. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2551 | void LCodeGen::EmitClassOfTest(Label* is_true, |
| 2552 | Label* is_false, |
| 2553 | Handle<String>class_name, |
| 2554 | Register input, |
| 2555 | Register temp, |
| 2556 | Register temp2) { |
| 2557 | ASSERT(!input.is(temp)); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2558 | ASSERT(!input.is(temp2)); |
| 2559 | ASSERT(!temp.is(temp2)); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2560 | __ JumpIfSmi(input, is_false); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2561 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2562 | if (class_name->IsOneByteEqualTo(STATIC_ASCII_VECTOR("Function"))) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2563 | // Assuming the following assertions, we can use the same compares to test |
| 2564 | // for both being a function type and being in the object type range. |
| 2565 | STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
| 2566 | STATIC_ASSERT(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE == |
| 2567 | FIRST_SPEC_OBJECT_TYPE + 1); |
| 2568 | STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == |
| 2569 | LAST_SPEC_OBJECT_TYPE - 1); |
| 2570 | STATIC_ASSERT(LAST_SPEC_OBJECT_TYPE == LAST_TYPE); |
| 2571 | __ CmpObjectType(input, FIRST_SPEC_OBJECT_TYPE, temp); |
| 2572 | __ j(below, is_false); |
| 2573 | __ j(equal, is_true); |
| 2574 | __ CmpInstanceType(temp, LAST_SPEC_OBJECT_TYPE); |
| 2575 | __ j(equal, is_true); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2576 | } else { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2577 | // Faster code path to avoid two compares: subtract lower bound from the |
| 2578 | // actual type and do a signed compare with the width of the type range. |
| 2579 | __ mov(temp, FieldOperand(input, HeapObject::kMapOffset)); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 2580 | __ movzx_b(temp2, FieldOperand(temp, Map::kInstanceTypeOffset)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2581 | __ sub(Operand(temp2), Immediate(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 2582 | __ cmp(Operand(temp2), Immediate(LAST_NONCALLABLE_SPEC_OBJECT_TYPE - |
| 2583 | FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2584 | __ j(above, is_false); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2585 | } |
| 2586 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2587 | // Now we are in the FIRST-LAST_NONCALLABLE_SPEC_OBJECT_TYPE range. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2588 | // Check if the constructor in the map is a function. |
| 2589 | __ mov(temp, FieldOperand(temp, Map::kConstructorOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2590 | // Objects with a non-function constructor have class 'Object'. |
| 2591 | __ CmpObjectType(temp, JS_FUNCTION_TYPE, temp2); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2592 | if (class_name->IsOneByteEqualTo(STATIC_ASCII_VECTOR("Object"))) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2593 | __ j(not_equal, is_true); |
| 2594 | } else { |
| 2595 | __ j(not_equal, is_false); |
| 2596 | } |
| 2597 | |
| 2598 | // temp now contains the constructor function. Grab the |
| 2599 | // instance class name from there. |
| 2600 | __ mov(temp, FieldOperand(temp, JSFunction::kSharedFunctionInfoOffset)); |
| 2601 | __ mov(temp, FieldOperand(temp, |
| 2602 | SharedFunctionInfo::kInstanceClassNameOffset)); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2603 | // The class name we are testing against is internalized since it's a literal. |
| 2604 | // The name in the constructor is internalized because of the way the context |
| 2605 | // is booted. This routine isn't expected to work for random API-created |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2606 | // classes and it doesn't have to because you can't access it with natives |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2607 | // syntax. Since both sides are internalized it is sufficient to use an |
| 2608 | // identity comparison. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2609 | __ cmp(temp, class_name); |
| 2610 | // End with the answer in the z flag. |
| 2611 | } |
| 2612 | |
| 2613 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2614 | void LCodeGen::DoClassOfTestAndBranch(LClassOfTestAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2615 | Register input = ToRegister(instr->value()); |
| 2616 | Register temp = ToRegister(instr->temp()); |
| 2617 | Register temp2 = ToRegister(instr->temp2()); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2618 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2619 | Handle<String> class_name = instr->hydrogen()->class_name(); |
| 2620 | |
| 2621 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 2622 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 2623 | |
| 2624 | Label* true_label = chunk_->GetAssemblyLabel(true_block); |
| 2625 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 2626 | |
| 2627 | EmitClassOfTest(true_label, false_label, class_name, input, temp, temp2); |
| 2628 | |
| 2629 | EmitBranch(true_block, false_block, equal); |
| 2630 | } |
| 2631 | |
| 2632 | |
| 2633 | void LCodeGen::DoCmpMapAndBranch(LCmpMapAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2634 | Register reg = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2635 | int true_block = instr->true_block_id(); |
| 2636 | int false_block = instr->false_block_id(); |
| 2637 | |
| 2638 | __ cmp(FieldOperand(reg, HeapObject::kMapOffset), instr->map()); |
| 2639 | EmitBranch(true_block, false_block, equal); |
| 2640 | } |
| 2641 | |
| 2642 | |
| 2643 | void LCodeGen::DoInstanceOf(LInstanceOf* instr) { |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2644 | // Object and function are in fixed registers defined by the stub. |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2645 | ASSERT(ToRegister(instr->context()).is(esi)); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2646 | InstanceofStub stub(InstanceofStub::kArgsInRegisters); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2647 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2648 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2649 | Label true_value, done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2650 | __ test(eax, Operand(eax)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2651 | __ j(zero, &true_value, Label::kNear); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2652 | __ mov(ToRegister(instr->result()), factory()->false_value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2653 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2654 | __ bind(&true_value); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2655 | __ mov(ToRegister(instr->result()), factory()->true_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2656 | __ bind(&done); |
| 2657 | } |
| 2658 | |
| 2659 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2660 | void LCodeGen::DoInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr) { |
| 2661 | class DeferredInstanceOfKnownGlobal: public LDeferredCode { |
| 2662 | public: |
| 2663 | DeferredInstanceOfKnownGlobal(LCodeGen* codegen, |
| 2664 | LInstanceOfKnownGlobal* instr) |
| 2665 | : LDeferredCode(codegen), instr_(instr) { } |
| 2666 | virtual void Generate() { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 2667 | codegen()->DoDeferredInstanceOfKnownGlobal(instr_, &map_check_); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2668 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2669 | virtual LInstruction* instr() { return instr_; } |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2670 | Label* map_check() { return &map_check_; } |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2671 | private: |
| 2672 | LInstanceOfKnownGlobal* instr_; |
| 2673 | Label map_check_; |
| 2674 | }; |
| 2675 | |
| 2676 | DeferredInstanceOfKnownGlobal* deferred; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2677 | deferred = new(zone()) DeferredInstanceOfKnownGlobal(this, instr); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2678 | |
| 2679 | Label done, false_result; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2680 | Register object = ToRegister(instr->value()); |
| 2681 | Register temp = ToRegister(instr->temp()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2682 | |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 2683 | // A Smi is not an instance of anything. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2684 | __ JumpIfSmi(object, &false_result); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2685 | |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 2686 | // This is the inlined call site instanceof cache. The two occurences of the |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2687 | // hole value will be patched to the last map/result pair generated by the |
| 2688 | // instanceof stub. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2689 | Label cache_miss; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2690 | Register map = ToRegister(instr->temp()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2691 | __ mov(map, FieldOperand(object, HeapObject::kMapOffset)); |
| 2692 | __ bind(deferred->map_check()); // Label for calculating code patching. |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2693 | Handle<JSGlobalPropertyCell> cache_cell = |
| 2694 | factory()->NewJSGlobalPropertyCell(factory()->the_hole_value()); |
| 2695 | __ cmp(map, Operand::Cell(cache_cell)); // Patched to cached map. |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2696 | __ j(not_equal, &cache_miss, Label::kNear); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2697 | __ mov(eax, factory()->the_hole_value()); // Patched to either true or false. |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2698 | __ jmp(&done); |
| 2699 | |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 2700 | // The inlined call site cache did not match. Check for null and string |
| 2701 | // before calling the deferred code. |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2702 | __ bind(&cache_miss); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 2703 | // Null is not an instance of anything. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2704 | __ cmp(object, factory()->null_value()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2705 | __ j(equal, &false_result); |
| 2706 | |
| 2707 | // String values are not instances of anything. |
| 2708 | Condition is_string = masm_->IsObjectStringType(object, temp, temp); |
| 2709 | __ j(is_string, &false_result); |
| 2710 | |
| 2711 | // Go to the deferred code. |
| 2712 | __ jmp(deferred->entry()); |
| 2713 | |
| 2714 | __ bind(&false_result); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2715 | __ mov(ToRegister(instr->result()), factory()->false_value()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2716 | |
| 2717 | // Here result has either true or false. Deferred code also produces true or |
| 2718 | // false object. |
| 2719 | __ bind(deferred->exit()); |
| 2720 | __ bind(&done); |
| 2721 | } |
| 2722 | |
| 2723 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 2724 | void LCodeGen::DoDeferredInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr, |
| 2725 | Label* map_check) { |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2726 | PushSafepointRegistersScope scope(this); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2727 | |
| 2728 | InstanceofStub::Flags flags = InstanceofStub::kNoFlags; |
| 2729 | flags = static_cast<InstanceofStub::Flags>( |
| 2730 | flags | InstanceofStub::kArgsInRegisters); |
| 2731 | flags = static_cast<InstanceofStub::Flags>( |
| 2732 | flags | InstanceofStub::kCallSiteInlineCheck); |
| 2733 | flags = static_cast<InstanceofStub::Flags>( |
| 2734 | flags | InstanceofStub::kReturnTrueFalseObject); |
| 2735 | InstanceofStub stub(flags); |
| 2736 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2737 | // Get the temp register reserved by the instruction. This needs to be a |
| 2738 | // register which is pushed last by PushSafepointRegisters as top of the |
| 2739 | // stack is used to pass the offset to the location of the map check to |
| 2740 | // the stub. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2741 | Register temp = ToRegister(instr->temp()); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2742 | ASSERT(MacroAssembler::SafepointRegisterStackIndex(temp) == 0); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2743 | __ LoadHeapObject(InstanceofStub::right(), instr->function()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2744 | static const int kAdditionalDelta = 13; |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2745 | int delta = masm_->SizeOfCodeGeneratedSince(map_check) + kAdditionalDelta; |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2746 | __ mov(temp, Immediate(delta)); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2747 | __ StoreToSafepointRegisterSlot(temp, temp); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2748 | CallCodeGeneric(stub.GetCode(isolate()), |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2749 | RelocInfo::CODE_TARGET, |
| 2750 | instr, |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2751 | RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 2752 | // Get the deoptimization index of the LLazyBailout-environment that |
| 2753 | // corresponds to this instruction. |
| 2754 | LEnvironment* env = instr->GetDeferredLazyDeoptimizationEnvironment(); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 2755 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
| 2756 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2757 | // Put the result value into the eax slot and restore all registers. |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2758 | __ StoreToSafepointRegisterSlot(eax, eax); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2759 | } |
| 2760 | |
| 2761 | |
mstarzinger@chromium.org | 71fc346 | 2013-02-27 09:34:27 +0000 | [diff] [blame] | 2762 | void LCodeGen::DoInstanceSize(LInstanceSize* instr) { |
| 2763 | Register object = ToRegister(instr->object()); |
| 2764 | Register result = ToRegister(instr->result()); |
| 2765 | __ mov(result, FieldOperand(object, HeapObject::kMapOffset)); |
| 2766 | __ movzx_b(result, FieldOperand(result, Map::kInstanceSizeOffset)); |
| 2767 | } |
| 2768 | |
| 2769 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2770 | void LCodeGen::DoCmpT(LCmpT* instr) { |
| 2771 | Token::Value op = instr->op(); |
| 2772 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2773 | Handle<Code> ic = CompareIC::GetUninitialized(isolate(), op); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2774 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2775 | |
| 2776 | Condition condition = ComputeCompareCondition(op); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2777 | Label true_value, done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2778 | __ test(eax, Operand(eax)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2779 | __ j(condition, &true_value, Label::kNear); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2780 | __ mov(ToRegister(instr->result()), factory()->false_value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2781 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2782 | __ bind(&true_value); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2783 | __ mov(ToRegister(instr->result()), factory()->true_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2784 | __ bind(&done); |
| 2785 | } |
| 2786 | |
| 2787 | |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 2788 | void LCodeGen::EmitReturn(LReturn* instr, bool dynamic_frame_alignment) { |
| 2789 | int extra_value_count = dynamic_frame_alignment ? 2 : 1; |
| 2790 | |
| 2791 | if (instr->has_constant_parameter_count()) { |
| 2792 | int parameter_count = ToInteger32(instr->constant_parameter_count()); |
| 2793 | if (dynamic_frame_alignment && FLAG_debug_code) { |
| 2794 | __ cmp(Operand(esp, |
| 2795 | (parameter_count + extra_value_count) * kPointerSize), |
| 2796 | Immediate(kAlignmentZapValue)); |
| 2797 | __ Assert(equal, "expected alignment marker"); |
| 2798 | } |
| 2799 | __ Ret((parameter_count + extra_value_count) * kPointerSize, ecx); |
| 2800 | } else { |
| 2801 | Register reg = ToRegister(instr->parameter_count()); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 2802 | // The argument count parameter is a smi |
| 2803 | __ SmiUntag(reg); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 2804 | Register return_addr_reg = reg.is(ecx) ? ebx : ecx; |
| 2805 | if (dynamic_frame_alignment && FLAG_debug_code) { |
| 2806 | ASSERT(extra_value_count == 2); |
| 2807 | __ cmp(Operand(esp, reg, times_pointer_size, |
| 2808 | extra_value_count * kPointerSize), |
| 2809 | Immediate(kAlignmentZapValue)); |
| 2810 | __ Assert(equal, "expected alignment marker"); |
| 2811 | } |
| 2812 | |
| 2813 | // emit code to restore stack based on instr->parameter_count() |
| 2814 | __ pop(return_addr_reg); // save return address |
| 2815 | if (dynamic_frame_alignment) { |
| 2816 | __ inc(reg); // 1 more for alignment |
| 2817 | } |
| 2818 | __ shl(reg, kPointerSizeLog2); |
| 2819 | __ add(esp, reg); |
| 2820 | __ jmp(return_addr_reg); |
| 2821 | } |
| 2822 | } |
| 2823 | |
| 2824 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2825 | void LCodeGen::DoReturn(LReturn* instr) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2826 | if (FLAG_trace && info()->IsOptimizing()) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2827 | // Preserve the return value on the stack and rely on the runtime call |
| 2828 | // to return the value in the same register. We're leaving the code |
| 2829 | // managed by the register allocator and tearing down the frame, it's |
| 2830 | // safe to write to the context register. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2831 | __ push(eax); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2832 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2833 | __ CallRuntime(Runtime::kTraceExit, 1); |
| 2834 | } |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2835 | if (info()->saves_caller_doubles() && CpuFeatures::IsSupported(SSE2)) { |
| 2836 | ASSERT(NeedsEagerFrame()); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2837 | CpuFeatureScope scope(masm(), SSE2); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2838 | BitVector* doubles = chunk()->allocated_double_registers(); |
| 2839 | BitVector::Iterator save_iterator(doubles); |
| 2840 | int count = 0; |
| 2841 | while (!save_iterator.Done()) { |
| 2842 | __ movdbl(XMMRegister::FromAllocationIndex(save_iterator.Current()), |
| 2843 | MemOperand(esp, count * kDoubleSize)); |
| 2844 | save_iterator.Advance(); |
| 2845 | count++; |
| 2846 | } |
| 2847 | } |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2848 | if (dynamic_frame_alignment_) { |
| 2849 | // Fetch the state of the dynamic frame alignment. |
| 2850 | __ mov(edx, Operand(ebp, |
| 2851 | JavaScriptFrameConstants::kDynamicAlignmentStateOffset)); |
| 2852 | } |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 2853 | int no_frame_start = -1; |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2854 | if (NeedsEagerFrame()) { |
| 2855 | __ mov(esp, ebp); |
| 2856 | __ pop(ebp); |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 2857 | no_frame_start = masm_->pc_offset(); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2858 | } |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2859 | if (dynamic_frame_alignment_) { |
| 2860 | Label no_padding; |
| 2861 | __ cmp(edx, Immediate(kNoAlignmentPadding)); |
| 2862 | __ j(equal, &no_padding); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 2863 | |
| 2864 | EmitReturn(instr, true); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2865 | __ bind(&no_padding); |
| 2866 | } |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 2867 | |
| 2868 | EmitReturn(instr, false); |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 2869 | if (no_frame_start != -1) { |
| 2870 | info()->AddNoFrameRange(no_frame_start, masm_->pc_offset()); |
| 2871 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2872 | } |
| 2873 | |
| 2874 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2875 | void LCodeGen::DoLoadGlobalCell(LLoadGlobalCell* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2876 | Register result = ToRegister(instr->result()); |
| 2877 | __ mov(result, Operand::Cell(instr->hydrogen()->cell())); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2878 | if (instr->hydrogen()->RequiresHoleCheck()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2879 | __ cmp(result, factory()->the_hole_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2880 | DeoptimizeIf(equal, instr->environment()); |
| 2881 | } |
| 2882 | } |
| 2883 | |
| 2884 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2885 | void LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) { |
| 2886 | ASSERT(ToRegister(instr->context()).is(esi)); |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 2887 | ASSERT(ToRegister(instr->global_object()).is(edx)); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2888 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 2889 | |
| 2890 | __ mov(ecx, instr->name()); |
| 2891 | RelocInfo::Mode mode = instr->for_typeof() ? RelocInfo::CODE_TARGET : |
| 2892 | RelocInfo::CODE_TARGET_CONTEXT; |
| 2893 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2894 | CallCode(ic, mode, instr); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2895 | } |
| 2896 | |
| 2897 | |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 2898 | void LCodeGen::DoStoreGlobalCell(LStoreGlobalCell* instr) { |
danno@chromium.org | e78f9fc | 2011-12-21 08:29:34 +0000 | [diff] [blame] | 2899 | Register value = ToRegister(instr->value()); |
| 2900 | Handle<JSGlobalPropertyCell> cell_handle = instr->hydrogen()->cell(); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2901 | |
| 2902 | // If the cell we are storing to contains the hole it could have |
| 2903 | // been deleted from the property dictionary. In that case, we need |
| 2904 | // to update the property details in the property dictionary to mark |
| 2905 | // it as no longer deleted. We deoptimize in that case. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2906 | if (instr->hydrogen()->RequiresHoleCheck()) { |
danno@chromium.org | e78f9fc | 2011-12-21 08:29:34 +0000 | [diff] [blame] | 2907 | __ cmp(Operand::Cell(cell_handle), factory()->the_hole_value()); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2908 | DeoptimizeIf(equal, instr->environment()); |
| 2909 | } |
| 2910 | |
| 2911 | // Store the value. |
danno@chromium.org | e78f9fc | 2011-12-21 08:29:34 +0000 | [diff] [blame] | 2912 | __ mov(Operand::Cell(cell_handle), value); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2913 | // Cells are always rescanned, so no write barrier here. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2914 | } |
| 2915 | |
| 2916 | |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 2917 | void LCodeGen::DoStoreGlobalGeneric(LStoreGlobalGeneric* instr) { |
| 2918 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 2919 | ASSERT(ToRegister(instr->global_object()).is(edx)); |
| 2920 | ASSERT(ToRegister(instr->value()).is(eax)); |
| 2921 | |
| 2922 | __ mov(ecx, instr->name()); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2923 | Handle<Code> ic = (instr->strict_mode_flag() == kStrictMode) |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2924 | ? isolate()->builtins()->StoreIC_Initialize_Strict() |
| 2925 | : isolate()->builtins()->StoreIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2926 | CallCode(ic, RelocInfo::CODE_TARGET_CONTEXT, instr); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 2927 | } |
| 2928 | |
| 2929 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2930 | void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) { |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2931 | Register context = ToRegister(instr->context()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2932 | Register result = ToRegister(instr->result()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2933 | __ mov(result, ContextOperand(context, instr->slot_index())); |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 2934 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2935 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 2936 | __ cmp(result, factory()->the_hole_value()); |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 2937 | if (instr->hydrogen()->DeoptimizesOnHole()) { |
| 2938 | DeoptimizeIf(equal, instr->environment()); |
| 2939 | } else { |
| 2940 | Label is_not_hole; |
| 2941 | __ j(not_equal, &is_not_hole, Label::kNear); |
| 2942 | __ mov(result, factory()->undefined_value()); |
| 2943 | __ bind(&is_not_hole); |
| 2944 | } |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2945 | } |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2946 | } |
| 2947 | |
| 2948 | |
| 2949 | void LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) { |
| 2950 | Register context = ToRegister(instr->context()); |
| 2951 | Register value = ToRegister(instr->value()); |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 2952 | |
| 2953 | Label skip_assignment; |
| 2954 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2955 | Operand target = ContextOperand(context, instr->slot_index()); |
| 2956 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 2957 | __ cmp(target, factory()->the_hole_value()); |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 2958 | if (instr->hydrogen()->DeoptimizesOnHole()) { |
| 2959 | DeoptimizeIf(equal, instr->environment()); |
| 2960 | } else { |
| 2961 | __ j(not_equal, &skip_assignment, Label::kNear); |
| 2962 | } |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2963 | } |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 2964 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2965 | __ mov(target, value); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2966 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
| 2967 | HType type = instr->hydrogen()->value()->type(); |
| 2968 | SmiCheck check_needed = |
| 2969 | type.IsHeapObject() ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 2970 | Register temp = ToRegister(instr->temp()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2971 | int offset = Context::SlotOffset(instr->slot_index()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2972 | __ RecordWriteContextSlot(context, |
| 2973 | offset, |
| 2974 | value, |
| 2975 | temp, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2976 | GetSaveFPRegsMode(), |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2977 | EMIT_REMEMBERED_SET, |
| 2978 | check_needed); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2979 | } |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 2980 | |
| 2981 | __ bind(&skip_assignment); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2982 | } |
| 2983 | |
| 2984 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2985 | void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) { |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 2986 | HObjectAccess access = instr->hydrogen()->access(); |
| 2987 | int offset = access.offset(); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2988 | Register object = ToRegister(instr->object()); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 2989 | if (FLAG_track_double_fields && |
| 2990 | instr->hydrogen()->representation().IsDouble()) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 2991 | if (CpuFeatures::IsSupported(SSE2)) { |
| 2992 | CpuFeatureScope scope(masm(), SSE2); |
| 2993 | XMMRegister result = ToDoubleRegister(instr->result()); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 2994 | __ movdbl(result, FieldOperand(object, offset)); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 2995 | } else { |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 2996 | PushX87DoubleOperand(FieldOperand(object, offset)); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 2997 | CurrentInstructionReturnsX87Result(); |
| 2998 | } |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 2999 | return; |
| 3000 | } |
| 3001 | |
| 3002 | Register result = ToRegister(instr->result()); |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 3003 | if (access.IsInobject()) { |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3004 | __ mov(result, FieldOperand(object, offset)); |
| 3005 | } else { |
| 3006 | __ mov(result, FieldOperand(object, JSObject::kPropertiesOffset)); |
| 3007 | __ mov(result, FieldOperand(result, offset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3008 | } |
| 3009 | } |
| 3010 | |
| 3011 | |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 3012 | void LCodeGen::EmitLoadFieldOrConstantFunction(Register result, |
| 3013 | Register object, |
| 3014 | Handle<Map> type, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3015 | Handle<String> name, |
| 3016 | LEnvironment* env) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3017 | LookupResult lookup(isolate()); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 3018 | type->LookupDescriptor(NULL, *name, &lookup); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3019 | ASSERT(lookup.IsFound() || lookup.IsCacheable()); |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 3020 | if (lookup.IsField()) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 3021 | int index = lookup.GetLocalFieldIndexFromMap(*type); |
| 3022 | int offset = index * kPointerSize; |
| 3023 | if (index < 0) { |
| 3024 | // Negative property indices are in-object properties, indexed |
| 3025 | // from the end of the fixed part of the object. |
| 3026 | __ mov(result, FieldOperand(object, offset + type->instance_size())); |
| 3027 | } else { |
| 3028 | // Non-negative property indices are in the properties array. |
| 3029 | __ mov(result, FieldOperand(object, JSObject::kPropertiesOffset)); |
| 3030 | __ mov(result, FieldOperand(result, offset + FixedArray::kHeaderSize)); |
| 3031 | } |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 3032 | } else if (lookup.IsConstantFunction()) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 3033 | Handle<JSFunction> function(lookup.GetConstantFunctionFromMap(*type)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3034 | __ LoadHeapObject(result, function); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3035 | } else { |
| 3036 | // Negative lookup. |
| 3037 | // Check prototypes. |
yangguo@chromium.org | d2899aa | 2012-06-21 11:16:20 +0000 | [diff] [blame] | 3038 | Handle<HeapObject> current(HeapObject::cast((*type)->prototype())); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3039 | Heap* heap = type->GetHeap(); |
yangguo@chromium.org | d2899aa | 2012-06-21 11:16:20 +0000 | [diff] [blame] | 3040 | while (*current != heap->null_value()) { |
| 3041 | __ LoadHeapObject(result, current); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3042 | __ cmp(FieldOperand(result, HeapObject::kMapOffset), |
yangguo@chromium.org | d2899aa | 2012-06-21 11:16:20 +0000 | [diff] [blame] | 3043 | Handle<Map>(current->map())); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3044 | DeoptimizeIf(not_equal, env); |
yangguo@chromium.org | d2899aa | 2012-06-21 11:16:20 +0000 | [diff] [blame] | 3045 | current = |
| 3046 | Handle<HeapObject>(HeapObject::cast(current->map()->prototype())); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3047 | } |
| 3048 | __ mov(result, factory()->undefined_value()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3049 | } |
| 3050 | } |
| 3051 | |
| 3052 | |
| 3053 | void LCodeGen::EmitPushTaggedOperand(LOperand* operand) { |
| 3054 | ASSERT(!operand->IsDoubleRegister()); |
| 3055 | if (operand->IsConstantOperand()) { |
| 3056 | Handle<Object> object = ToHandle(LConstantOperand::cast(operand)); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 3057 | AllowDeferredHandleDereference smi_check; |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3058 | if (object->IsSmi()) { |
| 3059 | __ Push(Handle<Smi>::cast(object)); |
| 3060 | } else { |
| 3061 | __ PushHeapObject(Handle<HeapObject>::cast(object)); |
| 3062 | } |
| 3063 | } else if (operand->IsRegister()) { |
| 3064 | __ push(ToRegister(operand)); |
| 3065 | } else { |
| 3066 | __ push(ToOperand(operand)); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3067 | } |
| 3068 | } |
| 3069 | |
| 3070 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3071 | // Check for cases where EmitLoadFieldOrConstantFunction needs to walk the |
| 3072 | // prototype chain, which causes unbounded code generation. |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 3073 | static bool CompactEmit(SmallMapList* list, |
| 3074 | Handle<String> name, |
| 3075 | int i, |
| 3076 | Isolate* isolate) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3077 | Handle<Map> map = list->at(i); |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 3078 | // If the map has ElementsKind transitions, we will generate map checks |
| 3079 | // for each kind in __ CompareMap(..., ALLOW_ELEMENTS_TRANSITION_MAPS). |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 3080 | if (map->HasElementsTransition()) return false; |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 3081 | LookupResult lookup(isolate); |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 3082 | map->LookupDescriptor(NULL, *name, &lookup); |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 3083 | return lookup.IsField() || lookup.IsConstantFunction(); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3084 | } |
| 3085 | |
| 3086 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3087 | void LCodeGen::DoLoadNamedFieldPolymorphic(LLoadNamedFieldPolymorphic* instr) { |
| 3088 | Register object = ToRegister(instr->object()); |
| 3089 | Register result = ToRegister(instr->result()); |
| 3090 | |
| 3091 | int map_count = instr->hydrogen()->types()->length(); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 3092 | bool need_generic = instr->hydrogen()->need_generic(); |
| 3093 | |
| 3094 | if (map_count == 0 && !need_generic) { |
| 3095 | DeoptimizeIf(no_condition, instr->environment()); |
| 3096 | return; |
| 3097 | } |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3098 | Handle<String> name = instr->hydrogen()->name(); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 3099 | Label done; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3100 | bool all_are_compact = true; |
| 3101 | for (int i = 0; i < map_count; ++i) { |
| 3102 | if (!CompactEmit(instr->hydrogen()->types(), name, i, isolate())) { |
| 3103 | all_are_compact = false; |
| 3104 | break; |
| 3105 | } |
| 3106 | } |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 3107 | for (int i = 0; i < map_count; ++i) { |
| 3108 | bool last = (i == map_count - 1); |
| 3109 | Handle<Map> map = instr->hydrogen()->types()->at(i); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3110 | Label check_passed; |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 3111 | __ CompareMap(object, map, &check_passed); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 3112 | if (last && !need_generic) { |
| 3113 | DeoptimizeIf(not_equal, instr->environment()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3114 | __ bind(&check_passed); |
| 3115 | EmitLoadFieldOrConstantFunction( |
| 3116 | result, object, map, name, instr->environment()); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 3117 | } else { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3118 | Label next; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3119 | bool compact = all_are_compact ? true : |
| 3120 | CompactEmit(instr->hydrogen()->types(), name, i, isolate()); |
| 3121 | __ j(not_equal, &next, compact ? Label::kNear : Label::kFar); |
| 3122 | __ bind(&check_passed); |
| 3123 | EmitLoadFieldOrConstantFunction( |
| 3124 | result, object, map, name, instr->environment()); |
| 3125 | __ jmp(&done, all_are_compact ? Label::kNear : Label::kFar); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3126 | __ bind(&next); |
| 3127 | } |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3128 | } |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 3129 | if (need_generic) { |
| 3130 | __ mov(ecx, name); |
| 3131 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
| 3132 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
| 3133 | } |
| 3134 | __ bind(&done); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3135 | } |
| 3136 | |
| 3137 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3138 | void LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3139 | ASSERT(ToRegister(instr->context()).is(esi)); |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 3140 | ASSERT(ToRegister(instr->object()).is(edx)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3141 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 3142 | |
| 3143 | __ mov(ecx, instr->name()); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3144 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3145 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3146 | } |
| 3147 | |
| 3148 | |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3149 | void LCodeGen::DoLoadFunctionPrototype(LLoadFunctionPrototype* instr) { |
| 3150 | Register function = ToRegister(instr->function()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 3151 | Register temp = ToRegister(instr->temp()); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3152 | Register result = ToRegister(instr->result()); |
| 3153 | |
| 3154 | // Check that the function really is a function. |
| 3155 | __ CmpObjectType(function, JS_FUNCTION_TYPE, result); |
| 3156 | DeoptimizeIf(not_equal, instr->environment()); |
| 3157 | |
| 3158 | // Check whether the function has an instance prototype. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3159 | Label non_instance; |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3160 | __ test_b(FieldOperand(result, Map::kBitFieldOffset), |
| 3161 | 1 << Map::kHasNonInstancePrototype); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3162 | __ j(not_zero, &non_instance, Label::kNear); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3163 | |
| 3164 | // Get the prototype or initial map from the function. |
| 3165 | __ mov(result, |
| 3166 | FieldOperand(function, JSFunction::kPrototypeOrInitialMapOffset)); |
| 3167 | |
| 3168 | // Check that the function has a prototype or an initial map. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3169 | __ cmp(Operand(result), Immediate(factory()->the_hole_value())); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3170 | DeoptimizeIf(equal, instr->environment()); |
| 3171 | |
| 3172 | // If the function does not have an initial map, we're done. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3173 | Label done; |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3174 | __ CmpObjectType(result, MAP_TYPE, temp); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3175 | __ j(not_equal, &done, Label::kNear); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3176 | |
| 3177 | // Get the prototype from the initial map. |
| 3178 | __ mov(result, FieldOperand(result, Map::kPrototypeOffset)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3179 | __ jmp(&done, Label::kNear); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3180 | |
| 3181 | // Non-instance prototype: Fetch prototype from constructor field |
| 3182 | // in the function's map. |
| 3183 | __ bind(&non_instance); |
| 3184 | __ mov(result, FieldOperand(result, Map::kConstructorOffset)); |
| 3185 | |
| 3186 | // All done. |
| 3187 | __ bind(&done); |
| 3188 | } |
| 3189 | |
| 3190 | |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3191 | void LCodeGen::DoLoadExternalArrayPointer( |
| 3192 | LLoadExternalArrayPointer* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3193 | Register result = ToRegister(instr->result()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 3194 | Register input = ToRegister(instr->object()); |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3195 | __ mov(result, FieldOperand(input, |
| 3196 | ExternalArray::kExternalPointerOffset)); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3197 | } |
| 3198 | |
| 3199 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3200 | void LCodeGen::DoAccessArgumentsAt(LAccessArgumentsAt* instr) { |
| 3201 | Register arguments = ToRegister(instr->arguments()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3202 | Register result = ToRegister(instr->result()); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3203 | if (instr->length()->IsConstantOperand() && |
| 3204 | instr->index()->IsConstantOperand()) { |
| 3205 | int const_index = ToInteger32(LConstantOperand::cast(instr->index())); |
| 3206 | int const_length = ToInteger32(LConstantOperand::cast(instr->length())); |
| 3207 | int index = (const_length - const_index) + 1; |
| 3208 | __ mov(result, Operand(arguments, index * kPointerSize)); |
| 3209 | } else { |
| 3210 | Register length = ToRegister(instr->length()); |
| 3211 | Operand index = ToOperand(instr->index()); |
| 3212 | // There are two words between the frame pointer and the last argument. |
| 3213 | // Subtracting from length accounts for one of them add one more. |
| 3214 | __ sub(length, index); |
| 3215 | __ mov(result, Operand(arguments, length, times_4, kPointerSize)); |
| 3216 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3217 | } |
| 3218 | |
| 3219 | |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3220 | void LCodeGen::DoLoadKeyedExternalArray(LLoadKeyed* instr) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3221 | ElementsKind elements_kind = instr->elements_kind(); |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 3222 | LOperand* key = instr->key(); |
| 3223 | if (!key->IsConstantOperand() && |
| 3224 | ExternalArrayOpRequiresTemp(instr->hydrogen()->key()->representation(), |
| 3225 | elements_kind)) { |
| 3226 | __ SmiUntag(ToRegister(key)); |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 3227 | } |
| 3228 | Operand operand(BuildFastArrayOperand( |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3229 | instr->elements(), |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 3230 | key, |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 3231 | instr->hydrogen()->key()->representation(), |
| 3232 | elements_kind, |
| 3233 | 0, |
| 3234 | instr->additional_index())); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3235 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3236 | if (CpuFeatures::IsSupported(SSE2)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3237 | CpuFeatureScope scope(masm(), SSE2); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3238 | XMMRegister result(ToDoubleRegister(instr->result())); |
| 3239 | __ movss(result, operand); |
| 3240 | __ cvtss2sd(result, result); |
| 3241 | } else { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3242 | PushX87FloatOperand(operand); |
| 3243 | CurrentInstructionReturnsX87Result(); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3244 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3245 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3246 | if (CpuFeatures::IsSupported(SSE2)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3247 | CpuFeatureScope scope(masm(), SSE2); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3248 | __ movdbl(ToDoubleRegister(instr->result()), operand); |
| 3249 | } else { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3250 | PushX87DoubleOperand(operand); |
| 3251 | CurrentInstructionReturnsX87Result(); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3252 | } |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3253 | } else { |
| 3254 | Register result(ToRegister(instr->result())); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3255 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3256 | case EXTERNAL_BYTE_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3257 | __ movsx_b(result, operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3258 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3259 | case EXTERNAL_PIXEL_ELEMENTS: |
| 3260 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3261 | __ movzx_b(result, operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3262 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3263 | case EXTERNAL_SHORT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3264 | __ movsx_w(result, operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3265 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3266 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3267 | __ movzx_w(result, operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3268 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3269 | case EXTERNAL_INT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3270 | __ mov(result, operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3271 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3272 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3273 | __ mov(result, operand); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 3274 | if (!instr->hydrogen()->CheckFlag(HInstruction::kUint32)) { |
| 3275 | __ test(result, Operand(result)); |
| 3276 | DeoptimizeIf(negative, instr->environment()); |
| 3277 | } |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3278 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3279 | case EXTERNAL_FLOAT_ELEMENTS: |
| 3280 | case EXTERNAL_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3281 | case FAST_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3282 | case FAST_ELEMENTS: |
| 3283 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3284 | case FAST_HOLEY_SMI_ELEMENTS: |
| 3285 | case FAST_HOLEY_ELEMENTS: |
| 3286 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3287 | case DICTIONARY_ELEMENTS: |
| 3288 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3289 | UNREACHABLE(); |
| 3290 | break; |
| 3291 | } |
| 3292 | } |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3293 | } |
| 3294 | |
| 3295 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3296 | void LCodeGen::DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr) { |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3297 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 3298 | int offset = FixedDoubleArray::kHeaderSize - kHeapObjectTag + |
| 3299 | sizeof(kHoleNanLower32); |
| 3300 | Operand hole_check_operand = BuildFastArrayOperand( |
| 3301 | instr->elements(), instr->key(), |
| 3302 | instr->hydrogen()->key()->representation(), |
| 3303 | FAST_DOUBLE_ELEMENTS, |
| 3304 | offset, |
| 3305 | instr->additional_index()); |
| 3306 | __ cmp(hole_check_operand, Immediate(kHoleNanUpper32)); |
| 3307 | DeoptimizeIf(equal, instr->environment()); |
| 3308 | } |
| 3309 | |
| 3310 | Operand double_load_operand = BuildFastArrayOperand( |
| 3311 | instr->elements(), |
| 3312 | instr->key(), |
| 3313 | instr->hydrogen()->key()->representation(), |
| 3314 | FAST_DOUBLE_ELEMENTS, |
| 3315 | FixedDoubleArray::kHeaderSize - kHeapObjectTag, |
| 3316 | instr->additional_index()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3317 | if (CpuFeatures::IsSupported(SSE2)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3318 | CpuFeatureScope scope(masm(), SSE2); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3319 | XMMRegister result = ToDoubleRegister(instr->result()); |
| 3320 | __ movdbl(result, double_load_operand); |
| 3321 | } else { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3322 | PushX87DoubleOperand(double_load_operand); |
| 3323 | CurrentInstructionReturnsX87Result(); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3324 | } |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3325 | } |
| 3326 | |
| 3327 | |
| 3328 | void LCodeGen::DoLoadKeyedFixedArray(LLoadKeyed* instr) { |
| 3329 | Register result = ToRegister(instr->result()); |
| 3330 | |
| 3331 | // Load the result. |
| 3332 | __ mov(result, |
| 3333 | BuildFastArrayOperand(instr->elements(), |
| 3334 | instr->key(), |
| 3335 | instr->hydrogen()->key()->representation(), |
| 3336 | FAST_ELEMENTS, |
| 3337 | FixedArray::kHeaderSize - kHeapObjectTag, |
| 3338 | instr->additional_index())); |
| 3339 | |
| 3340 | // Check for the hole value. |
| 3341 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 3342 | if (IsFastSmiElementsKind(instr->hydrogen()->elements_kind())) { |
| 3343 | __ test(result, Immediate(kSmiTagMask)); |
| 3344 | DeoptimizeIf(not_equal, instr->environment()); |
| 3345 | } else { |
| 3346 | __ cmp(result, factory()->the_hole_value()); |
| 3347 | DeoptimizeIf(equal, instr->environment()); |
| 3348 | } |
| 3349 | } |
| 3350 | } |
| 3351 | |
| 3352 | |
| 3353 | void LCodeGen::DoLoadKeyed(LLoadKeyed* instr) { |
| 3354 | if (instr->is_external()) { |
| 3355 | DoLoadKeyedExternalArray(instr); |
| 3356 | } else if (instr->hydrogen()->representation().IsDouble()) { |
| 3357 | DoLoadKeyedFixedDoubleArray(instr); |
| 3358 | } else { |
| 3359 | DoLoadKeyedFixedArray(instr); |
| 3360 | } |
| 3361 | } |
| 3362 | |
| 3363 | |
| 3364 | Operand LCodeGen::BuildFastArrayOperand( |
| 3365 | LOperand* elements_pointer, |
| 3366 | LOperand* key, |
| 3367 | Representation key_representation, |
| 3368 | ElementsKind elements_kind, |
| 3369 | uint32_t offset, |
| 3370 | uint32_t additional_index) { |
| 3371 | Register elements_pointer_reg = ToRegister(elements_pointer); |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 3372 | int element_shift_size = ElementsKindToShiftSize(elements_kind); |
| 3373 | int shift_size = element_shift_size; |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3374 | if (key->IsConstantOperand()) { |
| 3375 | int constant_value = ToInteger32(LConstantOperand::cast(key)); |
| 3376 | if (constant_value & 0xF0000000) { |
| 3377 | Abort("array index constant value too big"); |
| 3378 | } |
| 3379 | return Operand(elements_pointer_reg, |
| 3380 | ((constant_value + additional_index) << shift_size) |
| 3381 | + offset); |
| 3382 | } else { |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 3383 | // Take the tag bit into account while computing the shift size. |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 3384 | if (key_representation.IsSmi() && (shift_size >= 1)) { |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 3385 | shift_size -= kSmiTagSize; |
| 3386 | } |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3387 | ScaleFactor scale_factor = static_cast<ScaleFactor>(shift_size); |
| 3388 | return Operand(elements_pointer_reg, |
| 3389 | ToRegister(key), |
| 3390 | scale_factor, |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 3391 | offset + (additional_index << element_shift_size)); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3392 | } |
| 3393 | } |
| 3394 | |
| 3395 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3396 | void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3397 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3398 | ASSERT(ToRegister(instr->object()).is(edx)); |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 3399 | ASSERT(ToRegister(instr->key()).is(ecx)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3400 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3401 | Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3402 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3403 | } |
| 3404 | |
| 3405 | |
| 3406 | void LCodeGen::DoArgumentsElements(LArgumentsElements* instr) { |
| 3407 | Register result = ToRegister(instr->result()); |
| 3408 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3409 | if (instr->hydrogen()->from_inlined()) { |
| 3410 | __ lea(result, Operand(esp, -2 * kPointerSize)); |
| 3411 | } else { |
| 3412 | // Check for arguments adapter frame. |
| 3413 | Label done, adapted; |
| 3414 | __ mov(result, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
| 3415 | __ mov(result, Operand(result, StandardFrameConstants::kContextOffset)); |
| 3416 | __ cmp(Operand(result), |
| 3417 | Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 3418 | __ j(equal, &adapted, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3419 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3420 | // No arguments adaptor frame. |
| 3421 | __ mov(result, Operand(ebp)); |
| 3422 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3423 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3424 | // Arguments adaptor frame present. |
| 3425 | __ bind(&adapted); |
| 3426 | __ mov(result, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3427 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3428 | // Result is the frame pointer for the frame if not adapted and for the real |
| 3429 | // frame below the adaptor frame if adapted. |
| 3430 | __ bind(&done); |
| 3431 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3432 | } |
| 3433 | |
| 3434 | |
| 3435 | void LCodeGen::DoArgumentsLength(LArgumentsLength* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 3436 | Operand elem = ToOperand(instr->elements()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3437 | Register result = ToRegister(instr->result()); |
| 3438 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3439 | Label done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3440 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 3441 | // If no arguments adaptor frame the number of arguments is fixed. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3442 | __ cmp(ebp, elem); |
| 3443 | __ mov(result, Immediate(scope()->num_parameters())); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3444 | __ j(equal, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3445 | |
| 3446 | // Arguments adaptor frame present. Get argument length from there. |
| 3447 | __ mov(result, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
| 3448 | __ mov(result, Operand(result, |
| 3449 | ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 3450 | __ SmiUntag(result); |
| 3451 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 3452 | // Argument length is in result register. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3453 | __ bind(&done); |
| 3454 | } |
| 3455 | |
| 3456 | |
yangguo@chromium.org | 154ff99 | 2012-03-13 08:09:54 +0000 | [diff] [blame] | 3457 | void LCodeGen::DoWrapReceiver(LWrapReceiver* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3458 | Register receiver = ToRegister(instr->receiver()); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3459 | Register function = ToRegister(instr->function()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 3460 | Register scratch = ToRegister(instr->temp()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3461 | |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3462 | // If the receiver is null or undefined, we have to pass the global |
| 3463 | // object as a receiver to normal functions. Values have to be |
| 3464 | // passed unchanged to builtins and strict-mode functions. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3465 | Label global_object, receiver_ok; |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3466 | |
| 3467 | // Do not transform the receiver to object for strict mode |
| 3468 | // functions. |
| 3469 | __ mov(scratch, |
| 3470 | FieldOperand(function, JSFunction::kSharedFunctionInfoOffset)); |
| 3471 | __ test_b(FieldOperand(scratch, SharedFunctionInfo::kStrictModeByteOffset), |
| 3472 | 1 << SharedFunctionInfo::kStrictModeBitWithinByte); |
danno@chromium.org | 412fa51 | 2012-09-14 13:28:26 +0000 | [diff] [blame] | 3473 | __ j(not_equal, &receiver_ok); // A near jump is not sufficient here! |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3474 | |
| 3475 | // Do not transform the receiver to object for builtins. |
| 3476 | __ test_b(FieldOperand(scratch, SharedFunctionInfo::kNativeByteOffset), |
| 3477 | 1 << SharedFunctionInfo::kNativeBitWithinByte); |
danno@chromium.org | 412fa51 | 2012-09-14 13:28:26 +0000 | [diff] [blame] | 3478 | __ j(not_equal, &receiver_ok); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3479 | |
| 3480 | // Normal function. Replace undefined or null with global receiver. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3481 | __ cmp(receiver, factory()->null_value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3482 | __ j(equal, &global_object, Label::kNear); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3483 | __ cmp(receiver, factory()->undefined_value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3484 | __ j(equal, &global_object, Label::kNear); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3485 | |
| 3486 | // The receiver should be a JS object. |
| 3487 | __ test(receiver, Immediate(kSmiTagMask)); |
| 3488 | DeoptimizeIf(equal, instr->environment()); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3489 | __ CmpObjectType(receiver, FIRST_SPEC_OBJECT_TYPE, scratch); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3490 | DeoptimizeIf(below, instr->environment()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3491 | __ jmp(&receiver_ok, Label::kNear); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3492 | |
| 3493 | __ bind(&global_object); |
| 3494 | // TODO(kmillikin): We have a hydrogen value for the global object. See |
| 3495 | // if it's better to use it than to explicitly fetch it from the context |
| 3496 | // here. |
| 3497 | __ mov(receiver, Operand(ebp, StandardFrameConstants::kContextOffset)); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 3498 | __ mov(receiver, ContextOperand(receiver, Context::GLOBAL_OBJECT_INDEX)); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3499 | __ mov(receiver, |
| 3500 | FieldOperand(receiver, JSGlobalObject::kGlobalReceiverOffset)); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3501 | __ bind(&receiver_ok); |
yangguo@chromium.org | 154ff99 | 2012-03-13 08:09:54 +0000 | [diff] [blame] | 3502 | } |
| 3503 | |
| 3504 | |
| 3505 | void LCodeGen::DoApplyArguments(LApplyArguments* instr) { |
| 3506 | Register receiver = ToRegister(instr->receiver()); |
| 3507 | Register function = ToRegister(instr->function()); |
| 3508 | Register length = ToRegister(instr->length()); |
| 3509 | Register elements = ToRegister(instr->elements()); |
| 3510 | ASSERT(receiver.is(eax)); // Used for parameter count. |
| 3511 | ASSERT(function.is(edi)); // Required by InvokeFunction. |
| 3512 | ASSERT(ToRegister(instr->result()).is(eax)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3513 | |
| 3514 | // Copy the arguments to this function possibly from the |
| 3515 | // adaptor frame below it. |
| 3516 | const uint32_t kArgumentsLimit = 1 * KB; |
| 3517 | __ cmp(length, kArgumentsLimit); |
| 3518 | DeoptimizeIf(above, instr->environment()); |
| 3519 | |
| 3520 | __ push(receiver); |
| 3521 | __ mov(receiver, length); |
| 3522 | |
| 3523 | // Loop through the arguments pushing them onto the execution |
| 3524 | // stack. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3525 | Label invoke, loop; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3526 | // length is a small non-negative integer, due to the test above. |
| 3527 | __ test(length, Operand(length)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3528 | __ j(zero, &invoke, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3529 | __ bind(&loop); |
| 3530 | __ push(Operand(elements, length, times_pointer_size, 1 * kPointerSize)); |
| 3531 | __ dec(length); |
| 3532 | __ j(not_zero, &loop); |
| 3533 | |
| 3534 | // Invoke the function. |
| 3535 | __ bind(&invoke); |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 3536 | ASSERT(instr->HasPointerMap()); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 3537 | LPointerMap* pointers = instr->pointer_map(); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 3538 | RecordPosition(pointers->position()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 3539 | SafepointGenerator safepoint_generator( |
| 3540 | this, pointers, Safepoint::kLazyDeopt); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 3541 | ParameterCount actual(eax); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3542 | __ InvokeFunction(function, actual, CALL_FUNCTION, |
| 3543 | safepoint_generator, CALL_AS_METHOD); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3544 | } |
| 3545 | |
| 3546 | |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 3547 | void LCodeGen::DoDebugBreak(LDebugBreak* instr) { |
| 3548 | __ int3(); |
| 3549 | } |
| 3550 | |
| 3551 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3552 | void LCodeGen::DoPushArgument(LPushArgument* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 3553 | LOperand* argument = instr->value(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3554 | EmitPushTaggedOperand(argument); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3555 | } |
| 3556 | |
| 3557 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3558 | void LCodeGen::DoDrop(LDrop* instr) { |
| 3559 | __ Drop(instr->count()); |
| 3560 | } |
| 3561 | |
| 3562 | |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3563 | void LCodeGen::DoThisFunction(LThisFunction* instr) { |
| 3564 | Register result = ToRegister(instr->result()); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 3565 | __ mov(result, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3566 | } |
| 3567 | |
| 3568 | |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3569 | void LCodeGen::DoContext(LContext* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3570 | Register result = ToRegister(instr->result()); |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 3571 | if (info()->IsOptimizing()) { |
| 3572 | __ mov(result, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 3573 | } else { |
| 3574 | // If there is no frame, the context must be in esi. |
| 3575 | ASSERT(result.is(esi)); |
| 3576 | } |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3577 | } |
| 3578 | |
| 3579 | |
| 3580 | void LCodeGen::DoOuterContext(LOuterContext* instr) { |
| 3581 | Register context = ToRegister(instr->context()); |
| 3582 | Register result = ToRegister(instr->result()); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3583 | __ mov(result, |
| 3584 | Operand(context, Context::SlotOffset(Context::PREVIOUS_INDEX))); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3585 | } |
| 3586 | |
| 3587 | |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3588 | void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 3589 | ASSERT(ToRegister(instr->context()).is(esi)); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3590 | __ push(esi); // The context is the first argument. |
| 3591 | __ push(Immediate(instr->hydrogen()->pairs())); |
| 3592 | __ push(Immediate(Smi::FromInt(instr->hydrogen()->flags()))); |
| 3593 | CallRuntime(Runtime::kDeclareGlobals, 3, instr); |
| 3594 | } |
| 3595 | |
| 3596 | |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3597 | void LCodeGen::DoGlobalObject(LGlobalObject* instr) { |
| 3598 | Register context = ToRegister(instr->context()); |
| 3599 | Register result = ToRegister(instr->result()); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 3600 | __ mov(result, |
| 3601 | Operand(context, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3602 | } |
| 3603 | |
| 3604 | |
| 3605 | void LCodeGen::DoGlobalReceiver(LGlobalReceiver* instr) { |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3606 | Register global = ToRegister(instr->global()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3607 | Register result = ToRegister(instr->result()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3608 | __ mov(result, FieldOperand(global, GlobalObject::kGlobalReceiverOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3609 | } |
| 3610 | |
| 3611 | |
| 3612 | void LCodeGen::CallKnownFunction(Handle<JSFunction> function, |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3613 | int formal_parameter_count, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3614 | int arity, |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3615 | LInstruction* instr, |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 3616 | CallKind call_kind, |
| 3617 | EDIState edi_state) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3618 | bool dont_adapt_arguments = |
| 3619 | formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel; |
| 3620 | bool can_invoke_directly = |
| 3621 | dont_adapt_arguments || formal_parameter_count == arity; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3622 | |
| 3623 | LPointerMap* pointers = instr->pointer_map(); |
| 3624 | RecordPosition(pointers->position()); |
| 3625 | |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3626 | if (can_invoke_directly) { |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 3627 | if (edi_state == EDI_UNINITIALIZED) { |
| 3628 | __ LoadHeapObject(edi, function); |
| 3629 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3630 | |
verwaest@chromium.org | b6d052d | 2012-07-27 08:03:27 +0000 | [diff] [blame] | 3631 | // Change context. |
| 3632 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3633 | |
| 3634 | // Set eax to arguments count if adaption is not needed. Assumes that eax |
| 3635 | // is available to write to at this point. |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3636 | if (dont_adapt_arguments) { |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3637 | __ mov(eax, arity); |
| 3638 | } |
| 3639 | |
| 3640 | // Invoke function directly. |
| 3641 | __ SetCallKind(ecx, call_kind); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3642 | if (function.is_identical_to(info()->closure())) { |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3643 | __ CallSelf(); |
| 3644 | } else { |
| 3645 | __ call(FieldOperand(edi, JSFunction::kCodeEntryOffset)); |
| 3646 | } |
| 3647 | RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); |
| 3648 | } else { |
| 3649 | // We need to adapt arguments. |
| 3650 | SafepointGenerator generator( |
| 3651 | this, pointers, Safepoint::kLazyDeopt); |
| 3652 | ParameterCount count(arity); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3653 | ParameterCount expected(formal_parameter_count); |
| 3654 | __ InvokeFunction( |
| 3655 | function, expected, count, CALL_FUNCTION, generator, call_kind); |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3656 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3657 | } |
| 3658 | |
| 3659 | |
| 3660 | void LCodeGen::DoCallConstantFunction(LCallConstantFunction* instr) { |
| 3661 | ASSERT(ToRegister(instr->result()).is(eax)); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3662 | CallKnownFunction(instr->hydrogen()->function(), |
| 3663 | instr->hydrogen()->formal_parameter_count(), |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3664 | instr->arity(), |
| 3665 | instr, |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 3666 | CALL_AS_METHOD, |
| 3667 | EDI_UNINITIALIZED); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3668 | } |
| 3669 | |
| 3670 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3671 | void LCodeGen::DoDeferredMathAbsTaggedHeapNumber(LMathAbs* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3672 | Register input_reg = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3673 | __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3674 | factory()->heap_number_map()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3675 | DeoptimizeIf(not_equal, instr->environment()); |
| 3676 | |
| 3677 | Label done; |
| 3678 | Register tmp = input_reg.is(eax) ? ecx : eax; |
| 3679 | Register tmp2 = tmp.is(ecx) ? edx : input_reg.is(ecx) ? edx : ecx; |
| 3680 | |
| 3681 | // Preserve the value of all registers. |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3682 | PushSafepointRegistersScope scope(this); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3683 | |
| 3684 | Label negative; |
| 3685 | __ mov(tmp, FieldOperand(input_reg, HeapNumber::kExponentOffset)); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3686 | // Check the sign of the argument. If the argument is positive, just |
| 3687 | // return it. We do not need to patch the stack since |input| and |
| 3688 | // |result| are the same register and |input| will be restored |
| 3689 | // unchanged by popping safepoint registers. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3690 | __ test(tmp, Immediate(HeapNumber::kSignMask)); |
| 3691 | __ j(not_zero, &negative); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3692 | __ jmp(&done); |
| 3693 | |
| 3694 | __ bind(&negative); |
| 3695 | |
| 3696 | Label allocated, slow; |
| 3697 | __ AllocateHeapNumber(tmp, tmp2, no_reg, &slow); |
| 3698 | __ jmp(&allocated); |
| 3699 | |
| 3700 | // Slow case: Call the runtime system to do the number allocation. |
| 3701 | __ bind(&slow); |
| 3702 | |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3703 | CallRuntimeFromDeferred(Runtime::kAllocateHeapNumber, 0, |
| 3704 | instr, instr->context()); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3705 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3706 | // Set the pointer to the new heap number in tmp. |
| 3707 | if (!tmp.is(eax)) __ mov(tmp, eax); |
| 3708 | |
| 3709 | // Restore input_reg after call to runtime. |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3710 | __ LoadFromSafepointRegisterSlot(input_reg, input_reg); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3711 | |
| 3712 | __ bind(&allocated); |
| 3713 | __ mov(tmp2, FieldOperand(input_reg, HeapNumber::kExponentOffset)); |
| 3714 | __ and_(tmp2, ~HeapNumber::kSignMask); |
| 3715 | __ mov(FieldOperand(tmp, HeapNumber::kExponentOffset), tmp2); |
| 3716 | __ mov(tmp2, FieldOperand(input_reg, HeapNumber::kMantissaOffset)); |
| 3717 | __ mov(FieldOperand(tmp, HeapNumber::kMantissaOffset), tmp2); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3718 | __ StoreToSafepointRegisterSlot(input_reg, tmp); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3719 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3720 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3721 | } |
| 3722 | |
| 3723 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3724 | void LCodeGen::EmitIntegerMathAbs(LMathAbs* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3725 | Register input_reg = ToRegister(instr->value()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3726 | __ test(input_reg, Operand(input_reg)); |
| 3727 | Label is_positive; |
| 3728 | __ j(not_sign, &is_positive); |
| 3729 | __ neg(input_reg); |
| 3730 | __ test(input_reg, Operand(input_reg)); |
| 3731 | DeoptimizeIf(negative, instr->environment()); |
| 3732 | __ bind(&is_positive); |
| 3733 | } |
| 3734 | |
| 3735 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3736 | void LCodeGen::DoMathAbs(LMathAbs* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3737 | // Class for deferred case. |
| 3738 | class DeferredMathAbsTaggedHeapNumber: public LDeferredCode { |
| 3739 | public: |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3740 | DeferredMathAbsTaggedHeapNumber(LCodeGen* codegen, LMathAbs* instr) |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3741 | : LDeferredCode(codegen), instr_(instr) { } |
| 3742 | virtual void Generate() { |
| 3743 | codegen()->DoDeferredMathAbsTaggedHeapNumber(instr_); |
| 3744 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3745 | virtual LInstruction* instr() { return instr_; } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3746 | private: |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3747 | LMathAbs* instr_; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3748 | }; |
| 3749 | |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3750 | ASSERT(instr->value()->Equals(instr->result())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3751 | Representation r = instr->hydrogen()->value()->representation(); |
| 3752 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3753 | CpuFeatureScope scope(masm(), SSE2); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3754 | if (r.IsDouble()) { |
| 3755 | XMMRegister scratch = xmm0; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3756 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 3757 | __ xorps(scratch, scratch); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3758 | __ subsd(scratch, input_reg); |
| 3759 | __ pand(input_reg, scratch); |
| 3760 | } else if (r.IsInteger32()) { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3761 | EmitIntegerMathAbs(instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3762 | } else { // Tagged case. |
| 3763 | DeferredMathAbsTaggedHeapNumber* deferred = |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3764 | new(zone()) DeferredMathAbsTaggedHeapNumber(this, instr); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3765 | Register input_reg = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3766 | // Smi check. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 3767 | __ JumpIfNotSmi(input_reg, deferred->entry()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3768 | EmitIntegerMathAbs(instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3769 | __ bind(deferred->exit()); |
| 3770 | } |
| 3771 | } |
| 3772 | |
| 3773 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3774 | void LCodeGen::DoMathFloor(LMathFloor* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3775 | CpuFeatureScope scope(masm(), SSE2); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3776 | XMMRegister xmm_scratch = xmm0; |
| 3777 | Register output_reg = ToRegister(instr->result()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3778 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3779 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3780 | if (CpuFeatures::IsSupported(SSE4_1)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3781 | CpuFeatureScope scope(masm(), SSE4_1); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3782 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 3783 | // Deoptimize on negative zero. |
| 3784 | Label non_zero; |
| 3785 | __ xorps(xmm_scratch, xmm_scratch); // Zero the register. |
| 3786 | __ ucomisd(input_reg, xmm_scratch); |
| 3787 | __ j(not_equal, &non_zero, Label::kNear); |
| 3788 | __ movmskpd(output_reg, input_reg); |
| 3789 | __ test(output_reg, Immediate(1)); |
| 3790 | DeoptimizeIf(not_zero, instr->environment()); |
| 3791 | __ bind(&non_zero); |
| 3792 | } |
| 3793 | __ roundsd(xmm_scratch, input_reg, Assembler::kRoundDown); |
| 3794 | __ cvttsd2si(output_reg, Operand(xmm_scratch)); |
| 3795 | // Overflow is signalled with minint. |
| 3796 | __ cmp(output_reg, 0x80000000u); |
| 3797 | DeoptimizeIf(equal, instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3798 | } else { |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3799 | Label negative_sign, done; |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 3800 | // Deoptimize on unordered. |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3801 | __ xorps(xmm_scratch, xmm_scratch); // Zero the register. |
| 3802 | __ ucomisd(input_reg, xmm_scratch); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 3803 | DeoptimizeIf(parity_even, instr->environment()); |
| 3804 | __ j(below, &negative_sign, Label::kNear); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3805 | |
| 3806 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 3807 | // Check for negative zero. |
| 3808 | Label positive_sign; |
| 3809 | __ j(above, &positive_sign, Label::kNear); |
| 3810 | __ movmskpd(output_reg, input_reg); |
| 3811 | __ test(output_reg, Immediate(1)); |
| 3812 | DeoptimizeIf(not_zero, instr->environment()); |
| 3813 | __ Set(output_reg, Immediate(0)); |
| 3814 | __ jmp(&done, Label::kNear); |
| 3815 | __ bind(&positive_sign); |
| 3816 | } |
| 3817 | |
| 3818 | // Use truncating instruction (OK because input is positive). |
| 3819 | __ cvttsd2si(output_reg, Operand(input_reg)); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3820 | // Overflow is signalled with minint. |
| 3821 | __ cmp(output_reg, 0x80000000u); |
| 3822 | DeoptimizeIf(equal, instr->environment()); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 3823 | __ jmp(&done, Label::kNear); |
| 3824 | |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3825 | // Non-zero negative reaches here. |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 3826 | __ bind(&negative_sign); |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3827 | // Truncate, then compare and compensate. |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 3828 | __ cvttsd2si(output_reg, Operand(input_reg)); |
| 3829 | __ cvtsi2sd(xmm_scratch, output_reg); |
| 3830 | __ ucomisd(input_reg, xmm_scratch); |
| 3831 | __ j(equal, &done, Label::kNear); |
| 3832 | __ sub(output_reg, Immediate(1)); |
| 3833 | DeoptimizeIf(overflow, instr->environment()); |
| 3834 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3835 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3836 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3837 | } |
| 3838 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3839 | void LCodeGen::DoMathRound(LMathRound* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3840 | CpuFeatureScope scope(masm(), SSE2); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3841 | Register output_reg = ToRegister(instr->result()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3842 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3843 | XMMRegister xmm_scratch = xmm0; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3844 | XMMRegister input_temp = ToDoubleRegister(instr->temp()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3845 | ExternalReference one_half = ExternalReference::address_of_one_half(); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3846 | ExternalReference minus_one_half = |
| 3847 | ExternalReference::address_of_minus_one_half(); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3848 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3849 | Label done, round_to_zero, below_one_half, do_not_compensate; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3850 | __ movdbl(xmm_scratch, Operand::StaticVariable(one_half)); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3851 | __ ucomisd(xmm_scratch, input_reg); |
| 3852 | __ j(above, &below_one_half); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3853 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3854 | // CVTTSD2SI rounds towards zero, since 0.5 <= x, we use floor(0.5 + x). |
| 3855 | __ addsd(xmm_scratch, input_reg); |
| 3856 | __ cvttsd2si(output_reg, Operand(xmm_scratch)); |
| 3857 | // Overflow is signalled with minint. |
| 3858 | __ cmp(output_reg, 0x80000000u); |
| 3859 | __ RecordComment("D2I conversion overflow"); |
| 3860 | DeoptimizeIf(equal, instr->environment()); |
| 3861 | __ jmp(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3862 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3863 | __ bind(&below_one_half); |
| 3864 | __ movdbl(xmm_scratch, Operand::StaticVariable(minus_one_half)); |
| 3865 | __ ucomisd(xmm_scratch, input_reg); |
| 3866 | __ j(below_equal, &round_to_zero); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3867 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3868 | // CVTTSD2SI rounds towards zero, we use ceil(x - (-0.5)) and then |
| 3869 | // compare and compensate. |
| 3870 | __ movsd(input_temp, input_reg); // Do not alter input_reg. |
| 3871 | __ subsd(input_temp, xmm_scratch); |
| 3872 | __ cvttsd2si(output_reg, Operand(input_temp)); |
| 3873 | // Catch minint due to overflow, and to prevent overflow when compensating. |
| 3874 | __ cmp(output_reg, 0x80000000u); |
| 3875 | __ RecordComment("D2I conversion overflow"); |
| 3876 | DeoptimizeIf(equal, instr->environment()); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3877 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3878 | __ cvtsi2sd(xmm_scratch, output_reg); |
| 3879 | __ ucomisd(xmm_scratch, input_temp); |
| 3880 | __ j(equal, &done); |
| 3881 | __ sub(output_reg, Immediate(1)); |
| 3882 | // No overflow because we already ruled out minint. |
| 3883 | __ jmp(&done); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3884 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3885 | __ bind(&round_to_zero); |
| 3886 | // We return 0 for the input range [+0, 0.5[, or [-0.5, 0.5[ if |
| 3887 | // we can ignore the difference between a result of -0 and +0. |
| 3888 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 3889 | // If the sign is positive, we return +0. |
| 3890 | __ movmskpd(output_reg, input_reg); |
| 3891 | __ test(output_reg, Immediate(1)); |
| 3892 | __ RecordComment("Minus zero"); |
| 3893 | DeoptimizeIf(not_zero, instr->environment()); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 3894 | } |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3895 | __ Set(output_reg, Immediate(0)); |
| 3896 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3897 | } |
| 3898 | |
| 3899 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3900 | void LCodeGen::DoMathSqrt(LMathSqrt* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3901 | CpuFeatureScope scope(masm(), SSE2); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3902 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3903 | ASSERT(ToDoubleRegister(instr->result()).is(input_reg)); |
| 3904 | __ sqrtsd(input_reg, input_reg); |
| 3905 | } |
| 3906 | |
| 3907 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3908 | void LCodeGen::DoMathPowHalf(LMathPowHalf* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3909 | CpuFeatureScope scope(masm(), SSE2); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3910 | XMMRegister xmm_scratch = xmm0; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3911 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3912 | Register scratch = ToRegister(instr->temp()); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3913 | ASSERT(ToDoubleRegister(instr->result()).is(input_reg)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3914 | |
| 3915 | // Note that according to ECMA-262 15.8.2.13: |
| 3916 | // Math.pow(-Infinity, 0.5) == Infinity |
| 3917 | // Math.sqrt(-Infinity) == NaN |
| 3918 | Label done, sqrt; |
| 3919 | // Check base for -Infinity. According to IEEE-754, single-precision |
| 3920 | // -Infinity has the highest 9 bits set and the lowest 23 bits cleared. |
| 3921 | __ mov(scratch, 0xFF800000); |
| 3922 | __ movd(xmm_scratch, scratch); |
| 3923 | __ cvtss2sd(xmm_scratch, xmm_scratch); |
| 3924 | __ ucomisd(input_reg, xmm_scratch); |
| 3925 | // Comparing -Infinity with NaN results in "unordered", which sets the |
| 3926 | // zero flag as if both were equal. However, it also sets the carry flag. |
| 3927 | __ j(not_equal, &sqrt, Label::kNear); |
| 3928 | __ j(carry, &sqrt, Label::kNear); |
| 3929 | // If input is -Infinity, return Infinity. |
| 3930 | __ xorps(input_reg, input_reg); |
| 3931 | __ subsd(input_reg, xmm_scratch); |
| 3932 | __ jmp(&done, Label::kNear); |
| 3933 | |
| 3934 | // Square root. |
| 3935 | __ bind(&sqrt); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 3936 | __ xorps(xmm_scratch, xmm_scratch); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 3937 | __ addsd(input_reg, xmm_scratch); // Convert -0 to +0. |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3938 | __ sqrtsd(input_reg, input_reg); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3939 | __ bind(&done); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3940 | } |
| 3941 | |
| 3942 | |
| 3943 | void LCodeGen::DoPower(LPower* instr) { |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3944 | Representation exponent_type = instr->hydrogen()->right()->representation(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3945 | // Having marked this as a call, we can use any registers. |
| 3946 | // Just make sure that the input/output registers are the expected ones. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 3947 | ASSERT(!instr->right()->IsDoubleRegister() || |
| 3948 | ToDoubleRegister(instr->right()).is(xmm1)); |
| 3949 | ASSERT(!instr->right()->IsRegister() || |
| 3950 | ToRegister(instr->right()).is(eax)); |
| 3951 | ASSERT(ToDoubleRegister(instr->left()).is(xmm2)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3952 | ASSERT(ToDoubleRegister(instr->result()).is(xmm3)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3953 | |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 3954 | if (exponent_type.IsSmi()) { |
| 3955 | MathPowStub stub(MathPowStub::TAGGED); |
| 3956 | __ CallStub(&stub); |
| 3957 | } else if (exponent_type.IsTagged()) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3958 | Label no_deopt; |
| 3959 | __ JumpIfSmi(eax, &no_deopt); |
| 3960 | __ CmpObjectType(eax, HEAP_NUMBER_TYPE, ecx); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3961 | DeoptimizeIf(not_equal, instr->environment()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3962 | __ bind(&no_deopt); |
| 3963 | MathPowStub stub(MathPowStub::TAGGED); |
| 3964 | __ CallStub(&stub); |
| 3965 | } else if (exponent_type.IsInteger32()) { |
| 3966 | MathPowStub stub(MathPowStub::INTEGER); |
| 3967 | __ CallStub(&stub); |
| 3968 | } else { |
| 3969 | ASSERT(exponent_type.IsDouble()); |
| 3970 | MathPowStub stub(MathPowStub::DOUBLE); |
| 3971 | __ CallStub(&stub); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3972 | } |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3973 | } |
| 3974 | |
| 3975 | |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 3976 | void LCodeGen::DoRandom(LRandom* instr) { |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3977 | class DeferredDoRandom: public LDeferredCode { |
| 3978 | public: |
| 3979 | DeferredDoRandom(LCodeGen* codegen, LRandom* instr) |
| 3980 | : LDeferredCode(codegen), instr_(instr) { } |
| 3981 | virtual void Generate() { codegen()->DoDeferredRandom(instr_); } |
| 3982 | virtual LInstruction* instr() { return instr_; } |
| 3983 | private: |
| 3984 | LRandom* instr_; |
| 3985 | }; |
| 3986 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3987 | DeferredDoRandom* deferred = new(zone()) DeferredDoRandom(this, instr); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3988 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3989 | CpuFeatureScope scope(masm(), SSE2); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 3990 | // Having marked this instruction as a call we can use any |
| 3991 | // registers. |
| 3992 | ASSERT(ToDoubleRegister(instr->result()).is(xmm1)); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 3993 | ASSERT(ToRegister(instr->global_object()).is(eax)); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3994 | // Assert that the register size is indeed the size of each seed. |
| 3995 | static const int kSeedSize = sizeof(uint32_t); |
| 3996 | STATIC_ASSERT(kPointerSize == kSeedSize); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 3997 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 3998 | __ mov(eax, FieldOperand(eax, GlobalObject::kNativeContextOffset)); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3999 | static const int kRandomSeedOffset = |
| 4000 | FixedArray::kHeaderSize + Context::RANDOM_SEED_INDEX * kPointerSize; |
| 4001 | __ mov(ebx, FieldOperand(eax, kRandomSeedOffset)); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4002 | // ebx: FixedArray of the native context's random seeds |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 4003 | |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 4004 | // Load state[0]. |
| 4005 | __ mov(ecx, FieldOperand(ebx, ByteArray::kHeaderSize)); |
| 4006 | // If state[0] == 0, call runtime to initialize seeds. |
| 4007 | __ test(ecx, ecx); |
| 4008 | __ j(zero, deferred->entry()); |
| 4009 | // Load state[1]. |
| 4010 | __ mov(eax, FieldOperand(ebx, ByteArray::kHeaderSize + kSeedSize)); |
| 4011 | // ecx: state[0] |
| 4012 | // eax: state[1] |
| 4013 | |
| 4014 | // state[0] = 18273 * (state[0] & 0xFFFF) + (state[0] >> 16) |
| 4015 | __ movzx_w(edx, ecx); |
| 4016 | __ imul(edx, edx, 18273); |
| 4017 | __ shr(ecx, 16); |
| 4018 | __ add(ecx, edx); |
| 4019 | // Save state[0]. |
| 4020 | __ mov(FieldOperand(ebx, ByteArray::kHeaderSize), ecx); |
| 4021 | |
| 4022 | // state[1] = 36969 * (state[1] & 0xFFFF) + (state[1] >> 16) |
| 4023 | __ movzx_w(edx, eax); |
| 4024 | __ imul(edx, edx, 36969); |
| 4025 | __ shr(eax, 16); |
| 4026 | __ add(eax, edx); |
| 4027 | // Save state[1]. |
| 4028 | __ mov(FieldOperand(ebx, ByteArray::kHeaderSize + kSeedSize), eax); |
| 4029 | |
| 4030 | // Random bit pattern = (state[0] << 14) + (state[1] & 0x3FFFF) |
| 4031 | __ shl(ecx, 14); |
| 4032 | __ and_(eax, Immediate(0x3FFFF)); |
| 4033 | __ add(eax, ecx); |
| 4034 | |
| 4035 | __ bind(deferred->exit()); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 4036 | // Convert 32 random bits in eax to 0.(32 random bits) in a double |
| 4037 | // by computing: |
| 4038 | // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)). |
| 4039 | __ mov(ebx, Immediate(0x49800000)); // 1.0 x 2^20 as single. |
| 4040 | __ movd(xmm2, ebx); |
| 4041 | __ movd(xmm1, eax); |
| 4042 | __ cvtss2sd(xmm2, xmm2); |
| 4043 | __ xorps(xmm1, xmm2); |
| 4044 | __ subsd(xmm1, xmm2); |
| 4045 | } |
| 4046 | |
| 4047 | |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 4048 | void LCodeGen::DoDeferredRandom(LRandom* instr) { |
| 4049 | __ PrepareCallCFunction(1, ebx); |
| 4050 | __ mov(Operand(esp, 0), eax); |
| 4051 | __ CallCFunction(ExternalReference::random_uint32_function(isolate()), 1); |
| 4052 | // Return value is in eax. |
| 4053 | } |
| 4054 | |
| 4055 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4056 | void LCodeGen::DoMathLog(LMathLog* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4057 | CpuFeatureScope scope(masm(), SSE2); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4058 | ASSERT(instr->value()->Equals(instr->result())); |
| 4059 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4060 | Label positive, done, zero; |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 4061 | __ xorps(xmm0, xmm0); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 4062 | __ ucomisd(input_reg, xmm0); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4063 | __ j(above, &positive, Label::kNear); |
| 4064 | __ j(equal, &zero, Label::kNear); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 4065 | ExternalReference nan = |
| 4066 | ExternalReference::address_of_canonical_non_hole_nan(); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 4067 | __ movdbl(input_reg, Operand::StaticVariable(nan)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4068 | __ jmp(&done, Label::kNear); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 4069 | __ bind(&zero); |
| 4070 | __ push(Immediate(0xFFF00000)); |
| 4071 | __ push(Immediate(0)); |
| 4072 | __ movdbl(input_reg, Operand(esp, 0)); |
| 4073 | __ add(Operand(esp), Immediate(kDoubleSize)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4074 | __ jmp(&done, Label::kNear); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 4075 | __ bind(&positive); |
| 4076 | __ fldln2(); |
| 4077 | __ sub(Operand(esp), Immediate(kDoubleSize)); |
| 4078 | __ movdbl(Operand(esp, 0), input_reg); |
| 4079 | __ fld_d(Operand(esp, 0)); |
| 4080 | __ fyl2x(); |
| 4081 | __ fstp_d(Operand(esp, 0)); |
| 4082 | __ movdbl(input_reg, Operand(esp, 0)); |
| 4083 | __ add(Operand(esp), Immediate(kDoubleSize)); |
| 4084 | __ bind(&done); |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 4085 | } |
| 4086 | |
| 4087 | |
danno@chromium.org | 1f34ad3 | 2012-11-26 14:53:56 +0000 | [diff] [blame] | 4088 | void LCodeGen::DoMathExp(LMathExp* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4089 | CpuFeatureScope scope(masm(), SSE2); |
danno@chromium.org | 1f34ad3 | 2012-11-26 14:53:56 +0000 | [diff] [blame] | 4090 | XMMRegister input = ToDoubleRegister(instr->value()); |
| 4091 | XMMRegister result = ToDoubleRegister(instr->result()); |
| 4092 | Register temp1 = ToRegister(instr->temp1()); |
| 4093 | Register temp2 = ToRegister(instr->temp2()); |
| 4094 | |
| 4095 | MathExpGenerator::EmitMathExp(masm(), input, result, xmm0, temp1, temp2); |
| 4096 | } |
| 4097 | |
| 4098 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4099 | void LCodeGen::DoMathTan(LMathTan* instr) { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4100 | ASSERT(ToDoubleRegister(instr->result()).is(xmm1)); |
| 4101 | TranscendentalCacheStub stub(TranscendentalCache::TAN, |
| 4102 | TranscendentalCacheStub::UNTAGGED); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4103 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4104 | } |
| 4105 | |
| 4106 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4107 | void LCodeGen::DoMathCos(LMathCos* instr) { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 4108 | ASSERT(ToDoubleRegister(instr->result()).is(xmm1)); |
| 4109 | TranscendentalCacheStub stub(TranscendentalCache::COS, |
| 4110 | TranscendentalCacheStub::UNTAGGED); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4111 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 4112 | } |
| 4113 | |
| 4114 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4115 | void LCodeGen::DoMathSin(LMathSin* instr) { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 4116 | ASSERT(ToDoubleRegister(instr->result()).is(xmm1)); |
| 4117 | TranscendentalCacheStub stub(TranscendentalCache::SIN, |
| 4118 | TranscendentalCacheStub::UNTAGGED); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4119 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 4120 | } |
| 4121 | |
| 4122 | |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 4123 | void LCodeGen::DoInvokeFunction(LInvokeFunction* instr) { |
| 4124 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 4125 | ASSERT(ToRegister(instr->function()).is(edi)); |
| 4126 | ASSERT(instr->HasPointerMap()); |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 4127 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 4128 | Handle<JSFunction> known_function = instr->hydrogen()->known_function(); |
| 4129 | if (known_function.is_null()) { |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 4130 | LPointerMap* pointers = instr->pointer_map(); |
| 4131 | RecordPosition(pointers->position()); |
| 4132 | SafepointGenerator generator( |
| 4133 | this, pointers, Safepoint::kLazyDeopt); |
| 4134 | ParameterCount count(instr->arity()); |
| 4135 | __ InvokeFunction(edi, count, CALL_FUNCTION, generator, CALL_AS_METHOD); |
| 4136 | } else { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 4137 | CallKnownFunction(known_function, |
| 4138 | instr->hydrogen()->formal_parameter_count(), |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 4139 | instr->arity(), |
| 4140 | instr, |
| 4141 | CALL_AS_METHOD, |
| 4142 | EDI_CONTAINS_TARGET); |
| 4143 | } |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 4144 | } |
| 4145 | |
| 4146 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4147 | void LCodeGen::DoCallKeyed(LCallKeyed* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 4148 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 4149 | ASSERT(ToRegister(instr->key()).is(ecx)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4150 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 4151 | |
| 4152 | int arity = instr->arity(); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 4153 | Handle<Code> ic = |
| 4154 | isolate()->stub_cache()->ComputeKeyedCallInitialize(arity); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4155 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4156 | } |
| 4157 | |
| 4158 | |
| 4159 | void LCodeGen::DoCallNamed(LCallNamed* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 4160 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4161 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 4162 | |
| 4163 | int arity = instr->arity(); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4164 | RelocInfo::Mode mode = RelocInfo::CODE_TARGET; |
| 4165 | Handle<Code> ic = |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 4166 | isolate()->stub_cache()->ComputeCallInitialize(arity, mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4167 | __ mov(ecx, instr->name()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4168 | CallCode(ic, mode, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4169 | } |
| 4170 | |
| 4171 | |
| 4172 | void LCodeGen::DoCallFunction(LCallFunction* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 4173 | ASSERT(ToRegister(instr->context()).is(esi)); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 4174 | ASSERT(ToRegister(instr->function()).is(edi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4175 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 4176 | |
| 4177 | int arity = instr->arity(); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4178 | CallFunctionStub stub(arity, NO_CALL_FUNCTION_FLAGS); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4179 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4180 | } |
| 4181 | |
| 4182 | |
| 4183 | void LCodeGen::DoCallGlobal(LCallGlobal* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 4184 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4185 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 4186 | |
| 4187 | int arity = instr->arity(); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4188 | RelocInfo::Mode mode = RelocInfo::CODE_TARGET_CONTEXT; |
| 4189 | Handle<Code> ic = |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 4190 | isolate()->stub_cache()->ComputeCallInitialize(arity, mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4191 | __ mov(ecx, instr->name()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4192 | CallCode(ic, mode, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4193 | } |
| 4194 | |
| 4195 | |
| 4196 | void LCodeGen::DoCallKnownGlobal(LCallKnownGlobal* instr) { |
| 4197 | ASSERT(ToRegister(instr->result()).is(eax)); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 4198 | CallKnownFunction(instr->hydrogen()->target(), |
| 4199 | instr->hydrogen()->formal_parameter_count(), |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 4200 | instr->arity(), |
| 4201 | instr, |
| 4202 | CALL_AS_FUNCTION, |
| 4203 | EDI_UNINITIALIZED); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4204 | } |
| 4205 | |
| 4206 | |
| 4207 | void LCodeGen::DoCallNew(LCallNew* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 4208 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 4209 | ASSERT(ToRegister(instr->constructor()).is(edi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4210 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 4211 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4212 | if (FLAG_optimize_constructed_arrays) { |
| 4213 | // No cell in ebx for construct type feedback in optimized code |
| 4214 | Handle<Object> undefined_value(isolate()->heap()->undefined_value(), |
| 4215 | isolate()); |
| 4216 | __ mov(ebx, Immediate(undefined_value)); |
| 4217 | } |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4218 | CallConstructStub stub(NO_CALL_FUNCTION_FLAGS); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4219 | __ Set(eax, Immediate(instr->arity())); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4220 | CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4221 | } |
| 4222 | |
| 4223 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4224 | void LCodeGen::DoCallNewArray(LCallNewArray* instr) { |
| 4225 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 4226 | ASSERT(ToRegister(instr->constructor()).is(edi)); |
| 4227 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 4228 | ASSERT(FLAG_optimize_constructed_arrays); |
| 4229 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4230 | __ Set(eax, Immediate(instr->arity())); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 4231 | __ mov(ebx, instr->hydrogen()->property_cell()); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4232 | ElementsKind kind = instr->hydrogen()->elements_kind(); |
verwaest@chromium.org | d4be0f0 | 2013-06-05 13:39:03 +0000 | [diff] [blame] | 4233 | bool disable_allocation_sites = |
| 4234 | (AllocationSiteInfo::GetMode(kind) == TRACK_ALLOCATION_SITE); |
| 4235 | |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 4236 | if (instr->arity() == 0) { |
verwaest@chromium.org | d4be0f0 | 2013-06-05 13:39:03 +0000 | [diff] [blame] | 4237 | ArrayNoArgumentConstructorStub stub(kind, disable_allocation_sites); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 4238 | CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); |
| 4239 | } else if (instr->arity() == 1) { |
verwaest@chromium.org | d4be0f0 | 2013-06-05 13:39:03 +0000 | [diff] [blame] | 4240 | ArraySingleArgumentConstructorStub stub(kind, disable_allocation_sites); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 4241 | CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); |
| 4242 | } else { |
verwaest@chromium.org | d4be0f0 | 2013-06-05 13:39:03 +0000 | [diff] [blame] | 4243 | ArrayNArgumentsConstructorStub stub(kind, disable_allocation_sites); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 4244 | CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); |
| 4245 | } |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4246 | } |
| 4247 | |
| 4248 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4249 | void LCodeGen::DoCallRuntime(LCallRuntime* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4250 | CallRuntime(instr->function(), instr->arity(), instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4251 | } |
| 4252 | |
| 4253 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 4254 | void LCodeGen::DoInnerAllocatedObject(LInnerAllocatedObject* instr) { |
| 4255 | Register result = ToRegister(instr->result()); |
| 4256 | Register base = ToRegister(instr->base_object()); |
| 4257 | __ lea(result, Operand(base, instr->offset())); |
| 4258 | } |
| 4259 | |
| 4260 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4261 | void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4262 | Representation representation = instr->representation(); |
| 4263 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4264 | Register object = ToRegister(instr->object()); |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 4265 | HObjectAccess access = instr->hydrogen()->access(); |
| 4266 | int offset = access.offset(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4267 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4268 | Handle<Map> transition = instr->transition(); |
| 4269 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4270 | if (FLAG_track_fields && representation.IsSmi()) { |
| 4271 | if (instr->value()->IsConstantOperand()) { |
| 4272 | LConstantOperand* operand_value = LConstantOperand::cast(instr->value()); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 4273 | if (!IsSmi(operand_value)) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4274 | DeoptimizeIf(no_condition, instr->environment()); |
| 4275 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4276 | } |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 4277 | } else if (FLAG_track_heap_object_fields && representation.IsHeapObject()) { |
| 4278 | if (instr->value()->IsConstantOperand()) { |
| 4279 | LConstantOperand* operand_value = LConstantOperand::cast(instr->value()); |
| 4280 | if (IsInteger32(operand_value)) { |
| 4281 | DeoptimizeIf(no_condition, instr->environment()); |
| 4282 | } |
| 4283 | } else { |
| 4284 | if (!instr->hydrogen()->value()->type().IsHeapObject()) { |
| 4285 | Register value = ToRegister(instr->value()); |
| 4286 | __ test(value, Immediate(kSmiTagMask)); |
| 4287 | DeoptimizeIf(zero, instr->environment()); |
| 4288 | } |
| 4289 | } |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4290 | } else if (FLAG_track_double_fields && representation.IsDouble()) { |
| 4291 | ASSERT(transition.is_null()); |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 4292 | ASSERT(access.IsInobject()); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4293 | ASSERT(!instr->hydrogen()->NeedsWriteBarrier()); |
| 4294 | if (CpuFeatures::IsSupported(SSE2)) { |
| 4295 | CpuFeatureScope scope(masm(), SSE2); |
| 4296 | XMMRegister value = ToDoubleRegister(instr->value()); |
| 4297 | __ movdbl(FieldOperand(object, offset), value); |
| 4298 | } else { |
| 4299 | __ fstp_d(FieldOperand(object, offset)); |
| 4300 | } |
| 4301 | return; |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4302 | } |
| 4303 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4304 | if (!transition.is_null()) { |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 4305 | if (!instr->hydrogen()->NeedsWriteBarrierForMap()) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4306 | __ mov(FieldOperand(object, HeapObject::kMapOffset), transition); |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 4307 | } else { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 4308 | Register temp = ToRegister(instr->temp()); |
| 4309 | Register temp_map = ToRegister(instr->temp_map()); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4310 | __ mov(temp_map, transition); |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 4311 | __ mov(FieldOperand(object, HeapObject::kMapOffset), temp_map); |
| 4312 | // Update the write barrier for the map field. |
| 4313 | __ RecordWriteField(object, |
| 4314 | HeapObject::kMapOffset, |
| 4315 | temp_map, |
| 4316 | temp, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4317 | GetSaveFPRegsMode(), |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 4318 | OMIT_REMEMBERED_SET, |
| 4319 | OMIT_SMI_CHECK); |
| 4320 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4321 | } |
| 4322 | |
| 4323 | // Do the store. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4324 | HType type = instr->hydrogen()->value()->type(); |
| 4325 | SmiCheck check_needed = |
| 4326 | type.IsHeapObject() ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 4327 | |
| 4328 | Register write_register = object; |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 4329 | if (!access.IsInobject()) { |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 4330 | write_register = ToRegister(instr->temp()); |
| 4331 | __ mov(write_register, |
| 4332 | FieldOperand(object, JSObject::kPropertiesOffset)); |
| 4333 | } |
| 4334 | |
| 4335 | if (instr->value()->IsConstantOperand()) { |
| 4336 | LConstantOperand* operand_value = LConstantOperand::cast(instr->value()); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 4337 | if (operand_value->IsRegister()) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 4338 | __ mov(FieldOperand(write_register, offset), ToRegister(operand_value)); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 4339 | } else { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 4340 | Handle<Object> handle_value = ToHandle(operand_value); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4341 | ASSERT(!instr->hydrogen()->NeedsWriteBarrier()); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 4342 | __ mov(FieldOperand(write_register, offset), handle_value); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4343 | } |
| 4344 | } else { |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 4345 | __ mov(FieldOperand(write_register, offset), ToRegister(instr->value())); |
| 4346 | } |
| 4347 | |
| 4348 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
| 4349 | Register value = ToRegister(instr->value()); |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 4350 | Register temp = access.IsInobject() ? ToRegister(instr->temp()) : object; |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 4351 | // Update the write barrier for the object for in-object properties. |
| 4352 | __ RecordWriteField(write_register, |
| 4353 | offset, |
| 4354 | value, |
| 4355 | temp, |
| 4356 | GetSaveFPRegsMode(), |
| 4357 | EMIT_REMEMBERED_SET, |
| 4358 | check_needed); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4359 | } |
| 4360 | } |
| 4361 | |
| 4362 | |
| 4363 | void LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 4364 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4365 | ASSERT(ToRegister(instr->object()).is(edx)); |
| 4366 | ASSERT(ToRegister(instr->value()).is(eax)); |
| 4367 | |
| 4368 | __ mov(ecx, instr->name()); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4369 | Handle<Code> ic = (instr->strict_mode_flag() == kStrictMode) |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 4370 | ? isolate()->builtins()->StoreIC_Initialize_Strict() |
| 4371 | : isolate()->builtins()->StoreIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4372 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4373 | } |
| 4374 | |
| 4375 | |
| 4376 | void LCodeGen::DoBoundsCheck(LBoundsCheck* instr) { |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 4377 | if (instr->hydrogen()->skip_check()) return; |
| 4378 | |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 4379 | if (instr->index()->IsConstantOperand()) { |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 4380 | int constant_index = |
| 4381 | ToInteger32(LConstantOperand::cast(instr->index())); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 4382 | if (instr->hydrogen()->length()->representation().IsSmi()) { |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 4383 | __ cmp(ToOperand(instr->length()), |
| 4384 | Immediate(Smi::FromInt(constant_index))); |
| 4385 | } else { |
| 4386 | __ cmp(ToOperand(instr->length()), Immediate(constant_index)); |
| 4387 | } |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 4388 | DeoptimizeIf(below_equal, instr->environment()); |
| 4389 | } else { |
| 4390 | __ cmp(ToRegister(instr->index()), ToOperand(instr->length())); |
| 4391 | DeoptimizeIf(above_equal, instr->environment()); |
| 4392 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4393 | } |
| 4394 | |
| 4395 | |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4396 | void LCodeGen::DoStoreKeyedExternalArray(LStoreKeyed* instr) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4397 | ElementsKind elements_kind = instr->elements_kind(); |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 4398 | LOperand* key = instr->key(); |
| 4399 | if (!key->IsConstantOperand() && |
| 4400 | ExternalArrayOpRequiresTemp(instr->hydrogen()->key()->representation(), |
| 4401 | elements_kind)) { |
| 4402 | __ SmiUntag(ToRegister(key)); |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 4403 | } |
| 4404 | Operand operand(BuildFastArrayOperand( |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4405 | instr->elements(), |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 4406 | key, |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 4407 | instr->hydrogen()->key()->representation(), |
| 4408 | elements_kind, |
| 4409 | 0, |
| 4410 | instr->additional_index())); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4411 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4412 | if (CpuFeatures::IsSafeForSnapshot(SSE2)) { |
| 4413 | CpuFeatureScope scope(masm(), SSE2); |
| 4414 | __ cvtsd2ss(xmm0, ToDoubleRegister(instr->value())); |
| 4415 | __ movss(operand, xmm0); |
| 4416 | } else { |
| 4417 | __ fld(0); |
| 4418 | __ fstp_s(operand); |
| 4419 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4420 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4421 | if (CpuFeatures::IsSafeForSnapshot(SSE2)) { |
| 4422 | CpuFeatureScope scope(masm(), SSE2); |
| 4423 | __ movdbl(operand, ToDoubleRegister(instr->value())); |
| 4424 | } else { |
| 4425 | __ fst_d(operand); |
| 4426 | } |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 4427 | } else { |
| 4428 | Register value = ToRegister(instr->value()); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4429 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4430 | case EXTERNAL_PIXEL_ELEMENTS: |
| 4431 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 4432 | case EXTERNAL_BYTE_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4433 | __ mov_b(operand, value); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 4434 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4435 | case EXTERNAL_SHORT_ELEMENTS: |
| 4436 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4437 | __ mov_w(operand, value); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 4438 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4439 | case EXTERNAL_INT_ELEMENTS: |
| 4440 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4441 | __ mov(operand, value); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 4442 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4443 | case EXTERNAL_FLOAT_ELEMENTS: |
| 4444 | case EXTERNAL_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4445 | case FAST_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4446 | case FAST_ELEMENTS: |
| 4447 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4448 | case FAST_HOLEY_SMI_ELEMENTS: |
| 4449 | case FAST_HOLEY_ELEMENTS: |
| 4450 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4451 | case DICTIONARY_ELEMENTS: |
| 4452 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 4453 | UNREACHABLE(); |
| 4454 | break; |
| 4455 | } |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 4456 | } |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 4457 | } |
| 4458 | |
| 4459 | |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4460 | void LCodeGen::DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4461 | ExternalReference canonical_nan_reference = |
| 4462 | ExternalReference::address_of_canonical_non_hole_nan(); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4463 | Operand double_store_operand = BuildFastArrayOperand( |
| 4464 | instr->elements(), |
| 4465 | instr->key(), |
| 4466 | instr->hydrogen()->key()->representation(), |
| 4467 | FAST_DOUBLE_ELEMENTS, |
| 4468 | FixedDoubleArray::kHeaderSize - kHeapObjectTag, |
| 4469 | instr->additional_index()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4470 | |
| 4471 | if (CpuFeatures::IsSafeForSnapshot(SSE2)) { |
| 4472 | CpuFeatureScope scope(masm(), SSE2); |
| 4473 | XMMRegister value = ToDoubleRegister(instr->value()); |
| 4474 | |
| 4475 | if (instr->NeedsCanonicalization()) { |
| 4476 | Label have_value; |
| 4477 | |
| 4478 | __ ucomisd(value, value); |
| 4479 | __ j(parity_odd, &have_value); // NaN. |
| 4480 | |
| 4481 | __ movdbl(value, Operand::StaticVariable(canonical_nan_reference)); |
| 4482 | __ bind(&have_value); |
| 4483 | } |
| 4484 | |
| 4485 | __ movdbl(double_store_operand, value); |
| 4486 | } else { |
| 4487 | // Can't use SSE2 in the serializer |
| 4488 | if (instr->hydrogen()->IsConstantHoleStore()) { |
| 4489 | // This means we should store the (double) hole. No floating point |
| 4490 | // registers required. |
| 4491 | double nan_double = FixedDoubleArray::hole_nan_as_double(); |
| 4492 | uint64_t int_val = BitCast<uint64_t, double>(nan_double); |
| 4493 | int32_t lower = static_cast<int32_t>(int_val); |
| 4494 | int32_t upper = static_cast<int32_t>(int_val >> (kBitsPerInt)); |
| 4495 | |
| 4496 | __ mov(double_store_operand, Immediate(lower)); |
| 4497 | Operand double_store_operand2 = BuildFastArrayOperand( |
| 4498 | instr->elements(), |
| 4499 | instr->key(), |
| 4500 | instr->hydrogen()->key()->representation(), |
| 4501 | FAST_DOUBLE_ELEMENTS, |
| 4502 | FixedDoubleArray::kHeaderSize - kHeapObjectTag + kPointerSize, |
| 4503 | instr->additional_index()); |
| 4504 | __ mov(double_store_operand2, Immediate(upper)); |
| 4505 | } else { |
| 4506 | Label no_special_nan_handling; |
| 4507 | ASSERT(x87_stack_depth_ > 0); |
| 4508 | |
| 4509 | if (instr->NeedsCanonicalization()) { |
| 4510 | __ fld(0); |
| 4511 | __ fld(0); |
| 4512 | __ FCmp(); |
| 4513 | |
| 4514 | __ j(parity_odd, &no_special_nan_handling); |
| 4515 | __ sub(esp, Immediate(kDoubleSize)); |
| 4516 | __ fst_d(MemOperand(esp, 0)); |
| 4517 | __ cmp(MemOperand(esp, sizeof(kHoleNanLower32)), |
| 4518 | Immediate(kHoleNanUpper32)); |
| 4519 | __ add(esp, Immediate(kDoubleSize)); |
| 4520 | Label canonicalize; |
| 4521 | __ j(not_equal, &canonicalize); |
| 4522 | __ jmp(&no_special_nan_handling); |
| 4523 | __ bind(&canonicalize); |
| 4524 | __ fstp(0); |
| 4525 | __ fld_d(Operand::StaticVariable(canonical_nan_reference)); |
| 4526 | } |
| 4527 | |
| 4528 | __ bind(&no_special_nan_handling); |
| 4529 | __ fst_d(double_store_operand); |
| 4530 | } |
| 4531 | } |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4532 | } |
| 4533 | |
| 4534 | |
| 4535 | void LCodeGen::DoStoreKeyedFixedArray(LStoreKeyed* instr) { |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4536 | Register elements = ToRegister(instr->elements()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4537 | Register key = instr->key()->IsRegister() ? ToRegister(instr->key()) : no_reg; |
| 4538 | |
ulan@chromium.org | 0e3f88b | 2012-05-22 09:16:05 +0000 | [diff] [blame] | 4539 | Operand operand = BuildFastArrayOperand( |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4540 | instr->elements(), |
ulan@chromium.org | 0e3f88b | 2012-05-22 09:16:05 +0000 | [diff] [blame] | 4541 | instr->key(), |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 4542 | instr->hydrogen()->key()->representation(), |
ulan@chromium.org | 0e3f88b | 2012-05-22 09:16:05 +0000 | [diff] [blame] | 4543 | FAST_ELEMENTS, |
| 4544 | FixedArray::kHeaderSize - kHeapObjectTag, |
| 4545 | instr->additional_index()); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 4546 | if (instr->value()->IsRegister()) { |
| 4547 | __ mov(operand, ToRegister(instr->value())); |
| 4548 | } else { |
| 4549 | LConstantOperand* operand_value = LConstantOperand::cast(instr->value()); |
| 4550 | if (IsInteger32(operand_value)) { |
| 4551 | Smi* smi_value = Smi::FromInt(ToInteger32(operand_value)); |
| 4552 | __ mov(operand, Immediate(smi_value)); |
| 4553 | } else { |
| 4554 | Handle<Object> handle_value = ToHandle(operand_value); |
| 4555 | __ mov(operand, handle_value); |
| 4556 | } |
| 4557 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4558 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4559 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 4560 | ASSERT(instr->value()->IsRegister()); |
| 4561 | Register value = ToRegister(instr->value()); |
ulan@chromium.org | 0e3f88b | 2012-05-22 09:16:05 +0000 | [diff] [blame] | 4562 | ASSERT(!instr->key()->IsConstantOperand()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4563 | HType type = instr->hydrogen()->value()->type(); |
| 4564 | SmiCheck check_needed = |
| 4565 | type.IsHeapObject() ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4566 | // Compute address of modified element and store it into key register. |
ulan@chromium.org | 0e3f88b | 2012-05-22 09:16:05 +0000 | [diff] [blame] | 4567 | __ lea(key, operand); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4568 | __ RecordWrite(elements, |
| 4569 | key, |
| 4570 | value, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4571 | GetSaveFPRegsMode(), |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4572 | EMIT_REMEMBERED_SET, |
| 4573 | check_needed); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4574 | } |
| 4575 | } |
| 4576 | |
| 4577 | |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4578 | void LCodeGen::DoStoreKeyed(LStoreKeyed* instr) { |
| 4579 | // By cases...external, fast-double, fast |
| 4580 | if (instr->is_external()) { |
| 4581 | DoStoreKeyedExternalArray(instr); |
| 4582 | } else if (instr->hydrogen()->value()->representation().IsDouble()) { |
| 4583 | DoStoreKeyedFixedDoubleArray(instr); |
| 4584 | } else { |
| 4585 | DoStoreKeyedFixedArray(instr); |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 4586 | } |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4587 | } |
| 4588 | |
| 4589 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4590 | void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 4591 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4592 | ASSERT(ToRegister(instr->object()).is(edx)); |
| 4593 | ASSERT(ToRegister(instr->key()).is(ecx)); |
| 4594 | ASSERT(ToRegister(instr->value()).is(eax)); |
| 4595 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4596 | Handle<Code> ic = (instr->strict_mode_flag() == kStrictMode) |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 4597 | ? isolate()->builtins()->KeyedStoreIC_Initialize_Strict() |
| 4598 | : isolate()->builtins()->KeyedStoreIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4599 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4600 | } |
| 4601 | |
| 4602 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4603 | void LCodeGen::DoTrapAllocationMemento(LTrapAllocationMemento* instr) { |
| 4604 | Register object = ToRegister(instr->object()); |
| 4605 | Register temp = ToRegister(instr->temp()); |
| 4606 | __ TestJSArrayForAllocationSiteInfo(object, temp); |
| 4607 | DeoptimizeIf(equal, instr->environment()); |
| 4608 | } |
| 4609 | |
| 4610 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4611 | void LCodeGen::DoTransitionElementsKind(LTransitionElementsKind* instr) { |
| 4612 | Register object_reg = ToRegister(instr->object()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4613 | |
| 4614 | Handle<Map> from_map = instr->original_map(); |
| 4615 | Handle<Map> to_map = instr->transitioned_map(); |
yangguo@chromium.org | 003650e | 2013-01-24 16:31:08 +0000 | [diff] [blame] | 4616 | ElementsKind from_kind = instr->from_kind(); |
| 4617 | ElementsKind to_kind = instr->to_kind(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4618 | |
| 4619 | Label not_applicable; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4620 | bool is_simple_map_transition = |
| 4621 | IsSimpleMapChangeTransition(from_kind, to_kind); |
| 4622 | Label::Distance branch_distance = |
| 4623 | is_simple_map_transition ? Label::kNear : Label::kFar; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4624 | __ cmp(FieldOperand(object_reg, HeapObject::kMapOffset), from_map); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4625 | __ j(not_equal, ¬_applicable, branch_distance); |
| 4626 | if (is_simple_map_transition) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4627 | Register new_map_reg = ToRegister(instr->new_map_temp()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4628 | Handle<Map> map = instr->hydrogen()->transitioned_map(); |
| 4629 | __ mov(FieldOperand(object_reg, HeapObject::kMapOffset), |
| 4630 | Immediate(map)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4631 | // Write barrier. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 4632 | ASSERT_NE(instr->temp(), NULL); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4633 | __ RecordWriteForMap(object_reg, to_map, new_map_reg, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 4634 | ToRegister(instr->temp()), |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4635 | kDontSaveFPRegs); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4636 | } else if (FLAG_compiled_transitions) { |
| 4637 | PushSafepointRegistersScope scope(this); |
| 4638 | if (!object_reg.is(eax)) { |
| 4639 | __ push(object_reg); |
| 4640 | } |
| 4641 | LoadContextFromDeferred(instr->context()); |
| 4642 | if (!object_reg.is(eax)) { |
| 4643 | __ pop(eax); |
| 4644 | } |
| 4645 | __ mov(ebx, to_map); |
| 4646 | TransitionElementsKindStub stub(from_kind, to_kind); |
| 4647 | __ CallStub(&stub); |
| 4648 | RecordSafepointWithRegisters( |
| 4649 | instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4650 | } else if (IsFastSmiElementsKind(from_kind) && |
| 4651 | IsFastDoubleElementsKind(to_kind)) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4652 | Register new_map_reg = ToRegister(instr->new_map_temp()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4653 | __ mov(new_map_reg, to_map); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 4654 | Register fixed_object_reg = ToRegister(instr->temp()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4655 | ASSERT(fixed_object_reg.is(edx)); |
| 4656 | ASSERT(new_map_reg.is(ebx)); |
| 4657 | __ mov(fixed_object_reg, object_reg); |
| 4658 | CallCode(isolate()->builtins()->TransitionElementsSmiToDouble(), |
| 4659 | RelocInfo::CODE_TARGET, instr); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4660 | } else if (IsFastDoubleElementsKind(from_kind) && |
| 4661 | IsFastObjectElementsKind(to_kind)) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4662 | Register new_map_reg = ToRegister(instr->new_map_temp()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4663 | __ mov(new_map_reg, to_map); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 4664 | Register fixed_object_reg = ToRegister(instr->temp()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4665 | ASSERT(fixed_object_reg.is(edx)); |
| 4666 | ASSERT(new_map_reg.is(ebx)); |
| 4667 | __ mov(fixed_object_reg, object_reg); |
| 4668 | CallCode(isolate()->builtins()->TransitionElementsDoubleToObject(), |
| 4669 | RelocInfo::CODE_TARGET, instr); |
| 4670 | } else { |
| 4671 | UNREACHABLE(); |
| 4672 | } |
| 4673 | __ bind(¬_applicable); |
| 4674 | } |
| 4675 | |
| 4676 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4677 | void LCodeGen::DoStringCharCodeAt(LStringCharCodeAt* instr) { |
| 4678 | class DeferredStringCharCodeAt: public LDeferredCode { |
| 4679 | public: |
| 4680 | DeferredStringCharCodeAt(LCodeGen* codegen, LStringCharCodeAt* instr) |
| 4681 | : LDeferredCode(codegen), instr_(instr) { } |
| 4682 | virtual void Generate() { codegen()->DoDeferredStringCharCodeAt(instr_); } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4683 | virtual LInstruction* instr() { return instr_; } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4684 | private: |
| 4685 | LStringCharCodeAt* instr_; |
| 4686 | }; |
| 4687 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4688 | DeferredStringCharCodeAt* deferred = |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4689 | new(zone()) DeferredStringCharCodeAt(this, instr); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4690 | |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 4691 | StringCharLoadGenerator::Generate(masm(), |
| 4692 | factory(), |
| 4693 | ToRegister(instr->string()), |
| 4694 | ToRegister(instr->index()), |
| 4695 | ToRegister(instr->result()), |
| 4696 | deferred->entry()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4697 | __ bind(deferred->exit()); |
| 4698 | } |
| 4699 | |
| 4700 | |
| 4701 | void LCodeGen::DoDeferredStringCharCodeAt(LStringCharCodeAt* instr) { |
| 4702 | Register string = ToRegister(instr->string()); |
| 4703 | Register result = ToRegister(instr->result()); |
| 4704 | |
| 4705 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 4706 | // result register contain a valid pointer because it is already |
| 4707 | // contained in the register pointer map. |
| 4708 | __ Set(result, Immediate(0)); |
| 4709 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4710 | PushSafepointRegistersScope scope(this); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4711 | __ push(string); |
| 4712 | // Push the index as a smi. This is safe because of the checks in |
| 4713 | // DoStringCharCodeAt above. |
| 4714 | STATIC_ASSERT(String::kMaxLength <= Smi::kMaxValue); |
| 4715 | if (instr->index()->IsConstantOperand()) { |
| 4716 | int const_index = ToInteger32(LConstantOperand::cast(instr->index())); |
| 4717 | __ push(Immediate(Smi::FromInt(const_index))); |
| 4718 | } else { |
| 4719 | Register index = ToRegister(instr->index()); |
| 4720 | __ SmiTag(index); |
| 4721 | __ push(index); |
| 4722 | } |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4723 | CallRuntimeFromDeferred(Runtime::kStringCharCodeAt, 2, |
| 4724 | instr, instr->context()); |
svenpanne@chromium.org | c859c4f | 2012-10-15 11:51:39 +0000 | [diff] [blame] | 4725 | __ AssertSmi(eax); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4726 | __ SmiUntag(eax); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 4727 | __ StoreToSafepointRegisterSlot(result, eax); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4728 | } |
| 4729 | |
| 4730 | |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4731 | void LCodeGen::DoStringCharFromCode(LStringCharFromCode* instr) { |
| 4732 | class DeferredStringCharFromCode: public LDeferredCode { |
| 4733 | public: |
| 4734 | DeferredStringCharFromCode(LCodeGen* codegen, LStringCharFromCode* instr) |
| 4735 | : LDeferredCode(codegen), instr_(instr) { } |
| 4736 | virtual void Generate() { codegen()->DoDeferredStringCharFromCode(instr_); } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4737 | virtual LInstruction* instr() { return instr_; } |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4738 | private: |
| 4739 | LStringCharFromCode* instr_; |
| 4740 | }; |
| 4741 | |
| 4742 | DeferredStringCharFromCode* deferred = |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4743 | new(zone()) DeferredStringCharFromCode(this, instr); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4744 | |
| 4745 | ASSERT(instr->hydrogen()->value()->representation().IsInteger32()); |
| 4746 | Register char_code = ToRegister(instr->char_code()); |
| 4747 | Register result = ToRegister(instr->result()); |
| 4748 | ASSERT(!char_code.is(result)); |
| 4749 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4750 | __ cmp(char_code, String::kMaxOneByteCharCode); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4751 | __ j(above, deferred->entry()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4752 | __ Set(result, Immediate(factory()->single_character_string_cache())); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4753 | __ mov(result, FieldOperand(result, |
| 4754 | char_code, times_pointer_size, |
| 4755 | FixedArray::kHeaderSize)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4756 | __ cmp(result, factory()->undefined_value()); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4757 | __ j(equal, deferred->entry()); |
| 4758 | __ bind(deferred->exit()); |
| 4759 | } |
| 4760 | |
| 4761 | |
| 4762 | void LCodeGen::DoDeferredStringCharFromCode(LStringCharFromCode* instr) { |
| 4763 | Register char_code = ToRegister(instr->char_code()); |
| 4764 | Register result = ToRegister(instr->result()); |
| 4765 | |
| 4766 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 4767 | // result register contain a valid pointer because it is already |
| 4768 | // contained in the register pointer map. |
| 4769 | __ Set(result, Immediate(0)); |
| 4770 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4771 | PushSafepointRegistersScope scope(this); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4772 | __ SmiTag(char_code); |
| 4773 | __ push(char_code); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4774 | CallRuntimeFromDeferred(Runtime::kCharFromCode, 1, instr, instr->context()); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4775 | __ StoreToSafepointRegisterSlot(result, eax); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4776 | } |
| 4777 | |
| 4778 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4779 | void LCodeGen::DoStringLength(LStringLength* instr) { |
| 4780 | Register string = ToRegister(instr->string()); |
| 4781 | Register result = ToRegister(instr->result()); |
| 4782 | __ mov(result, FieldOperand(string, String::kLengthOffset)); |
| 4783 | } |
| 4784 | |
| 4785 | |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 4786 | void LCodeGen::DoStringAdd(LStringAdd* instr) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 4787 | EmitPushTaggedOperand(instr->left()); |
| 4788 | EmitPushTaggedOperand(instr->right()); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 4789 | StringAddStub stub(NO_STRING_CHECK_IN_STUB); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4790 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 4791 | } |
| 4792 | |
| 4793 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4794 | void LCodeGen::DoInteger32ToDouble(LInteger32ToDouble* instr) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4795 | if (CpuFeatures::IsSupported(SSE2)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4796 | CpuFeatureScope scope(masm(), SSE2); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4797 | LOperand* input = instr->value(); |
| 4798 | ASSERT(input->IsRegister() || input->IsStackSlot()); |
| 4799 | LOperand* output = instr->result(); |
| 4800 | ASSERT(output->IsDoubleRegister()); |
| 4801 | __ cvtsi2sd(ToDoubleRegister(output), ToOperand(input)); |
| 4802 | } else { |
| 4803 | UNREACHABLE(); |
| 4804 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4805 | } |
| 4806 | |
| 4807 | |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 4808 | void LCodeGen::DoInteger32ToSmi(LInteger32ToSmi* instr) { |
| 4809 | Register input = ToRegister(instr->value()); |
| 4810 | __ SmiTag(input); |
| 4811 | if (!instr->hydrogen()->value()->HasRange() || |
| 4812 | !instr->hydrogen()->value()->range()->IsInSmiRange()) { |
| 4813 | DeoptimizeIf(overflow, instr->environment()); |
| 4814 | } |
| 4815 | } |
| 4816 | |
| 4817 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4818 | void LCodeGen::DoUint32ToDouble(LUint32ToDouble* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4819 | CpuFeatureScope scope(masm(), SSE2); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 4820 | LOperand* input = instr->value(); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4821 | LOperand* output = instr->result(); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 4822 | LOperand* temp = instr->temp(); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4823 | |
| 4824 | __ LoadUint32(ToDoubleRegister(output), |
| 4825 | ToRegister(input), |
| 4826 | ToDoubleRegister(temp)); |
| 4827 | } |
| 4828 | |
| 4829 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4830 | void LCodeGen::DoNumberTagI(LNumberTagI* instr) { |
| 4831 | class DeferredNumberTagI: public LDeferredCode { |
| 4832 | public: |
| 4833 | DeferredNumberTagI(LCodeGen* codegen, LNumberTagI* instr) |
| 4834 | : LDeferredCode(codegen), instr_(instr) { } |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4835 | virtual void Generate() { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 4836 | codegen()->DoDeferredNumberTagI(instr_, instr_->value(), SIGNED_INT32); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4837 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4838 | virtual LInstruction* instr() { return instr_; } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4839 | private: |
| 4840 | LNumberTagI* instr_; |
| 4841 | }; |
| 4842 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 4843 | LOperand* input = instr->value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4844 | ASSERT(input->IsRegister() && input->Equals(instr->result())); |
| 4845 | Register reg = ToRegister(input); |
| 4846 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4847 | DeferredNumberTagI* deferred = new(zone()) DeferredNumberTagI(this, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4848 | __ SmiTag(reg); |
| 4849 | __ j(overflow, deferred->entry()); |
| 4850 | __ bind(deferred->exit()); |
| 4851 | } |
| 4852 | |
| 4853 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4854 | void LCodeGen::DoNumberTagU(LNumberTagU* instr) { |
| 4855 | class DeferredNumberTagU: public LDeferredCode { |
| 4856 | public: |
| 4857 | DeferredNumberTagU(LCodeGen* codegen, LNumberTagU* instr) |
| 4858 | : LDeferredCode(codegen), instr_(instr) { } |
| 4859 | virtual void Generate() { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 4860 | codegen()->DoDeferredNumberTagI(instr_, instr_->value(), UNSIGNED_INT32); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4861 | } |
| 4862 | virtual LInstruction* instr() { return instr_; } |
| 4863 | private: |
| 4864 | LNumberTagU* instr_; |
| 4865 | }; |
| 4866 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 4867 | LOperand* input = instr->value(); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4868 | ASSERT(input->IsRegister() && input->Equals(instr->result())); |
| 4869 | Register reg = ToRegister(input); |
| 4870 | |
| 4871 | DeferredNumberTagU* deferred = new(zone()) DeferredNumberTagU(this, instr); |
| 4872 | __ cmp(reg, Immediate(Smi::kMaxValue)); |
| 4873 | __ j(above, deferred->entry()); |
| 4874 | __ SmiTag(reg); |
| 4875 | __ bind(deferred->exit()); |
| 4876 | } |
| 4877 | |
| 4878 | |
| 4879 | void LCodeGen::DoDeferredNumberTagI(LInstruction* instr, |
| 4880 | LOperand* value, |
| 4881 | IntegerSignedness signedness) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4882 | Label slow; |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4883 | Register reg = ToRegister(value); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4884 | Register tmp = reg.is(eax) ? ecx : eax; |
| 4885 | |
| 4886 | // Preserve the value of all registers. |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4887 | PushSafepointRegistersScope scope(this); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4888 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4889 | Label done; |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4890 | |
| 4891 | if (signedness == SIGNED_INT32) { |
| 4892 | // There was overflow, so bits 30 and 31 of the original integer |
| 4893 | // disagree. Try to allocate a heap number in new space and store |
| 4894 | // the value in there. If that fails, call the runtime system. |
| 4895 | __ SmiUntag(reg); |
| 4896 | __ xor_(reg, 0x80000000); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4897 | if (CpuFeatures::IsSupported(SSE2)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4898 | CpuFeatureScope feature_scope(masm(), SSE2); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4899 | __ cvtsi2sd(xmm0, Operand(reg)); |
| 4900 | } else { |
| 4901 | __ push(reg); |
| 4902 | __ fild_s(Operand(esp, 0)); |
| 4903 | __ pop(reg); |
| 4904 | } |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4905 | } else { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4906 | if (CpuFeatures::IsSupported(SSE2)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4907 | CpuFeatureScope feature_scope(masm(), SSE2); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4908 | __ LoadUint32(xmm0, reg, xmm1); |
| 4909 | } else { |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 4910 | // There's no fild variant for unsigned values, so zero-extend to a 64-bit |
| 4911 | // int manually. |
| 4912 | __ push(Immediate(0)); |
| 4913 | __ push(reg); |
| 4914 | __ fild_d(Operand(esp, 0)); |
| 4915 | __ pop(reg); |
| 4916 | __ pop(reg); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4917 | } |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4918 | } |
| 4919 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4920 | if (FLAG_inline_new) { |
| 4921 | __ AllocateHeapNumber(reg, tmp, no_reg, &slow); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4922 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4923 | } |
| 4924 | |
| 4925 | // Slow case: Call the runtime system to do the number allocation. |
| 4926 | __ bind(&slow); |
| 4927 | |
| 4928 | // TODO(3095996): Put a valid pointer value in the stack slot where the result |
| 4929 | // register is stored, as this register is in the pointer map, but contains an |
| 4930 | // integer value. |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 4931 | __ StoreToSafepointRegisterSlot(reg, Immediate(0)); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4932 | // NumberTagI and NumberTagD use the context from the frame, rather than |
| 4933 | // the environment's HContext or HInlinedContext value. |
| 4934 | // They only call Runtime::kAllocateHeapNumber. |
| 4935 | // The corresponding HChange instructions are added in a phase that does |
| 4936 | // not have easy access to the local context. |
| 4937 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 4938 | __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); |
| 4939 | RecordSafepointWithRegisters( |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4940 | instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4941 | if (!reg.is(eax)) __ mov(reg, eax); |
| 4942 | |
| 4943 | // Done. Put the value in xmm0 into the value of the allocated heap |
| 4944 | // number. |
| 4945 | __ bind(&done); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4946 | if (CpuFeatures::IsSupported(SSE2)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4947 | CpuFeatureScope feature_scope(masm(), SSE2); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4948 | __ movdbl(FieldOperand(reg, HeapNumber::kValueOffset), xmm0); |
| 4949 | } else { |
| 4950 | __ fstp_d(FieldOperand(reg, HeapNumber::kValueOffset)); |
| 4951 | } |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 4952 | __ StoreToSafepointRegisterSlot(reg, reg); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4953 | } |
| 4954 | |
| 4955 | |
| 4956 | void LCodeGen::DoNumberTagD(LNumberTagD* instr) { |
| 4957 | class DeferredNumberTagD: public LDeferredCode { |
| 4958 | public: |
| 4959 | DeferredNumberTagD(LCodeGen* codegen, LNumberTagD* instr) |
| 4960 | : LDeferredCode(codegen), instr_(instr) { } |
| 4961 | virtual void Generate() { codegen()->DoDeferredNumberTagD(instr_); } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4962 | virtual LInstruction* instr() { return instr_; } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4963 | private: |
| 4964 | LNumberTagD* instr_; |
| 4965 | }; |
| 4966 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4967 | Register reg = ToRegister(instr->result()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4968 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4969 | bool convert_hole = false; |
| 4970 | HValue* change_input = instr->hydrogen()->value(); |
| 4971 | if (change_input->IsLoadKeyed()) { |
| 4972 | HLoadKeyed* load = HLoadKeyed::cast(change_input); |
| 4973 | convert_hole = load->UsesMustHandleHole(); |
| 4974 | } |
| 4975 | |
| 4976 | Label no_special_nan_handling; |
| 4977 | Label done; |
| 4978 | if (convert_hole) { |
| 4979 | bool use_sse2 = CpuFeatures::IsSupported(SSE2); |
| 4980 | if (use_sse2) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4981 | CpuFeatureScope scope(masm(), SSE2); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4982 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
| 4983 | __ ucomisd(input_reg, input_reg); |
| 4984 | } else { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4985 | __ fld(0); |
| 4986 | __ fld(0); |
| 4987 | __ FCmp(); |
| 4988 | } |
| 4989 | |
| 4990 | __ j(parity_odd, &no_special_nan_handling); |
| 4991 | __ sub(esp, Immediate(kDoubleSize)); |
| 4992 | if (use_sse2) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4993 | CpuFeatureScope scope(masm(), SSE2); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4994 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
| 4995 | __ movdbl(MemOperand(esp, 0), input_reg); |
| 4996 | } else { |
| 4997 | __ fld(0); |
| 4998 | __ fstp_d(MemOperand(esp, 0)); |
| 4999 | } |
| 5000 | __ cmp(MemOperand(esp, sizeof(kHoleNanLower32)), |
| 5001 | Immediate(kHoleNanUpper32)); |
| 5002 | Label canonicalize; |
| 5003 | __ j(not_equal, &canonicalize); |
| 5004 | __ add(esp, Immediate(kDoubleSize)); |
| 5005 | __ mov(reg, factory()->the_hole_value()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5006 | if (!use_sse2) { |
| 5007 | __ fstp(0); |
| 5008 | } |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5009 | __ jmp(&done); |
| 5010 | __ bind(&canonicalize); |
| 5011 | __ add(esp, Immediate(kDoubleSize)); |
| 5012 | ExternalReference nan = |
| 5013 | ExternalReference::address_of_canonical_non_hole_nan(); |
| 5014 | if (use_sse2) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5015 | CpuFeatureScope scope(masm(), SSE2); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5016 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
| 5017 | __ movdbl(input_reg, Operand::StaticVariable(nan)); |
| 5018 | } else { |
| 5019 | __ fstp(0); |
| 5020 | __ fld_d(Operand::StaticVariable(nan)); |
| 5021 | } |
| 5022 | } |
| 5023 | |
| 5024 | __ bind(&no_special_nan_handling); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 5025 | DeferredNumberTagD* deferred = new(zone()) DeferredNumberTagD(this, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5026 | if (FLAG_inline_new) { |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 5027 | Register tmp = ToRegister(instr->temp()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5028 | __ AllocateHeapNumber(reg, tmp, no_reg, deferred->entry()); |
| 5029 | } else { |
| 5030 | __ jmp(deferred->entry()); |
| 5031 | } |
| 5032 | __ bind(deferred->exit()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5033 | if (CpuFeatures::IsSupported(SSE2)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5034 | CpuFeatureScope scope(masm(), SSE2); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5035 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
| 5036 | __ movdbl(FieldOperand(reg, HeapNumber::kValueOffset), input_reg); |
| 5037 | } else { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5038 | __ fst_d(FieldOperand(reg, HeapNumber::kValueOffset)); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5039 | } |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5040 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5041 | } |
| 5042 | |
| 5043 | |
| 5044 | void LCodeGen::DoDeferredNumberTagD(LNumberTagD* instr) { |
| 5045 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 5046 | // result register contain a valid pointer because it is already |
| 5047 | // contained in the register pointer map. |
| 5048 | Register reg = ToRegister(instr->result()); |
| 5049 | __ Set(reg, Immediate(0)); |
| 5050 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 5051 | PushSafepointRegistersScope scope(this); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 5052 | // NumberTagI and NumberTagD use the context from the frame, rather than |
| 5053 | // the environment's HContext or HInlinedContext value. |
| 5054 | // They only call Runtime::kAllocateHeapNumber. |
| 5055 | // The corresponding HChange instructions are added in a phase that does |
| 5056 | // not have easy access to the local context. |
| 5057 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 5058 | __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5059 | RecordSafepointWithRegisters( |
| 5060 | instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 5061 | __ StoreToSafepointRegisterSlot(reg, eax); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5062 | } |
| 5063 | |
| 5064 | |
| 5065 | void LCodeGen::DoSmiTag(LSmiTag* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5066 | LOperand* input = instr->value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5067 | ASSERT(input->IsRegister() && input->Equals(instr->result())); |
| 5068 | ASSERT(!instr->hydrogen_value()->CheckFlag(HValue::kCanOverflow)); |
| 5069 | __ SmiTag(ToRegister(input)); |
| 5070 | } |
| 5071 | |
| 5072 | |
| 5073 | void LCodeGen::DoSmiUntag(LSmiUntag* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5074 | LOperand* input = instr->value(); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5075 | Register result = ToRegister(input); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5076 | ASSERT(input->IsRegister() && input->Equals(instr->result())); |
| 5077 | if (instr->needs_check()) { |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5078 | __ test(result, Immediate(kSmiTagMask)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5079 | DeoptimizeIf(not_zero, instr->environment()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 5080 | } else { |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5081 | __ AssertSmi(result); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5082 | } |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5083 | __ SmiUntag(result); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5084 | } |
| 5085 | |
| 5086 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5087 | void LCodeGen::EmitNumberUntagDNoSSE2(Register input_reg, |
| 5088 | Register temp_reg, |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 5089 | bool allow_undefined_as_nan, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5090 | bool deoptimize_on_minus_zero, |
| 5091 | LEnvironment* env, |
| 5092 | NumberUntagDMode mode) { |
| 5093 | Label load_smi, done; |
| 5094 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5095 | STATIC_ASSERT(NUMBER_CANDIDATE_IS_ANY_TAGGED_CONVERT_HOLE > |
| 5096 | NUMBER_CANDIDATE_IS_ANY_TAGGED); |
| 5097 | if (mode >= NUMBER_CANDIDATE_IS_ANY_TAGGED) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5098 | // Smi check. |
| 5099 | __ JumpIfSmi(input_reg, &load_smi, Label::kNear); |
| 5100 | |
| 5101 | // Heap number map check. |
| 5102 | __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
| 5103 | factory()->heap_number_map()); |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 5104 | if (!allow_undefined_as_nan) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5105 | DeoptimizeIf(not_equal, env); |
| 5106 | } else { |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5107 | Label heap_number, convert; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5108 | __ j(equal, &heap_number, Label::kNear); |
| 5109 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5110 | // Convert undefined (or hole) to NaN. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5111 | __ cmp(input_reg, factory()->undefined_value()); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5112 | if (mode == NUMBER_CANDIDATE_IS_ANY_TAGGED_CONVERT_HOLE) { |
| 5113 | __ j(equal, &convert, Label::kNear); |
| 5114 | __ cmp(input_reg, factory()->the_hole_value()); |
| 5115 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5116 | DeoptimizeIf(not_equal, env); |
| 5117 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5118 | __ bind(&convert); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5119 | ExternalReference nan = |
| 5120 | ExternalReference::address_of_canonical_non_hole_nan(); |
| 5121 | __ fld_d(Operand::StaticVariable(nan)); |
| 5122 | __ jmp(&done, Label::kNear); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5123 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5124 | __ bind(&heap_number); |
| 5125 | } |
| 5126 | // Heap number to x87 conversion. |
| 5127 | __ fld_d(FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 5128 | if (deoptimize_on_minus_zero) { |
| 5129 | __ fldz(); |
| 5130 | __ FCmp(); |
| 5131 | __ fld_d(FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 5132 | __ j(not_zero, &done, Label::kNear); |
| 5133 | |
| 5134 | // Use general purpose registers to check if we have -0.0 |
| 5135 | __ mov(temp_reg, FieldOperand(input_reg, HeapNumber::kExponentOffset)); |
| 5136 | __ test(temp_reg, Immediate(HeapNumber::kSignMask)); |
| 5137 | __ j(zero, &done, Label::kNear); |
| 5138 | |
| 5139 | // Pop FPU stack before deoptimizing. |
| 5140 | __ fstp(0); |
| 5141 | DeoptimizeIf(not_zero, env); |
| 5142 | } |
| 5143 | __ jmp(&done, Label::kNear); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5144 | } else { |
| 5145 | ASSERT(mode == NUMBER_CANDIDATE_IS_SMI); |
| 5146 | } |
| 5147 | |
| 5148 | __ bind(&load_smi); |
| 5149 | __ SmiUntag(input_reg); // Untag smi before converting to float. |
| 5150 | __ push(input_reg); |
| 5151 | __ fild_s(Operand(esp, 0)); |
| 5152 | __ pop(input_reg); |
| 5153 | __ SmiTag(input_reg); // Retag smi. |
| 5154 | __ bind(&done); |
| 5155 | } |
| 5156 | |
| 5157 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5158 | void LCodeGen::EmitNumberUntagD(Register input_reg, |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 5159 | Register temp_reg, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5160 | XMMRegister result_reg, |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 5161 | bool allow_undefined_as_nan, |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 5162 | bool deoptimize_on_minus_zero, |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5163 | LEnvironment* env, |
| 5164 | NumberUntagDMode mode) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 5165 | Label load_smi, done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5166 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5167 | STATIC_ASSERT(NUMBER_CANDIDATE_IS_ANY_TAGGED_CONVERT_HOLE > |
| 5168 | NUMBER_CANDIDATE_IS_ANY_TAGGED); |
| 5169 | if (mode >= NUMBER_CANDIDATE_IS_ANY_TAGGED) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5170 | // Smi check. |
| 5171 | __ JumpIfSmi(input_reg, &load_smi, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5172 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5173 | // Heap number map check. |
| 5174 | __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
| 5175 | factory()->heap_number_map()); |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 5176 | if (!allow_undefined_as_nan) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5177 | DeoptimizeIf(not_equal, env); |
| 5178 | } else { |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5179 | Label heap_number, convert; |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5180 | __ j(equal, &heap_number, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5181 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5182 | // Convert undefined (and hole) to NaN. |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5183 | __ cmp(input_reg, factory()->undefined_value()); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5184 | if (mode == NUMBER_CANDIDATE_IS_ANY_TAGGED_CONVERT_HOLE) { |
| 5185 | __ j(equal, &convert, Label::kNear); |
| 5186 | __ cmp(input_reg, factory()->the_hole_value()); |
| 5187 | } |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5188 | DeoptimizeIf(not_equal, env); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5189 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5190 | __ bind(&convert); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5191 | ExternalReference nan = |
| 5192 | ExternalReference::address_of_canonical_non_hole_nan(); |
| 5193 | __ movdbl(result_reg, Operand::StaticVariable(nan)); |
| 5194 | __ jmp(&done, Label::kNear); |
| 5195 | |
| 5196 | __ bind(&heap_number); |
| 5197 | } |
| 5198 | // Heap number to XMM conversion. |
| 5199 | __ movdbl(result_reg, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 5200 | if (deoptimize_on_minus_zero) { |
| 5201 | XMMRegister xmm_scratch = xmm0; |
| 5202 | __ xorps(xmm_scratch, xmm_scratch); |
| 5203 | __ ucomisd(result_reg, xmm_scratch); |
| 5204 | __ j(not_zero, &done, Label::kNear); |
| 5205 | __ movmskpd(temp_reg, result_reg); |
| 5206 | __ test_b(temp_reg, 1); |
| 5207 | DeoptimizeIf(not_zero, env); |
| 5208 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 5209 | __ jmp(&done, Label::kNear); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5210 | } else { |
| 5211 | ASSERT(mode == NUMBER_CANDIDATE_IS_SMI); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 5212 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5213 | |
| 5214 | // Smi to XMM conversion |
| 5215 | __ bind(&load_smi); |
| 5216 | __ SmiUntag(input_reg); // Untag smi before converting to float. |
| 5217 | __ cvtsi2sd(result_reg, Operand(input_reg)); |
| 5218 | __ SmiTag(input_reg); // Retag smi. |
| 5219 | __ bind(&done); |
| 5220 | } |
| 5221 | |
| 5222 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5223 | void LCodeGen::DoDeferredTaggedToI(LTaggedToI* instr) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5224 | Label done, heap_number; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5225 | Register input_reg = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5226 | |
| 5227 | // Heap number map check. |
| 5228 | __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5229 | factory()->heap_number_map()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5230 | |
| 5231 | if (instr->truncating()) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5232 | __ j(equal, &heap_number, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5233 | // Check for undefined. Undefined is converted to zero for truncating |
| 5234 | // conversions. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5235 | __ cmp(input_reg, factory()->undefined_value()); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 5236 | __ RecordComment("Deferred TaggedToI: cannot truncate"); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5237 | DeoptimizeIf(not_equal, instr->environment()); |
| 5238 | __ mov(input_reg, 0); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5239 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5240 | |
| 5241 | __ bind(&heap_number); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5242 | if (CpuFeatures::IsSupported(SSE3)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5243 | CpuFeatureScope scope(masm(), SSE3); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5244 | Label convert; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5245 | // Use more powerful conversion when sse3 is available. |
| 5246 | // Load x87 register with heap number. |
| 5247 | __ fld_d(FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 5248 | // Get exponent alone and check for too-big exponent. |
| 5249 | __ mov(input_reg, FieldOperand(input_reg, HeapNumber::kExponentOffset)); |
| 5250 | __ and_(input_reg, HeapNumber::kExponentMask); |
| 5251 | const uint32_t kTooBigExponent = |
| 5252 | (HeapNumber::kExponentBias + 63) << HeapNumber::kExponentShift; |
| 5253 | __ cmp(Operand(input_reg), Immediate(kTooBigExponent)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5254 | __ j(less, &convert, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5255 | // Pop FPU stack before deoptimizing. |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 5256 | __ fstp(0); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 5257 | __ RecordComment("Deferred TaggedToI: exponent too big"); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5258 | DeoptimizeIf(no_condition, instr->environment()); |
| 5259 | |
| 5260 | // Reserve space for 64 bit answer. |
| 5261 | __ bind(&convert); |
| 5262 | __ sub(Operand(esp), Immediate(kDoubleSize)); |
| 5263 | // Do conversion, which cannot fail because we checked the exponent. |
| 5264 | __ fisttp_d(Operand(esp, 0)); |
| 5265 | __ mov(input_reg, Operand(esp, 0)); // Low word of answer is the result. |
| 5266 | __ add(Operand(esp), Immediate(kDoubleSize)); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5267 | } else if (CpuFeatures::IsSupported(SSE2)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5268 | CpuFeatureScope scope(masm(), SSE2); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5269 | XMMRegister xmm_temp = ToDoubleRegister(instr->temp()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5270 | __ movdbl(xmm0, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 5271 | __ cvttsd2si(input_reg, Operand(xmm0)); |
| 5272 | __ cmp(input_reg, 0x80000000u); |
| 5273 | __ j(not_equal, &done); |
| 5274 | // Check if the input was 0x8000000 (kMinInt). |
| 5275 | // If no, then we got an overflow and we deoptimize. |
| 5276 | ExternalReference min_int = ExternalReference::address_of_min_int(); |
| 5277 | __ movdbl(xmm_temp, Operand::StaticVariable(min_int)); |
| 5278 | __ ucomisd(xmm_temp, xmm0); |
| 5279 | DeoptimizeIf(not_equal, instr->environment()); |
| 5280 | DeoptimizeIf(parity_even, instr->environment()); // NaN. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5281 | } else { |
| 5282 | UNREACHABLE(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5283 | } |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5284 | } else if (CpuFeatures::IsSupported(SSE2)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5285 | CpuFeatureScope scope(masm(), SSE2); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5286 | // Deoptimize if we don't have a heap number. |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 5287 | __ RecordComment("Deferred TaggedToI: not a heap number"); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5288 | DeoptimizeIf(not_equal, instr->environment()); |
| 5289 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5290 | XMMRegister xmm_temp = ToDoubleRegister(instr->temp()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5291 | __ movdbl(xmm0, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 5292 | __ cvttsd2si(input_reg, Operand(xmm0)); |
| 5293 | __ cvtsi2sd(xmm_temp, Operand(input_reg)); |
| 5294 | __ ucomisd(xmm0, xmm_temp); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 5295 | __ RecordComment("Deferred TaggedToI: lost precision"); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5296 | DeoptimizeIf(not_equal, instr->environment()); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 5297 | __ RecordComment("Deferred TaggedToI: NaN"); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5298 | DeoptimizeIf(parity_even, instr->environment()); // NaN. |
| 5299 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 5300 | __ test(input_reg, Operand(input_reg)); |
| 5301 | __ j(not_zero, &done); |
| 5302 | __ movmskpd(input_reg, xmm0); |
| 5303 | __ and_(input_reg, 1); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 5304 | __ RecordComment("Deferred TaggedToI: minus zero"); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5305 | DeoptimizeIf(not_zero, instr->environment()); |
| 5306 | } |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5307 | } else { |
| 5308 | UNREACHABLE(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5309 | } |
| 5310 | __ bind(&done); |
| 5311 | } |
| 5312 | |
| 5313 | |
| 5314 | void LCodeGen::DoTaggedToI(LTaggedToI* instr) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5315 | class DeferredTaggedToI: public LDeferredCode { |
| 5316 | public: |
| 5317 | DeferredTaggedToI(LCodeGen* codegen, LTaggedToI* instr) |
| 5318 | : LDeferredCode(codegen), instr_(instr) { } |
| 5319 | virtual void Generate() { codegen()->DoDeferredTaggedToI(instr_); } |
| 5320 | virtual LInstruction* instr() { return instr_; } |
| 5321 | private: |
| 5322 | LTaggedToI* instr_; |
| 5323 | }; |
| 5324 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5325 | LOperand* input = instr->value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5326 | ASSERT(input->IsRegister()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5327 | Register input_reg = ToRegister(input); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5328 | ASSERT(input_reg.is(ToRegister(instr->result()))); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5329 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 5330 | DeferredTaggedToI* deferred = new(zone()) DeferredTaggedToI(this, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5331 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5332 | __ JumpIfNotSmi(input_reg, deferred->entry()); |
| 5333 | __ SmiUntag(input_reg); |
| 5334 | __ bind(deferred->exit()); |
| 5335 | } |
| 5336 | |
| 5337 | |
| 5338 | void LCodeGen::DoDeferredTaggedToINoSSE2(LTaggedToINoSSE2* instr) { |
| 5339 | Label done, heap_number; |
| 5340 | Register result_reg = ToRegister(instr->result()); |
| 5341 | Register input_reg = ToRegister(instr->value()); |
| 5342 | |
| 5343 | // Heap number map check. |
| 5344 | __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
| 5345 | factory()->heap_number_map()); |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 5346 | if (instr->truncating()) { |
| 5347 | __ j(equal, &heap_number, Label::kNear); |
| 5348 | // Check for undefined. Undefined is converted to zero for truncating |
| 5349 | // conversions. |
| 5350 | __ cmp(input_reg, factory()->undefined_value()); |
| 5351 | __ RecordComment("Deferred TaggedToI: cannot truncate"); |
| 5352 | DeoptimizeIf(not_equal, instr->environment()); |
| 5353 | __ xor_(result_reg, result_reg); |
| 5354 | __ jmp(&done, Label::kFar); |
| 5355 | __ bind(&heap_number); |
| 5356 | } else { |
| 5357 | // Deoptimize if we don't have a heap number. |
| 5358 | DeoptimizeIf(not_equal, instr->environment()); |
| 5359 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5360 | |
| 5361 | // Surprisingly, all of this crazy bit manipulation is considerably |
| 5362 | // faster than using the built-in x86 CPU conversion functions (about 6x). |
| 5363 | Label right_exponent, adjust_bias, zero_result; |
| 5364 | Register scratch = ToRegister(instr->scratch()); |
| 5365 | Register scratch2 = ToRegister(instr->scratch2()); |
| 5366 | // Get exponent word. |
| 5367 | __ mov(scratch, FieldOperand(input_reg, HeapNumber::kExponentOffset)); |
| 5368 | // Get exponent alone in scratch2. |
| 5369 | __ mov(scratch2, scratch); |
| 5370 | __ and_(scratch2, HeapNumber::kExponentMask); |
| 5371 | __ shr(scratch2, HeapNumber::kExponentShift); |
| 5372 | if (instr->truncating()) { |
| 5373 | __ j(zero, &zero_result); |
| 5374 | } else { |
| 5375 | __ j(not_zero, &adjust_bias); |
| 5376 | __ test(scratch, Immediate(HeapNumber::kMantissaMask)); |
| 5377 | DeoptimizeIf(not_zero, instr->environment()); |
| 5378 | __ cmp(FieldOperand(input_reg, HeapNumber::kMantissaOffset), Immediate(0)); |
| 5379 | DeoptimizeIf(not_equal, instr->environment()); |
| 5380 | __ bind(&adjust_bias); |
| 5381 | } |
| 5382 | __ sub(scratch2, Immediate(HeapNumber::kExponentBias)); |
| 5383 | if (!instr->truncating()) { |
| 5384 | DeoptimizeIf(negative, instr->environment()); |
| 5385 | } else { |
| 5386 | __ j(negative, &zero_result); |
| 5387 | } |
| 5388 | |
| 5389 | // Get the second half of the double. For some exponents we don't |
| 5390 | // actually need this because the bits get shifted out again, but |
| 5391 | // it's probably slower to test than just to do it. |
| 5392 | Register scratch3 = ToRegister(instr->scratch3()); |
| 5393 | __ mov(scratch3, FieldOperand(input_reg, HeapNumber::kMantissaOffset)); |
| 5394 | __ xor_(result_reg, result_reg); |
| 5395 | |
| 5396 | const uint32_t non_int32_exponent = 31; |
| 5397 | __ cmp(scratch2, Immediate(non_int32_exponent)); |
| 5398 | // If we have a match of the int32 exponent then skip some logic. |
| 5399 | __ j(equal, &right_exponent, Label::kNear); |
| 5400 | // If the number doesn't find in an int32, deopt. |
| 5401 | DeoptimizeIf(greater, instr->environment()); |
| 5402 | |
| 5403 | // Exponent word in scratch, exponent in scratch2. We know that 0 <= exponent |
| 5404 | // < 31. |
| 5405 | __ mov(result_reg, Immediate(31)); |
| 5406 | __ sub(result_reg, scratch2); |
| 5407 | |
| 5408 | __ bind(&right_exponent); |
| 5409 | |
| 5410 | // Save off exponent for negative check later. |
| 5411 | __ mov(scratch2, scratch); |
| 5412 | |
| 5413 | // Here result_reg is the shift, scratch is the exponent word. |
| 5414 | // Get the top bits of the mantissa. |
| 5415 | __ and_(scratch, HeapNumber::kMantissaMask); |
| 5416 | // Put back the implicit 1. |
| 5417 | __ or_(scratch, 1 << HeapNumber::kExponentShift); |
| 5418 | // Shift up the mantissa bits to take up the space the exponent used to |
| 5419 | // take. We have kExponentShift + 1 significant bits int he low end of the |
| 5420 | // word. Shift them to the top bits. |
| 5421 | const int shift_distance = HeapNumber::kNonMantissaBitsInTopWord - 1; |
| 5422 | __ shl(scratch, shift_distance); |
| 5423 | if (!instr->truncating()) { |
| 5424 | // If not truncating, a non-zero value in the bottom 22 bits means a |
| 5425 | // non-integral value --> trigger a deopt. |
| 5426 | __ test(scratch3, Immediate((1 << (32 - shift_distance)) - 1)); |
| 5427 | DeoptimizeIf(not_equal, instr->environment()); |
| 5428 | } |
| 5429 | // Shift down 22 bits to get the most significant 10 bits or the low |
| 5430 | // mantissa word. |
| 5431 | __ shr(scratch3, 32 - shift_distance); |
| 5432 | __ or_(scratch3, scratch); |
| 5433 | if (!instr->truncating()) { |
| 5434 | // If truncating, a non-zero value in the bits that will be shifted away |
| 5435 | // when adjusting the exponent means rounding --> deopt. |
| 5436 | __ mov(scratch, 0x1); |
| 5437 | ASSERT(result_reg.is(ecx)); |
| 5438 | __ shl_cl(scratch); |
| 5439 | __ dec(scratch); |
| 5440 | __ test(scratch3, scratch); |
| 5441 | DeoptimizeIf(not_equal, instr->environment()); |
| 5442 | } |
| 5443 | // Move down according to the exponent. |
| 5444 | ASSERT(result_reg.is(ecx)); |
| 5445 | __ shr_cl(scratch3); |
| 5446 | // Now the unsigned 32-bit answer is in scratch3. We need to move it to |
| 5447 | // result_reg and we may need to fix the sign. |
| 5448 | Label negative_result; |
| 5449 | __ xor_(result_reg, result_reg); |
| 5450 | __ cmp(scratch2, result_reg); |
| 5451 | __ j(less, &negative_result, Label::kNear); |
| 5452 | __ cmp(scratch3, result_reg); |
| 5453 | __ mov(result_reg, scratch3); |
| 5454 | // If the result is > MAX_INT, result doesn't fit in signed 32-bit --> deopt. |
| 5455 | DeoptimizeIf(less, instr->environment()); |
| 5456 | __ jmp(&done, Label::kNear); |
| 5457 | __ bind(&zero_result); |
| 5458 | __ xor_(result_reg, result_reg); |
| 5459 | __ jmp(&done, Label::kNear); |
| 5460 | __ bind(&negative_result); |
| 5461 | __ sub(result_reg, scratch3); |
| 5462 | if (!instr->truncating()) { |
| 5463 | // -0.0 triggers a deopt. |
| 5464 | DeoptimizeIf(zero, instr->environment()); |
| 5465 | } |
| 5466 | // If the negative subtraction overflows into a positive number, there was an |
| 5467 | // overflow --> deopt. |
| 5468 | DeoptimizeIf(positive, instr->environment()); |
| 5469 | __ bind(&done); |
| 5470 | } |
| 5471 | |
| 5472 | |
| 5473 | void LCodeGen::DoTaggedToINoSSE2(LTaggedToINoSSE2* instr) { |
| 5474 | class DeferredTaggedToINoSSE2: public LDeferredCode { |
| 5475 | public: |
| 5476 | DeferredTaggedToINoSSE2(LCodeGen* codegen, LTaggedToINoSSE2* instr) |
| 5477 | : LDeferredCode(codegen), instr_(instr) { } |
| 5478 | virtual void Generate() { codegen()->DoDeferredTaggedToINoSSE2(instr_); } |
| 5479 | virtual LInstruction* instr() { return instr_; } |
| 5480 | private: |
| 5481 | LTaggedToINoSSE2* instr_; |
| 5482 | }; |
| 5483 | |
| 5484 | LOperand* input = instr->value(); |
| 5485 | ASSERT(input->IsRegister()); |
| 5486 | Register input_reg = ToRegister(input); |
| 5487 | ASSERT(input_reg.is(ToRegister(instr->result()))); |
| 5488 | |
| 5489 | DeferredTaggedToINoSSE2* deferred = |
| 5490 | new(zone()) DeferredTaggedToINoSSE2(this, instr); |
| 5491 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5492 | // Smi check. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 5493 | __ JumpIfNotSmi(input_reg, deferred->entry()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5494 | __ SmiUntag(input_reg); // Untag smi. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5495 | __ bind(deferred->exit()); |
| 5496 | } |
| 5497 | |
| 5498 | |
| 5499 | void LCodeGen::DoNumberUntagD(LNumberUntagD* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5500 | LOperand* input = instr->value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5501 | ASSERT(input->IsRegister()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5502 | LOperand* temp = instr->temp(); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 5503 | ASSERT(temp == NULL || temp->IsRegister()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5504 | LOperand* result = instr->result(); |
| 5505 | ASSERT(result->IsDoubleRegister()); |
| 5506 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5507 | Register input_reg = ToRegister(input); |
| 5508 | bool deoptimize_on_minus_zero = |
| 5509 | instr->hydrogen()->deoptimize_on_minus_zero(); |
| 5510 | Register temp_reg = deoptimize_on_minus_zero ? ToRegister(temp) : no_reg; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5511 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5512 | NumberUntagDMode mode = NUMBER_CANDIDATE_IS_ANY_TAGGED; |
| 5513 | HValue* value = instr->hydrogen()->value(); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5514 | if (value->representation().IsSmi()) { |
| 5515 | mode = NUMBER_CANDIDATE_IS_SMI; |
| 5516 | } else if (value->IsLoadKeyed()) { |
| 5517 | HLoadKeyed* load = HLoadKeyed::cast(value); |
| 5518 | if (load->UsesMustHandleHole()) { |
| 5519 | mode = NUMBER_CANDIDATE_IS_ANY_TAGGED_CONVERT_HOLE; |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5520 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5521 | } |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5522 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5523 | if (CpuFeatures::IsSupported(SSE2)) { |
| 5524 | CpuFeatureScope scope(masm(), SSE2); |
| 5525 | XMMRegister result_reg = ToDoubleRegister(result); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5526 | EmitNumberUntagD(input_reg, |
| 5527 | temp_reg, |
| 5528 | result_reg, |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 5529 | instr->hydrogen()->allow_undefined_as_nan(), |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5530 | deoptimize_on_minus_zero, |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5531 | instr->environment(), |
| 5532 | mode); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5533 | } else { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5534 | EmitNumberUntagDNoSSE2(input_reg, |
| 5535 | temp_reg, |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 5536 | instr->hydrogen()->allow_undefined_as_nan(), |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5537 | deoptimize_on_minus_zero, |
| 5538 | instr->environment(), |
| 5539 | mode); |
| 5540 | CurrentInstructionReturnsX87Result(); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5541 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5542 | } |
| 5543 | |
| 5544 | |
| 5545 | void LCodeGen::DoDoubleToI(LDoubleToI* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5546 | LOperand* input = instr->value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5547 | ASSERT(input->IsDoubleRegister()); |
| 5548 | LOperand* result = instr->result(); |
| 5549 | ASSERT(result->IsRegister()); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5550 | CpuFeatureScope scope(masm(), SSE2); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5551 | |
| 5552 | XMMRegister input_reg = ToDoubleRegister(input); |
| 5553 | Register result_reg = ToRegister(result); |
| 5554 | |
| 5555 | if (instr->truncating()) { |
| 5556 | // Performs a truncating conversion of a floating point number as used by |
| 5557 | // the JS bitwise operations. |
| 5558 | __ cvttsd2si(result_reg, Operand(input_reg)); |
| 5559 | __ cmp(result_reg, 0x80000000u); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5560 | if (CpuFeatures::IsSupported(SSE3)) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5561 | // This will deoptimize if the exponent of the input in out of range. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5562 | CpuFeatureScope scope(masm(), SSE3); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5563 | Label convert, done; |
| 5564 | __ j(not_equal, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5565 | __ sub(Operand(esp), Immediate(kDoubleSize)); |
| 5566 | __ movdbl(Operand(esp, 0), input_reg); |
| 5567 | // Get exponent alone and check for too-big exponent. |
| 5568 | __ mov(result_reg, Operand(esp, sizeof(int32_t))); |
| 5569 | __ and_(result_reg, HeapNumber::kExponentMask); |
| 5570 | const uint32_t kTooBigExponent = |
| 5571 | (HeapNumber::kExponentBias + 63) << HeapNumber::kExponentShift; |
| 5572 | __ cmp(Operand(result_reg), Immediate(kTooBigExponent)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5573 | __ j(less, &convert, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5574 | __ add(Operand(esp), Immediate(kDoubleSize)); |
| 5575 | DeoptimizeIf(no_condition, instr->environment()); |
| 5576 | __ bind(&convert); |
| 5577 | // Do conversion, which cannot fail because we checked the exponent. |
| 5578 | __ fld_d(Operand(esp, 0)); |
| 5579 | __ fisttp_d(Operand(esp, 0)); |
| 5580 | __ mov(result_reg, Operand(esp, 0)); // Low word of answer is the result. |
| 5581 | __ add(Operand(esp), Immediate(kDoubleSize)); |
| 5582 | __ bind(&done); |
| 5583 | } else { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5584 | Label done; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5585 | Register temp_reg = ToRegister(instr->temp()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 5586 | XMMRegister xmm_scratch = xmm0; |
| 5587 | |
| 5588 | // If cvttsd2si succeeded, we're done. Otherwise, we attempt |
| 5589 | // manual conversion. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5590 | __ j(not_equal, &done, Label::kNear); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 5591 | |
| 5592 | // Get high 32 bits of the input in result_reg and temp_reg. |
| 5593 | __ pshufd(xmm_scratch, input_reg, 1); |
| 5594 | __ movd(Operand(temp_reg), xmm_scratch); |
| 5595 | __ mov(result_reg, temp_reg); |
| 5596 | |
| 5597 | // Prepare negation mask in temp_reg. |
| 5598 | __ sar(temp_reg, kBitsPerInt - 1); |
| 5599 | |
| 5600 | // Extract the exponent from result_reg and subtract adjusted |
| 5601 | // bias from it. The adjustment is selected in a way such that |
| 5602 | // when the difference is zero, the answer is in the low 32 bits |
| 5603 | // of the input, otherwise a shift has to be performed. |
| 5604 | __ shr(result_reg, HeapNumber::kExponentShift); |
| 5605 | __ and_(result_reg, |
| 5606 | HeapNumber::kExponentMask >> HeapNumber::kExponentShift); |
| 5607 | __ sub(Operand(result_reg), |
| 5608 | Immediate(HeapNumber::kExponentBias + |
| 5609 | HeapNumber::kExponentBits + |
| 5610 | HeapNumber::kMantissaBits)); |
| 5611 | // Don't handle big (> kMantissaBits + kExponentBits == 63) or |
| 5612 | // special exponents. |
| 5613 | DeoptimizeIf(greater, instr->environment()); |
| 5614 | |
| 5615 | // Zero out the sign and the exponent in the input (by shifting |
| 5616 | // it to the left) and restore the implicit mantissa bit, |
| 5617 | // i.e. convert the input to unsigned int64 shifted left by |
| 5618 | // kExponentBits. |
| 5619 | ExternalReference minus_zero = ExternalReference::address_of_minus_zero(); |
| 5620 | // Minus zero has the most significant bit set and the other |
| 5621 | // bits cleared. |
| 5622 | __ movdbl(xmm_scratch, Operand::StaticVariable(minus_zero)); |
| 5623 | __ psllq(input_reg, HeapNumber::kExponentBits); |
| 5624 | __ por(input_reg, xmm_scratch); |
| 5625 | |
| 5626 | // Get the amount to shift the input right in xmm_scratch. |
| 5627 | __ neg(result_reg); |
| 5628 | __ movd(xmm_scratch, Operand(result_reg)); |
| 5629 | |
| 5630 | // Shift the input right and extract low 32 bits. |
| 5631 | __ psrlq(input_reg, xmm_scratch); |
| 5632 | __ movd(Operand(result_reg), input_reg); |
| 5633 | |
| 5634 | // Use the prepared mask in temp_reg to negate the result if necessary. |
| 5635 | __ xor_(result_reg, Operand(temp_reg)); |
| 5636 | __ sub(result_reg, Operand(temp_reg)); |
| 5637 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5638 | } |
| 5639 | } else { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5640 | Label done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5641 | __ cvttsd2si(result_reg, Operand(input_reg)); |
| 5642 | __ cvtsi2sd(xmm0, Operand(result_reg)); |
| 5643 | __ ucomisd(xmm0, input_reg); |
| 5644 | DeoptimizeIf(not_equal, instr->environment()); |
| 5645 | DeoptimizeIf(parity_even, instr->environment()); // NaN. |
| 5646 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 5647 | // The integer converted back is equal to the original. We |
| 5648 | // only have to test if we got -0 as an input. |
| 5649 | __ test(result_reg, Operand(result_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5650 | __ j(not_zero, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5651 | __ movmskpd(result_reg, input_reg); |
| 5652 | // Bit 0 contains the sign of the double in input_reg. |
| 5653 | // If input was positive, we are ok and return 0, otherwise |
| 5654 | // deoptimize. |
| 5655 | __ and_(result_reg, 1); |
| 5656 | DeoptimizeIf(not_zero, instr->environment()); |
| 5657 | } |
| 5658 | __ bind(&done); |
| 5659 | } |
| 5660 | } |
| 5661 | |
| 5662 | |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5663 | void LCodeGen::DoDoubleToSmi(LDoubleToSmi* instr) { |
| 5664 | LOperand* input = instr->value(); |
| 5665 | ASSERT(input->IsDoubleRegister()); |
| 5666 | LOperand* result = instr->result(); |
| 5667 | ASSERT(result->IsRegister()); |
| 5668 | CpuFeatureScope scope(masm(), SSE2); |
| 5669 | |
| 5670 | XMMRegister input_reg = ToDoubleRegister(input); |
| 5671 | Register result_reg = ToRegister(result); |
| 5672 | |
| 5673 | Label done; |
| 5674 | __ cvttsd2si(result_reg, Operand(input_reg)); |
| 5675 | __ cvtsi2sd(xmm0, Operand(result_reg)); |
| 5676 | __ ucomisd(xmm0, input_reg); |
| 5677 | DeoptimizeIf(not_equal, instr->environment()); |
| 5678 | DeoptimizeIf(parity_even, instr->environment()); // NaN. |
| 5679 | |
| 5680 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 5681 | // The integer converted back is equal to the original. We |
| 5682 | // only have to test if we got -0 as an input. |
| 5683 | __ test(result_reg, Operand(result_reg)); |
| 5684 | __ j(not_zero, &done, Label::kNear); |
| 5685 | __ movmskpd(result_reg, input_reg); |
| 5686 | // Bit 0 contains the sign of the double in input_reg. |
| 5687 | // If input was positive, we are ok and return 0, otherwise |
| 5688 | // deoptimize. |
| 5689 | __ and_(result_reg, 1); |
| 5690 | DeoptimizeIf(not_zero, instr->environment()); |
| 5691 | __ bind(&done); |
| 5692 | } |
| 5693 | __ SmiTag(result_reg); |
| 5694 | DeoptimizeIf(overflow, instr->environment()); |
| 5695 | } |
| 5696 | |
| 5697 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5698 | void LCodeGen::DoCheckSmi(LCheckSmi* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5699 | LOperand* input = instr->value(); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 5700 | __ test(ToOperand(input), Immediate(kSmiTagMask)); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 5701 | DeoptimizeIf(not_zero, instr->environment()); |
| 5702 | } |
| 5703 | |
| 5704 | |
| 5705 | void LCodeGen::DoCheckNonSmi(LCheckNonSmi* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5706 | LOperand* input = instr->value(); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 5707 | __ test(ToOperand(input), Immediate(kSmiTagMask)); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 5708 | DeoptimizeIf(zero, instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5709 | } |
| 5710 | |
| 5711 | |
| 5712 | void LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5713 | Register input = ToRegister(instr->value()); |
| 5714 | Register temp = ToRegister(instr->temp()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5715 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5716 | __ mov(temp, FieldOperand(input, HeapObject::kMapOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5717 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5718 | if (instr->hydrogen()->is_interval_check()) { |
| 5719 | InstanceType first; |
| 5720 | InstanceType last; |
| 5721 | instr->hydrogen()->GetCheckInterval(&first, &last); |
| 5722 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 5723 | __ cmpb(FieldOperand(temp, Map::kInstanceTypeOffset), |
| 5724 | static_cast<int8_t>(first)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5725 | |
| 5726 | // If there is only one type in the interval check for equality. |
| 5727 | if (first == last) { |
| 5728 | DeoptimizeIf(not_equal, instr->environment()); |
| 5729 | } else { |
| 5730 | DeoptimizeIf(below, instr->environment()); |
| 5731 | // Omit check for the last type. |
| 5732 | if (last != LAST_TYPE) { |
| 5733 | __ cmpb(FieldOperand(temp, Map::kInstanceTypeOffset), |
| 5734 | static_cast<int8_t>(last)); |
| 5735 | DeoptimizeIf(above, instr->environment()); |
| 5736 | } |
| 5737 | } |
| 5738 | } else { |
| 5739 | uint8_t mask; |
| 5740 | uint8_t tag; |
| 5741 | instr->hydrogen()->GetCheckMaskAndTag(&mask, &tag); |
| 5742 | |
| 5743 | if (IsPowerOf2(mask)) { |
| 5744 | ASSERT(tag == 0 || IsPowerOf2(tag)); |
| 5745 | __ test_b(FieldOperand(temp, Map::kInstanceTypeOffset), mask); |
| 5746 | DeoptimizeIf(tag == 0 ? not_zero : zero, instr->environment()); |
| 5747 | } else { |
| 5748 | __ movzx_b(temp, FieldOperand(temp, Map::kInstanceTypeOffset)); |
| 5749 | __ and_(temp, mask); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 5750 | __ cmp(temp, tag); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5751 | DeoptimizeIf(not_equal, instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5752 | } |
| 5753 | } |
| 5754 | } |
| 5755 | |
| 5756 | |
| 5757 | void LCodeGen::DoCheckFunction(LCheckFunction* instr) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5758 | Handle<JSFunction> target = instr->hydrogen()->target(); |
yangguo@chromium.org | 003650e | 2013-01-24 16:31:08 +0000 | [diff] [blame] | 5759 | if (instr->hydrogen()->target_in_new_space()) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5760 | Register reg = ToRegister(instr->value()); |
| 5761 | Handle<JSGlobalPropertyCell> cell = |
| 5762 | isolate()->factory()->NewJSGlobalPropertyCell(target); |
| 5763 | __ cmp(reg, Operand::Cell(cell)); |
| 5764 | } else { |
| 5765 | Operand operand = ToOperand(instr->value()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 5766 | __ cmp(operand, target); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5767 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5768 | DeoptimizeIf(not_equal, instr->environment()); |
| 5769 | } |
| 5770 | |
| 5771 | |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 5772 | void LCodeGen::DoCheckMapCommon(Register reg, |
| 5773 | Handle<Map> map, |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5774 | LInstruction* instr) { |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 5775 | Label success; |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5776 | __ CompareMap(reg, map, &success); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5777 | DeoptimizeIf(not_equal, instr->environment()); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 5778 | __ bind(&success); |
| 5779 | } |
| 5780 | |
| 5781 | |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 5782 | void LCodeGen::DoCheckMaps(LCheckMaps* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5783 | LOperand* input = instr->value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5784 | ASSERT(input->IsRegister()); |
| 5785 | Register reg = ToRegister(input); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 5786 | |
| 5787 | Label success; |
| 5788 | SmallMapList* map_set = instr->hydrogen()->map_set(); |
| 5789 | for (int i = 0; i < map_set->length() - 1; i++) { |
| 5790 | Handle<Map> map = map_set->at(i); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5791 | __ CompareMap(reg, map, &success); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 5792 | __ j(equal, &success); |
| 5793 | } |
| 5794 | Handle<Map> map = map_set->last(); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5795 | DoCheckMapCommon(reg, map, instr); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 5796 | __ bind(&success); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5797 | } |
| 5798 | |
| 5799 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5800 | void LCodeGen::DoClampDToUint8(LClampDToUint8* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5801 | CpuFeatureScope scope(masm(), SSE2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5802 | XMMRegister value_reg = ToDoubleRegister(instr->unclamped()); |
| 5803 | Register result_reg = ToRegister(instr->result()); |
| 5804 | __ ClampDoubleToUint8(value_reg, xmm0, result_reg); |
| 5805 | } |
| 5806 | |
| 5807 | |
| 5808 | void LCodeGen::DoClampIToUint8(LClampIToUint8* instr) { |
| 5809 | ASSERT(instr->unclamped()->Equals(instr->result())); |
| 5810 | Register value_reg = ToRegister(instr->result()); |
| 5811 | __ ClampUint8(value_reg); |
| 5812 | } |
| 5813 | |
| 5814 | |
| 5815 | void LCodeGen::DoClampTToUint8(LClampTToUint8* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5816 | CpuFeatureScope scope(masm(), SSE2); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5817 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5818 | ASSERT(instr->unclamped()->Equals(instr->result())); |
| 5819 | Register input_reg = ToRegister(instr->unclamped()); |
| 5820 | Label is_smi, done, heap_number; |
| 5821 | |
| 5822 | __ JumpIfSmi(input_reg, &is_smi); |
| 5823 | |
| 5824 | // Check for heap number |
| 5825 | __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
| 5826 | factory()->heap_number_map()); |
| 5827 | __ j(equal, &heap_number, Label::kNear); |
| 5828 | |
| 5829 | // Check for undefined. Undefined is converted to zero for clamping |
| 5830 | // conversions. |
| 5831 | __ cmp(input_reg, factory()->undefined_value()); |
| 5832 | DeoptimizeIf(not_equal, instr->environment()); |
| 5833 | __ mov(input_reg, 0); |
| 5834 | __ jmp(&done, Label::kNear); |
| 5835 | |
| 5836 | // Heap number |
| 5837 | __ bind(&heap_number); |
| 5838 | __ movdbl(xmm0, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 5839 | __ ClampDoubleToUint8(xmm0, xmm1, input_reg); |
| 5840 | __ jmp(&done, Label::kNear); |
| 5841 | |
| 5842 | // smi |
| 5843 | __ bind(&is_smi); |
| 5844 | __ SmiUntag(input_reg); |
| 5845 | __ ClampUint8(input_reg); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5846 | __ bind(&done); |
| 5847 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5848 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5849 | |
| 5850 | void LCodeGen::DoClampTToUint8NoSSE2(LClampTToUint8NoSSE2* instr) { |
| 5851 | Register input_reg = ToRegister(instr->unclamped()); |
| 5852 | Register result_reg = ToRegister(instr->result()); |
| 5853 | Register scratch = ToRegister(instr->scratch()); |
| 5854 | Register scratch2 = ToRegister(instr->scratch2()); |
| 5855 | Register scratch3 = ToRegister(instr->scratch3()); |
| 5856 | Label is_smi, done, heap_number, valid_exponent, |
| 5857 | largest_value, zero_result, maybe_nan_or_infinity; |
| 5858 | |
| 5859 | __ JumpIfSmi(input_reg, &is_smi); |
| 5860 | |
| 5861 | // Check for heap number |
| 5862 | __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
| 5863 | factory()->heap_number_map()); |
| 5864 | __ j(equal, &heap_number, Label::kFar); |
| 5865 | |
| 5866 | // Check for undefined. Undefined is converted to zero for clamping |
| 5867 | // conversions. |
| 5868 | __ cmp(input_reg, factory()->undefined_value()); |
| 5869 | DeoptimizeIf(not_equal, instr->environment()); |
| 5870 | __ jmp(&zero_result); |
| 5871 | |
| 5872 | // Heap number |
| 5873 | __ bind(&heap_number); |
| 5874 | |
| 5875 | // Surprisingly, all of the hand-crafted bit-manipulations below are much |
| 5876 | // faster than the x86 FPU built-in instruction, especially since "banker's |
| 5877 | // rounding" would be additionally very expensive |
| 5878 | |
| 5879 | // Get exponent word. |
| 5880 | __ mov(scratch, FieldOperand(input_reg, HeapNumber::kExponentOffset)); |
| 5881 | __ mov(scratch3, FieldOperand(input_reg, HeapNumber::kMantissaOffset)); |
| 5882 | |
| 5883 | // Test for negative values --> clamp to zero |
| 5884 | __ test(scratch, scratch); |
| 5885 | __ j(negative, &zero_result); |
| 5886 | |
| 5887 | // Get exponent alone in scratch2. |
| 5888 | __ mov(scratch2, scratch); |
| 5889 | __ and_(scratch2, HeapNumber::kExponentMask); |
| 5890 | __ shr(scratch2, HeapNumber::kExponentShift); |
| 5891 | __ j(zero, &zero_result); |
| 5892 | __ sub(scratch2, Immediate(HeapNumber::kExponentBias - 1)); |
| 5893 | __ j(negative, &zero_result); |
| 5894 | |
| 5895 | const uint32_t non_int8_exponent = 7; |
| 5896 | __ cmp(scratch2, Immediate(non_int8_exponent + 1)); |
| 5897 | // If the exponent is too big, check for special values. |
| 5898 | __ j(greater, &maybe_nan_or_infinity, Label::kNear); |
| 5899 | |
| 5900 | __ bind(&valid_exponent); |
| 5901 | // Exponent word in scratch, exponent in scratch2. We know that 0 <= exponent |
| 5902 | // < 7. The shift bias is the number of bits to shift the mantissa such that |
| 5903 | // with an exponent of 7 such the that top-most one is in bit 30, allowing |
| 5904 | // detection the rounding overflow of a 255.5 to 256 (bit 31 goes from 0 to |
| 5905 | // 1). |
| 5906 | int shift_bias = (30 - HeapNumber::kExponentShift) - 7 - 1; |
| 5907 | __ lea(result_reg, MemOperand(scratch2, shift_bias)); |
| 5908 | // Here result_reg (ecx) is the shift, scratch is the exponent word. Get the |
| 5909 | // top bits of the mantissa. |
| 5910 | __ and_(scratch, HeapNumber::kMantissaMask); |
| 5911 | // Put back the implicit 1 of the mantissa |
| 5912 | __ or_(scratch, 1 << HeapNumber::kExponentShift); |
| 5913 | // Shift up to round |
| 5914 | __ shl_cl(scratch); |
| 5915 | // Use "banker's rounding" to spec: If fractional part of number is 0.5, then |
| 5916 | // use the bit in the "ones" place and add it to the "halves" place, which has |
| 5917 | // the effect of rounding to even. |
| 5918 | __ mov(scratch2, scratch); |
| 5919 | const uint32_t one_half_bit_shift = 30 - sizeof(uint8_t) * 8; |
| 5920 | const uint32_t one_bit_shift = one_half_bit_shift + 1; |
| 5921 | __ and_(scratch2, Immediate((1 << one_bit_shift) - 1)); |
| 5922 | __ cmp(scratch2, Immediate(1 << one_half_bit_shift)); |
| 5923 | Label no_round; |
| 5924 | __ j(less, &no_round); |
| 5925 | Label round_up; |
| 5926 | __ mov(scratch2, Immediate(1 << one_half_bit_shift)); |
| 5927 | __ j(greater, &round_up); |
| 5928 | __ test(scratch3, scratch3); |
| 5929 | __ j(not_zero, &round_up); |
| 5930 | __ mov(scratch2, scratch); |
| 5931 | __ and_(scratch2, Immediate(1 << one_bit_shift)); |
| 5932 | __ shr(scratch2, 1); |
| 5933 | __ bind(&round_up); |
| 5934 | __ add(scratch, scratch2); |
| 5935 | __ j(overflow, &largest_value); |
| 5936 | __ bind(&no_round); |
| 5937 | __ shr(scratch, 23); |
| 5938 | __ mov(result_reg, scratch); |
| 5939 | __ jmp(&done, Label::kNear); |
| 5940 | |
| 5941 | __ bind(&maybe_nan_or_infinity); |
| 5942 | // Check for NaN/Infinity, all other values map to 255 |
| 5943 | __ cmp(scratch2, Immediate(HeapNumber::kInfinityOrNanExponent + 1)); |
| 5944 | __ j(not_equal, &largest_value, Label::kNear); |
| 5945 | |
| 5946 | // Check for NaN, which differs from Infinity in that at least one mantissa |
| 5947 | // bit is set. |
| 5948 | __ and_(scratch, HeapNumber::kMantissaMask); |
| 5949 | __ or_(scratch, FieldOperand(input_reg, HeapNumber::kMantissaOffset)); |
| 5950 | __ j(not_zero, &zero_result); // M!=0 --> NaN |
| 5951 | // Infinity -> Fall through to map to 255. |
| 5952 | |
| 5953 | __ bind(&largest_value); |
| 5954 | __ mov(result_reg, Immediate(255)); |
| 5955 | __ jmp(&done, Label::kNear); |
| 5956 | |
| 5957 | __ bind(&zero_result); |
| 5958 | __ xor_(result_reg, result_reg); |
| 5959 | __ jmp(&done); |
| 5960 | |
| 5961 | // smi |
| 5962 | __ bind(&is_smi); |
| 5963 | if (!input_reg.is(result_reg)) { |
| 5964 | __ mov(result_reg, input_reg); |
| 5965 | } |
| 5966 | __ SmiUntag(result_reg); |
| 5967 | __ ClampUint8(result_reg); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5968 | __ bind(&done); |
| 5969 | } |
| 5970 | |
| 5971 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5972 | void LCodeGen::DoCheckPrototypeMaps(LCheckPrototypeMaps* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 5973 | Register reg = ToRegister(instr->temp()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5974 | |
mvstanton@chromium.org | 6bec009 | 2013-01-23 13:46:53 +0000 | [diff] [blame] | 5975 | ZoneList<Handle<JSObject> >* prototypes = instr->prototypes(); |
| 5976 | ZoneList<Handle<Map> >* maps = instr->maps(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5977 | |
mvstanton@chromium.org | 6bec009 | 2013-01-23 13:46:53 +0000 | [diff] [blame] | 5978 | ASSERT(prototypes->length() == maps->length()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5979 | |
danno@chromium.org | 1fd77d5 | 2013-06-07 16:01:45 +0000 | [diff] [blame] | 5980 | if (!instr->hydrogen()->CanOmitPrototypeChecks()) { |
ulan@chromium.org | 2e04b58 | 2013-02-21 14:06:02 +0000 | [diff] [blame] | 5981 | for (int i = 0; i < prototypes->length(); i++) { |
| 5982 | __ LoadHeapObject(reg, prototypes->at(i)); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5983 | DoCheckMapCommon(reg, maps->at(i), instr); |
ulan@chromium.org | 2e04b58 | 2013-02-21 14:06:02 +0000 | [diff] [blame] | 5984 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5985 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5986 | } |
| 5987 | |
| 5988 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5989 | void LCodeGen::DoAllocate(LAllocate* instr) { |
| 5990 | class DeferredAllocate: public LDeferredCode { |
| 5991 | public: |
| 5992 | DeferredAllocate(LCodeGen* codegen, LAllocate* instr) |
| 5993 | : LDeferredCode(codegen), instr_(instr) { } |
| 5994 | virtual void Generate() { codegen()->DoDeferredAllocate(instr_); } |
| 5995 | virtual LInstruction* instr() { return instr_; } |
| 5996 | private: |
| 5997 | LAllocate* instr_; |
| 5998 | }; |
| 5999 | |
| 6000 | DeferredAllocate* deferred = |
| 6001 | new(zone()) DeferredAllocate(this, instr); |
| 6002 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 6003 | Register result = ToRegister(instr->result()); |
| 6004 | Register temp = ToRegister(instr->temp()); |
| 6005 | |
mstarzinger@chromium.org | 71fc346 | 2013-02-27 09:34:27 +0000 | [diff] [blame] | 6006 | // Allocate memory for the object. |
| 6007 | AllocationFlags flags = TAG_OBJECT; |
| 6008 | if (instr->hydrogen()->MustAllocateDoubleAligned()) { |
| 6009 | flags = static_cast<AllocationFlags>(flags | DOUBLE_ALIGNMENT); |
| 6010 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 6011 | if (instr->hydrogen()->CanAllocateInOldPointerSpace()) { |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 6012 | ASSERT(!instr->hydrogen()->CanAllocateInOldDataSpace()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 6013 | flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_POINTER_SPACE); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 6014 | } else if (instr->hydrogen()->CanAllocateInOldDataSpace()) { |
| 6015 | flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_DATA_SPACE); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 6016 | } |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 6017 | |
mstarzinger@chromium.org | 71fc346 | 2013-02-27 09:34:27 +0000 | [diff] [blame] | 6018 | if (instr->size()->IsConstantOperand()) { |
| 6019 | int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 6020 | __ Allocate(size, result, temp, no_reg, deferred->entry(), flags); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 6021 | } else { |
mstarzinger@chromium.org | 71fc346 | 2013-02-27 09:34:27 +0000 | [diff] [blame] | 6022 | Register size = ToRegister(instr->size()); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 6023 | __ Allocate(size, result, temp, no_reg, deferred->entry(), flags); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 6024 | } |
| 6025 | |
| 6026 | __ bind(deferred->exit()); |
| 6027 | } |
| 6028 | |
| 6029 | |
| 6030 | void LCodeGen::DoDeferredAllocate(LAllocate* instr) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 6031 | Register result = ToRegister(instr->result()); |
| 6032 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 6033 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 6034 | // result register contain a valid pointer because it is already |
| 6035 | // contained in the register pointer map. |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 6036 | __ mov(result, Immediate(Smi::FromInt(0))); |
| 6037 | |
| 6038 | PushSafepointRegistersScope scope(this); |
| 6039 | if (instr->size()->IsRegister()) { |
| 6040 | Register size = ToRegister(instr->size()); |
| 6041 | ASSERT(!size.is(result)); |
| 6042 | __ SmiTag(ToRegister(instr->size())); |
| 6043 | __ push(size); |
| 6044 | } else { |
| 6045 | int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); |
| 6046 | __ push(Immediate(Smi::FromInt(size))); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 6047 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 6048 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 6049 | if (instr->hydrogen()->CanAllocateInOldPointerSpace()) { |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 6050 | ASSERT(!instr->hydrogen()->CanAllocateInOldDataSpace()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 6051 | CallRuntimeFromDeferred( |
| 6052 | Runtime::kAllocateInOldPointerSpace, 1, instr, instr->context()); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 6053 | } else if (instr->hydrogen()->CanAllocateInOldDataSpace()) { |
| 6054 | CallRuntimeFromDeferred( |
| 6055 | Runtime::kAllocateInOldDataSpace, 1, instr, instr->context()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 6056 | } else { |
| 6057 | CallRuntimeFromDeferred( |
| 6058 | Runtime::kAllocateInNewSpace, 1, instr, instr->context()); |
| 6059 | } |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 6060 | __ StoreToSafepointRegisterSlot(result, eax); |
| 6061 | } |
| 6062 | |
| 6063 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6064 | void LCodeGen::DoToFastProperties(LToFastProperties* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 6065 | ASSERT(ToRegister(instr->value()).is(eax)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6066 | __ push(eax); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 6067 | CallRuntime(Runtime::kToFastProperties, 1, instr); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6068 | } |
| 6069 | |
| 6070 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6071 | void LCodeGen::DoRegExpLiteral(LRegExpLiteral* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 6072 | ASSERT(ToRegister(instr->context()).is(esi)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 6073 | Label materialized; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6074 | // Registers will be used as follows: |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6075 | // ecx = literals array. |
| 6076 | // ebx = regexp literal. |
| 6077 | // eax = regexp literal clone. |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 6078 | // esi = context. |
yangguo@chromium.org | 9c741c8 | 2012-06-28 15:04:22 +0000 | [diff] [blame] | 6079 | int literal_offset = |
| 6080 | FixedArray::OffsetOfElementAt(instr->hydrogen()->literal_index()); |
| 6081 | __ LoadHeapObject(ecx, instr->hydrogen()->literals()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6082 | __ mov(ebx, FieldOperand(ecx, literal_offset)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6083 | __ cmp(ebx, factory()->undefined_value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 6084 | __ j(not_equal, &materialized, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6085 | |
| 6086 | // Create regexp literal using runtime function |
| 6087 | // Result will be in eax. |
| 6088 | __ push(ecx); |
| 6089 | __ push(Immediate(Smi::FromInt(instr->hydrogen()->literal_index()))); |
| 6090 | __ push(Immediate(instr->hydrogen()->pattern())); |
| 6091 | __ push(Immediate(instr->hydrogen()->flags())); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 6092 | CallRuntime(Runtime::kMaterializeRegExpLiteral, 4, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6093 | __ mov(ebx, eax); |
| 6094 | |
| 6095 | __ bind(&materialized); |
| 6096 | int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize; |
| 6097 | Label allocated, runtime_allocate; |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 6098 | __ Allocate(size, eax, ecx, edx, &runtime_allocate, TAG_OBJECT); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6099 | __ jmp(&allocated); |
| 6100 | |
| 6101 | __ bind(&runtime_allocate); |
| 6102 | __ push(ebx); |
| 6103 | __ push(Immediate(Smi::FromInt(size))); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 6104 | CallRuntime(Runtime::kAllocateInNewSpace, 1, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6105 | __ pop(ebx); |
| 6106 | |
| 6107 | __ bind(&allocated); |
| 6108 | // Copy the content into the newly allocated memory. |
| 6109 | // (Unroll copy loop once for better throughput). |
| 6110 | for (int i = 0; i < size - kPointerSize; i += 2 * kPointerSize) { |
| 6111 | __ mov(edx, FieldOperand(ebx, i)); |
| 6112 | __ mov(ecx, FieldOperand(ebx, i + kPointerSize)); |
| 6113 | __ mov(FieldOperand(eax, i), edx); |
| 6114 | __ mov(FieldOperand(eax, i + kPointerSize), ecx); |
| 6115 | } |
| 6116 | if ((size % (2 * kPointerSize)) != 0) { |
| 6117 | __ mov(edx, FieldOperand(ebx, size - kPointerSize)); |
| 6118 | __ mov(FieldOperand(eax, size - kPointerSize), edx); |
| 6119 | } |
| 6120 | } |
| 6121 | |
| 6122 | |
| 6123 | void LCodeGen::DoFunctionLiteral(LFunctionLiteral* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 6124 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6125 | // Use the fast case closure allocation code that allocates in new |
| 6126 | // space for nested functions that don't need literals cloning. |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 6127 | bool pretenure = instr->hydrogen()->pretenure(); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 6128 | if (!pretenure && instr->hydrogen()->has_no_literals()) { |
| 6129 | FastNewClosureStub stub(instr->hydrogen()->language_mode(), |
| 6130 | instr->hydrogen()->is_generator()); |
| 6131 | __ push(Immediate(instr->hydrogen()->shared_info())); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 6132 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6133 | } else { |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 6134 | __ push(esi); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 6135 | __ push(Immediate(instr->hydrogen()->shared_info())); |
| 6136 | __ push(Immediate(pretenure ? factory()->true_value() |
| 6137 | : factory()->false_value())); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 6138 | CallRuntime(Runtime::kNewClosure, 3, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6139 | } |
| 6140 | } |
| 6141 | |
| 6142 | |
| 6143 | void LCodeGen::DoTypeof(LTypeof* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 6144 | LOperand* input = instr->value(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 6145 | EmitPushTaggedOperand(input); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 6146 | CallRuntime(Runtime::kTypeof, 1, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6147 | } |
| 6148 | |
| 6149 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6150 | void LCodeGen::DoTypeofIsAndBranch(LTypeofIsAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 6151 | Register input = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6152 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 6153 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 6154 | Label* true_label = chunk_->GetAssemblyLabel(true_block); |
| 6155 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 6156 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 6157 | Condition final_branch_condition = |
| 6158 | EmitTypeofIs(true_label, false_label, input, instr->type_literal()); |
| 6159 | if (final_branch_condition != no_condition) { |
| 6160 | EmitBranch(true_block, false_block, final_branch_condition); |
| 6161 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6162 | } |
| 6163 | |
| 6164 | |
| 6165 | Condition LCodeGen::EmitTypeofIs(Label* true_label, |
| 6166 | Label* false_label, |
| 6167 | Register input, |
| 6168 | Handle<String> type_name) { |
| 6169 | Condition final_branch_condition = no_condition; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6170 | if (type_name->Equals(heap()->number_string())) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 6171 | __ JumpIfSmi(input, true_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6172 | __ cmp(FieldOperand(input, HeapObject::kMapOffset), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6173 | factory()->heap_number_map()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6174 | final_branch_condition = equal; |
| 6175 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6176 | } else if (type_name->Equals(heap()->string_string())) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 6177 | __ JumpIfSmi(input, false_label); |
| 6178 | __ CmpObjectType(input, FIRST_NONSTRING_TYPE, input); |
| 6179 | __ j(above_equal, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6180 | __ test_b(FieldOperand(input, Map::kBitFieldOffset), |
| 6181 | 1 << Map::kIsUndetectable); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 6182 | final_branch_condition = zero; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6183 | |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 6184 | } else if (type_name->Equals(heap()->symbol_string())) { |
| 6185 | __ JumpIfSmi(input, false_label); |
| 6186 | __ CmpObjectType(input, SYMBOL_TYPE, input); |
| 6187 | final_branch_condition = equal; |
| 6188 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6189 | } else if (type_name->Equals(heap()->boolean_string())) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6190 | __ cmp(input, factory()->true_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6191 | __ j(equal, true_label); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6192 | __ cmp(input, factory()->false_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6193 | final_branch_condition = equal; |
| 6194 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6195 | } else if (FLAG_harmony_typeof && type_name->Equals(heap()->null_string())) { |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 6196 | __ cmp(input, factory()->null_value()); |
| 6197 | final_branch_condition = equal; |
| 6198 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6199 | } else if (type_name->Equals(heap()->undefined_string())) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6200 | __ cmp(input, factory()->undefined_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6201 | __ j(equal, true_label); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 6202 | __ JumpIfSmi(input, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6203 | // Check for undetectable objects => true. |
| 6204 | __ mov(input, FieldOperand(input, HeapObject::kMapOffset)); |
| 6205 | __ test_b(FieldOperand(input, Map::kBitFieldOffset), |
| 6206 | 1 << Map::kIsUndetectable); |
| 6207 | final_branch_condition = not_zero; |
| 6208 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6209 | } else if (type_name->Equals(heap()->function_string())) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 6210 | STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 6211 | __ JumpIfSmi(input, false_label); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 6212 | __ CmpObjectType(input, JS_FUNCTION_TYPE, input); |
| 6213 | __ j(equal, true_label); |
| 6214 | __ CmpInstanceType(input, JS_FUNCTION_PROXY_TYPE); |
| 6215 | final_branch_condition = equal; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6216 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6217 | } else if (type_name->Equals(heap()->object_string())) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 6218 | __ JumpIfSmi(input, false_label); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 6219 | if (!FLAG_harmony_typeof) { |
| 6220 | __ cmp(input, factory()->null_value()); |
| 6221 | __ j(equal, true_label); |
| 6222 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 6223 | __ CmpObjectType(input, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE, input); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 6224 | __ j(below, false_label); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 6225 | __ CmpInstanceType(input, LAST_NONCALLABLE_SPEC_OBJECT_TYPE); |
| 6226 | __ j(above, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6227 | // Check for undetectable objects => false. |
| 6228 | __ test_b(FieldOperand(input, Map::kBitFieldOffset), |
| 6229 | 1 << Map::kIsUndetectable); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 6230 | final_branch_condition = zero; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6231 | |
| 6232 | } else { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6233 | __ jmp(false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6234 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6235 | return final_branch_condition; |
| 6236 | } |
| 6237 | |
| 6238 | |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 6239 | void LCodeGen::DoIsConstructCallAndBranch(LIsConstructCallAndBranch* instr) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 6240 | Register temp = ToRegister(instr->temp()); |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 6241 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 6242 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 6243 | |
| 6244 | EmitIsConstructCall(temp); |
| 6245 | EmitBranch(true_block, false_block, equal); |
| 6246 | } |
| 6247 | |
| 6248 | |
| 6249 | void LCodeGen::EmitIsConstructCall(Register temp) { |
| 6250 | // Get the frame pointer for the calling frame. |
| 6251 | __ mov(temp, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
| 6252 | |
| 6253 | // Skip the arguments adaptor frame if it exists. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 6254 | Label check_frame_marker; |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 6255 | __ cmp(Operand(temp, StandardFrameConstants::kContextOffset), |
| 6256 | Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 6257 | __ j(not_equal, &check_frame_marker, Label::kNear); |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 6258 | __ mov(temp, Operand(temp, StandardFrameConstants::kCallerFPOffset)); |
| 6259 | |
| 6260 | // Check the marker in the calling frame. |
| 6261 | __ bind(&check_frame_marker); |
| 6262 | __ cmp(Operand(temp, StandardFrameConstants::kMarkerOffset), |
| 6263 | Immediate(Smi::FromInt(StackFrame::CONSTRUCT))); |
| 6264 | } |
| 6265 | |
| 6266 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6267 | void LCodeGen::EnsureSpaceForLazyDeopt() { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 6268 | if (!info()->IsStub()) { |
| 6269 | // Ensure that we have enough space after the previous lazy-bailout |
| 6270 | // instruction for patching the code here. |
| 6271 | int current_pc = masm()->pc_offset(); |
| 6272 | int patch_size = Deoptimizer::patch_size(); |
| 6273 | if (current_pc < last_lazy_deopt_pc_ + patch_size) { |
| 6274 | int padding_size = last_lazy_deopt_pc_ + patch_size - current_pc; |
| 6275 | __ Nop(padding_size); |
| 6276 | } |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6277 | } |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 6278 | last_lazy_deopt_pc_ = masm()->pc_offset(); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6279 | } |
| 6280 | |
| 6281 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6282 | void LCodeGen::DoLazyBailout(LLazyBailout* instr) { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6283 | EnsureSpaceForLazyDeopt(); |
| 6284 | ASSERT(instr->HasEnvironment()); |
| 6285 | LEnvironment* env = instr->environment(); |
| 6286 | RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
| 6287 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6288 | } |
| 6289 | |
| 6290 | |
| 6291 | void LCodeGen::DoDeoptimize(LDeoptimize* instr) { |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 6292 | if (instr->hydrogen_value()->IsSoftDeoptimize()) { |
| 6293 | SoftDeoptimize(instr->environment()); |
| 6294 | } else { |
| 6295 | DeoptimizeIf(no_condition, instr->environment()); |
| 6296 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6297 | } |
| 6298 | |
| 6299 | |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 6300 | void LCodeGen::DoDummyUse(LDummyUse* instr) { |
| 6301 | // Nothing to see here, move on! |
| 6302 | } |
| 6303 | |
| 6304 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6305 | void LCodeGen::DoDeleteProperty(LDeleteProperty* instr) { |
| 6306 | LOperand* obj = instr->object(); |
| 6307 | LOperand* key = instr->key(); |
| 6308 | __ push(ToOperand(obj)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 6309 | EmitPushTaggedOperand(key); |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 6310 | ASSERT(instr->HasPointerMap()); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 6311 | LPointerMap* pointers = instr->pointer_map(); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 6312 | RecordPosition(pointers->position()); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 6313 | // Create safepoint generator that will also ensure enough space in the |
| 6314 | // reloc info for patching in deoptimization (since this is invoking a |
| 6315 | // builtin) |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6316 | SafepointGenerator safepoint_generator( |
| 6317 | this, pointers, Safepoint::kLazyDeopt); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 6318 | __ push(Immediate(Smi::FromInt(strict_mode_flag()))); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 6319 | __ InvokeBuiltin(Builtins::DELETE, CALL_FUNCTION, safepoint_generator); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6320 | } |
| 6321 | |
| 6322 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6323 | void LCodeGen::DoDeferredStackCheck(LStackCheck* instr) { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6324 | PushSafepointRegistersScope scope(this); |
| 6325 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 6326 | __ CallRuntimeSaveDoubles(Runtime::kStackGuard); |
| 6327 | RecordSafepointWithLazyDeopt( |
| 6328 | instr, RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); |
| 6329 | ASSERT(instr->HasEnvironment()); |
| 6330 | LEnvironment* env = instr->environment(); |
| 6331 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6332 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6333 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6334 | |
| 6335 | void LCodeGen::DoStackCheck(LStackCheck* instr) { |
| 6336 | class DeferredStackCheck: public LDeferredCode { |
| 6337 | public: |
| 6338 | DeferredStackCheck(LCodeGen* codegen, LStackCheck* instr) |
| 6339 | : LDeferredCode(codegen), instr_(instr) { } |
| 6340 | virtual void Generate() { codegen()->DoDeferredStackCheck(instr_); } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 6341 | virtual LInstruction* instr() { return instr_; } |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6342 | private: |
| 6343 | LStackCheck* instr_; |
| 6344 | }; |
| 6345 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6346 | ASSERT(instr->HasEnvironment()); |
| 6347 | LEnvironment* env = instr->environment(); |
| 6348 | // There is no LLazyBailout instruction for stack-checks. We have to |
| 6349 | // prepare for lazy deoptimization explicitly here. |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6350 | if (instr->hydrogen()->is_function_entry()) { |
| 6351 | // Perform stack overflow check. |
| 6352 | Label done; |
| 6353 | ExternalReference stack_limit = |
| 6354 | ExternalReference::address_of_stack_limit(isolate()); |
| 6355 | __ cmp(esp, Operand::StaticVariable(stack_limit)); |
| 6356 | __ j(above_equal, &done, Label::kNear); |
| 6357 | |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 6358 | ASSERT(instr->context()->IsRegister()); |
| 6359 | ASSERT(ToRegister(instr->context()).is(esi)); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6360 | StackCheckStub stub; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 6361 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6362 | EnsureSpaceForLazyDeopt(); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6363 | __ bind(&done); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6364 | RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
| 6365 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6366 | } else { |
| 6367 | ASSERT(instr->hydrogen()->is_backwards_branch()); |
| 6368 | // Perform stack overflow check if this goto needs it before jumping. |
| 6369 | DeferredStackCheck* deferred_stack_check = |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 6370 | new(zone()) DeferredStackCheck(this, instr); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6371 | ExternalReference stack_limit = |
| 6372 | ExternalReference::address_of_stack_limit(isolate()); |
| 6373 | __ cmp(esp, Operand::StaticVariable(stack_limit)); |
| 6374 | __ j(below, deferred_stack_check->entry()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6375 | EnsureSpaceForLazyDeopt(); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6376 | __ bind(instr->done_label()); |
| 6377 | deferred_stack_check->SetExit(instr->done_label()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6378 | RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
| 6379 | // Don't record a deoptimization index for the safepoint here. |
| 6380 | // This will be done explicitly when emitting call and the safepoint in |
| 6381 | // the deferred code. |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6382 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6383 | } |
| 6384 | |
| 6385 | |
| 6386 | void LCodeGen::DoOsrEntry(LOsrEntry* instr) { |
| 6387 | // This is a pseudo-instruction that ensures that the environment here is |
| 6388 | // properly registered for deoptimization and records the assembler's PC |
| 6389 | // offset. |
| 6390 | LEnvironment* environment = instr->environment(); |
| 6391 | environment->SetSpilledRegisters(instr->SpilledRegisterArray(), |
| 6392 | instr->SpilledDoubleRegisterArray()); |
| 6393 | |
| 6394 | // If the environment were already registered, we would have no way of |
| 6395 | // backpatching it with the spill slot operands. |
| 6396 | ASSERT(!environment->HasBeenRegistered()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6397 | RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6398 | ASSERT(osr_pc_offset_ == -1); |
| 6399 | osr_pc_offset_ = masm()->pc_offset(); |
| 6400 | } |
| 6401 | |
| 6402 | |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 6403 | void LCodeGen::DoIn(LIn* instr) { |
| 6404 | LOperand* obj = instr->object(); |
| 6405 | LOperand* key = instr->key(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 6406 | EmitPushTaggedOperand(key); |
| 6407 | EmitPushTaggedOperand(obj); |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 6408 | ASSERT(instr->HasPointerMap()); |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 6409 | LPointerMap* pointers = instr->pointer_map(); |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 6410 | RecordPosition(pointers->position()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 6411 | SafepointGenerator safepoint_generator( |
| 6412 | this, pointers, Safepoint::kLazyDeopt); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 6413 | __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator); |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 6414 | } |
| 6415 | |
| 6416 | |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 6417 | void LCodeGen::DoForInPrepareMap(LForInPrepareMap* instr) { |
| 6418 | __ cmp(eax, isolate()->factory()->undefined_value()); |
| 6419 | DeoptimizeIf(equal, instr->environment()); |
| 6420 | |
| 6421 | __ cmp(eax, isolate()->factory()->null_value()); |
| 6422 | DeoptimizeIf(equal, instr->environment()); |
| 6423 | |
| 6424 | __ test(eax, Immediate(kSmiTagMask)); |
| 6425 | DeoptimizeIf(zero, instr->environment()); |
| 6426 | |
| 6427 | STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); |
| 6428 | __ CmpObjectType(eax, LAST_JS_PROXY_TYPE, ecx); |
| 6429 | DeoptimizeIf(below_equal, instr->environment()); |
| 6430 | |
| 6431 | Label use_cache, call_runtime; |
| 6432 | __ CheckEnumCache(&call_runtime); |
| 6433 | |
| 6434 | __ mov(eax, FieldOperand(eax, HeapObject::kMapOffset)); |
| 6435 | __ jmp(&use_cache, Label::kNear); |
| 6436 | |
| 6437 | // Get the set of properties to enumerate. |
| 6438 | __ bind(&call_runtime); |
| 6439 | __ push(eax); |
| 6440 | CallRuntime(Runtime::kGetPropertyNamesFast, 1, instr); |
| 6441 | |
| 6442 | __ cmp(FieldOperand(eax, HeapObject::kMapOffset), |
| 6443 | isolate()->factory()->meta_map()); |
| 6444 | DeoptimizeIf(not_equal, instr->environment()); |
| 6445 | __ bind(&use_cache); |
| 6446 | } |
| 6447 | |
| 6448 | |
| 6449 | void LCodeGen::DoForInCacheArray(LForInCacheArray* instr) { |
| 6450 | Register map = ToRegister(instr->map()); |
| 6451 | Register result = ToRegister(instr->result()); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 6452 | Label load_cache, done; |
| 6453 | __ EnumLength(result, map); |
| 6454 | __ cmp(result, Immediate(Smi::FromInt(0))); |
| 6455 | __ j(not_equal, &load_cache); |
| 6456 | __ mov(result, isolate()->factory()->empty_fixed_array()); |
| 6457 | __ jmp(&done); |
| 6458 | |
| 6459 | __ bind(&load_cache); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 6460 | __ LoadInstanceDescriptors(map, result); |
| 6461 | __ mov(result, |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 6462 | FieldOperand(result, DescriptorArray::kEnumCacheOffset)); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 6463 | __ mov(result, |
| 6464 | FieldOperand(result, FixedArray::SizeFor(instr->idx()))); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 6465 | __ bind(&done); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 6466 | __ test(result, result); |
| 6467 | DeoptimizeIf(equal, instr->environment()); |
| 6468 | } |
| 6469 | |
| 6470 | |
| 6471 | void LCodeGen::DoCheckMapValue(LCheckMapValue* instr) { |
| 6472 | Register object = ToRegister(instr->value()); |
| 6473 | __ cmp(ToRegister(instr->map()), |
| 6474 | FieldOperand(object, HeapObject::kMapOffset)); |
| 6475 | DeoptimizeIf(not_equal, instr->environment()); |
| 6476 | } |
| 6477 | |
| 6478 | |
| 6479 | void LCodeGen::DoLoadFieldByIndex(LLoadFieldByIndex* instr) { |
| 6480 | Register object = ToRegister(instr->object()); |
| 6481 | Register index = ToRegister(instr->index()); |
| 6482 | |
| 6483 | Label out_of_object, done; |
| 6484 | __ cmp(index, Immediate(0)); |
| 6485 | __ j(less, &out_of_object); |
| 6486 | __ mov(object, FieldOperand(object, |
| 6487 | index, |
| 6488 | times_half_pointer_size, |
| 6489 | JSObject::kHeaderSize)); |
| 6490 | __ jmp(&done, Label::kNear); |
| 6491 | |
| 6492 | __ bind(&out_of_object); |
| 6493 | __ mov(object, FieldOperand(object, JSObject::kPropertiesOffset)); |
| 6494 | __ neg(index); |
| 6495 | // Index is now equal to out of object property index plus 1. |
| 6496 | __ mov(object, FieldOperand(object, |
| 6497 | index, |
| 6498 | times_half_pointer_size, |
| 6499 | FixedArray::kHeaderSize - kPointerSize)); |
| 6500 | __ bind(&done); |
| 6501 | } |
| 6502 | |
| 6503 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6504 | #undef __ |
| 6505 | |
| 6506 | } } // namespace v8::internal |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 6507 | |
| 6508 | #endif // V8_TARGET_ARCH_IA32 |