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 | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 28 | #include "v8.h" |
| 29 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 30 | #include "arm/lithium-codegen-arm.h" |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 31 | #include "arm/lithium-gap-resolver-arm.h" |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 32 | #include "code-stubs.h" |
| 33 | #include "stub-cache.h" |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 34 | #include "hydrogen-osr.h" |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 35 | |
| 36 | namespace v8 { |
| 37 | namespace internal { |
| 38 | |
| 39 | |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 40 | class SafepointGenerator V8_FINAL : public CallWrapper { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 41 | public: |
| 42 | SafepointGenerator(LCodeGen* codegen, |
| 43 | LPointerMap* pointers, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 44 | Safepoint::DeoptMode mode) |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 45 | : codegen_(codegen), |
| 46 | pointers_(pointers), |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 47 | deopt_mode_(mode) { } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 48 | virtual ~SafepointGenerator() {} |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 49 | |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 50 | virtual void BeforeCall(int call_size) const V8_OVERRIDE {} |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 51 | |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 52 | virtual void AfterCall() const V8_OVERRIDE { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 53 | codegen_->RecordSafepoint(pointers_, deopt_mode_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | private: |
| 57 | LCodeGen* codegen_; |
| 58 | LPointerMap* pointers_; |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 59 | Safepoint::DeoptMode deopt_mode_; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 60 | }; |
| 61 | |
| 62 | |
| 63 | #define __ masm()-> |
| 64 | |
| 65 | bool LCodeGen::GenerateCode() { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 66 | LPhase phase("Z_Code generation", chunk()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 67 | ASSERT(is_unused()); |
| 68 | status_ = GENERATING; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 69 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 70 | // Open a frame scope to indicate that there is a frame on the stack. The |
| 71 | // NONE indicates that the scope shouldn't actually generate code to set up |
| 72 | // the frame (that is done in GeneratePrologue). |
| 73 | FrameScope frame_scope(masm_, StackFrame::NONE); |
| 74 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 75 | return GeneratePrologue() && |
| 76 | GenerateBody() && |
| 77 | GenerateDeferredCode() && |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 78 | GenerateDeoptJumpTable() && |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 79 | GenerateSafepointTable(); |
| 80 | } |
| 81 | |
| 82 | |
| 83 | void LCodeGen::FinishCode(Handle<Code> code) { |
| 84 | ASSERT(is_done()); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 85 | code->set_stack_slots(GetStackSlotCount()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 86 | code->set_safepoint_table_offset(safepoints_.GetCodeOffset()); |
ulan@chromium.org | 6ba1fd0 | 2013-02-14 14:56:11 +0000 | [diff] [blame] | 87 | if (FLAG_weak_embedded_maps_in_optimized_code) { |
| 88 | RegisterDependentCodeForEmbeddedMaps(code); |
| 89 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 90 | PopulateDeoptimizationData(code); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 91 | info()->CommitDependencies(code); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 92 | } |
| 93 | |
| 94 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 95 | void LCodeGen::Abort(BailoutReason reason) { |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 96 | info()->set_bailout_reason(reason); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 97 | status_ = ABORTED; |
| 98 | } |
| 99 | |
| 100 | |
| 101 | void LCodeGen::Comment(const char* format, ...) { |
| 102 | if (!FLAG_code_comments) return; |
| 103 | char buffer[4 * KB]; |
| 104 | StringBuilder builder(buffer, ARRAY_SIZE(buffer)); |
| 105 | va_list arguments; |
| 106 | va_start(arguments, format); |
| 107 | builder.AddFormattedList(format, arguments); |
| 108 | va_end(arguments); |
| 109 | |
| 110 | // Copy the string before recording it in the assembler to avoid |
| 111 | // issues when the stack allocated buffer goes out of scope. |
| 112 | size_t length = builder.position(); |
| 113 | Vector<char> copy = Vector<char>::New(length + 1); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 114 | OS::MemCopy(copy.start(), builder.Finalize(), copy.length()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 115 | masm()->RecordComment(copy.start()); |
| 116 | } |
| 117 | |
| 118 | |
| 119 | bool LCodeGen::GeneratePrologue() { |
| 120 | ASSERT(is_generating()); |
| 121 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 122 | if (info()->IsOptimizing()) { |
| 123 | ProfileEntryHookStub::MaybeCallEntryHook(masm_); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 124 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 125 | #ifdef DEBUG |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 126 | if (strlen(FLAG_stop_at) > 0 && |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 127 | info_->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 128 | __ stop("stop_at"); |
| 129 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 130 | #endif |
| 131 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 132 | // r1: Callee's JS function. |
| 133 | // cp: Callee's context. |
| 134 | // fp: Caller's frame pointer. |
| 135 | // lr: Caller's pc. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 136 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 137 | // Strict mode functions and builtins need to replace the receiver |
| 138 | // with undefined when called as functions (without an explicit |
| 139 | // receiver object). r5 is zero for method calls and non-zero for |
| 140 | // function calls. |
| 141 | if (!info_->is_classic_mode() || info_->is_native()) { |
| 142 | Label ok; |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 143 | __ cmp(r5, Operand::Zero()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 144 | __ b(eq, &ok); |
| 145 | int receiver_offset = scope()->num_parameters() * kPointerSize; |
| 146 | __ LoadRoot(r2, Heap::kUndefinedValueRootIndex); |
| 147 | __ str(r2, MemOperand(sp, receiver_offset)); |
| 148 | __ bind(&ok); |
| 149 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 150 | } |
| 151 | |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 152 | info()->set_prologue_offset(masm_->pc_offset()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 153 | if (NeedsEagerFrame()) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 154 | if (info()->IsStub()) { |
| 155 | __ stm(db_w, sp, cp.bit() | fp.bit() | lr.bit()); |
| 156 | __ Push(Smi::FromInt(StackFrame::STUB)); |
| 157 | // Adjust FP to point to saved FP. |
| 158 | __ add(fp, sp, Operand(2 * kPointerSize)); |
| 159 | } else { |
| 160 | PredictableCodeSizeScope predictible_code_size_scope( |
| 161 | masm_, kNoCodeAgeSequenceLength * Assembler::kInstrSize); |
| 162 | // The following three instructions must remain together and unmodified |
| 163 | // for code aging to work properly. |
| 164 | __ stm(db_w, sp, r1.bit() | cp.bit() | fp.bit() | lr.bit()); |
jkummerow@chromium.org | 1048047 | 2013-07-17 08:22:15 +0000 | [diff] [blame] | 165 | __ nop(ip.code()); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 166 | // Adjust FP to point to saved FP. |
| 167 | __ add(fp, sp, Operand(2 * kPointerSize)); |
| 168 | } |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 169 | frame_is_built_ = true; |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 170 | info_->AddNoFrameRange(0, masm_->pc_offset()); |
ulan@chromium.org | fae3da5 | 2012-12-03 15:37:23 +0000 | [diff] [blame] | 171 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 172 | |
| 173 | // Reserve space for the stack slots needed by the code. |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 174 | int slots = GetStackSlotCount(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 175 | if (slots > 0) { |
| 176 | if (FLAG_debug_code) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 177 | __ sub(sp, sp, Operand(slots * kPointerSize)); |
| 178 | __ push(r0); |
| 179 | __ push(r1); |
| 180 | __ add(r0, sp, Operand(slots * kPointerSize)); |
| 181 | __ mov(r1, Operand(kSlotsZapValue)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 182 | Label loop; |
| 183 | __ bind(&loop); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 184 | __ sub(r0, r0, Operand(kPointerSize)); |
| 185 | __ str(r1, MemOperand(r0, 2 * kPointerSize)); |
| 186 | __ cmp(r0, sp); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 187 | __ b(ne, &loop); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 188 | __ pop(r1); |
| 189 | __ pop(r0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 190 | } else { |
| 191 | __ sub(sp, sp, Operand(slots * kPointerSize)); |
| 192 | } |
| 193 | } |
| 194 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 195 | if (info()->saves_caller_doubles()) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 196 | Comment(";;; Save clobbered callee double registers"); |
| 197 | int count = 0; |
| 198 | BitVector* doubles = chunk()->allocated_double_registers(); |
| 199 | BitVector::Iterator save_iterator(doubles); |
| 200 | while (!save_iterator.Done()) { |
| 201 | __ vstr(DwVfpRegister::FromAllocationIndex(save_iterator.Current()), |
| 202 | MemOperand(sp, count * kDoubleSize)); |
| 203 | save_iterator.Advance(); |
| 204 | count++; |
| 205 | } |
| 206 | } |
| 207 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 208 | // Possibly allocate a local context. |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 209 | int heap_slots = info()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 210 | if (heap_slots > 0) { |
| 211 | Comment(";;; Allocate local context"); |
| 212 | // Argument to NewContext is the function, which is in r1. |
| 213 | __ push(r1); |
| 214 | if (heap_slots <= FastNewContextStub::kMaximumSlots) { |
| 215 | FastNewContextStub stub(heap_slots); |
| 216 | __ CallStub(&stub); |
| 217 | } else { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 218 | __ CallRuntime(Runtime::kNewFunctionContext, 1); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 219 | } |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 220 | RecordSafepoint(Safepoint::kNoLazyDeopt); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 221 | // Context is returned in both r0 and cp. It replaces the context |
| 222 | // passed to us. It's saved in the stack and kept live in cp. |
| 223 | __ str(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 224 | // Copy any necessary parameters into the context. |
| 225 | int num_parameters = scope()->num_parameters(); |
| 226 | for (int i = 0; i < num_parameters; i++) { |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 227 | Variable* var = scope()->parameter(i); |
| 228 | if (var->IsContextSlot()) { |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 229 | int parameter_offset = StandardFrameConstants::kCallerSPOffset + |
| 230 | (num_parameters - 1 - i) * kPointerSize; |
| 231 | // Load parameter from stack. |
| 232 | __ ldr(r0, MemOperand(fp, parameter_offset)); |
| 233 | // Store it in the context. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 234 | MemOperand target = ContextOperand(cp, var->index()); |
| 235 | __ str(r0, target); |
| 236 | // Update the write barrier. This clobbers r3 and r0. |
| 237 | __ RecordWriteContextSlot( |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 238 | cp, |
| 239 | target.offset(), |
| 240 | r0, |
| 241 | r3, |
| 242 | GetLinkRegisterState(), |
| 243 | kSaveFPRegs); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 244 | } |
| 245 | } |
| 246 | Comment(";;; End allocate local context"); |
| 247 | } |
| 248 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 249 | // Trace the call. |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 250 | if (FLAG_trace && info()->IsOptimizing()) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 251 | // We have not executed any compiled code yet, so cp still holds the |
| 252 | // incoming context. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 253 | __ CallRuntime(Runtime::kTraceEnter, 0); |
| 254 | } |
| 255 | return !is_aborted(); |
| 256 | } |
| 257 | |
| 258 | |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 259 | void LCodeGen::GenerateOsrPrologue() { |
| 260 | // Generate the OSR entry prologue at the first unknown OSR value, or if there |
| 261 | // are none, at the OSR entrypoint instruction. |
| 262 | if (osr_pc_offset_ >= 0) return; |
| 263 | |
| 264 | osr_pc_offset_ = masm()->pc_offset(); |
| 265 | |
| 266 | // Adjust the frame size, subsuming the unoptimized frame into the |
| 267 | // optimized frame. |
| 268 | int slots = GetStackSlotCount() - graph()->osr()->UnoptimizedFrameSlots(); |
| 269 | ASSERT(slots >= 0); |
| 270 | __ sub(sp, sp, Operand(slots * kPointerSize)); |
| 271 | } |
| 272 | |
| 273 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 274 | bool LCodeGen::GenerateBody() { |
| 275 | ASSERT(is_generating()); |
| 276 | bool emit_instructions = true; |
| 277 | for (current_instruction_ = 0; |
| 278 | !is_aborted() && current_instruction_ < instructions_->length(); |
| 279 | current_instruction_++) { |
| 280 | LInstruction* instr = instructions_->at(current_instruction_); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 281 | |
| 282 | // Don't emit code for basic blocks with a replacement. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 283 | if (instr->IsLabel()) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 284 | emit_instructions = !LLabel::cast(instr)->HasReplacement(); |
| 285 | } |
| 286 | if (!emit_instructions) continue; |
| 287 | |
| 288 | if (FLAG_code_comments && instr->HasInterestingComment(this)) { |
| 289 | Comment(";;; <@%d,#%d> %s", |
| 290 | current_instruction_, |
| 291 | instr->hydrogen_value()->id(), |
| 292 | instr->Mnemonic()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 293 | } |
| 294 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 295 | RecordAndUpdatePosition(instr->position()); |
| 296 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 297 | instr->CompileToNative(this); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 298 | } |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 299 | EnsureSpaceForLazyDeopt(); |
ulan@chromium.org | 6fe0fda | 2013-07-23 13:34:19 +0000 | [diff] [blame] | 300 | last_lazy_deopt_pc_ = masm()->pc_offset(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 301 | return !is_aborted(); |
| 302 | } |
| 303 | |
| 304 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 305 | bool LCodeGen::GenerateDeferredCode() { |
| 306 | ASSERT(is_generating()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 307 | if (deferred_.length() > 0) { |
| 308 | for (int i = 0; !is_aborted() && i < deferred_.length(); i++) { |
| 309 | LDeferredCode* code = deferred_[i]; |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 310 | |
| 311 | int pos = instructions_->at(code->instruction_index())->position(); |
| 312 | RecordAndUpdatePosition(pos); |
| 313 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 314 | Comment(";;; <@%d,#%d> " |
| 315 | "-------------------- Deferred %s --------------------", |
| 316 | code->instruction_index(), |
| 317 | code->instr()->hydrogen_value()->id(), |
| 318 | code->instr()->Mnemonic()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 319 | __ bind(code->entry()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 320 | if (NeedsDeferredFrame()) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 321 | Comment(";;; Build frame"); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 322 | ASSERT(!frame_is_built_); |
| 323 | ASSERT(info()->IsStub()); |
| 324 | frame_is_built_ = true; |
| 325 | __ stm(db_w, sp, cp.bit() | fp.bit() | lr.bit()); |
| 326 | __ mov(scratch0(), Operand(Smi::FromInt(StackFrame::STUB))); |
| 327 | __ push(scratch0()); |
| 328 | __ add(fp, sp, Operand(2 * kPointerSize)); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 329 | Comment(";;; Deferred code"); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 330 | } |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 331 | code->Generate(); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 332 | if (NeedsDeferredFrame()) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 333 | Comment(";;; Destroy frame"); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 334 | ASSERT(frame_is_built_); |
| 335 | __ pop(ip); |
| 336 | __ ldm(ia_w, sp, cp.bit() | fp.bit() | lr.bit()); |
| 337 | frame_is_built_ = false; |
| 338 | } |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 339 | __ jmp(code->exit()); |
| 340 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 341 | } |
| 342 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 343 | // Force constant pool emission at the end of the deferred code to make |
| 344 | // sure that no constant pools are emitted after. |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 345 | masm()->CheckConstPool(true, false); |
| 346 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 347 | return !is_aborted(); |
| 348 | } |
| 349 | |
| 350 | |
| 351 | bool LCodeGen::GenerateDeoptJumpTable() { |
| 352 | // Check that the jump table is accessible from everywhere in the function |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 353 | // code, i.e. that offsets to the table can be encoded in the 24bit signed |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 354 | // immediate of a branch instruction. |
| 355 | // To simplify we consider the code size from the first instruction to the |
| 356 | // end of the jump table. We also don't consider the pc load delta. |
| 357 | // Each entry in the jump table generates one instruction and inlines one |
| 358 | // 32bit data after it. |
| 359 | if (!is_int24((masm()->pc_offset() / Assembler::kInstrSize) + |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 360 | deopt_jump_table_.length() * 7)) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 361 | Abort(kGeneratedCodeIsTooLarge); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 362 | } |
| 363 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 364 | if (deopt_jump_table_.length() > 0) { |
| 365 | Comment(";;; -------------------- Jump table --------------------"); |
| 366 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 367 | Label table_start; |
| 368 | __ bind(&table_start); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 369 | Label needs_frame; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 370 | for (int i = 0; i < deopt_jump_table_.length(); i++) { |
| 371 | __ bind(&deopt_jump_table_[i].label); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 372 | Address entry = deopt_jump_table_[i].address; |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 373 | Deoptimizer::BailoutType type = deopt_jump_table_[i].bailout_type; |
svenpanne@chromium.org | 876cca8 | 2013-03-18 14:43:20 +0000 | [diff] [blame] | 374 | int id = Deoptimizer::GetDeoptimizationId(isolate(), entry, type); |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 375 | if (id == Deoptimizer::kNotDeoptimizationEntry) { |
| 376 | Comment(";;; jump table entry %d.", i); |
| 377 | } else { |
| 378 | Comment(";;; jump table entry %d: deoptimization bailout %d.", i, id); |
| 379 | } |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 380 | if (deopt_jump_table_[i].needs_frame) { |
| 381 | __ mov(ip, Operand(ExternalReference::ForDeoptEntry(entry))); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 382 | if (needs_frame.is_bound()) { |
| 383 | __ b(&needs_frame); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 384 | } else { |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 385 | __ bind(&needs_frame); |
| 386 | __ stm(db_w, sp, cp.bit() | fp.bit() | lr.bit()); |
| 387 | // This variant of deopt can only be used with stubs. Since we don't |
| 388 | // have a function pointer to install in the stack frame that we're |
| 389 | // building, install a special marker there instead. |
| 390 | ASSERT(info()->IsStub()); |
| 391 | __ mov(scratch0(), Operand(Smi::FromInt(StackFrame::STUB))); |
| 392 | __ push(scratch0()); |
| 393 | __ add(fp, sp, Operand(2 * kPointerSize)); |
| 394 | __ mov(lr, Operand(pc), LeaveCC, al); |
| 395 | __ mov(pc, ip); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 396 | } |
| 397 | } else { |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 398 | __ mov(lr, Operand(pc), LeaveCC, al); |
| 399 | __ mov(pc, Operand(ExternalReference::ForDeoptEntry(entry))); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 400 | } |
| 401 | masm()->CheckConstPool(false, false); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 402 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 403 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 404 | // Force constant pool emission at the end of the deopt jump table to make |
| 405 | // sure that no constant pools are emitted after. |
| 406 | masm()->CheckConstPool(true, false); |
| 407 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 408 | // The deoptimization jump table is the last part of the instruction |
| 409 | // sequence. Mark the generated code as done unless we bailed out. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 410 | if (!is_aborted()) status_ = DONE; |
| 411 | return !is_aborted(); |
| 412 | } |
| 413 | |
| 414 | |
| 415 | bool LCodeGen::GenerateSafepointTable() { |
| 416 | ASSERT(is_done()); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 417 | safepoints_.Emit(masm(), GetStackSlotCount()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 418 | return !is_aborted(); |
| 419 | } |
| 420 | |
| 421 | |
| 422 | Register LCodeGen::ToRegister(int index) const { |
| 423 | return Register::FromAllocationIndex(index); |
| 424 | } |
| 425 | |
| 426 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 427 | DwVfpRegister LCodeGen::ToDoubleRegister(int index) const { |
| 428 | return DwVfpRegister::FromAllocationIndex(index); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 429 | } |
| 430 | |
| 431 | |
| 432 | Register LCodeGen::ToRegister(LOperand* op) const { |
| 433 | ASSERT(op->IsRegister()); |
| 434 | return ToRegister(op->index()); |
| 435 | } |
| 436 | |
| 437 | |
| 438 | Register LCodeGen::EmitLoadRegister(LOperand* op, Register scratch) { |
| 439 | if (op->IsRegister()) { |
| 440 | return ToRegister(op->index()); |
| 441 | } else if (op->IsConstantOperand()) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 442 | LConstantOperand* const_op = LConstantOperand::cast(op); |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 443 | HConstant* constant = chunk_->LookupConstant(const_op); |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 444 | Handle<Object> literal = constant->handle(isolate()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 445 | Representation r = chunk_->LookupLiteralRepresentation(const_op); |
| 446 | if (r.IsInteger32()) { |
| 447 | ASSERT(literal->IsNumber()); |
| 448 | __ mov(scratch, Operand(static_cast<int32_t>(literal->Number()))); |
| 449 | } else if (r.IsDouble()) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 450 | Abort(kEmitLoadRegisterUnsupportedDoubleImmediate); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 451 | } else { |
verwaest@chromium.org | 662436e | 2013-08-28 08:41:27 +0000 | [diff] [blame] | 452 | ASSERT(r.IsSmiOrTagged()); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 453 | __ LoadObject(scratch, literal); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 454 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 455 | return scratch; |
| 456 | } else if (op->IsStackSlot() || op->IsArgument()) { |
| 457 | __ ldr(scratch, ToMemOperand(op)); |
| 458 | return scratch; |
| 459 | } |
| 460 | UNREACHABLE(); |
| 461 | return scratch; |
| 462 | } |
| 463 | |
| 464 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 465 | DwVfpRegister LCodeGen::ToDoubleRegister(LOperand* op) const { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 466 | ASSERT(op->IsDoubleRegister()); |
| 467 | return ToDoubleRegister(op->index()); |
| 468 | } |
| 469 | |
| 470 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 471 | DwVfpRegister LCodeGen::EmitLoadDoubleRegister(LOperand* op, |
| 472 | SwVfpRegister flt_scratch, |
| 473 | DwVfpRegister dbl_scratch) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 474 | if (op->IsDoubleRegister()) { |
| 475 | return ToDoubleRegister(op->index()); |
| 476 | } else if (op->IsConstantOperand()) { |
| 477 | LConstantOperand* const_op = LConstantOperand::cast(op); |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 478 | HConstant* constant = chunk_->LookupConstant(const_op); |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 479 | Handle<Object> literal = constant->handle(isolate()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 480 | Representation r = chunk_->LookupLiteralRepresentation(const_op); |
| 481 | if (r.IsInteger32()) { |
| 482 | ASSERT(literal->IsNumber()); |
| 483 | __ mov(ip, Operand(static_cast<int32_t>(literal->Number()))); |
| 484 | __ vmov(flt_scratch, ip); |
| 485 | __ vcvt_f64_s32(dbl_scratch, flt_scratch); |
| 486 | return dbl_scratch; |
| 487 | } else if (r.IsDouble()) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 488 | Abort(kUnsupportedDoubleImmediate); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 489 | } else if (r.IsTagged()) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 490 | Abort(kUnsupportedTaggedImmediate); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 491 | } |
| 492 | } else if (op->IsStackSlot() || op->IsArgument()) { |
| 493 | // TODO(regis): Why is vldr not taking a MemOperand? |
| 494 | // __ vldr(dbl_scratch, ToMemOperand(op)); |
| 495 | MemOperand mem_op = ToMemOperand(op); |
| 496 | __ vldr(dbl_scratch, mem_op.rn(), mem_op.offset()); |
| 497 | return dbl_scratch; |
| 498 | } |
| 499 | UNREACHABLE(); |
| 500 | return dbl_scratch; |
| 501 | } |
| 502 | |
| 503 | |
danno@chromium.org | bf0c820 | 2011-12-27 10:09:42 +0000 | [diff] [blame] | 504 | Handle<Object> LCodeGen::ToHandle(LConstantOperand* op) const { |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 505 | HConstant* constant = chunk_->LookupConstant(op); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 506 | ASSERT(chunk_->LookupLiteralRepresentation(op).IsSmiOrTagged()); |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 507 | return constant->handle(isolate()); |
danno@chromium.org | bf0c820 | 2011-12-27 10:09:42 +0000 | [diff] [blame] | 508 | } |
| 509 | |
| 510 | |
| 511 | bool LCodeGen::IsInteger32(LConstantOperand* op) const { |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 512 | return chunk_->LookupLiteralRepresentation(op).IsSmiOrInteger32(); |
danno@chromium.org | bf0c820 | 2011-12-27 10:09:42 +0000 | [diff] [blame] | 513 | } |
| 514 | |
| 515 | |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 516 | bool LCodeGen::IsSmi(LConstantOperand* op) const { |
| 517 | return chunk_->LookupLiteralRepresentation(op).IsSmi(); |
| 518 | } |
| 519 | |
| 520 | |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 521 | int32_t LCodeGen::ToInteger32(LConstantOperand* op) const { |
| 522 | return ToRepresentation(op, Representation::Integer32()); |
| 523 | } |
| 524 | |
| 525 | |
| 526 | int32_t LCodeGen::ToRepresentation(LConstantOperand* op, |
| 527 | const Representation& r) const { |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 528 | HConstant* constant = chunk_->LookupConstant(op); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 529 | int32_t value = constant->Integer32Value(); |
| 530 | if (r.IsInteger32()) return value; |
| 531 | ASSERT(r.IsSmiOrTagged()); |
| 532 | return reinterpret_cast<int32_t>(Smi::FromInt(value)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 533 | } |
| 534 | |
| 535 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 536 | Smi* LCodeGen::ToSmi(LConstantOperand* op) const { |
| 537 | HConstant* constant = chunk_->LookupConstant(op); |
| 538 | return Smi::FromInt(constant->Integer32Value()); |
| 539 | } |
| 540 | |
| 541 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 542 | double LCodeGen::ToDouble(LConstantOperand* op) const { |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 543 | HConstant* constant = chunk_->LookupConstant(op); |
| 544 | ASSERT(constant->HasDoubleValue()); |
| 545 | return constant->DoubleValue(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 546 | } |
| 547 | |
| 548 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 549 | Operand LCodeGen::ToOperand(LOperand* op) { |
| 550 | if (op->IsConstantOperand()) { |
| 551 | LConstantOperand* const_op = LConstantOperand::cast(op); |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 552 | HConstant* constant = chunk()->LookupConstant(const_op); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 553 | Representation r = chunk_->LookupLiteralRepresentation(const_op); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 554 | if (r.IsSmi()) { |
| 555 | ASSERT(constant->HasSmiValue()); |
| 556 | return Operand(Smi::FromInt(constant->Integer32Value())); |
| 557 | } else if (r.IsInteger32()) { |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 558 | ASSERT(constant->HasInteger32Value()); |
| 559 | return Operand(constant->Integer32Value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 560 | } else if (r.IsDouble()) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 561 | Abort(kToOperandUnsupportedDoubleImmediate); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 562 | } |
| 563 | ASSERT(r.IsTagged()); |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 564 | return Operand(constant->handle(isolate())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 565 | } else if (op->IsRegister()) { |
| 566 | return Operand(ToRegister(op)); |
| 567 | } else if (op->IsDoubleRegister()) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 568 | Abort(kToOperandIsDoubleRegisterUnimplemented); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 569 | return Operand::Zero(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 570 | } |
| 571 | // Stack slots not implemented, use ToMemOperand instead. |
| 572 | UNREACHABLE(); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 573 | return Operand::Zero(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 574 | } |
| 575 | |
| 576 | |
| 577 | MemOperand LCodeGen::ToMemOperand(LOperand* op) const { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 578 | ASSERT(!op->IsRegister()); |
| 579 | ASSERT(!op->IsDoubleRegister()); |
| 580 | ASSERT(op->IsStackSlot() || op->IsDoubleStackSlot()); |
jkummerow@chromium.org | ac36071 | 2013-02-11 09:00:07 +0000 | [diff] [blame] | 581 | return MemOperand(fp, StackSlotOffset(op->index())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 582 | } |
| 583 | |
| 584 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 585 | MemOperand LCodeGen::ToHighMemOperand(LOperand* op) const { |
| 586 | ASSERT(op->IsDoubleStackSlot()); |
jkummerow@chromium.org | ac36071 | 2013-02-11 09:00:07 +0000 | [diff] [blame] | 587 | return MemOperand(fp, StackSlotOffset(op->index()) + kPointerSize); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 588 | } |
| 589 | |
| 590 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 591 | void LCodeGen::WriteTranslation(LEnvironment* environment, |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 592 | Translation* translation) { |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 593 | if (environment == NULL) return; |
| 594 | |
| 595 | // The translation includes one command per value in the environment. |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 596 | int translation_size = environment->translation_size(); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 597 | // The output frame height does not include the parameters. |
| 598 | int height = translation_size - environment->parameter_count(); |
| 599 | |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 600 | WriteTranslation(environment->outer(), translation); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 601 | bool has_closure_id = !info()->closure().is_null() && |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 602 | !info()->closure().is_identical_to(environment->closure()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 603 | int closure_id = has_closure_id |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 604 | ? DefineDeoptimizationLiteral(environment->closure()) |
| 605 | : Translation::kSelfLiteralId; |
| 606 | |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 607 | switch (environment->frame_type()) { |
| 608 | case JS_FUNCTION: |
| 609 | translation->BeginJSFrame(environment->ast_id(), closure_id, height); |
| 610 | break; |
| 611 | case JS_CONSTRUCT: |
| 612 | translation->BeginConstructStubFrame(closure_id, translation_size); |
| 613 | break; |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 614 | case JS_GETTER: |
| 615 | ASSERT(translation_size == 1); |
| 616 | ASSERT(height == 0); |
| 617 | translation->BeginGetterStubFrame(closure_id); |
| 618 | break; |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 619 | case JS_SETTER: |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 620 | ASSERT(translation_size == 2); |
| 621 | ASSERT(height == 0); |
| 622 | translation->BeginSetterStubFrame(closure_id); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 623 | break; |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 624 | case STUB: |
| 625 | translation->BeginCompiledStubFrame(); |
| 626 | break; |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 627 | case ARGUMENTS_ADAPTOR: |
| 628 | translation->BeginArgumentsAdaptorFrame(closure_id, translation_size); |
| 629 | break; |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 630 | } |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 631 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 632 | int object_index = 0; |
| 633 | int dematerialized_index = 0; |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 634 | for (int i = 0; i < translation_size; ++i) { |
| 635 | LOperand* value = environment->values()->at(i); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 636 | AddToTranslation(environment, |
| 637 | translation, |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 638 | value, |
| 639 | environment->HasTaggedValueAt(i), |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 640 | environment->HasUint32ValueAt(i), |
| 641 | &object_index, |
| 642 | &dematerialized_index); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 643 | } |
| 644 | } |
| 645 | |
| 646 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 647 | void LCodeGen::AddToTranslation(LEnvironment* environment, |
| 648 | Translation* translation, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 649 | LOperand* op, |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 650 | bool is_tagged, |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 651 | bool is_uint32, |
| 652 | int* object_index_pointer, |
| 653 | int* dematerialized_index_pointer) { |
| 654 | if (op == LEnvironment::materialization_marker()) { |
| 655 | int object_index = (*object_index_pointer)++; |
| 656 | if (environment->ObjectIsDuplicateAt(object_index)) { |
| 657 | int dupe_of = environment->ObjectDuplicateOfAt(object_index); |
| 658 | translation->DuplicateObject(dupe_of); |
| 659 | return; |
| 660 | } |
| 661 | int object_length = environment->ObjectLengthAt(object_index); |
| 662 | if (environment->ObjectIsArgumentsAt(object_index)) { |
| 663 | translation->BeginArgumentsObject(object_length); |
| 664 | } else { |
| 665 | translation->BeginCapturedObject(object_length); |
| 666 | } |
| 667 | int dematerialized_index = *dematerialized_index_pointer; |
| 668 | int env_offset = environment->translation_size() + dematerialized_index; |
| 669 | *dematerialized_index_pointer += object_length; |
| 670 | for (int i = 0; i < object_length; ++i) { |
| 671 | LOperand* value = environment->values()->at(env_offset + i); |
| 672 | AddToTranslation(environment, |
| 673 | translation, |
| 674 | value, |
| 675 | environment->HasTaggedValueAt(env_offset + i), |
| 676 | environment->HasUint32ValueAt(env_offset + i), |
| 677 | object_index_pointer, |
| 678 | dematerialized_index_pointer); |
| 679 | } |
| 680 | return; |
| 681 | } |
| 682 | |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 683 | if (op->IsStackSlot()) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 684 | if (is_tagged) { |
| 685 | translation->StoreStackSlot(op->index()); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 686 | } else if (is_uint32) { |
| 687 | translation->StoreUint32StackSlot(op->index()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 688 | } else { |
| 689 | translation->StoreInt32StackSlot(op->index()); |
| 690 | } |
| 691 | } else if (op->IsDoubleStackSlot()) { |
| 692 | translation->StoreDoubleStackSlot(op->index()); |
| 693 | } else if (op->IsArgument()) { |
| 694 | ASSERT(is_tagged); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 695 | int src_index = GetStackSlotCount() + op->index(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 696 | translation->StoreStackSlot(src_index); |
| 697 | } else if (op->IsRegister()) { |
| 698 | Register reg = ToRegister(op); |
| 699 | if (is_tagged) { |
| 700 | translation->StoreRegister(reg); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 701 | } else if (is_uint32) { |
| 702 | translation->StoreUint32Register(reg); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 703 | } else { |
| 704 | translation->StoreInt32Register(reg); |
| 705 | } |
| 706 | } else if (op->IsDoubleRegister()) { |
| 707 | DoubleRegister reg = ToDoubleRegister(op); |
| 708 | translation->StoreDoubleRegister(reg); |
| 709 | } else if (op->IsConstantOperand()) { |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 710 | HConstant* constant = chunk()->LookupConstant(LConstantOperand::cast(op)); |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 711 | int src_index = DefineDeoptimizationLiteral(constant->handle(isolate())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 712 | translation->StoreLiteral(src_index); |
| 713 | } else { |
| 714 | UNREACHABLE(); |
| 715 | } |
| 716 | } |
| 717 | |
| 718 | |
| 719 | void LCodeGen::CallCode(Handle<Code> code, |
| 720 | RelocInfo::Mode mode, |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 721 | LInstruction* instr, |
| 722 | TargetAddressStorageMode storage_mode) { |
| 723 | CallCodeGeneric(code, mode, instr, RECORD_SIMPLE_SAFEPOINT, storage_mode); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 724 | } |
| 725 | |
| 726 | |
| 727 | void LCodeGen::CallCodeGeneric(Handle<Code> code, |
| 728 | RelocInfo::Mode mode, |
| 729 | LInstruction* instr, |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 730 | SafepointMode safepoint_mode, |
| 731 | TargetAddressStorageMode storage_mode) { |
ulan@chromium.org | 6fe0fda | 2013-07-23 13:34:19 +0000 | [diff] [blame] | 732 | EnsureSpaceForLazyDeopt(); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 733 | ASSERT(instr != NULL); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 734 | // Block literal pool emission to ensure nop indicating no inlined smi code |
| 735 | // is in the correct position. |
| 736 | Assembler::BlockConstPoolScope block_const_pool(masm()); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 737 | LPointerMap* pointers = instr->pointer_map(); |
| 738 | RecordPosition(pointers->position()); |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 739 | __ Call(code, mode, TypeFeedbackId::None(), al, storage_mode); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 740 | RecordSafepointWithLazyDeopt(instr, safepoint_mode); |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 741 | |
| 742 | // Signal that we don't inline smi code before these stubs in the |
| 743 | // optimizing code generator. |
| 744 | if (code->kind() == Code::BINARY_OP_IC || |
| 745 | code->kind() == Code::COMPARE_IC) { |
| 746 | __ nop(); |
| 747 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 748 | } |
| 749 | |
| 750 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 751 | void LCodeGen::CallRuntime(const Runtime::Function* function, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 752 | int num_arguments, |
| 753 | LInstruction* instr) { |
| 754 | ASSERT(instr != NULL); |
| 755 | LPointerMap* pointers = instr->pointer_map(); |
| 756 | ASSERT(pointers != NULL); |
| 757 | RecordPosition(pointers->position()); |
| 758 | |
| 759 | __ CallRuntime(function, num_arguments); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 760 | RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 761 | } |
| 762 | |
| 763 | |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 764 | void LCodeGen::LoadContextFromDeferred(LOperand* context) { |
| 765 | if (context->IsRegister()) { |
| 766 | __ Move(cp, ToRegister(context)); |
| 767 | } else if (context->IsStackSlot()) { |
| 768 | __ ldr(cp, ToMemOperand(context)); |
| 769 | } else { |
| 770 | UNREACHABLE(); |
| 771 | } |
| 772 | } |
| 773 | |
| 774 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 775 | void LCodeGen::CallRuntimeFromDeferred(Runtime::FunctionId id, |
| 776 | int argc, |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 777 | LInstruction* instr, |
| 778 | LOperand* context) { |
| 779 | LoadContextFromDeferred(context); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 780 | __ CallRuntimeSaveDoubles(id); |
| 781 | RecordSafepointWithRegisters( |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 782 | instr->pointer_map(), argc, Safepoint::kNoLazyDeopt); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 783 | } |
| 784 | |
| 785 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 786 | void LCodeGen::RegisterEnvironmentForDeoptimization(LEnvironment* environment, |
| 787 | Safepoint::DeoptMode mode) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 788 | if (!environment->HasBeenRegistered()) { |
| 789 | // Physical stack frame layout: |
| 790 | // -x ............. -4 0 ..................................... y |
| 791 | // [incoming arguments] [spill slots] [pushed outgoing arguments] |
| 792 | |
| 793 | // Layout of the environment: |
| 794 | // 0 ..................................................... size-1 |
| 795 | // [parameters] [locals] [expression stack including arguments] |
| 796 | |
| 797 | // Layout of the translation: |
| 798 | // 0 ........................................................ size - 1 + 4 |
| 799 | // [expression stack including arguments] [locals] [4 words] [parameters] |
| 800 | // |>------------ translation_size ------------<| |
| 801 | |
| 802 | int frame_count = 0; |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 803 | int jsframe_count = 0; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 804 | for (LEnvironment* e = environment; e != NULL; e = e->outer()) { |
| 805 | ++frame_count; |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 806 | if (e->frame_type() == JS_FUNCTION) { |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 807 | ++jsframe_count; |
| 808 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 809 | } |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 810 | Translation translation(&translations_, frame_count, jsframe_count, zone()); |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 811 | WriteTranslation(environment, &translation); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 812 | int deoptimization_index = deoptimizations_.length(); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 813 | int pc_offset = masm()->pc_offset(); |
| 814 | environment->Register(deoptimization_index, |
| 815 | translation.index(), |
| 816 | (mode == Safepoint::kLazyDeopt) ? pc_offset : -1); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 817 | deoptimizations_.Add(environment, zone()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 818 | } |
| 819 | } |
| 820 | |
| 821 | |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 822 | void LCodeGen::DeoptimizeIf(Condition condition, |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 823 | LEnvironment* environment, |
| 824 | Deoptimizer::BailoutType bailout_type) { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 825 | RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 826 | ASSERT(environment->HasBeenRegistered()); |
| 827 | int id = environment->deoptimization_index(); |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 828 | ASSERT(info()->IsOptimizing() || info()->IsStub()); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 829 | Address entry = |
| 830 | Deoptimizer::GetDeoptimizationEntry(isolate(), id, bailout_type); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 831 | if (entry == NULL) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 832 | Abort(kBailoutWasNotPrepared); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 833 | return; |
| 834 | } |
| 835 | |
| 836 | ASSERT(FLAG_deopt_every_n_times < 2); // Other values not supported on ARM. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 837 | if (FLAG_deopt_every_n_times == 1 && |
| 838 | !info()->IsStub() && |
| 839 | info()->opt_count() == id) { |
jkummerow@chromium.org | 1048047 | 2013-07-17 08:22:15 +0000 | [diff] [blame] | 840 | ASSERT(frame_is_built_); |
| 841 | __ Call(entry, RelocInfo::RUNTIME_ENTRY); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 842 | return; |
| 843 | } |
| 844 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 845 | if (info()->ShouldTrapOnDeopt()) { |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 846 | __ stop("trap_on_deopt", condition); |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 847 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 848 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 849 | ASSERT(info()->IsStub() || frame_is_built_); |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 850 | if (condition == al && frame_is_built_) { |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 851 | __ Call(entry, RelocInfo::RUNTIME_ENTRY); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 852 | } else { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 853 | // We often have several deopts to the same entry, reuse the last |
| 854 | // jump entry if this is the case. |
| 855 | if (deopt_jump_table_.is_empty() || |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 856 | (deopt_jump_table_.last().address != entry) || |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 857 | (deopt_jump_table_.last().bailout_type != bailout_type) || |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 858 | (deopt_jump_table_.last().needs_frame != !frame_is_built_)) { |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 859 | Deoptimizer::JumpTableEntry table_entry(entry, |
| 860 | bailout_type, |
| 861 | !frame_is_built_); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 862 | deopt_jump_table_.Add(table_entry, zone()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 863 | } |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 864 | __ b(condition, &deopt_jump_table_.last().label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 865 | } |
| 866 | } |
| 867 | |
| 868 | |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 869 | void LCodeGen::DeoptimizeIf(Condition condition, |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 870 | LEnvironment* environment) { |
| 871 | Deoptimizer::BailoutType bailout_type = info()->IsStub() |
| 872 | ? Deoptimizer::LAZY |
| 873 | : Deoptimizer::EAGER; |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 874 | DeoptimizeIf(condition, environment, bailout_type); |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 875 | } |
| 876 | |
| 877 | |
ulan@chromium.org | 6ba1fd0 | 2013-02-14 14:56:11 +0000 | [diff] [blame] | 878 | void LCodeGen::RegisterDependentCodeForEmbeddedMaps(Handle<Code> code) { |
| 879 | ZoneList<Handle<Map> > maps(1, zone()); |
| 880 | int mode_mask = RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT); |
| 881 | for (RelocIterator it(*code, mode_mask); !it.done(); it.next()) { |
| 882 | RelocInfo::Mode mode = it.rinfo()->rmode(); |
| 883 | if (mode == RelocInfo::EMBEDDED_OBJECT && |
| 884 | it.rinfo()->target_object()->IsMap()) { |
| 885 | Handle<Map> map(Map::cast(it.rinfo()->target_object())); |
| 886 | if (map->CanTransition()) { |
| 887 | maps.Add(map, zone()); |
| 888 | } |
| 889 | } |
| 890 | } |
| 891 | #ifdef VERIFY_HEAP |
| 892 | // This disables verification of weak embedded maps after full GC. |
| 893 | // AddDependentCode can cause a GC, which would observe the state where |
| 894 | // this code is not yet in the depended code lists of the embedded maps. |
| 895 | NoWeakEmbeddedMapsVerificationScope disable_verification_of_embedded_maps; |
| 896 | #endif |
| 897 | for (int i = 0; i < maps.length(); i++) { |
ulan@chromium.org | 2e04b58 | 2013-02-21 14:06:02 +0000 | [diff] [blame] | 898 | maps.at(i)->AddDependentCode(DependentCode::kWeaklyEmbeddedGroup, code); |
ulan@chromium.org | 6ba1fd0 | 2013-02-14 14:56:11 +0000 | [diff] [blame] | 899 | } |
| 900 | } |
| 901 | |
| 902 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 903 | void LCodeGen::PopulateDeoptimizationData(Handle<Code> code) { |
| 904 | int length = deoptimizations_.length(); |
| 905 | if (length == 0) return; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 906 | Handle<DeoptimizationInputData> data = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 907 | factory()->NewDeoptimizationInputData(length, TENURED); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 908 | |
svenpanne@chromium.org | 876cca8 | 2013-03-18 14:43:20 +0000 | [diff] [blame] | 909 | Handle<ByteArray> translations = |
| 910 | translations_.CreateByteArray(isolate()->factory()); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 911 | data->SetTranslationByteArray(*translations); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 912 | data->SetInlinedFunctionCount(Smi::FromInt(inlined_function_count_)); |
| 913 | |
| 914 | Handle<FixedArray> literals = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 915 | factory()->NewFixedArray(deoptimization_literals_.length(), TENURED); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 916 | { AllowDeferredHandleDereference copy_handles; |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 917 | for (int i = 0; i < deoptimization_literals_.length(); i++) { |
| 918 | literals->set(i, *deoptimization_literals_[i]); |
| 919 | } |
| 920 | data->SetLiteralArray(*literals); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 921 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 922 | |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 923 | data->SetOsrAstId(Smi::FromInt(info_->osr_ast_id().ToInt())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 924 | data->SetOsrPcOffset(Smi::FromInt(osr_pc_offset_)); |
| 925 | |
| 926 | // Populate the deoptimization entries. |
| 927 | for (int i = 0; i < length; i++) { |
| 928 | LEnvironment* env = deoptimizations_[i]; |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 929 | data->SetAstId(i, env->ast_id()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 930 | data->SetTranslationIndex(i, Smi::FromInt(env->translation_index())); |
| 931 | data->SetArgumentsStackHeight(i, |
| 932 | Smi::FromInt(env->arguments_stack_height())); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 933 | data->SetPc(i, Smi::FromInt(env->pc_offset())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 934 | } |
| 935 | code->set_deoptimization_data(*data); |
| 936 | } |
| 937 | |
| 938 | |
| 939 | int LCodeGen::DefineDeoptimizationLiteral(Handle<Object> literal) { |
| 940 | int result = deoptimization_literals_.length(); |
| 941 | for (int i = 0; i < deoptimization_literals_.length(); ++i) { |
| 942 | if (deoptimization_literals_[i].is_identical_to(literal)) return i; |
| 943 | } |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 944 | deoptimization_literals_.Add(literal, zone()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 945 | return result; |
| 946 | } |
| 947 | |
| 948 | |
| 949 | void LCodeGen::PopulateDeoptimizationLiteralsWithInlinedFunctions() { |
| 950 | ASSERT(deoptimization_literals_.length() == 0); |
| 951 | |
| 952 | const ZoneList<Handle<JSFunction> >* inlined_closures = |
| 953 | chunk()->inlined_closures(); |
| 954 | |
| 955 | for (int i = 0, length = inlined_closures->length(); |
| 956 | i < length; |
| 957 | i++) { |
| 958 | DefineDeoptimizationLiteral(inlined_closures->at(i)); |
| 959 | } |
| 960 | |
| 961 | inlined_function_count_ = deoptimization_literals_.length(); |
| 962 | } |
| 963 | |
| 964 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 965 | void LCodeGen::RecordSafepointWithLazyDeopt( |
| 966 | LInstruction* instr, SafepointMode safepoint_mode) { |
| 967 | if (safepoint_mode == RECORD_SIMPLE_SAFEPOINT) { |
| 968 | RecordSafepoint(instr->pointer_map(), Safepoint::kLazyDeopt); |
| 969 | } else { |
| 970 | ASSERT(safepoint_mode == RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); |
| 971 | RecordSafepointWithRegisters( |
| 972 | instr->pointer_map(), 0, Safepoint::kLazyDeopt); |
| 973 | } |
| 974 | } |
| 975 | |
| 976 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 977 | void LCodeGen::RecordSafepoint( |
| 978 | LPointerMap* pointers, |
| 979 | Safepoint::Kind kind, |
| 980 | int arguments, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 981 | Safepoint::DeoptMode deopt_mode) { |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 982 | ASSERT(expected_safepoint_kind_ == kind); |
| 983 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 984 | const ZoneList<LOperand*>* operands = pointers->GetNormalizedOperands(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 985 | Safepoint safepoint = safepoints_.DefineSafepoint(masm(), |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 986 | kind, arguments, deopt_mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 987 | for (int i = 0; i < operands->length(); i++) { |
| 988 | LOperand* pointer = operands->at(i); |
| 989 | if (pointer->IsStackSlot()) { |
rossberg@chromium.org | 400388e | 2012-06-06 09:29:22 +0000 | [diff] [blame] | 990 | safepoint.DefinePointerSlot(pointer->index(), zone()); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 991 | } else if (pointer->IsRegister() && (kind & Safepoint::kWithRegisters)) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 992 | safepoint.DefinePointerRegister(ToRegister(pointer), zone()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 993 | } |
| 994 | } |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 995 | } |
| 996 | |
| 997 | |
| 998 | void LCodeGen::RecordSafepoint(LPointerMap* pointers, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 999 | Safepoint::DeoptMode deopt_mode) { |
| 1000 | RecordSafepoint(pointers, Safepoint::kSimple, 0, deopt_mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1001 | } |
| 1002 | |
| 1003 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1004 | void LCodeGen::RecordSafepoint(Safepoint::DeoptMode deopt_mode) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 1005 | LPointerMap empty_pointers(RelocInfo::kNoPosition, zone()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1006 | RecordSafepoint(&empty_pointers, deopt_mode); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1007 | } |
| 1008 | |
| 1009 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1010 | void LCodeGen::RecordSafepointWithRegisters(LPointerMap* pointers, |
| 1011 | int arguments, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1012 | Safepoint::DeoptMode deopt_mode) { |
| 1013 | RecordSafepoint( |
| 1014 | pointers, Safepoint::kWithRegisters, arguments, deopt_mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1015 | } |
| 1016 | |
| 1017 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1018 | void LCodeGen::RecordSafepointWithRegistersAndDoubles( |
| 1019 | LPointerMap* pointers, |
| 1020 | int arguments, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1021 | Safepoint::DeoptMode deopt_mode) { |
| 1022 | RecordSafepoint( |
| 1023 | pointers, Safepoint::kWithRegistersAndDoubles, arguments, deopt_mode); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1024 | } |
| 1025 | |
| 1026 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1027 | void LCodeGen::RecordPosition(int position) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1028 | if (position == RelocInfo::kNoPosition) return; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1029 | masm()->positions_recorder()->RecordPosition(position); |
| 1030 | } |
| 1031 | |
| 1032 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 1033 | void LCodeGen::RecordAndUpdatePosition(int position) { |
| 1034 | if (position >= 0 && position != old_position_) { |
| 1035 | masm()->positions_recorder()->RecordPosition(position); |
| 1036 | old_position_ = position; |
| 1037 | } |
| 1038 | } |
| 1039 | |
| 1040 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1041 | static const char* LabelType(LLabel* label) { |
| 1042 | if (label->is_loop_header()) return " (loop header)"; |
| 1043 | if (label->is_osr_entry()) return " (OSR entry)"; |
| 1044 | return ""; |
| 1045 | } |
| 1046 | |
| 1047 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1048 | void LCodeGen::DoLabel(LLabel* label) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1049 | Comment(";;; <@%d,#%d> -------------------- B%d%s --------------------", |
| 1050 | current_instruction_, |
| 1051 | label->hydrogen_value()->id(), |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 1052 | label->block_id(), |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1053 | LabelType(label)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1054 | __ bind(label->label()); |
| 1055 | current_block_ = label->block_id(); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 1056 | DoGap(label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1057 | } |
| 1058 | |
| 1059 | |
| 1060 | void LCodeGen::DoParallelMove(LParallelMove* move) { |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1061 | resolver_.Resolve(move); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1062 | } |
| 1063 | |
| 1064 | |
| 1065 | void LCodeGen::DoGap(LGap* gap) { |
| 1066 | for (int i = LGap::FIRST_INNER_POSITION; |
| 1067 | i <= LGap::LAST_INNER_POSITION; |
| 1068 | i++) { |
| 1069 | LGap::InnerPosition inner_pos = static_cast<LGap::InnerPosition>(i); |
| 1070 | LParallelMove* move = gap->GetParallelMove(inner_pos); |
| 1071 | if (move != NULL) DoParallelMove(move); |
| 1072 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1073 | } |
| 1074 | |
| 1075 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 1076 | void LCodeGen::DoInstructionGap(LInstructionGap* instr) { |
| 1077 | DoGap(instr); |
| 1078 | } |
| 1079 | |
| 1080 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1081 | void LCodeGen::DoParameter(LParameter* instr) { |
| 1082 | // Nothing to do. |
| 1083 | } |
| 1084 | |
| 1085 | |
| 1086 | void LCodeGen::DoCallStub(LCallStub* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 1087 | ASSERT(ToRegister(instr->context()).is(cp)); |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 1088 | ASSERT(ToRegister(instr->result()).is(r0)); |
| 1089 | switch (instr->hydrogen()->major_key()) { |
| 1090 | case CodeStub::RegExpConstructResult: { |
| 1091 | RegExpConstructResultStub stub; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1092 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 1093 | break; |
| 1094 | } |
| 1095 | case CodeStub::RegExpExec: { |
| 1096 | RegExpExecStub stub; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1097 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 1098 | break; |
| 1099 | } |
| 1100 | case CodeStub::SubString: { |
| 1101 | SubStringStub stub; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1102 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 1103 | break; |
| 1104 | } |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 1105 | case CodeStub::StringCompare: { |
| 1106 | StringCompareStub stub; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1107 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 1108 | break; |
| 1109 | } |
| 1110 | case CodeStub::TranscendentalCache: { |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1111 | __ ldr(r0, MemOperand(sp, 0)); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1112 | TranscendentalCacheStub stub(instr->transcendental_type(), |
| 1113 | TranscendentalCacheStub::TAGGED); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1114 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 1115 | break; |
| 1116 | } |
| 1117 | default: |
| 1118 | UNREACHABLE(); |
| 1119 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1120 | } |
| 1121 | |
| 1122 | |
| 1123 | void LCodeGen::DoUnknownOSRValue(LUnknownOSRValue* instr) { |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 1124 | GenerateOsrPrologue(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1125 | } |
| 1126 | |
| 1127 | |
| 1128 | void LCodeGen::DoModI(LModI* instr) { |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1129 | HMod* hmod = instr->hydrogen(); |
| 1130 | HValue* left = hmod->left(); |
| 1131 | HValue* right = hmod->right(); |
| 1132 | if (hmod->HasPowerOf2Divisor()) { |
| 1133 | // TODO(svenpanne) We should really do the strength reduction on the |
| 1134 | // Hydrogen level. |
| 1135 | Register left_reg = ToRegister(instr->left()); |
| 1136 | Register result_reg = ToRegister(instr->result()); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1137 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1138 | // Note: The code below even works when right contains kMinInt. |
| 1139 | int32_t divisor = Abs(right->GetInteger32Constant()); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1140 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1141 | Label left_is_not_negative, done; |
| 1142 | if (left->CanBeNegative()) { |
| 1143 | __ cmp(left_reg, Operand::Zero()); |
| 1144 | __ b(pl, &left_is_not_negative); |
| 1145 | __ rsb(result_reg, left_reg, Operand::Zero()); |
| 1146 | __ and_(result_reg, result_reg, Operand(divisor - 1)); |
| 1147 | __ rsb(result_reg, result_reg, Operand::Zero(), SetCC); |
| 1148 | if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1149 | DeoptimizeIf(eq, instr->environment()); |
| 1150 | } |
| 1151 | __ b(&done); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1152 | } |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1153 | |
| 1154 | __ bind(&left_is_not_negative); |
| 1155 | __ and_(result_reg, left_reg, Operand(divisor - 1)); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1156 | __ bind(&done); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 1157 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1158 | } else if (hmod->fixed_right_arg().has_value) { |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1159 | Register left_reg = ToRegister(instr->left()); |
| 1160 | Register right_reg = ToRegister(instr->right()); |
| 1161 | Register result_reg = ToRegister(instr->result()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1162 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1163 | int32_t divisor = hmod->fixed_right_arg().value; |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1164 | ASSERT(IsPowerOf2(divisor)); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 1165 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1166 | // Check if our assumption of a fixed right operand still holds. |
| 1167 | __ cmp(right_reg, Operand(divisor)); |
| 1168 | DeoptimizeIf(ne, instr->environment()); |
| 1169 | |
| 1170 | Label left_is_not_negative, done; |
| 1171 | if (left->CanBeNegative()) { |
| 1172 | __ cmp(left_reg, Operand::Zero()); |
| 1173 | __ b(pl, &left_is_not_negative); |
| 1174 | __ rsb(result_reg, left_reg, Operand::Zero()); |
| 1175 | __ and_(result_reg, result_reg, Operand(divisor - 1)); |
| 1176 | __ rsb(result_reg, result_reg, Operand::Zero(), SetCC); |
| 1177 | if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1178 | DeoptimizeIf(eq, instr->environment()); |
| 1179 | } |
| 1180 | __ b(&done); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1181 | } |
| 1182 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1183 | __ bind(&left_is_not_negative); |
| 1184 | __ and_(result_reg, left_reg, Operand(divisor - 1)); |
| 1185 | __ bind(&done); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1186 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1187 | } else if (CpuFeatures::IsSupported(SUDIV)) { |
| 1188 | CpuFeatureScope scope(masm(), SUDIV); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1189 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1190 | Register left_reg = ToRegister(instr->left()); |
| 1191 | Register right_reg = ToRegister(instr->right()); |
| 1192 | Register result_reg = ToRegister(instr->result()); |
| 1193 | |
| 1194 | Label done; |
| 1195 | // Check for x % 0, sdiv might signal an exception. We have to deopt in this |
| 1196 | // case because we can't return a NaN. |
| 1197 | if (right->CanBeZero()) { |
| 1198 | __ cmp(right_reg, Operand::Zero()); |
| 1199 | DeoptimizeIf(eq, instr->environment()); |
| 1200 | } |
| 1201 | |
| 1202 | // Check for kMinInt % -1, sdiv will return kMinInt, which is not what we |
| 1203 | // want. We have to deopt if we care about -0, because we can't return that. |
| 1204 | if (left->RangeCanInclude(kMinInt) && right->RangeCanInclude(-1)) { |
| 1205 | Label no_overflow_possible; |
| 1206 | __ cmp(left_reg, Operand(kMinInt)); |
| 1207 | __ b(ne, &no_overflow_possible); |
| 1208 | __ cmp(right_reg, Operand(-1)); |
| 1209 | if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1210 | DeoptimizeIf(eq, instr->environment()); |
| 1211 | } else { |
| 1212 | __ b(ne, &no_overflow_possible); |
| 1213 | __ mov(result_reg, Operand::Zero()); |
| 1214 | __ jmp(&done); |
| 1215 | } |
| 1216 | __ bind(&no_overflow_possible); |
| 1217 | } |
| 1218 | |
| 1219 | // For 'r3 = r1 % r2' we can have the following ARM code: |
| 1220 | // sdiv r3, r1, r2 |
| 1221 | // mls r3, r3, r2, r1 |
| 1222 | |
| 1223 | __ sdiv(result_reg, left_reg, right_reg); |
| 1224 | __ mls(result_reg, result_reg, right_reg, left_reg); |
| 1225 | |
| 1226 | // If we care about -0, test if the dividend is <0 and the result is 0. |
| 1227 | if (left->CanBeNegative() && |
| 1228 | hmod->CanBeZero() && |
| 1229 | hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1230 | __ cmp(result_reg, Operand::Zero()); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 1231 | __ b(ne, &done); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1232 | __ cmp(left_reg, Operand::Zero()); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 1233 | DeoptimizeIf(lt, instr->environment()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1234 | } |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1235 | __ bind(&done); |
| 1236 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1237 | } else { |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1238 | // General case, without any SDIV support. |
| 1239 | Register left_reg = ToRegister(instr->left()); |
| 1240 | Register right_reg = ToRegister(instr->right()); |
| 1241 | Register result_reg = ToRegister(instr->result()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1242 | Register scratch = scratch0(); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1243 | ASSERT(!scratch.is(left_reg)); |
| 1244 | ASSERT(!scratch.is(right_reg)); |
| 1245 | ASSERT(!scratch.is(result_reg)); |
| 1246 | DwVfpRegister dividend = ToDoubleRegister(instr->temp()); |
| 1247 | DwVfpRegister divisor = ToDoubleRegister(instr->temp2()); |
| 1248 | ASSERT(!divisor.is(dividend)); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 1249 | LowDwVfpRegister quotient = double_scratch0(); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1250 | ASSERT(!quotient.is(dividend)); |
| 1251 | ASSERT(!quotient.is(divisor)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1252 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1253 | Label done; |
| 1254 | // Check for x % 0, we have to deopt in this case because we can't return a |
| 1255 | // NaN. |
| 1256 | if (right->CanBeZero()) { |
| 1257 | __ cmp(right_reg, Operand::Zero()); |
| 1258 | DeoptimizeIf(eq, instr->environment()); |
| 1259 | } |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1260 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1261 | __ Move(result_reg, left_reg); |
| 1262 | // Load the arguments in VFP registers. The divisor value is preloaded |
| 1263 | // before. Be careful that 'right_reg' is only live on entry. |
| 1264 | // TODO(svenpanne) The last comments seems to be wrong nowadays. |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 1265 | __ vmov(double_scratch0().low(), left_reg); |
| 1266 | __ vcvt_f64_s32(dividend, double_scratch0().low()); |
| 1267 | __ vmov(double_scratch0().low(), right_reg); |
| 1268 | __ vcvt_f64_s32(divisor, double_scratch0().low()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1269 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1270 | // We do not care about the sign of the divisor. Note that we still handle |
| 1271 | // the kMinInt % -1 case correctly, though. |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1272 | __ vabs(divisor, divisor); |
| 1273 | // Compute the quotient and round it to a 32bit integer. |
| 1274 | __ vdiv(quotient, dividend, divisor); |
| 1275 | __ vcvt_s32_f64(quotient.low(), quotient); |
| 1276 | __ vcvt_f64_s32(quotient, quotient.low()); |
| 1277 | |
| 1278 | // Compute the remainder in result. |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 1279 | __ vmul(double_scratch0(), divisor, quotient); |
| 1280 | __ vcvt_s32_f64(double_scratch0().low(), double_scratch0()); |
| 1281 | __ vmov(scratch, double_scratch0().low()); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1282 | __ sub(result_reg, left_reg, scratch, SetCC); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1283 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1284 | // If we care about -0, test if the dividend is <0 and the result is 0. |
| 1285 | if (left->CanBeNegative() && |
| 1286 | hmod->CanBeZero() && |
| 1287 | hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1288 | __ b(ne, &done); |
| 1289 | __ cmp(left_reg, Operand::Zero()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1290 | DeoptimizeIf(mi, instr->environment()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1291 | } |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1292 | __ bind(&done); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1293 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1294 | } |
| 1295 | |
| 1296 | |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 1297 | void LCodeGen::EmitSignedIntegerDivisionByConstant( |
| 1298 | Register result, |
| 1299 | Register dividend, |
| 1300 | int32_t divisor, |
| 1301 | Register remainder, |
| 1302 | Register scratch, |
| 1303 | LEnvironment* environment) { |
| 1304 | ASSERT(!AreAliased(dividend, scratch, ip)); |
| 1305 | ASSERT(LChunkBuilder::HasMagicNumberForDivisor(divisor)); |
| 1306 | |
| 1307 | uint32_t divisor_abs = abs(divisor); |
| 1308 | |
| 1309 | int32_t power_of_2_factor = |
| 1310 | CompilerIntrinsics::CountTrailingZeros(divisor_abs); |
| 1311 | |
| 1312 | switch (divisor_abs) { |
| 1313 | case 0: |
| 1314 | DeoptimizeIf(al, environment); |
| 1315 | return; |
| 1316 | |
| 1317 | case 1: |
| 1318 | if (divisor > 0) { |
| 1319 | __ Move(result, dividend); |
| 1320 | } else { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1321 | __ rsb(result, dividend, Operand::Zero(), SetCC); |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 1322 | DeoptimizeIf(vs, environment); |
| 1323 | } |
| 1324 | // Compute the remainder. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1325 | __ mov(remainder, Operand::Zero()); |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 1326 | return; |
| 1327 | |
| 1328 | default: |
| 1329 | if (IsPowerOf2(divisor_abs)) { |
| 1330 | // Branch and condition free code for integer division by a power |
| 1331 | // of two. |
| 1332 | int32_t power = WhichPowerOf2(divisor_abs); |
| 1333 | if (power > 1) { |
| 1334 | __ mov(scratch, Operand(dividend, ASR, power - 1)); |
| 1335 | } |
| 1336 | __ add(scratch, dividend, Operand(scratch, LSR, 32 - power)); |
| 1337 | __ mov(result, Operand(scratch, ASR, power)); |
| 1338 | // Negate if necessary. |
| 1339 | // We don't need to check for overflow because the case '-1' is |
| 1340 | // handled separately. |
| 1341 | if (divisor < 0) { |
| 1342 | ASSERT(divisor != -1); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1343 | __ rsb(result, result, Operand::Zero()); |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 1344 | } |
| 1345 | // Compute the remainder. |
| 1346 | if (divisor > 0) { |
| 1347 | __ sub(remainder, dividend, Operand(result, LSL, power)); |
| 1348 | } else { |
| 1349 | __ add(remainder, dividend, Operand(result, LSL, power)); |
| 1350 | } |
| 1351 | return; |
| 1352 | } else { |
| 1353 | // Use magic numbers for a few specific divisors. |
| 1354 | // Details and proofs can be found in: |
| 1355 | // - Hacker's Delight, Henry S. Warren, Jr. |
| 1356 | // - The PowerPC Compiler Writer’s Guide |
| 1357 | // and probably many others. |
| 1358 | // |
| 1359 | // We handle |
| 1360 | // <divisor with magic numbers> * <power of 2> |
| 1361 | // but not |
| 1362 | // <divisor with magic numbers> * <other divisor with magic numbers> |
| 1363 | DivMagicNumbers magic_numbers = |
| 1364 | DivMagicNumberFor(divisor_abs >> power_of_2_factor); |
| 1365 | // Branch and condition free code for integer division by a power |
| 1366 | // of two. |
| 1367 | const int32_t M = magic_numbers.M; |
| 1368 | const int32_t s = magic_numbers.s + power_of_2_factor; |
| 1369 | |
| 1370 | __ mov(ip, Operand(M)); |
| 1371 | __ smull(ip, scratch, dividend, ip); |
| 1372 | if (M < 0) { |
| 1373 | __ add(scratch, scratch, Operand(dividend)); |
| 1374 | } |
| 1375 | if (s > 0) { |
| 1376 | __ mov(scratch, Operand(scratch, ASR, s)); |
| 1377 | } |
| 1378 | __ add(result, scratch, Operand(dividend, LSR, 31)); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1379 | if (divisor < 0) __ rsb(result, result, Operand::Zero()); |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 1380 | // Compute the remainder. |
| 1381 | __ mov(ip, Operand(divisor)); |
| 1382 | // This sequence could be replaced with 'mls' when |
| 1383 | // it gets implemented. |
| 1384 | __ mul(scratch, result, ip); |
| 1385 | __ sub(remainder, dividend, scratch); |
| 1386 | } |
| 1387 | } |
| 1388 | } |
| 1389 | |
| 1390 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1391 | void LCodeGen::DoDivI(LDivI* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1392 | if (instr->hydrogen()->HasPowerOf2Divisor()) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 1393 | const Register dividend = ToRegister(instr->left()); |
| 1394 | const Register result = ToRegister(instr->result()); |
ulan@chromium.org | 837a67e | 2013-06-11 15:39:48 +0000 | [diff] [blame] | 1395 | int32_t divisor = instr->hydrogen()->right()->GetInteger32Constant(); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1396 | int32_t test_value = 0; |
| 1397 | int32_t power = 0; |
| 1398 | |
| 1399 | if (divisor > 0) { |
| 1400 | test_value = divisor - 1; |
| 1401 | power = WhichPowerOf2(divisor); |
| 1402 | } else { |
| 1403 | // Check for (0 / -x) that will produce negative zero. |
| 1404 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 1405 | __ cmp(dividend, Operand::Zero()); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1406 | DeoptimizeIf(eq, instr->environment()); |
| 1407 | } |
| 1408 | // Check for (kMinInt / -1). |
| 1409 | if (divisor == -1 && instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1410 | __ cmp(dividend, Operand(kMinInt)); |
| 1411 | DeoptimizeIf(eq, instr->environment()); |
| 1412 | } |
| 1413 | test_value = - divisor - 1; |
| 1414 | power = WhichPowerOf2(-divisor); |
| 1415 | } |
| 1416 | |
| 1417 | if (test_value != 0) { |
ulan@chromium.org | 837a67e | 2013-06-11 15:39:48 +0000 | [diff] [blame] | 1418 | if (instr->hydrogen()->CheckFlag( |
| 1419 | HInstruction::kAllUsesTruncatingToInt32)) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 1420 | __ sub(result, dividend, Operand::Zero(), SetCC); |
| 1421 | __ rsb(result, result, Operand::Zero(), LeaveCC, lt); |
| 1422 | __ mov(result, Operand(result, ASR, power)); |
| 1423 | if (divisor > 0) __ rsb(result, result, Operand::Zero(), LeaveCC, lt); |
| 1424 | if (divisor < 0) __ rsb(result, result, Operand::Zero(), LeaveCC, gt); |
ulan@chromium.org | 837a67e | 2013-06-11 15:39:48 +0000 | [diff] [blame] | 1425 | return; // Don't fall through to "__ rsb" below. |
| 1426 | } else { |
| 1427 | // Deoptimize if remainder is not 0. |
| 1428 | __ tst(dividend, Operand(test_value)); |
| 1429 | DeoptimizeIf(ne, instr->environment()); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 1430 | __ mov(result, Operand(dividend, ASR, power)); |
| 1431 | if (divisor < 0) __ rsb(result, result, Operand(0)); |
| 1432 | } |
| 1433 | } else { |
| 1434 | if (divisor < 0) { |
| 1435 | __ rsb(result, dividend, Operand(0)); |
| 1436 | } else { |
| 1437 | __ Move(result, dividend); |
ulan@chromium.org | 837a67e | 2013-06-11 15:39:48 +0000 | [diff] [blame] | 1438 | } |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1439 | } |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1440 | |
| 1441 | return; |
| 1442 | } |
| 1443 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1444 | const Register left = ToRegister(instr->left()); |
| 1445 | const Register right = ToRegister(instr->right()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1446 | const Register result = ToRegister(instr->result()); |
| 1447 | |
| 1448 | // Check for x / 0. |
| 1449 | if (instr->hydrogen()->CheckFlag(HValue::kCanBeDivByZero)) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1450 | __ cmp(right, Operand::Zero()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1451 | DeoptimizeIf(eq, instr->environment()); |
| 1452 | } |
| 1453 | |
| 1454 | // Check for (0 / -x) that will produce negative zero. |
| 1455 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 1456 | Label positive; |
| 1457 | if (!instr->hydrogen()->CheckFlag(HValue::kCanBeDivByZero)) { |
| 1458 | // Do the test only if it hadn't be done above. |
| 1459 | __ cmp(right, Operand::Zero()); |
| 1460 | } |
| 1461 | __ b(pl, &positive); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1462 | __ cmp(left, Operand::Zero()); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 1463 | DeoptimizeIf(eq, instr->environment()); |
| 1464 | __ bind(&positive); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1465 | } |
| 1466 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1467 | // Check for (kMinInt / -1). |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1468 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1469 | Label left_not_min_int; |
| 1470 | __ cmp(left, Operand(kMinInt)); |
| 1471 | __ b(ne, &left_not_min_int); |
| 1472 | __ cmp(right, Operand(-1)); |
| 1473 | DeoptimizeIf(eq, instr->environment()); |
| 1474 | __ bind(&left_not_min_int); |
| 1475 | } |
| 1476 | |
ulan@chromium.org | 837a67e | 2013-06-11 15:39:48 +0000 | [diff] [blame] | 1477 | if (CpuFeatures::IsSupported(SUDIV)) { |
| 1478 | CpuFeatureScope scope(masm(), SUDIV); |
| 1479 | __ sdiv(result, left, right); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1480 | |
ulan@chromium.org | 837a67e | 2013-06-11 15:39:48 +0000 | [diff] [blame] | 1481 | if (!instr->hydrogen()->CheckFlag( |
| 1482 | HInstruction::kAllUsesTruncatingToInt32)) { |
| 1483 | // Compute remainder and deopt if it's not zero. |
| 1484 | const Register remainder = scratch0(); |
| 1485 | __ mls(remainder, result, right, left); |
| 1486 | __ cmp(remainder, Operand::Zero()); |
| 1487 | DeoptimizeIf(ne, instr->environment()); |
| 1488 | } |
| 1489 | } else { |
| 1490 | const DoubleRegister vleft = ToDoubleRegister(instr->temp()); |
| 1491 | const DoubleRegister vright = double_scratch0(); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 1492 | __ vmov(double_scratch0().low(), left); |
| 1493 | __ vcvt_f64_s32(vleft, double_scratch0().low()); |
| 1494 | __ vmov(double_scratch0().low(), right); |
| 1495 | __ vcvt_f64_s32(vright, double_scratch0().low()); |
ulan@chromium.org | 837a67e | 2013-06-11 15:39:48 +0000 | [diff] [blame] | 1496 | __ vdiv(vleft, vleft, vright); // vleft now contains the result. |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 1497 | __ vcvt_s32_f64(double_scratch0().low(), vleft); |
| 1498 | __ vmov(result, double_scratch0().low()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1499 | |
ulan@chromium.org | 837a67e | 2013-06-11 15:39:48 +0000 | [diff] [blame] | 1500 | if (!instr->hydrogen()->CheckFlag( |
| 1501 | HInstruction::kAllUsesTruncatingToInt32)) { |
| 1502 | // Deopt if exact conversion to integer was not possible. |
| 1503 | // Use vright as scratch register. |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 1504 | __ vcvt_f64_s32(double_scratch0(), double_scratch0().low()); |
| 1505 | __ VFPCompareAndSetFlags(vleft, double_scratch0()); |
ulan@chromium.org | 837a67e | 2013-06-11 15:39:48 +0000 | [diff] [blame] | 1506 | DeoptimizeIf(ne, instr->environment()); |
| 1507 | } |
| 1508 | } |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1509 | } |
| 1510 | |
| 1511 | |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1512 | void LCodeGen::DoMultiplyAddD(LMultiplyAddD* instr) { |
| 1513 | DwVfpRegister addend = ToDoubleRegister(instr->addend()); |
| 1514 | DwVfpRegister multiplier = ToDoubleRegister(instr->multiplier()); |
| 1515 | DwVfpRegister multiplicand = ToDoubleRegister(instr->multiplicand()); |
| 1516 | |
| 1517 | // This is computed in-place. |
| 1518 | ASSERT(addend.is(ToDoubleRegister(instr->result()))); |
| 1519 | |
| 1520 | __ vmla(addend, multiplier, multiplicand); |
| 1521 | } |
| 1522 | |
| 1523 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1524 | void LCodeGen::DoMultiplySubD(LMultiplySubD* instr) { |
| 1525 | DwVfpRegister minuend = ToDoubleRegister(instr->minuend()); |
| 1526 | DwVfpRegister multiplier = ToDoubleRegister(instr->multiplier()); |
| 1527 | DwVfpRegister multiplicand = ToDoubleRegister(instr->multiplicand()); |
| 1528 | |
| 1529 | // This is computed in-place. |
| 1530 | ASSERT(minuend.is(ToDoubleRegister(instr->result()))); |
| 1531 | |
| 1532 | __ vmls(minuend, multiplier, multiplicand); |
| 1533 | } |
| 1534 | |
| 1535 | |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 1536 | void LCodeGen::DoMathFloorOfDiv(LMathFloorOfDiv* instr) { |
| 1537 | const Register result = ToRegister(instr->result()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1538 | const Register left = ToRegister(instr->left()); |
| 1539 | const Register remainder = ToRegister(instr->temp()); |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 1540 | const Register scratch = scratch0(); |
| 1541 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1542 | if (!CpuFeatures::IsSupported(SUDIV)) { |
| 1543 | // If the CPU doesn't support sdiv instruction, we only optimize when we |
| 1544 | // have magic numbers for the divisor. The standard integer division routine |
| 1545 | // is usually slower than transitionning to VFP. |
| 1546 | ASSERT(instr->right()->IsConstantOperand()); |
| 1547 | int32_t divisor = ToInteger32(LConstantOperand::cast(instr->right())); |
| 1548 | ASSERT(LChunkBuilder::HasMagicNumberForDivisor(divisor)); |
| 1549 | if (divisor < 0) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1550 | __ cmp(left, Operand::Zero()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1551 | DeoptimizeIf(eq, instr->environment()); |
| 1552 | } |
| 1553 | EmitSignedIntegerDivisionByConstant(result, |
| 1554 | left, |
| 1555 | divisor, |
| 1556 | remainder, |
| 1557 | scratch, |
| 1558 | instr->environment()); |
| 1559 | // We performed a truncating division. Correct the result if necessary. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1560 | __ cmp(remainder, Operand::Zero()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1561 | __ teq(remainder, Operand(divisor), ne); |
| 1562 | __ sub(result, result, Operand(1), LeaveCC, mi); |
| 1563 | } else { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1564 | CpuFeatureScope scope(masm(), SUDIV); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1565 | const Register right = ToRegister(instr->right()); |
| 1566 | |
| 1567 | // Check for x / 0. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1568 | __ cmp(right, Operand::Zero()); |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 1569 | DeoptimizeIf(eq, instr->environment()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1570 | |
| 1571 | // Check for (kMinInt / -1). |
| 1572 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1573 | Label left_not_min_int; |
| 1574 | __ cmp(left, Operand(kMinInt)); |
| 1575 | __ b(ne, &left_not_min_int); |
| 1576 | __ cmp(right, Operand(-1)); |
| 1577 | DeoptimizeIf(eq, instr->environment()); |
| 1578 | __ bind(&left_not_min_int); |
| 1579 | } |
| 1580 | |
| 1581 | // Check for (0 / -x) that will produce negative zero. |
| 1582 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1583 | __ cmp(right, Operand::Zero()); |
| 1584 | __ cmp(left, Operand::Zero(), mi); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1585 | // "right" can't be null because the code would have already been |
| 1586 | // deoptimized. The Z flag is set only if (right < 0) and (left == 0). |
| 1587 | // In this case we need to deoptimize to produce a -0. |
| 1588 | DeoptimizeIf(eq, instr->environment()); |
| 1589 | } |
| 1590 | |
| 1591 | Label done; |
| 1592 | __ sdiv(result, left, right); |
| 1593 | // If both operands have the same sign then we are done. |
| 1594 | __ eor(remainder, left, Operand(right), SetCC); |
| 1595 | __ b(pl, &done); |
| 1596 | |
| 1597 | // Check if the result needs to be corrected. |
| 1598 | __ mls(remainder, result, right, left); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1599 | __ cmp(remainder, Operand::Zero()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 1600 | __ sub(result, result, Operand(1), LeaveCC, ne); |
| 1601 | |
| 1602 | __ bind(&done); |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 1603 | } |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 1604 | } |
| 1605 | |
| 1606 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1607 | void LCodeGen::DoMulI(LMulI* instr) { |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1608 | Register result = ToRegister(instr->result()); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1609 | // Note that result may alias left. |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1610 | Register left = ToRegister(instr->left()); |
| 1611 | LOperand* right_op = instr->right(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1612 | |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1613 | bool bailout_on_minus_zero = |
| 1614 | instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero); |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 1615 | bool overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1616 | |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 1617 | if (right_op->IsConstantOperand()) { |
verwaest@chromium.org | 662436e | 2013-08-28 08:41:27 +0000 | [diff] [blame] | 1618 | int32_t constant = ToInteger32(LConstantOperand::cast(right_op)); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1619 | |
| 1620 | if (bailout_on_minus_zero && (constant < 0)) { |
| 1621 | // The case of a null constant will be handled separately. |
| 1622 | // If constant is negative and left is null, the result should be -0. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1623 | __ cmp(left, Operand::Zero()); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1624 | DeoptimizeIf(eq, instr->environment()); |
| 1625 | } |
| 1626 | |
| 1627 | switch (constant) { |
| 1628 | case -1: |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 1629 | if (overflow) { |
| 1630 | __ rsb(result, left, Operand::Zero(), SetCC); |
| 1631 | DeoptimizeIf(vs, instr->environment()); |
| 1632 | } else { |
| 1633 | __ rsb(result, left, Operand::Zero()); |
| 1634 | } |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1635 | break; |
| 1636 | case 0: |
| 1637 | if (bailout_on_minus_zero) { |
| 1638 | // If left is strictly negative and the constant is null, the |
| 1639 | // result is -0. Deoptimize if required, otherwise return 0. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1640 | __ cmp(left, Operand::Zero()); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1641 | DeoptimizeIf(mi, instr->environment()); |
| 1642 | } |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1643 | __ mov(result, Operand::Zero()); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1644 | break; |
| 1645 | case 1: |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1646 | __ Move(result, left); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1647 | break; |
| 1648 | default: |
| 1649 | // Multiplying by powers of two and powers of two plus or minus |
| 1650 | // one can be done faster with shifted operands. |
| 1651 | // For other constants we emit standard code. |
| 1652 | int32_t mask = constant >> 31; |
| 1653 | uint32_t constant_abs = (constant + mask) ^ mask; |
| 1654 | |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 1655 | if (IsPowerOf2(constant_abs)) { |
| 1656 | int32_t shift = WhichPowerOf2(constant_abs); |
| 1657 | __ mov(result, Operand(left, LSL, shift)); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1658 | // Correct the sign of the result is the constant is negative. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1659 | if (constant < 0) __ rsb(result, result, Operand::Zero()); |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 1660 | } else if (IsPowerOf2(constant_abs - 1)) { |
| 1661 | int32_t shift = WhichPowerOf2(constant_abs - 1); |
| 1662 | __ add(result, left, Operand(left, LSL, shift)); |
| 1663 | // Correct the sign of the result is the constant is negative. |
| 1664 | if (constant < 0) __ rsb(result, result, Operand::Zero()); |
| 1665 | } else if (IsPowerOf2(constant_abs + 1)) { |
| 1666 | int32_t shift = WhichPowerOf2(constant_abs + 1); |
| 1667 | __ rsb(result, left, Operand(left, LSL, shift)); |
| 1668 | // Correct the sign of the result is the constant is negative. |
| 1669 | if (constant < 0) __ rsb(result, result, Operand::Zero()); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1670 | } else { |
| 1671 | // Generate standard code. |
| 1672 | __ mov(ip, Operand(constant)); |
| 1673 | __ mul(result, left, ip); |
| 1674 | } |
| 1675 | } |
| 1676 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1677 | } else { |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 1678 | ASSERT(right_op->IsRegister()); |
| 1679 | Register right = ToRegister(right_op); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1680 | |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 1681 | if (overflow) { |
| 1682 | Register scratch = scratch0(); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1683 | // scratch:result = left * right. |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 1684 | if (instr->hydrogen()->representation().IsSmi()) { |
| 1685 | __ SmiUntag(result, left); |
| 1686 | __ smull(result, scratch, result, right); |
| 1687 | } else { |
| 1688 | __ smull(result, scratch, left, right); |
| 1689 | } |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1690 | __ cmp(scratch, Operand(result, ASR, 31)); |
| 1691 | DeoptimizeIf(ne, instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1692 | } else { |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 1693 | if (instr->hydrogen()->representation().IsSmi()) { |
| 1694 | __ SmiUntag(result, left); |
| 1695 | __ mul(result, result, right); |
| 1696 | } else { |
| 1697 | __ mul(result, left, right); |
| 1698 | } |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1699 | } |
| 1700 | |
| 1701 | if (bailout_on_minus_zero) { |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1702 | Label done; |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 1703 | __ teq(left, Operand(right)); |
| 1704 | __ b(pl, &done); |
| 1705 | // Bail out if the result is minus zero. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1706 | __ cmp(result, Operand::Zero()); |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 1707 | DeoptimizeIf(eq, instr->environment()); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1708 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1709 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1710 | } |
| 1711 | } |
| 1712 | |
| 1713 | |
| 1714 | void LCodeGen::DoBitI(LBitI* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1715 | LOperand* left_op = instr->left(); |
| 1716 | LOperand* right_op = instr->right(); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1717 | ASSERT(left_op->IsRegister()); |
| 1718 | Register left = ToRegister(left_op); |
| 1719 | Register result = ToRegister(instr->result()); |
| 1720 | Operand right(no_reg); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1721 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1722 | if (right_op->IsStackSlot() || right_op->IsArgument()) { |
| 1723 | right = Operand(EmitLoadRegister(right_op, ip)); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1724 | } else { |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1725 | ASSERT(right_op->IsRegister() || right_op->IsConstantOperand()); |
| 1726 | right = ToOperand(right_op); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1727 | } |
| 1728 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1729 | switch (instr->op()) { |
| 1730 | case Token::BIT_AND: |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1731 | __ and_(result, left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1732 | break; |
| 1733 | case Token::BIT_OR: |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1734 | __ orr(result, left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1735 | break; |
| 1736 | case Token::BIT_XOR: |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 1737 | if (right_op->IsConstantOperand() && right.immediate() == int32_t(~0)) { |
| 1738 | __ mvn(result, Operand(left)); |
| 1739 | } else { |
| 1740 | __ eor(result, left, right); |
| 1741 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1742 | break; |
| 1743 | default: |
| 1744 | UNREACHABLE(); |
| 1745 | break; |
| 1746 | } |
| 1747 | } |
| 1748 | |
| 1749 | |
| 1750 | void LCodeGen::DoShiftI(LShiftI* instr) { |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1751 | // Both 'left' and 'right' are "used at start" (see LCodeGen::DoShift), so |
| 1752 | // result may alias either of them. |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1753 | LOperand* right_op = instr->right(); |
| 1754 | Register left = ToRegister(instr->left()); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1755 | Register result = ToRegister(instr->result()); |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 1756 | Register scratch = scratch0(); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1757 | if (right_op->IsRegister()) { |
| 1758 | // Mask the right_op operand. |
| 1759 | __ and_(scratch, ToRegister(right_op), Operand(0x1F)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1760 | switch (instr->op()) { |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 1761 | case Token::ROR: |
| 1762 | __ mov(result, Operand(left, ROR, scratch)); |
| 1763 | break; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1764 | case Token::SAR: |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1765 | __ mov(result, Operand(left, ASR, scratch)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1766 | break; |
| 1767 | case Token::SHR: |
| 1768 | if (instr->can_deopt()) { |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1769 | __ mov(result, Operand(left, LSR, scratch), SetCC); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1770 | DeoptimizeIf(mi, instr->environment()); |
| 1771 | } else { |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1772 | __ mov(result, Operand(left, LSR, scratch)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1773 | } |
| 1774 | break; |
| 1775 | case Token::SHL: |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1776 | __ mov(result, Operand(left, LSL, scratch)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1777 | break; |
| 1778 | default: |
| 1779 | UNREACHABLE(); |
| 1780 | break; |
| 1781 | } |
| 1782 | } else { |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1783 | // Mask the right_op operand. |
| 1784 | int value = ToInteger32(LConstantOperand::cast(right_op)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1785 | uint8_t shift_count = static_cast<uint8_t>(value & 0x1F); |
| 1786 | switch (instr->op()) { |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 1787 | case Token::ROR: |
| 1788 | if (shift_count != 0) { |
| 1789 | __ mov(result, Operand(left, ROR, shift_count)); |
| 1790 | } else { |
| 1791 | __ Move(result, left); |
| 1792 | } |
| 1793 | break; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1794 | case Token::SAR: |
| 1795 | if (shift_count != 0) { |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1796 | __ mov(result, Operand(left, ASR, shift_count)); |
| 1797 | } else { |
| 1798 | __ Move(result, left); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1799 | } |
| 1800 | break; |
| 1801 | case Token::SHR: |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1802 | if (shift_count != 0) { |
| 1803 | __ mov(result, Operand(left, LSR, shift_count)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1804 | } else { |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1805 | if (instr->can_deopt()) { |
| 1806 | __ tst(left, Operand(0x80000000)); |
| 1807 | DeoptimizeIf(ne, instr->environment()); |
| 1808 | } |
| 1809 | __ Move(result, left); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1810 | } |
| 1811 | break; |
| 1812 | case Token::SHL: |
| 1813 | if (shift_count != 0) { |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1814 | if (instr->hydrogen_value()->representation().IsSmi() && |
| 1815 | instr->can_deopt()) { |
| 1816 | if (shift_count != 1) { |
| 1817 | __ mov(result, Operand(left, LSL, shift_count - 1)); |
| 1818 | __ SmiTag(result, result, SetCC); |
| 1819 | } else { |
| 1820 | __ SmiTag(result, left, SetCC); |
| 1821 | } |
| 1822 | DeoptimizeIf(vs, instr->environment()); |
| 1823 | } else { |
| 1824 | __ mov(result, Operand(left, LSL, shift_count)); |
| 1825 | } |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1826 | } else { |
| 1827 | __ Move(result, left); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1828 | } |
| 1829 | break; |
| 1830 | default: |
| 1831 | UNREACHABLE(); |
| 1832 | break; |
| 1833 | } |
| 1834 | } |
| 1835 | } |
| 1836 | |
| 1837 | |
| 1838 | void LCodeGen::DoSubI(LSubI* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1839 | LOperand* left = instr->left(); |
| 1840 | LOperand* right = instr->right(); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1841 | LOperand* result = instr->result(); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1842 | bool can_overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); |
| 1843 | SBit set_cond = can_overflow ? SetCC : LeaveCC; |
| 1844 | |
| 1845 | if (right->IsStackSlot() || right->IsArgument()) { |
| 1846 | Register right_reg = EmitLoadRegister(right, ip); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1847 | __ sub(ToRegister(result), ToRegister(left), Operand(right_reg), set_cond); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1848 | } else { |
| 1849 | ASSERT(right->IsRegister() || right->IsConstantOperand()); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1850 | __ sub(ToRegister(result), ToRegister(left), ToOperand(right), set_cond); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1851 | } |
| 1852 | |
| 1853 | if (can_overflow) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1854 | DeoptimizeIf(vs, instr->environment()); |
| 1855 | } |
| 1856 | } |
| 1857 | |
| 1858 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1859 | void LCodeGen::DoRSubI(LRSubI* instr) { |
| 1860 | LOperand* left = instr->left(); |
| 1861 | LOperand* right = instr->right(); |
| 1862 | LOperand* result = instr->result(); |
| 1863 | bool can_overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); |
| 1864 | SBit set_cond = can_overflow ? SetCC : LeaveCC; |
| 1865 | |
| 1866 | if (right->IsStackSlot() || right->IsArgument()) { |
| 1867 | Register right_reg = EmitLoadRegister(right, ip); |
| 1868 | __ rsb(ToRegister(result), ToRegister(left), Operand(right_reg), set_cond); |
| 1869 | } else { |
| 1870 | ASSERT(right->IsRegister() || right->IsConstantOperand()); |
| 1871 | __ rsb(ToRegister(result), ToRegister(left), ToOperand(right), set_cond); |
| 1872 | } |
| 1873 | |
| 1874 | if (can_overflow) { |
| 1875 | DeoptimizeIf(vs, instr->environment()); |
| 1876 | } |
| 1877 | } |
| 1878 | |
| 1879 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1880 | void LCodeGen::DoConstantI(LConstantI* instr) { |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 1881 | __ mov(ToRegister(instr->result()), Operand(instr->value())); |
| 1882 | } |
| 1883 | |
| 1884 | |
| 1885 | void LCodeGen::DoConstantS(LConstantS* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1886 | __ mov(ToRegister(instr->result()), Operand(instr->value())); |
| 1887 | } |
| 1888 | |
| 1889 | |
| 1890 | void LCodeGen::DoConstantD(LConstantD* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1891 | ASSERT(instr->result()->IsDoubleRegister()); |
| 1892 | DwVfpRegister result = ToDoubleRegister(instr->result()); |
| 1893 | double v = instr->value(); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1894 | __ Vmov(result, v, scratch0()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1895 | } |
| 1896 | |
| 1897 | |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1898 | void LCodeGen::DoConstantE(LConstantE* instr) { |
| 1899 | __ mov(ToRegister(instr->result()), Operand(instr->value())); |
| 1900 | } |
| 1901 | |
| 1902 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1903 | void LCodeGen::DoConstantT(LConstantT* instr) { |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 1904 | Handle<Object> value = instr->value(isolate()); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 1905 | AllowDeferredHandleDereference smi_check; |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 1906 | __ LoadObject(ToRegister(instr->result()), value); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1907 | } |
| 1908 | |
| 1909 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 1910 | void LCodeGen::DoMapEnumLength(LMapEnumLength* instr) { |
| 1911 | Register result = ToRegister(instr->result()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1912 | Register map = ToRegister(instr->value()); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 1913 | __ EnumLength(result, map); |
| 1914 | } |
| 1915 | |
| 1916 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1917 | void LCodeGen::DoElementsKind(LElementsKind* instr) { |
| 1918 | Register result = ToRegister(instr->result()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1919 | Register input = ToRegister(instr->value()); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1920 | |
| 1921 | // Load map into |result|. |
| 1922 | __ ldr(result, FieldMemOperand(input, HeapObject::kMapOffset)); |
| 1923 | // Load the map's "bit field 2" into |result|. We only need the first byte, |
| 1924 | // but the following bit field extraction takes care of that anyway. |
| 1925 | __ ldr(result, FieldMemOperand(result, Map::kBitField2Offset)); |
| 1926 | // Retrieve elements_kind from bit field 2. |
| 1927 | __ ubfx(result, result, Map::kElementsKindShift, Map::kElementsKindBitCount); |
| 1928 | } |
| 1929 | |
| 1930 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1931 | void LCodeGen::DoValueOf(LValueOf* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1932 | Register input = ToRegister(instr->value()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1933 | Register result = ToRegister(instr->result()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1934 | Register map = ToRegister(instr->temp()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1935 | Label done; |
| 1936 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1937 | if (!instr->hydrogen()->value()->IsHeapObject()) { |
| 1938 | // If the object is a smi return the object. |
| 1939 | __ SmiTst(input); |
| 1940 | __ Move(result, input, eq); |
| 1941 | __ b(eq, &done); |
| 1942 | } |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1943 | |
| 1944 | // If the object is not a value type, return the object. |
| 1945 | __ CompareObjectType(input, map, map, JS_VALUE_TYPE); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1946 | __ Move(result, input, ne); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1947 | __ b(ne, &done); |
| 1948 | __ ldr(result, FieldMemOperand(input, JSValue::kValueOffset)); |
| 1949 | |
| 1950 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1951 | } |
| 1952 | |
| 1953 | |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1954 | void LCodeGen::DoDateField(LDateField* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1955 | Register object = ToRegister(instr->date()); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1956 | Register result = ToRegister(instr->result()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1957 | Register scratch = ToRegister(instr->temp()); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1958 | Smi* index = instr->index(); |
| 1959 | Label runtime, done; |
| 1960 | ASSERT(object.is(result)); |
| 1961 | ASSERT(object.is(r0)); |
| 1962 | ASSERT(!scratch.is(scratch0())); |
| 1963 | ASSERT(!scratch.is(object)); |
| 1964 | |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1965 | __ SmiTst(object); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 1966 | DeoptimizeIf(eq, instr->environment()); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1967 | __ CompareObjectType(object, scratch, scratch, JS_DATE_TYPE); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 1968 | DeoptimizeIf(ne, instr->environment()); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1969 | |
| 1970 | if (index->value() == 0) { |
| 1971 | __ ldr(result, FieldMemOperand(object, JSDate::kValueOffset)); |
| 1972 | } else { |
| 1973 | if (index->value() < JSDate::kFirstUncachedField) { |
| 1974 | ExternalReference stamp = ExternalReference::date_cache_stamp(isolate()); |
| 1975 | __ mov(scratch, Operand(stamp)); |
| 1976 | __ ldr(scratch, MemOperand(scratch)); |
| 1977 | __ ldr(scratch0(), FieldMemOperand(object, JSDate::kCacheStampOffset)); |
| 1978 | __ cmp(scratch, scratch0()); |
| 1979 | __ b(ne, &runtime); |
| 1980 | __ ldr(result, FieldMemOperand(object, JSDate::kValueOffset + |
| 1981 | kPointerSize * index->value())); |
| 1982 | __ jmp(&done); |
| 1983 | } |
| 1984 | __ bind(&runtime); |
| 1985 | __ PrepareCallCFunction(2, scratch); |
| 1986 | __ mov(r1, Operand(index)); |
| 1987 | __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2); |
| 1988 | __ bind(&done); |
| 1989 | } |
| 1990 | } |
| 1991 | |
| 1992 | |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 1993 | void LCodeGen::DoSeqStringSetChar(LSeqStringSetChar* instr) { |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 1994 | Register string = ToRegister(instr->string()); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 1995 | LOperand* index_op = instr->index(); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 1996 | Register value = ToRegister(instr->value()); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 1997 | Register scratch = scratch0(); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 1998 | String::Encoding encoding = instr->encoding(); |
| 1999 | |
| 2000 | if (FLAG_debug_code) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 2001 | __ ldr(scratch, FieldMemOperand(string, HeapObject::kMapOffset)); |
| 2002 | __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset)); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 2003 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 2004 | __ and_(scratch, scratch, |
| 2005 | Operand(kStringRepresentationMask | kStringEncodingMask)); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 2006 | static const uint32_t one_byte_seq_type = kSeqStringTag | kOneByteStringTag; |
| 2007 | static const uint32_t two_byte_seq_type = kSeqStringTag | kTwoByteStringTag; |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 2008 | __ cmp(scratch, Operand(encoding == String::ONE_BYTE_ENCODING |
| 2009 | ? one_byte_seq_type : two_byte_seq_type)); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 2010 | __ Check(eq, kUnexpectedStringType); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 2011 | } |
| 2012 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 2013 | if (index_op->IsConstantOperand()) { |
| 2014 | int constant_index = ToInteger32(LConstantOperand::cast(index_op)); |
| 2015 | if (encoding == String::ONE_BYTE_ENCODING) { |
| 2016 | __ strb(value, |
| 2017 | FieldMemOperand(string, SeqString::kHeaderSize + constant_index)); |
| 2018 | } else { |
| 2019 | __ strh(value, |
| 2020 | FieldMemOperand(string, SeqString::kHeaderSize + constant_index * 2)); |
| 2021 | } |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 2022 | } else { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 2023 | Register index = ToRegister(index_op); |
| 2024 | if (encoding == String::ONE_BYTE_ENCODING) { |
| 2025 | __ add(scratch, string, Operand(index)); |
| 2026 | __ strb(value, FieldMemOperand(scratch, SeqString::kHeaderSize)); |
| 2027 | } else { |
| 2028 | __ add(scratch, string, Operand(index, LSL, 1)); |
| 2029 | __ strh(value, FieldMemOperand(scratch, SeqString::kHeaderSize)); |
| 2030 | } |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 2031 | } |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 2032 | } |
| 2033 | |
| 2034 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2035 | void LCodeGen::DoThrow(LThrow* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2036 | Register input_reg = EmitLoadRegister(instr->value(), ip); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2037 | __ push(input_reg); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 2038 | ASSERT(ToRegister(instr->context()).is(cp)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2039 | CallRuntime(Runtime::kThrow, 1, instr); |
| 2040 | |
| 2041 | if (FLAG_debug_code) { |
| 2042 | __ stop("Unreachable code."); |
| 2043 | } |
| 2044 | } |
| 2045 | |
| 2046 | |
| 2047 | void LCodeGen::DoAddI(LAddI* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2048 | LOperand* left = instr->left(); |
| 2049 | LOperand* right = instr->right(); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2050 | LOperand* result = instr->result(); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2051 | bool can_overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); |
| 2052 | SBit set_cond = can_overflow ? SetCC : LeaveCC; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2053 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2054 | if (right->IsStackSlot() || right->IsArgument()) { |
| 2055 | Register right_reg = EmitLoadRegister(right, ip); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2056 | __ add(ToRegister(result), ToRegister(left), Operand(right_reg), set_cond); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2057 | } else { |
| 2058 | ASSERT(right->IsRegister() || right->IsConstantOperand()); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2059 | __ add(ToRegister(result), ToRegister(left), ToOperand(right), set_cond); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2060 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2061 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2062 | if (can_overflow) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2063 | DeoptimizeIf(vs, instr->environment()); |
| 2064 | } |
| 2065 | } |
| 2066 | |
| 2067 | |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2068 | void LCodeGen::DoMathMinMax(LMathMinMax* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2069 | LOperand* left = instr->left(); |
| 2070 | LOperand* right = instr->right(); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2071 | HMathMinMax::Operation operation = instr->hydrogen()->operation(); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 2072 | if (instr->hydrogen()->representation().IsSmiOrInteger32()) { |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2073 | Condition condition = (operation == HMathMinMax::kMathMin) ? le : ge; |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2074 | Register left_reg = ToRegister(left); |
| 2075 | Operand right_op = (right->IsRegister() || right->IsConstantOperand()) |
| 2076 | ? ToOperand(right) |
| 2077 | : Operand(EmitLoadRegister(right, ip)); |
| 2078 | Register result_reg = ToRegister(instr->result()); |
| 2079 | __ cmp(left_reg, right_op); |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2080 | __ Move(result_reg, left_reg, condition); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2081 | __ mov(result_reg, right_op, LeaveCC, NegateCondition(condition)); |
| 2082 | } else { |
| 2083 | ASSERT(instr->hydrogen()->representation().IsDouble()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2084 | DwVfpRegister left_reg = ToDoubleRegister(left); |
| 2085 | DwVfpRegister right_reg = ToDoubleRegister(right); |
| 2086 | DwVfpRegister result_reg = ToDoubleRegister(instr->result()); |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2087 | Label result_is_nan, return_left, return_right, check_zero, done; |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2088 | __ VFPCompareAndSetFlags(left_reg, right_reg); |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2089 | if (operation == HMathMinMax::kMathMin) { |
| 2090 | __ b(mi, &return_left); |
| 2091 | __ b(gt, &return_right); |
| 2092 | } else { |
| 2093 | __ b(mi, &return_right); |
| 2094 | __ b(gt, &return_left); |
| 2095 | } |
| 2096 | __ b(vs, &result_is_nan); |
| 2097 | // Left equals right => check for -0. |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2098 | __ VFPCompareAndSetFlags(left_reg, 0.0); |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2099 | if (left_reg.is(result_reg) || right_reg.is(result_reg)) { |
| 2100 | __ b(ne, &done); // left == right != 0. |
| 2101 | } else { |
| 2102 | __ b(ne, &return_left); // left == right != 0. |
| 2103 | } |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2104 | // At this point, both left and right are either 0 or -0. |
| 2105 | if (operation == HMathMinMax::kMathMin) { |
| 2106 | // We could use a single 'vorr' instruction here if we had NEON support. |
| 2107 | __ vneg(left_reg, left_reg); |
| 2108 | __ vsub(result_reg, left_reg, right_reg); |
| 2109 | __ vneg(result_reg, result_reg); |
| 2110 | } else { |
| 2111 | // Since we operate on +0 and/or -0, vadd and vand have the same effect; |
| 2112 | // the decision for vadd is easy because vand is a NEON instruction. |
| 2113 | __ vadd(result_reg, left_reg, right_reg); |
| 2114 | } |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2115 | __ b(&done); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2116 | |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2117 | __ bind(&result_is_nan); |
| 2118 | __ vadd(result_reg, left_reg, right_reg); |
| 2119 | __ b(&done); |
| 2120 | |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2121 | __ bind(&return_right); |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2122 | __ Move(result_reg, right_reg); |
| 2123 | if (!left_reg.is(result_reg)) { |
| 2124 | __ b(&done); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2125 | } |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2126 | |
| 2127 | __ bind(&return_left); |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2128 | __ Move(result_reg, left_reg); |
| 2129 | |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 2130 | __ bind(&done); |
| 2131 | } |
| 2132 | } |
| 2133 | |
| 2134 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2135 | void LCodeGen::DoArithmeticD(LArithmeticD* instr) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2136 | DwVfpRegister left = ToDoubleRegister(instr->left()); |
| 2137 | DwVfpRegister right = ToDoubleRegister(instr->right()); |
| 2138 | DwVfpRegister result = ToDoubleRegister(instr->result()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2139 | switch (instr->op()) { |
| 2140 | case Token::ADD: |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2141 | __ vadd(result, left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2142 | break; |
| 2143 | case Token::SUB: |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2144 | __ vsub(result, left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2145 | break; |
| 2146 | case Token::MUL: |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2147 | __ vmul(result, left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2148 | break; |
| 2149 | case Token::DIV: |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2150 | __ vdiv(result, left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2151 | break; |
| 2152 | case Token::MOD: { |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2153 | // Save r0-r3 on the stack. |
| 2154 | __ stm(db_w, sp, r0.bit() | r1.bit() | r2.bit() | r3.bit()); |
| 2155 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 2156 | __ PrepareCallCFunction(0, 2, scratch0()); |
| 2157 | __ SetCallCDoubleArguments(left, right); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2158 | __ CallCFunction( |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 2159 | ExternalReference::double_fp_operation(Token::MOD, isolate()), |
| 2160 | 0, 2); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2161 | // Move the result in the double result register. |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2162 | __ GetCFunctionDoubleResult(result); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2163 | |
| 2164 | // Restore r0-r3. |
| 2165 | __ ldm(ia_w, sp, r0.bit() | r1.bit() | r2.bit() | r3.bit()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2166 | break; |
| 2167 | } |
| 2168 | default: |
| 2169 | UNREACHABLE(); |
| 2170 | break; |
| 2171 | } |
| 2172 | } |
| 2173 | |
| 2174 | |
| 2175 | void LCodeGen::DoArithmeticT(LArithmeticT* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 2176 | ASSERT(ToRegister(instr->context()).is(cp)); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2177 | ASSERT(ToRegister(instr->left()).is(r1)); |
| 2178 | ASSERT(ToRegister(instr->right()).is(r0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2179 | ASSERT(ToRegister(instr->result()).is(r0)); |
| 2180 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2181 | BinaryOpStub stub(instr->op(), NO_OVERWRITE); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2182 | // Block literal pool emission to ensure nop indicating no inlined smi code |
| 2183 | // is in the correct position. |
| 2184 | Assembler::BlockConstPoolScope block_const_pool(masm()); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2185 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 2186 | __ nop(); // Signals no inlined code. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2187 | } |
| 2188 | |
| 2189 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2190 | int LCodeGen::GetNextEmittedBlock() const { |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 2191 | for (int i = current_block_ + 1; i < graph()->blocks()->length(); ++i) { |
| 2192 | if (!chunk_->GetLabel(i)->HasReplacement()) return i; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2193 | } |
| 2194 | return -1; |
| 2195 | } |
| 2196 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2197 | template<class InstrType> |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 2198 | void LCodeGen::EmitBranch(InstrType instr, Condition condition) { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2199 | int left_block = instr->TrueDestination(chunk_); |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 2200 | int right_block = instr->FalseDestination(chunk_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2201 | |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 2202 | int next_block = GetNextEmittedBlock(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2203 | |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 2204 | if (right_block == left_block || condition == al) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2205 | EmitGoto(left_block); |
| 2206 | } else if (left_block == next_block) { |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 2207 | __ b(NegateCondition(condition), chunk_->GetAssemblyLabel(right_block)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2208 | } else if (right_block == next_block) { |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 2209 | __ b(condition, chunk_->GetAssemblyLabel(left_block)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2210 | } else { |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 2211 | __ b(condition, chunk_->GetAssemblyLabel(left_block)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2212 | __ b(chunk_->GetAssemblyLabel(right_block)); |
| 2213 | } |
| 2214 | } |
| 2215 | |
| 2216 | |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 2217 | template<class InstrType> |
| 2218 | void LCodeGen::EmitFalseBranch(InstrType instr, Condition condition) { |
| 2219 | int false_block = instr->FalseDestination(chunk_); |
| 2220 | __ b(condition, chunk_->GetAssemblyLabel(false_block)); |
| 2221 | } |
| 2222 | |
| 2223 | |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 2224 | void LCodeGen::DoDebugBreak(LDebugBreak* instr) { |
| 2225 | __ stop("LBreak"); |
| 2226 | } |
| 2227 | |
| 2228 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2229 | void LCodeGen::DoBranch(LBranch* instr) { |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 2230 | Representation r = instr->hydrogen()->value()->representation(); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 2231 | if (r.IsInteger32() || r.IsSmi()) { |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 2232 | ASSERT(!info()->IsStub()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2233 | Register reg = ToRegister(instr->value()); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2234 | __ cmp(reg, Operand::Zero()); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2235 | EmitBranch(instr, ne); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2236 | } else if (r.IsDouble()) { |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 2237 | ASSERT(!info()->IsStub()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2238 | DwVfpRegister reg = ToDoubleRegister(instr->value()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2239 | // Test the double value. Zero and NaN are false. |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2240 | __ VFPCompareAndSetFlags(reg, 0.0); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2241 | __ cmp(r0, r0, vs); // If NaN, set the Z flag. (NaN -> false) |
| 2242 | EmitBranch(instr, ne); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2243 | } else { |
| 2244 | ASSERT(r.IsTagged()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2245 | Register reg = ToRegister(instr->value()); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2246 | HType type = instr->hydrogen()->value()->type(); |
| 2247 | if (type.IsBoolean()) { |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 2248 | ASSERT(!info()->IsStub()); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2249 | __ CompareRoot(reg, Heap::kTrueValueRootIndex); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2250 | EmitBranch(instr, eq); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2251 | } else if (type.IsSmi()) { |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 2252 | ASSERT(!info()->IsStub()); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2253 | __ cmp(reg, Operand::Zero()); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2254 | EmitBranch(instr, ne); |
| 2255 | } else if (type.IsJSArray()) { |
| 2256 | ASSERT(!info()->IsStub()); |
| 2257 | EmitBranch(instr, al); |
| 2258 | } else if (type.IsHeapNumber()) { |
| 2259 | ASSERT(!info()->IsStub()); |
| 2260 | DwVfpRegister dbl_scratch = double_scratch0(); |
| 2261 | __ vldr(dbl_scratch, FieldMemOperand(reg, HeapNumber::kValueOffset)); |
| 2262 | // Test the double value. Zero and NaN are false. |
| 2263 | __ VFPCompareAndSetFlags(dbl_scratch, 0.0); |
| 2264 | __ cmp(r0, r0, vs); // If NaN, set the Z flag. (NaN) |
| 2265 | EmitBranch(instr, ne); |
| 2266 | } else if (type.IsString()) { |
| 2267 | ASSERT(!info()->IsStub()); |
| 2268 | __ ldr(ip, FieldMemOperand(reg, String::kLengthOffset)); |
| 2269 | __ cmp(ip, Operand::Zero()); |
| 2270 | EmitBranch(instr, ne); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2271 | } else { |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2272 | ToBooleanStub::Types expected = instr->hydrogen()->expected_input_types(); |
| 2273 | // Avoid deopts in the case where we've never executed this path before. |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2274 | if (expected.IsEmpty()) expected = ToBooleanStub::Types::Generic(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2275 | |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2276 | if (expected.Contains(ToBooleanStub::UNDEFINED)) { |
| 2277 | // undefined -> false. |
| 2278 | __ CompareRoot(reg, Heap::kUndefinedValueRootIndex); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2279 | __ b(eq, instr->FalseLabel(chunk_)); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2280 | } |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2281 | if (expected.Contains(ToBooleanStub::BOOLEAN)) { |
| 2282 | // Boolean -> its value. |
| 2283 | __ CompareRoot(reg, Heap::kTrueValueRootIndex); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2284 | __ b(eq, instr->TrueLabel(chunk_)); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2285 | __ CompareRoot(reg, Heap::kFalseValueRootIndex); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2286 | __ b(eq, instr->FalseLabel(chunk_)); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2287 | } |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2288 | if (expected.Contains(ToBooleanStub::NULL_TYPE)) { |
| 2289 | // 'null' -> false. |
| 2290 | __ CompareRoot(reg, Heap::kNullValueRootIndex); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2291 | __ b(eq, instr->FalseLabel(chunk_)); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2292 | } |
| 2293 | |
| 2294 | if (expected.Contains(ToBooleanStub::SMI)) { |
| 2295 | // Smis: 0 -> false, all other -> true. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2296 | __ cmp(reg, Operand::Zero()); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2297 | __ b(eq, instr->FalseLabel(chunk_)); |
| 2298 | __ JumpIfSmi(reg, instr->TrueLabel(chunk_)); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2299 | } else if (expected.NeedsMap()) { |
| 2300 | // If we need a map later and have a Smi -> deopt. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 2301 | __ SmiTst(reg); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2302 | DeoptimizeIf(eq, instr->environment()); |
| 2303 | } |
| 2304 | |
| 2305 | const Register map = scratch0(); |
| 2306 | if (expected.NeedsMap()) { |
| 2307 | __ ldr(map, FieldMemOperand(reg, HeapObject::kMapOffset)); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 2308 | |
| 2309 | if (expected.CanBeUndetectable()) { |
| 2310 | // Undetectable -> false. |
| 2311 | __ ldrb(ip, FieldMemOperand(map, Map::kBitFieldOffset)); |
| 2312 | __ tst(ip, Operand(1 << Map::kIsUndetectable)); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2313 | __ b(ne, instr->FalseLabel(chunk_)); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 2314 | } |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2315 | } |
| 2316 | |
| 2317 | if (expected.Contains(ToBooleanStub::SPEC_OBJECT)) { |
| 2318 | // spec object -> true. |
| 2319 | __ CompareInstanceType(map, ip, FIRST_SPEC_OBJECT_TYPE); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2320 | __ b(ge, instr->TrueLabel(chunk_)); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2321 | } |
| 2322 | |
| 2323 | if (expected.Contains(ToBooleanStub::STRING)) { |
| 2324 | // String value -> false iff empty. |
| 2325 | Label not_string; |
| 2326 | __ CompareInstanceType(map, ip, FIRST_NONSTRING_TYPE); |
| 2327 | __ b(ge, ¬_string); |
| 2328 | __ ldr(ip, FieldMemOperand(reg, String::kLengthOffset)); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2329 | __ cmp(ip, Operand::Zero()); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2330 | __ b(ne, instr->TrueLabel(chunk_)); |
| 2331 | __ b(instr->FalseLabel(chunk_)); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2332 | __ bind(¬_string); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2333 | } |
| 2334 | |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 2335 | if (expected.Contains(ToBooleanStub::SYMBOL)) { |
| 2336 | // Symbol value -> true. |
| 2337 | __ CompareInstanceType(map, ip, SYMBOL_TYPE); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2338 | __ b(eq, instr->TrueLabel(chunk_)); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 2339 | } |
| 2340 | |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2341 | if (expected.Contains(ToBooleanStub::HEAP_NUMBER)) { |
| 2342 | // heap number -> false iff +0, -0, or NaN. |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2343 | DwVfpRegister dbl_scratch = double_scratch0(); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2344 | Label not_heap_number; |
| 2345 | __ CompareRoot(map, Heap::kHeapNumberMapRootIndex); |
| 2346 | __ b(ne, ¬_heap_number); |
| 2347 | __ vldr(dbl_scratch, FieldMemOperand(reg, HeapNumber::kValueOffset)); |
| 2348 | __ VFPCompareAndSetFlags(dbl_scratch, 0.0); |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 2349 | __ cmp(r0, r0, vs); // NaN -> false. |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2350 | __ b(eq, instr->FalseLabel(chunk_)); // +0, -0 -> false. |
| 2351 | __ b(instr->TrueLabel(chunk_)); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2352 | __ bind(¬_heap_number); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2353 | } |
| 2354 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2355 | if (!expected.IsGeneric()) { |
| 2356 | // We've seen something for the first time -> deopt. |
| 2357 | // This can only happen if we are not generic already. |
| 2358 | DeoptimizeIf(al, instr->environment()); |
| 2359 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2360 | } |
| 2361 | } |
| 2362 | } |
| 2363 | |
| 2364 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 2365 | void LCodeGen::EmitGoto(int block) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2366 | if (!IsNextEmittedBlock(block)) { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2367 | __ jmp(chunk_->GetAssemblyLabel(LookupDestination(block))); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2368 | } |
| 2369 | } |
| 2370 | |
| 2371 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2372 | void LCodeGen::DoGoto(LGoto* instr) { |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 2373 | EmitGoto(instr->block_id()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2374 | } |
| 2375 | |
| 2376 | |
| 2377 | Condition LCodeGen::TokenToCondition(Token::Value op, bool is_unsigned) { |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2378 | Condition cond = kNoCondition; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2379 | switch (op) { |
| 2380 | case Token::EQ: |
| 2381 | case Token::EQ_STRICT: |
| 2382 | cond = eq; |
| 2383 | break; |
| 2384 | case Token::LT: |
| 2385 | cond = is_unsigned ? lo : lt; |
| 2386 | break; |
| 2387 | case Token::GT: |
| 2388 | cond = is_unsigned ? hi : gt; |
| 2389 | break; |
| 2390 | case Token::LTE: |
| 2391 | cond = is_unsigned ? ls : le; |
| 2392 | break; |
| 2393 | case Token::GTE: |
| 2394 | cond = is_unsigned ? hs : ge; |
| 2395 | break; |
| 2396 | case Token::IN: |
| 2397 | case Token::INSTANCEOF: |
| 2398 | default: |
| 2399 | UNREACHABLE(); |
| 2400 | } |
| 2401 | return cond; |
| 2402 | } |
| 2403 | |
| 2404 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 2405 | void LCodeGen::DoCompareNumericAndBranch(LCompareNumericAndBranch* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2406 | LOperand* left = instr->left(); |
| 2407 | LOperand* right = instr->right(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2408 | Condition cond = TokenToCondition(instr->op(), false); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2409 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2410 | if (left->IsConstantOperand() && right->IsConstantOperand()) { |
| 2411 | // We can statically evaluate the comparison. |
| 2412 | double left_val = ToDouble(LConstantOperand::cast(left)); |
| 2413 | double right_val = ToDouble(LConstantOperand::cast(right)); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2414 | int next_block = EvalComparison(instr->op(), left_val, right_val) ? |
| 2415 | instr->TrueDestination(chunk_) : instr->FalseDestination(chunk_); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2416 | EmitGoto(next_block); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2417 | } else { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2418 | if (instr->is_double()) { |
| 2419 | // Compare left and right operands as doubles and load the |
| 2420 | // resulting flags into the normal status register. |
| 2421 | __ VFPCompareAndSetFlags(ToDoubleRegister(left), ToDoubleRegister(right)); |
| 2422 | // If a NaN is involved, i.e. the result is unordered (V set), |
| 2423 | // jump to false block label. |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2424 | __ b(vs, instr->FalseLabel(chunk_)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2425 | } else { |
| 2426 | if (right->IsConstantOperand()) { |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 2427 | int32_t value = ToInteger32(LConstantOperand::cast(right)); |
| 2428 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 2429 | __ cmp(ToRegister(left), Operand(Smi::FromInt(value))); |
| 2430 | } else { |
| 2431 | __ cmp(ToRegister(left), Operand(value)); |
| 2432 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2433 | } else if (left->IsConstantOperand()) { |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 2434 | int32_t value = ToInteger32(LConstantOperand::cast(left)); |
| 2435 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 2436 | __ cmp(ToRegister(right), Operand(Smi::FromInt(value))); |
| 2437 | } else { |
| 2438 | __ cmp(ToRegister(right), Operand(value)); |
| 2439 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2440 | // We transposed the operands. Reverse the condition. |
| 2441 | cond = ReverseCondition(cond); |
| 2442 | } else { |
| 2443 | __ cmp(ToRegister(left), ToRegister(right)); |
| 2444 | } |
| 2445 | } |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2446 | EmitBranch(instr, cond); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2447 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2448 | } |
| 2449 | |
| 2450 | |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 2451 | void LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2452 | Register left = ToRegister(instr->left()); |
| 2453 | Register right = ToRegister(instr->right()); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2454 | |
| 2455 | __ cmp(left, Operand(right)); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2456 | EmitBranch(instr, eq); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2457 | } |
| 2458 | |
| 2459 | |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 2460 | void LCodeGen::DoCmpHoleAndBranch(LCmpHoleAndBranch* instr) { |
| 2461 | if (instr->hydrogen()->representation().IsTagged()) { |
| 2462 | Register input_reg = ToRegister(instr->object()); |
| 2463 | __ mov(ip, Operand(factory()->the_hole_value())); |
| 2464 | __ cmp(input_reg, ip); |
| 2465 | EmitBranch(instr, eq); |
| 2466 | return; |
| 2467 | } |
| 2468 | |
| 2469 | DwVfpRegister input_reg = ToDoubleRegister(instr->object()); |
| 2470 | __ VFPCompareAndSetFlags(input_reg, input_reg); |
| 2471 | EmitFalseBranch(instr, vc); |
| 2472 | |
| 2473 | Register scratch = scratch0(); |
| 2474 | __ VmovHigh(scratch, input_reg); |
| 2475 | __ cmp(scratch, Operand(kHoleNanUpper32)); |
| 2476 | EmitBranch(instr, eq); |
| 2477 | } |
| 2478 | |
| 2479 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2480 | Condition LCodeGen::EmitIsObject(Register input, |
| 2481 | Register temp1, |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2482 | Label* is_not_object, |
| 2483 | Label* is_object) { |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2484 | Register temp2 = scratch0(); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2485 | __ JumpIfSmi(input, is_not_object); |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 2486 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 2487 | __ LoadRoot(temp2, Heap::kNullValueRootIndex); |
| 2488 | __ cmp(input, temp2); |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 2489 | __ b(eq, is_object); |
| 2490 | |
| 2491 | // Load map. |
| 2492 | __ ldr(temp1, FieldMemOperand(input, HeapObject::kMapOffset)); |
| 2493 | // Undetectable objects behave like undefined. |
| 2494 | __ ldrb(temp2, FieldMemOperand(temp1, Map::kBitFieldOffset)); |
| 2495 | __ tst(temp2, Operand(1 << Map::kIsUndetectable)); |
| 2496 | __ b(ne, is_not_object); |
| 2497 | |
| 2498 | // Load instance type and check that it is in object type range. |
| 2499 | __ ldrb(temp2, FieldMemOperand(temp1, Map::kInstanceTypeOffset)); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 2500 | __ cmp(temp2, Operand(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 2501 | __ b(lt, is_not_object); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 2502 | __ cmp(temp2, Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 2503 | return le; |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2504 | } |
| 2505 | |
| 2506 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2507 | void LCodeGen::DoIsObjectAndBranch(LIsObjectAndBranch* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2508 | Register reg = ToRegister(instr->value()); |
| 2509 | Register temp1 = ToRegister(instr->temp()); |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 2510 | |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 2511 | Condition true_cond = |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2512 | EmitIsObject(reg, temp1, |
| 2513 | instr->FalseLabel(chunk_), instr->TrueLabel(chunk_)); |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 2514 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2515 | EmitBranch(instr, true_cond); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2516 | } |
| 2517 | |
| 2518 | |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2519 | Condition LCodeGen::EmitIsString(Register input, |
| 2520 | Register temp1, |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2521 | Label* is_not_string, |
| 2522 | SmiCheck check_needed = INLINE_SMI_CHECK) { |
| 2523 | if (check_needed == INLINE_SMI_CHECK) { |
| 2524 | __ JumpIfSmi(input, is_not_string); |
| 2525 | } |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2526 | __ CompareObjectType(input, temp1, temp1, FIRST_NONSTRING_TYPE); |
| 2527 | |
| 2528 | return lt; |
| 2529 | } |
| 2530 | |
| 2531 | |
| 2532 | void LCodeGen::DoIsStringAndBranch(LIsStringAndBranch* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2533 | Register reg = ToRegister(instr->value()); |
| 2534 | Register temp1 = ToRegister(instr->temp()); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2535 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2536 | SmiCheck check_needed = |
| 2537 | instr->hydrogen()->value()->IsHeapObject() |
| 2538 | ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2539 | Condition true_cond = |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2540 | EmitIsString(reg, temp1, instr->FalseLabel(chunk_), check_needed); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2541 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2542 | EmitBranch(instr, true_cond); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2543 | } |
| 2544 | |
| 2545 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2546 | void LCodeGen::DoIsSmiAndBranch(LIsSmiAndBranch* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2547 | Register input_reg = EmitLoadRegister(instr->value(), ip); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 2548 | __ SmiTst(input_reg); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2549 | EmitBranch(instr, eq); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2550 | } |
| 2551 | |
| 2552 | |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2553 | void LCodeGen::DoIsUndetectableAndBranch(LIsUndetectableAndBranch* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2554 | Register input = ToRegister(instr->value()); |
| 2555 | Register temp = ToRegister(instr->temp()); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2556 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2557 | if (!instr->hydrogen()->value()->IsHeapObject()) { |
| 2558 | __ JumpIfSmi(input, instr->FalseLabel(chunk_)); |
| 2559 | } |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2560 | __ ldr(temp, FieldMemOperand(input, HeapObject::kMapOffset)); |
| 2561 | __ ldrb(temp, FieldMemOperand(temp, Map::kBitFieldOffset)); |
| 2562 | __ tst(temp, Operand(1 << Map::kIsUndetectable)); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2563 | EmitBranch(instr, ne); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 2564 | } |
| 2565 | |
| 2566 | |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2567 | static Condition ComputeCompareCondition(Token::Value op) { |
| 2568 | switch (op) { |
| 2569 | case Token::EQ_STRICT: |
| 2570 | case Token::EQ: |
| 2571 | return eq; |
| 2572 | case Token::LT: |
| 2573 | return lt; |
| 2574 | case Token::GT: |
| 2575 | return gt; |
| 2576 | case Token::LTE: |
| 2577 | return le; |
| 2578 | case Token::GTE: |
| 2579 | return ge; |
| 2580 | default: |
| 2581 | UNREACHABLE(); |
| 2582 | return kNoCondition; |
| 2583 | } |
| 2584 | } |
| 2585 | |
| 2586 | |
| 2587 | void LCodeGen::DoStringCompareAndBranch(LStringCompareAndBranch* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 2588 | ASSERT(ToRegister(instr->context()).is(cp)); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2589 | Token::Value op = instr->op(); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2590 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2591 | Handle<Code> ic = CompareIC::GetUninitialized(isolate(), op); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2592 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2593 | // This instruction also signals no smi code inlined. |
| 2594 | __ cmp(r0, Operand::Zero()); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2595 | |
| 2596 | Condition condition = ComputeCompareCondition(op); |
| 2597 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2598 | EmitBranch(instr, condition); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2599 | } |
| 2600 | |
| 2601 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 2602 | static InstanceType TestType(HHasInstanceTypeAndBranch* instr) { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2603 | InstanceType from = instr->from(); |
| 2604 | InstanceType to = instr->to(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2605 | if (from == FIRST_TYPE) return to; |
| 2606 | ASSERT(from == to || to == LAST_TYPE); |
| 2607 | return from; |
| 2608 | } |
| 2609 | |
| 2610 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 2611 | static Condition BranchCondition(HHasInstanceTypeAndBranch* instr) { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2612 | InstanceType from = instr->from(); |
| 2613 | InstanceType to = instr->to(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2614 | if (from == to) return eq; |
| 2615 | if (to == LAST_TYPE) return hs; |
| 2616 | if (from == FIRST_TYPE) return ls; |
| 2617 | UNREACHABLE(); |
| 2618 | return eq; |
| 2619 | } |
| 2620 | |
| 2621 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2622 | void LCodeGen::DoHasInstanceTypeAndBranch(LHasInstanceTypeAndBranch* instr) { |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 2623 | Register scratch = scratch0(); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2624 | Register input = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2625 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2626 | if (!instr->hydrogen()->value()->IsHeapObject()) { |
| 2627 | __ JumpIfSmi(input, instr->FalseLabel(chunk_)); |
| 2628 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2629 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2630 | __ CompareObjectType(input, scratch, scratch, TestType(instr->hydrogen())); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2631 | EmitBranch(instr, BranchCondition(instr->hydrogen())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2632 | } |
| 2633 | |
| 2634 | |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 2635 | void LCodeGen::DoGetCachedArrayIndex(LGetCachedArrayIndex* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2636 | Register input = ToRegister(instr->value()); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 2637 | Register result = ToRegister(instr->result()); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 2638 | |
svenpanne@chromium.org | c859c4f | 2012-10-15 11:51:39 +0000 | [diff] [blame] | 2639 | __ AssertString(input); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2640 | |
| 2641 | __ ldr(result, FieldMemOperand(input, String::kHashFieldOffset)); |
| 2642 | __ IndexFromHash(result, result); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 2643 | } |
| 2644 | |
| 2645 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2646 | void LCodeGen::DoHasCachedArrayIndexAndBranch( |
| 2647 | LHasCachedArrayIndexAndBranch* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2648 | Register input = ToRegister(instr->value()); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 2649 | Register scratch = scratch0(); |
| 2650 | |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 2651 | __ ldr(scratch, |
| 2652 | FieldMemOperand(input, String::kHashFieldOffset)); |
| 2653 | __ tst(scratch, Operand(String::kContainsCachedArrayIndexMask)); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2654 | EmitBranch(instr, eq); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2655 | } |
| 2656 | |
| 2657 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2658 | // Branches to a label or falls through with the answer in flags. Trashes |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2659 | // the temp registers, but not the input. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2660 | void LCodeGen::EmitClassOfTest(Label* is_true, |
| 2661 | Label* is_false, |
| 2662 | Handle<String>class_name, |
| 2663 | Register input, |
| 2664 | Register temp, |
| 2665 | Register temp2) { |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2666 | ASSERT(!input.is(temp)); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2667 | ASSERT(!input.is(temp2)); |
| 2668 | ASSERT(!temp.is(temp2)); |
| 2669 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2670 | __ JumpIfSmi(input, is_false); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2671 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2672 | if (class_name->IsOneByteEqualTo(STATIC_ASCII_VECTOR("Function"))) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2673 | // Assuming the following assertions, we can use the same compares to test |
| 2674 | // for both being a function type and being in the object type range. |
| 2675 | STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
| 2676 | STATIC_ASSERT(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE == |
| 2677 | FIRST_SPEC_OBJECT_TYPE + 1); |
| 2678 | STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == |
| 2679 | LAST_SPEC_OBJECT_TYPE - 1); |
| 2680 | STATIC_ASSERT(LAST_SPEC_OBJECT_TYPE == LAST_TYPE); |
| 2681 | __ CompareObjectType(input, temp, temp2, FIRST_SPEC_OBJECT_TYPE); |
| 2682 | __ b(lt, is_false); |
| 2683 | __ b(eq, is_true); |
| 2684 | __ cmp(temp2, Operand(LAST_SPEC_OBJECT_TYPE)); |
| 2685 | __ b(eq, is_true); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2686 | } else { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2687 | // Faster code path to avoid two compares: subtract lower bound from the |
| 2688 | // actual type and do a signed compare with the width of the type range. |
| 2689 | __ ldr(temp, FieldMemOperand(input, HeapObject::kMapOffset)); |
| 2690 | __ ldrb(temp2, FieldMemOperand(temp, Map::kInstanceTypeOffset)); |
| 2691 | __ sub(temp2, temp2, Operand(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
| 2692 | __ cmp(temp2, Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE - |
| 2693 | FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
| 2694 | __ b(gt, is_false); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2695 | } |
| 2696 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2697 | // Now we are in the FIRST-LAST_NONCALLABLE_SPEC_OBJECT_TYPE range. |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2698 | // Check if the constructor in the map is a function. |
| 2699 | __ ldr(temp, FieldMemOperand(temp, Map::kConstructorOffset)); |
| 2700 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2701 | // Objects with a non-function constructor have class 'Object'. |
| 2702 | __ CompareObjectType(temp, temp2, temp2, JS_FUNCTION_TYPE); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2703 | if (class_name->IsOneByteEqualTo(STATIC_ASCII_VECTOR("Object"))) { |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2704 | __ b(ne, is_true); |
| 2705 | } else { |
| 2706 | __ b(ne, is_false); |
| 2707 | } |
| 2708 | |
| 2709 | // temp now contains the constructor function. Grab the |
| 2710 | // instance class name from there. |
| 2711 | __ ldr(temp, FieldMemOperand(temp, JSFunction::kSharedFunctionInfoOffset)); |
| 2712 | __ ldr(temp, FieldMemOperand(temp, |
| 2713 | SharedFunctionInfo::kInstanceClassNameOffset)); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2714 | // The class name we are testing against is internalized since it's a literal. |
| 2715 | // The name in the constructor is internalized because of the way the context |
| 2716 | // is booted. This routine isn't expected to work for random API-created |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2717 | // 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] | 2718 | // syntax. Since both sides are internalized it is sufficient to use an |
| 2719 | // identity comparison. |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2720 | __ cmp(temp, Operand(class_name)); |
| 2721 | // End with the answer in flags. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2722 | } |
| 2723 | |
| 2724 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2725 | void LCodeGen::DoClassOfTestAndBranch(LClassOfTestAndBranch* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2726 | Register input = ToRegister(instr->value()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2727 | Register temp = scratch0(); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2728 | Register temp2 = ToRegister(instr->temp()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2729 | Handle<String> class_name = instr->hydrogen()->class_name(); |
| 2730 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2731 | EmitClassOfTest(instr->TrueLabel(chunk_), instr->FalseLabel(chunk_), |
| 2732 | class_name, input, temp, temp2); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2733 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2734 | EmitBranch(instr, eq); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2735 | } |
| 2736 | |
| 2737 | |
| 2738 | void LCodeGen::DoCmpMapAndBranch(LCmpMapAndBranch* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2739 | Register reg = ToRegister(instr->value()); |
| 2740 | Register temp = ToRegister(instr->temp()); |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 2741 | |
| 2742 | __ ldr(temp, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 2743 | __ cmp(temp, Operand(instr->map())); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 2744 | EmitBranch(instr, eq); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2745 | } |
| 2746 | |
| 2747 | |
| 2748 | void LCodeGen::DoInstanceOf(LInstanceOf* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 2749 | ASSERT(ToRegister(instr->context()).is(cp)); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2750 | ASSERT(ToRegister(instr->left()).is(r0)); // Object is in r0. |
| 2751 | ASSERT(ToRegister(instr->right()).is(r1)); // Function is in r1. |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 2752 | |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 2753 | InstanceofStub stub(InstanceofStub::kArgsInRegisters); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2754 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 2755 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2756 | __ cmp(r0, Operand::Zero()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2757 | __ mov(r0, Operand(factory()->false_value()), LeaveCC, ne); |
| 2758 | __ mov(r0, Operand(factory()->true_value()), LeaveCC, eq); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2759 | } |
| 2760 | |
| 2761 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2762 | void LCodeGen::DoInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr) { |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 2763 | class DeferredInstanceOfKnownGlobal V8_FINAL : public LDeferredCode { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2764 | public: |
| 2765 | DeferredInstanceOfKnownGlobal(LCodeGen* codegen, |
| 2766 | LInstanceOfKnownGlobal* instr) |
| 2767 | : LDeferredCode(codegen), instr_(instr) { } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 2768 | virtual void Generate() V8_OVERRIDE { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 2769 | codegen()->DoDeferredInstanceOfKnownGlobal(instr_, &map_check_); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2770 | } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 2771 | virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2772 | Label* map_check() { return &map_check_; } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2773 | private: |
| 2774 | LInstanceOfKnownGlobal* instr_; |
| 2775 | Label map_check_; |
| 2776 | }; |
| 2777 | |
| 2778 | DeferredInstanceOfKnownGlobal* deferred; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2779 | deferred = new(zone()) DeferredInstanceOfKnownGlobal(this, instr); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2780 | |
| 2781 | Label done, false_result; |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2782 | Register object = ToRegister(instr->value()); |
| 2783 | Register temp = ToRegister(instr->temp()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2784 | Register result = ToRegister(instr->result()); |
| 2785 | |
| 2786 | ASSERT(object.is(r0)); |
| 2787 | ASSERT(result.is(r0)); |
| 2788 | |
| 2789 | // A Smi is not instance of anything. |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2790 | __ JumpIfSmi(object, &false_result); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2791 | |
| 2792 | // This is the inlined call site instanceof cache. The two occurences of the |
| 2793 | // hole value will be patched to the last map/result pair generated by the |
| 2794 | // instanceof stub. |
| 2795 | Label cache_miss; |
| 2796 | Register map = temp; |
| 2797 | __ ldr(map, FieldMemOperand(object, HeapObject::kMapOffset)); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2798 | { |
| 2799 | // Block constant pool emission to ensure the positions of instructions are |
| 2800 | // as expected by the patcher. See InstanceofStub::Generate(). |
| 2801 | Assembler::BlockConstPoolScope block_const_pool(masm()); |
| 2802 | __ bind(deferred->map_check()); // Label for calculating code patching. |
| 2803 | // We use Factory::the_hole_value() on purpose instead of loading from the |
| 2804 | // root array to force relocation to be able to later patch with |
| 2805 | // the cached map. |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2806 | PredictableCodeSizeScope predictable(masm_, 5 * Assembler::kInstrSize); |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 2807 | Handle<Cell> cell = factory()->NewCell(factory()->the_hole_value()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2808 | __ mov(ip, Operand(Handle<Object>(cell))); |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 2809 | __ ldr(ip, FieldMemOperand(ip, PropertyCell::kValueOffset)); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2810 | __ cmp(map, Operand(ip)); |
| 2811 | __ b(ne, &cache_miss); |
| 2812 | // We use Factory::the_hole_value() on purpose instead of loading from the |
| 2813 | // root array to force relocation to be able to later patch |
| 2814 | // with true or false. |
| 2815 | __ mov(result, Operand(factory()->the_hole_value())); |
| 2816 | } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2817 | __ b(&done); |
| 2818 | |
| 2819 | // The inlined call site cache did not match. Check null and string before |
| 2820 | // calling the deferred code. |
| 2821 | __ bind(&cache_miss); |
| 2822 | // Null is not instance of anything. |
| 2823 | __ LoadRoot(ip, Heap::kNullValueRootIndex); |
| 2824 | __ cmp(object, Operand(ip)); |
| 2825 | __ b(eq, &false_result); |
| 2826 | |
| 2827 | // String values is not instance of anything. |
| 2828 | Condition is_string = masm_->IsObjectStringType(object, temp); |
| 2829 | __ b(is_string, &false_result); |
| 2830 | |
| 2831 | // Go to the deferred code. |
| 2832 | __ b(deferred->entry()); |
| 2833 | |
| 2834 | __ bind(&false_result); |
| 2835 | __ LoadRoot(result, Heap::kFalseValueRootIndex); |
| 2836 | |
| 2837 | // Here result has either true or false. Deferred code also produces true or |
| 2838 | // false object. |
| 2839 | __ bind(deferred->exit()); |
| 2840 | __ bind(&done); |
| 2841 | } |
| 2842 | |
| 2843 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 2844 | void LCodeGen::DoDeferredInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr, |
| 2845 | Label* map_check) { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2846 | Register result = ToRegister(instr->result()); |
| 2847 | ASSERT(result.is(r0)); |
| 2848 | |
| 2849 | InstanceofStub::Flags flags = InstanceofStub::kNoFlags; |
| 2850 | flags = static_cast<InstanceofStub::Flags>( |
| 2851 | flags | InstanceofStub::kArgsInRegisters); |
| 2852 | flags = static_cast<InstanceofStub::Flags>( |
| 2853 | flags | InstanceofStub::kCallSiteInlineCheck); |
| 2854 | flags = static_cast<InstanceofStub::Flags>( |
| 2855 | flags | InstanceofStub::kReturnTrueFalseObject); |
| 2856 | InstanceofStub stub(flags); |
| 2857 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2858 | PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 2859 | LoadContextFromDeferred(instr->context()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2860 | |
| 2861 | // Get the temp register reserved by the instruction. This needs to be r4 as |
| 2862 | // its slot of the pushing of safepoint registers is used to communicate the |
| 2863 | // offset to the location of the map check. |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 2864 | Register temp = ToRegister(instr->temp()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2865 | ASSERT(temp.is(r4)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2866 | __ LoadHeapObject(InstanceofStub::right(), instr->function()); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 2867 | static const int kAdditionalDelta = 5; |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 2868 | // Make sure that code size is predicable, since we use specific constants |
| 2869 | // offsets in the code to find embedded values.. |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2870 | PredictableCodeSizeScope predictable(masm_, 6 * Assembler::kInstrSize); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2871 | int delta = masm_->InstructionsGeneratedSince(map_check) + kAdditionalDelta; |
| 2872 | Label before_push_delta; |
| 2873 | __ bind(&before_push_delta); |
| 2874 | __ BlockConstPoolFor(kAdditionalDelta); |
| 2875 | __ mov(temp, Operand(delta * kPointerSize)); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 2876 | // The mov above can generate one or two instructions. The delta was computed |
| 2877 | // for two instructions, so we need to pad here in case of one instruction. |
| 2878 | if (masm_->InstructionsGeneratedSince(&before_push_delta) != 2) { |
| 2879 | ASSERT_EQ(1, masm_->InstructionsGeneratedSince(&before_push_delta)); |
| 2880 | __ nop(); |
| 2881 | } |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2882 | __ StoreToSafepointRegisterSlot(temp, temp); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2883 | CallCodeGeneric(stub.GetCode(isolate()), |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2884 | RelocInfo::CODE_TARGET, |
| 2885 | instr, |
| 2886 | RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 2887 | LEnvironment* env = instr->GetDeferredLazyDeoptimizationEnvironment(); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 2888 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2889 | // Put the result value into the result register slot and |
| 2890 | // restore all registers. |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2891 | __ StoreToSafepointRegisterSlot(result, result); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2892 | } |
| 2893 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2894 | |
mstarzinger@chromium.org | 71fc346 | 2013-02-27 09:34:27 +0000 | [diff] [blame] | 2895 | void LCodeGen::DoInstanceSize(LInstanceSize* instr) { |
| 2896 | Register object = ToRegister(instr->object()); |
| 2897 | Register result = ToRegister(instr->result()); |
| 2898 | __ ldr(result, FieldMemOperand(object, HeapObject::kMapOffset)); |
| 2899 | __ ldrb(result, FieldMemOperand(result, Map::kInstanceSizeOffset)); |
| 2900 | } |
| 2901 | |
| 2902 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2903 | void LCodeGen::DoCmpT(LCmpT* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 2904 | ASSERT(ToRegister(instr->context()).is(cp)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2905 | Token::Value op = instr->op(); |
| 2906 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2907 | Handle<Code> ic = CompareIC::GetUninitialized(isolate(), op); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2908 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 2909 | // This instruction also signals no smi code inlined. |
| 2910 | __ cmp(r0, Operand::Zero()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2911 | |
| 2912 | Condition condition = ComputeCompareCondition(op); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2913 | __ LoadRoot(ToRegister(instr->result()), |
| 2914 | Heap::kTrueValueRootIndex, |
| 2915 | condition); |
| 2916 | __ LoadRoot(ToRegister(instr->result()), |
| 2917 | Heap::kFalseValueRootIndex, |
| 2918 | NegateCondition(condition)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2919 | } |
| 2920 | |
| 2921 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2922 | void LCodeGen::DoReturn(LReturn* instr) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2923 | if (FLAG_trace && info()->IsOptimizing()) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2924 | // Push the return value on the stack as the parameter. |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 2925 | // Runtime::TraceExit returns its parameter in r0. We're leaving the code |
| 2926 | // managed by the register allocator and tearing down the frame, it's |
| 2927 | // safe to write to the context register. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2928 | __ push(r0); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 2929 | __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2930 | __ CallRuntime(Runtime::kTraceExit, 1); |
| 2931 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 2932 | if (info()->saves_caller_doubles()) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2933 | ASSERT(NeedsEagerFrame()); |
| 2934 | BitVector* doubles = chunk()->allocated_double_registers(); |
| 2935 | BitVector::Iterator save_iterator(doubles); |
| 2936 | int count = 0; |
| 2937 | while (!save_iterator.Done()) { |
| 2938 | __ vldr(DwVfpRegister::FromAllocationIndex(save_iterator.Current()), |
| 2939 | MemOperand(sp, count * kDoubleSize)); |
| 2940 | save_iterator.Advance(); |
| 2941 | count++; |
| 2942 | } |
| 2943 | } |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 2944 | int no_frame_start = -1; |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2945 | if (NeedsEagerFrame()) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2946 | __ mov(sp, fp); |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 2947 | no_frame_start = masm_->pc_offset(); |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 2948 | __ ldm(ia_w, sp, fp.bit() | lr.bit()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 2949 | } |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 2950 | if (instr->has_constant_parameter_count()) { |
| 2951 | int parameter_count = ToInteger32(instr->constant_parameter_count()); |
| 2952 | int32_t sp_delta = (parameter_count + 1) * kPointerSize; |
| 2953 | if (sp_delta != 0) { |
| 2954 | __ add(sp, sp, Operand(sp_delta)); |
| 2955 | } |
| 2956 | } else { |
| 2957 | Register reg = ToRegister(instr->parameter_count()); |
| 2958 | // The argument count parameter is a smi |
| 2959 | __ SmiUntag(reg); |
| 2960 | __ add(sp, sp, Operand(reg, LSL, kPointerSizeLog2)); |
| 2961 | } |
| 2962 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2963 | __ Jump(lr); |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 2964 | |
| 2965 | if (no_frame_start != -1) { |
| 2966 | info_->AddNoFrameRange(no_frame_start, masm_->pc_offset()); |
| 2967 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2968 | } |
| 2969 | |
| 2970 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2971 | void LCodeGen::DoLoadGlobalCell(LLoadGlobalCell* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2972 | Register result = ToRegister(instr->result()); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 2973 | __ mov(ip, Operand(Handle<Object>(instr->hydrogen()->cell().handle()))); |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 2974 | __ ldr(result, FieldMemOperand(ip, Cell::kValueOffset)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2975 | if (instr->hydrogen()->RequiresHoleCheck()) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2976 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 2977 | __ cmp(result, ip); |
| 2978 | DeoptimizeIf(eq, instr->environment()); |
| 2979 | } |
| 2980 | } |
| 2981 | |
| 2982 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2983 | void LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 2984 | ASSERT(ToRegister(instr->context()).is(cp)); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2985 | ASSERT(ToRegister(instr->global_object()).is(r0)); |
| 2986 | ASSERT(ToRegister(instr->result()).is(r0)); |
| 2987 | |
| 2988 | __ mov(r2, Operand(instr->name())); |
| 2989 | RelocInfo::Mode mode = instr->for_typeof() ? RelocInfo::CODE_TARGET |
| 2990 | : RelocInfo::CODE_TARGET_CONTEXT; |
| 2991 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
| 2992 | CallCode(ic, mode, instr); |
| 2993 | } |
| 2994 | |
| 2995 | |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 2996 | void LCodeGen::DoStoreGlobalCell(LStoreGlobalCell* instr) { |
danno@chromium.org | e78f9fc | 2011-12-21 08:29:34 +0000 | [diff] [blame] | 2997 | Register value = ToRegister(instr->value()); |
| 2998 | Register cell = scratch0(); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2999 | |
| 3000 | // Load the cell. |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 3001 | __ mov(cell, Operand(instr->hydrogen()->cell().handle())); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 3002 | |
| 3003 | // If the cell we are storing to contains the hole it could have |
| 3004 | // been deleted from the property dictionary. In that case, we need |
| 3005 | // to update the property details in the property dictionary to mark |
| 3006 | // it as no longer deleted. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3007 | if (instr->hydrogen()->RequiresHoleCheck()) { |
danno@chromium.org | e78f9fc | 2011-12-21 08:29:34 +0000 | [diff] [blame] | 3008 | // We use a temp to check the payload (CompareRoot might clobber ip). |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3009 | Register payload = ToRegister(instr->temp()); |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 3010 | __ ldr(payload, FieldMemOperand(cell, Cell::kValueOffset)); |
danno@chromium.org | e78f9fc | 2011-12-21 08:29:34 +0000 | [diff] [blame] | 3011 | __ CompareRoot(payload, Heap::kTheHoleValueRootIndex); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 3012 | DeoptimizeIf(eq, instr->environment()); |
| 3013 | } |
| 3014 | |
| 3015 | // Store the value. |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 3016 | __ str(value, FieldMemOperand(cell, Cell::kValueOffset)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3017 | // Cells are always rescanned, so no write barrier here. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3018 | } |
| 3019 | |
| 3020 | |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 3021 | void LCodeGen::DoStoreGlobalGeneric(LStoreGlobalGeneric* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 3022 | ASSERT(ToRegister(instr->context()).is(cp)); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 3023 | ASSERT(ToRegister(instr->global_object()).is(r1)); |
| 3024 | ASSERT(ToRegister(instr->value()).is(r0)); |
| 3025 | |
| 3026 | __ mov(r2, Operand(instr->name())); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 3027 | Handle<Code> ic = (instr->strict_mode_flag() == kStrictMode) |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3028 | ? isolate()->builtins()->StoreIC_Initialize_Strict() |
| 3029 | : isolate()->builtins()->StoreIC_Initialize(); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 3030 | CallCode(ic, RelocInfo::CODE_TARGET_CONTEXT, instr); |
| 3031 | } |
| 3032 | |
| 3033 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 3034 | void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) { |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3035 | Register context = ToRegister(instr->context()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 3036 | Register result = ToRegister(instr->result()); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3037 | __ ldr(result, ContextOperand(context, instr->slot_index())); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3038 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 3039 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 3040 | __ cmp(result, ip); |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 3041 | if (instr->hydrogen()->DeoptimizesOnHole()) { |
| 3042 | DeoptimizeIf(eq, instr->environment()); |
| 3043 | } else { |
| 3044 | __ mov(result, Operand(factory()->undefined_value()), LeaveCC, eq); |
| 3045 | } |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3046 | } |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 3047 | } |
| 3048 | |
| 3049 | |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3050 | void LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) { |
| 3051 | Register context = ToRegister(instr->context()); |
| 3052 | Register value = ToRegister(instr->value()); |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 3053 | Register scratch = scratch0(); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3054 | MemOperand target = ContextOperand(context, instr->slot_index()); |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 3055 | |
| 3056 | Label skip_assignment; |
| 3057 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3058 | if (instr->hydrogen()->RequiresHoleCheck()) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3059 | __ ldr(scratch, target); |
| 3060 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 3061 | __ cmp(scratch, ip); |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 3062 | if (instr->hydrogen()->DeoptimizesOnHole()) { |
| 3063 | DeoptimizeIf(eq, instr->environment()); |
| 3064 | } else { |
| 3065 | __ b(ne, &skip_assignment); |
| 3066 | } |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3067 | } |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 3068 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3069 | __ str(value, target); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3070 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3071 | SmiCheck check_needed = |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 3072 | instr->hydrogen()->value()->IsHeapObject() |
| 3073 | ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3074 | __ RecordWriteContextSlot(context, |
| 3075 | target.offset(), |
| 3076 | value, |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 3077 | scratch, |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 3078 | GetLinkRegisterState(), |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3079 | kSaveFPRegs, |
| 3080 | EMIT_REMEMBERED_SET, |
| 3081 | check_needed); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3082 | } |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 3083 | |
| 3084 | __ bind(&skip_assignment); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3085 | } |
| 3086 | |
| 3087 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3088 | void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) { |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 3089 | HObjectAccess access = instr->hydrogen()->access(); |
| 3090 | int offset = access.offset(); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3091 | Register object = ToRegister(instr->object()); |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 3092 | |
| 3093 | if (access.IsExternalMemory()) { |
| 3094 | Register result = ToRegister(instr->result()); |
| 3095 | __ ldr(result, MemOperand(object, offset)); |
| 3096 | return; |
| 3097 | } |
| 3098 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3099 | if (instr->hydrogen()->representation().IsDouble()) { |
| 3100 | DwVfpRegister result = ToDoubleRegister(instr->result()); |
| 3101 | __ vldr(result, FieldMemOperand(object, offset)); |
| 3102 | return; |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3103 | } |
| 3104 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3105 | Register result = ToRegister(instr->result()); |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 3106 | if (access.IsInobject()) { |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3107 | __ ldr(result, FieldMemOperand(object, offset)); |
| 3108 | } else { |
| 3109 | __ ldr(result, FieldMemOperand(object, JSObject::kPropertiesOffset)); |
| 3110 | __ ldr(result, FieldMemOperand(result, offset)); |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 3111 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3112 | } |
| 3113 | |
| 3114 | |
| 3115 | void LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 3116 | ASSERT(ToRegister(instr->context()).is(cp)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3117 | ASSERT(ToRegister(instr->object()).is(r0)); |
| 3118 | ASSERT(ToRegister(instr->result()).is(r0)); |
| 3119 | |
| 3120 | // Name is always in r2. |
| 3121 | __ mov(r2, Operand(instr->name())); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3122 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 3123 | CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3124 | } |
| 3125 | |
| 3126 | |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3127 | void LCodeGen::DoLoadFunctionPrototype(LLoadFunctionPrototype* instr) { |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 3128 | Register scratch = scratch0(); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3129 | Register function = ToRegister(instr->function()); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3130 | Register result = ToRegister(instr->result()); |
| 3131 | |
| 3132 | // Check that the function really is a function. Load map into the |
| 3133 | // result register. |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 3134 | __ CompareObjectType(function, result, scratch, JS_FUNCTION_TYPE); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3135 | DeoptimizeIf(ne, instr->environment()); |
| 3136 | |
| 3137 | // Make sure that the function has an instance prototype. |
| 3138 | Label non_instance; |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 3139 | __ ldrb(scratch, FieldMemOperand(result, Map::kBitFieldOffset)); |
| 3140 | __ tst(scratch, Operand(1 << Map::kHasNonInstancePrototype)); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3141 | __ b(ne, &non_instance); |
| 3142 | |
| 3143 | // Get the prototype or initial map from the function. |
| 3144 | __ ldr(result, |
| 3145 | FieldMemOperand(function, JSFunction::kPrototypeOrInitialMapOffset)); |
| 3146 | |
| 3147 | // Check that the function has a prototype or an initial map. |
| 3148 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 3149 | __ cmp(result, ip); |
| 3150 | DeoptimizeIf(eq, instr->environment()); |
| 3151 | |
| 3152 | // If the function does not have an initial map, we're done. |
| 3153 | Label done; |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 3154 | __ CompareObjectType(result, scratch, scratch, MAP_TYPE); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 3155 | __ b(ne, &done); |
| 3156 | |
| 3157 | // Get the prototype from the initial map. |
| 3158 | __ ldr(result, FieldMemOperand(result, Map::kPrototypeOffset)); |
| 3159 | __ jmp(&done); |
| 3160 | |
| 3161 | // Non-instance prototype: Fetch prototype from constructor field |
| 3162 | // in initial map. |
| 3163 | __ bind(&non_instance); |
| 3164 | __ ldr(result, FieldMemOperand(result, Map::kConstructorOffset)); |
| 3165 | |
| 3166 | // All done. |
| 3167 | __ bind(&done); |
| 3168 | } |
| 3169 | |
| 3170 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 3171 | void LCodeGen::DoLoadRoot(LLoadRoot* instr) { |
| 3172 | Register result = ToRegister(instr->result()); |
| 3173 | __ LoadRoot(result, instr->index()); |
| 3174 | } |
| 3175 | |
| 3176 | |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3177 | void LCodeGen::DoLoadExternalArrayPointer( |
| 3178 | LLoadExternalArrayPointer* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3179 | Register to_reg = ToRegister(instr->result()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3180 | Register from_reg = ToRegister(instr->object()); |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3181 | __ ldr(to_reg, FieldMemOperand(from_reg, |
| 3182 | ExternalArray::kExternalPointerOffset)); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3183 | } |
| 3184 | |
| 3185 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3186 | void LCodeGen::DoAccessArgumentsAt(LAccessArgumentsAt* instr) { |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 3187 | Register arguments = ToRegister(instr->arguments()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 3188 | Register result = ToRegister(instr->result()); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3189 | if (instr->length()->IsConstantOperand() && |
| 3190 | instr->index()->IsConstantOperand()) { |
| 3191 | int const_index = ToInteger32(LConstantOperand::cast(instr->index())); |
| 3192 | int const_length = ToInteger32(LConstantOperand::cast(instr->length())); |
| 3193 | int index = (const_length - const_index) + 1; |
| 3194 | __ ldr(result, MemOperand(arguments, index * kPointerSize)); |
| 3195 | } else { |
| 3196 | Register length = ToRegister(instr->length()); |
| 3197 | Register index = ToRegister(instr->index()); |
| 3198 | // There are two words between the frame pointer and the last argument. |
| 3199 | // Subtracting from length accounts for one of them add one more. |
| 3200 | __ sub(length, length, index); |
| 3201 | __ add(length, length, Operand(1)); |
| 3202 | __ ldr(result, MemOperand(arguments, length, LSL, kPointerSizeLog2)); |
| 3203 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3204 | } |
| 3205 | |
| 3206 | |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3207 | void LCodeGen::DoLoadKeyedExternalArray(LLoadKeyed* instr) { |
| 3208 | Register external_pointer = ToRegister(instr->elements()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3209 | Register key = no_reg; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3210 | ElementsKind elements_kind = instr->elements_kind(); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3211 | bool key_is_constant = instr->key()->IsConstantOperand(); |
| 3212 | int constant_key = 0; |
| 3213 | if (key_is_constant) { |
| 3214 | constant_key = ToInteger32(LConstantOperand::cast(instr->key())); |
| 3215 | if (constant_key & 0xF0000000) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 3216 | Abort(kArrayIndexConstantValueTooBig); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3217 | } |
| 3218 | } else { |
| 3219 | key = ToRegister(instr->key()); |
| 3220 | } |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 3221 | int element_size_shift = ElementsKindToShiftSize(elements_kind); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 3222 | int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 3223 | ? (element_size_shift - kSmiTagSize) : element_size_shift; |
| 3224 | int additional_offset = instr->additional_index() << element_size_shift; |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3225 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3226 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS || |
| 3227 | elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3228 | DwVfpRegister result = ToDoubleRegister(instr->result()); |
| 3229 | Operand operand = key_is_constant |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 3230 | ? Operand(constant_key << element_size_shift) |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3231 | : Operand(key, LSL, shift_size); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3232 | __ add(scratch0(), external_pointer, operand); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3233 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 3234 | __ vldr(double_scratch0().low(), scratch0(), additional_offset); |
| 3235 | __ vcvt_f64_f32(result, double_scratch0().low()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3236 | } else { // i.e. elements_kind == EXTERNAL_DOUBLE_ELEMENTS |
| 3237 | __ vldr(result, scratch0(), additional_offset); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3238 | } |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3239 | } else { |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3240 | Register result = ToRegister(instr->result()); |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 3241 | MemOperand mem_operand = PrepareKeyedOperand( |
| 3242 | key, external_pointer, key_is_constant, constant_key, |
| 3243 | element_size_shift, shift_size, |
| 3244 | instr->additional_index(), additional_offset); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3245 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3246 | case EXTERNAL_BYTE_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3247 | __ ldrsb(result, mem_operand); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3248 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3249 | case EXTERNAL_PIXEL_ELEMENTS: |
| 3250 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3251 | __ ldrb(result, mem_operand); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3252 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3253 | case EXTERNAL_SHORT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3254 | __ ldrsh(result, mem_operand); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3255 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3256 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3257 | __ ldrh(result, mem_operand); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3258 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3259 | case EXTERNAL_INT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3260 | __ ldr(result, mem_operand); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3261 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3262 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3263 | __ ldr(result, mem_operand); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 3264 | if (!instr->hydrogen()->CheckFlag(HInstruction::kUint32)) { |
| 3265 | __ cmp(result, Operand(0x80000000)); |
| 3266 | DeoptimizeIf(cs, instr->environment()); |
| 3267 | } |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3268 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3269 | case EXTERNAL_FLOAT_ELEMENTS: |
| 3270 | case EXTERNAL_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3271 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 3272 | case FAST_HOLEY_ELEMENTS: |
| 3273 | case FAST_HOLEY_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3274 | case FAST_DOUBLE_ELEMENTS: |
| 3275 | case FAST_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3276 | case FAST_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3277 | case DICTIONARY_ELEMENTS: |
| 3278 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3279 | UNREACHABLE(); |
| 3280 | break; |
| 3281 | } |
| 3282 | } |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3283 | } |
| 3284 | |
| 3285 | |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3286 | void LCodeGen::DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr) { |
| 3287 | Register elements = ToRegister(instr->elements()); |
| 3288 | bool key_is_constant = instr->key()->IsConstantOperand(); |
| 3289 | Register key = no_reg; |
| 3290 | DwVfpRegister result = ToDoubleRegister(instr->result()); |
| 3291 | Register scratch = scratch0(); |
| 3292 | |
| 3293 | int element_size_shift = ElementsKindToShiftSize(FAST_DOUBLE_ELEMENTS); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 3294 | int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3295 | ? (element_size_shift - kSmiTagSize) : element_size_shift; |
| 3296 | int constant_key = 0; |
| 3297 | if (key_is_constant) { |
| 3298 | constant_key = ToInteger32(LConstantOperand::cast(instr->key())); |
| 3299 | if (constant_key & 0xF0000000) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 3300 | Abort(kArrayIndexConstantValueTooBig); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3301 | } |
| 3302 | } else { |
| 3303 | key = ToRegister(instr->key()); |
| 3304 | } |
| 3305 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3306 | int base_offset = (FixedDoubleArray::kHeaderSize - kHeapObjectTag) + |
| 3307 | ((constant_key + instr->additional_index()) << element_size_shift); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3308 | if (!key_is_constant) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3309 | __ add(elements, elements, Operand(key, LSL, shift_size)); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3310 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3311 | __ add(elements, elements, Operand(base_offset)); |
| 3312 | __ vldr(result, elements, 0); |
| 3313 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 3314 | __ ldr(scratch, MemOperand(elements, sizeof(kHoleNanLower32))); |
| 3315 | __ cmp(scratch, Operand(kHoleNanUpper32)); |
| 3316 | DeoptimizeIf(eq, instr->environment()); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3317 | } |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3318 | } |
| 3319 | |
| 3320 | |
| 3321 | void LCodeGen::DoLoadKeyedFixedArray(LLoadKeyed* instr) { |
| 3322 | Register elements = ToRegister(instr->elements()); |
| 3323 | Register result = ToRegister(instr->result()); |
| 3324 | Register scratch = scratch0(); |
| 3325 | Register store_base = scratch; |
| 3326 | int offset = 0; |
| 3327 | |
| 3328 | if (instr->key()->IsConstantOperand()) { |
| 3329 | LConstantOperand* const_operand = LConstantOperand::cast(instr->key()); |
| 3330 | offset = FixedArray::OffsetOfElementAt(ToInteger32(const_operand) + |
| 3331 | instr->additional_index()); |
| 3332 | store_base = elements; |
| 3333 | } else { |
| 3334 | Register key = EmitLoadRegister(instr->key(), scratch0()); |
| 3335 | // Even though the HLoadKeyed instruction forces the input |
| 3336 | // representation for the key to be an integer, the input gets replaced |
| 3337 | // during bound check elimination with the index argument to the bounds |
| 3338 | // check, which can be tagged, so that case must be handled here, too. |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 3339 | if (instr->hydrogen()->key()->representation().IsSmi()) { |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3340 | __ add(scratch, elements, Operand::PointerOffsetFromSmiKey(key)); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3341 | } else { |
| 3342 | __ add(scratch, elements, Operand(key, LSL, kPointerSizeLog2)); |
| 3343 | } |
| 3344 | offset = FixedArray::OffsetOfElementAt(instr->additional_index()); |
| 3345 | } |
| 3346 | __ ldr(result, FieldMemOperand(store_base, offset)); |
| 3347 | |
| 3348 | // Check for the hole value. |
| 3349 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 3350 | if (IsFastSmiElementsKind(instr->hydrogen()->elements_kind())) { |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3351 | __ SmiTst(result); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 3352 | DeoptimizeIf(ne, instr->environment()); |
| 3353 | } else { |
| 3354 | __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex); |
| 3355 | __ cmp(result, scratch); |
| 3356 | DeoptimizeIf(eq, instr->environment()); |
| 3357 | } |
| 3358 | } |
| 3359 | } |
| 3360 | |
| 3361 | |
| 3362 | void LCodeGen::DoLoadKeyed(LLoadKeyed* instr) { |
| 3363 | if (instr->is_external()) { |
| 3364 | DoLoadKeyedExternalArray(instr); |
| 3365 | } else if (instr->hydrogen()->representation().IsDouble()) { |
| 3366 | DoLoadKeyedFixedDoubleArray(instr); |
| 3367 | } else { |
| 3368 | DoLoadKeyedFixedArray(instr); |
| 3369 | } |
| 3370 | } |
| 3371 | |
| 3372 | |
| 3373 | MemOperand LCodeGen::PrepareKeyedOperand(Register key, |
| 3374 | Register base, |
| 3375 | bool key_is_constant, |
| 3376 | int constant_key, |
| 3377 | int element_size, |
| 3378 | int shift_size, |
| 3379 | int additional_index, |
| 3380 | int additional_offset) { |
| 3381 | if (additional_index != 0 && !key_is_constant) { |
| 3382 | additional_index *= 1 << (element_size - shift_size); |
| 3383 | __ add(scratch0(), key, Operand(additional_index)); |
| 3384 | } |
| 3385 | |
| 3386 | if (key_is_constant) { |
| 3387 | return MemOperand(base, |
| 3388 | (constant_key << element_size) + additional_offset); |
| 3389 | } |
| 3390 | |
| 3391 | if (additional_index == 0) { |
| 3392 | if (shift_size >= 0) { |
| 3393 | return MemOperand(base, key, LSL, shift_size); |
| 3394 | } else { |
| 3395 | ASSERT_EQ(-1, shift_size); |
| 3396 | return MemOperand(base, key, LSR, 1); |
| 3397 | } |
| 3398 | } |
| 3399 | |
| 3400 | if (shift_size >= 0) { |
| 3401 | return MemOperand(base, scratch0(), LSL, shift_size); |
| 3402 | } else { |
| 3403 | ASSERT_EQ(-1, shift_size); |
| 3404 | return MemOperand(base, scratch0(), LSR, 1); |
| 3405 | } |
| 3406 | } |
| 3407 | |
| 3408 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3409 | void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 3410 | ASSERT(ToRegister(instr->context()).is(cp)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3411 | ASSERT(ToRegister(instr->object()).is(r1)); |
| 3412 | ASSERT(ToRegister(instr->key()).is(r0)); |
| 3413 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3414 | Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize(); |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 3415 | CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3416 | } |
| 3417 | |
| 3418 | |
| 3419 | void LCodeGen::DoArgumentsElements(LArgumentsElements* instr) { |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 3420 | Register scratch = scratch0(); |
| 3421 | Register result = ToRegister(instr->result()); |
| 3422 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3423 | if (instr->hydrogen()->from_inlined()) { |
| 3424 | __ sub(result, sp, Operand(2 * kPointerSize)); |
| 3425 | } else { |
| 3426 | // Check if the calling frame is an arguments adaptor frame. |
| 3427 | Label done, adapted; |
| 3428 | __ ldr(scratch, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); |
| 3429 | __ ldr(result, MemOperand(scratch, StandardFrameConstants::kContextOffset)); |
| 3430 | __ cmp(result, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 3431 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3432 | // Result is the frame pointer for the frame if not adapted and for the real |
| 3433 | // frame below the adaptor frame if adapted. |
| 3434 | __ mov(result, fp, LeaveCC, ne); |
| 3435 | __ mov(result, scratch, LeaveCC, eq); |
| 3436 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3437 | } |
| 3438 | |
| 3439 | |
| 3440 | void LCodeGen::DoArgumentsLength(LArgumentsLength* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3441 | Register elem = ToRegister(instr->elements()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 3442 | Register result = ToRegister(instr->result()); |
| 3443 | |
| 3444 | Label done; |
| 3445 | |
| 3446 | // If no arguments adaptor frame the number of arguments is fixed. |
| 3447 | __ cmp(fp, elem); |
| 3448 | __ mov(result, Operand(scope()->num_parameters())); |
| 3449 | __ b(eq, &done); |
| 3450 | |
| 3451 | // Arguments adaptor frame present. Get argument length from there. |
| 3452 | __ ldr(result, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); |
| 3453 | __ ldr(result, |
| 3454 | MemOperand(result, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 3455 | __ SmiUntag(result); |
| 3456 | |
| 3457 | // Argument length is in result register. |
| 3458 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3459 | } |
| 3460 | |
| 3461 | |
yangguo@chromium.org | 154ff99 | 2012-03-13 08:09:54 +0000 | [diff] [blame] | 3462 | void LCodeGen::DoWrapReceiver(LWrapReceiver* instr) { |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 3463 | Register receiver = ToRegister(instr->receiver()); |
| 3464 | Register function = ToRegister(instr->function()); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3465 | Register scratch = scratch0(); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 3466 | |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3467 | // If the receiver is null or undefined, we have to pass the global |
| 3468 | // object as a receiver to normal functions. Values have to be |
| 3469 | // passed unchanged to builtins and strict-mode functions. |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3470 | Label global_object, receiver_ok; |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3471 | |
| 3472 | // Do not transform the receiver to object for strict mode |
| 3473 | // functions. |
| 3474 | __ ldr(scratch, |
| 3475 | FieldMemOperand(function, JSFunction::kSharedFunctionInfoOffset)); |
| 3476 | __ ldr(scratch, |
| 3477 | FieldMemOperand(scratch, SharedFunctionInfo::kCompilerHintsOffset)); |
| 3478 | __ tst(scratch, |
| 3479 | Operand(1 << (SharedFunctionInfo::kStrictModeFunction + kSmiTagSize))); |
| 3480 | __ b(ne, &receiver_ok); |
| 3481 | |
| 3482 | // Do not transform the receiver to object for builtins. |
| 3483 | __ tst(scratch, Operand(1 << (SharedFunctionInfo::kNative + kSmiTagSize))); |
| 3484 | __ b(ne, &receiver_ok); |
| 3485 | |
| 3486 | // Normal function. Replace undefined or null with global receiver. |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3487 | __ LoadRoot(scratch, Heap::kNullValueRootIndex); |
| 3488 | __ cmp(receiver, scratch); |
| 3489 | __ b(eq, &global_object); |
| 3490 | __ LoadRoot(scratch, Heap::kUndefinedValueRootIndex); |
| 3491 | __ cmp(receiver, scratch); |
| 3492 | __ b(eq, &global_object); |
| 3493 | |
| 3494 | // Deoptimize if the receiver is not a JS object. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3495 | __ SmiTst(receiver); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3496 | DeoptimizeIf(eq, instr->environment()); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3497 | __ CompareObjectType(receiver, scratch, scratch, FIRST_SPEC_OBJECT_TYPE); |
| 3498 | DeoptimizeIf(lt, instr->environment()); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3499 | __ jmp(&receiver_ok); |
| 3500 | |
| 3501 | __ bind(&global_object); |
| 3502 | __ ldr(receiver, GlobalObjectOperand()); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3503 | __ ldr(receiver, |
| 3504 | FieldMemOperand(receiver, JSGlobalObject::kGlobalReceiverOffset)); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3505 | __ bind(&receiver_ok); |
yangguo@chromium.org | 154ff99 | 2012-03-13 08:09:54 +0000 | [diff] [blame] | 3506 | } |
| 3507 | |
| 3508 | |
| 3509 | void LCodeGen::DoApplyArguments(LApplyArguments* instr) { |
| 3510 | Register receiver = ToRegister(instr->receiver()); |
| 3511 | Register function = ToRegister(instr->function()); |
| 3512 | Register length = ToRegister(instr->length()); |
| 3513 | Register elements = ToRegister(instr->elements()); |
| 3514 | Register scratch = scratch0(); |
| 3515 | ASSERT(receiver.is(r0)); // Used for parameter count. |
| 3516 | ASSERT(function.is(r1)); // Required by InvokeFunction. |
| 3517 | ASSERT(ToRegister(instr->result()).is(r0)); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 3518 | |
| 3519 | // Copy the arguments to this function possibly from the |
| 3520 | // adaptor frame below it. |
| 3521 | const uint32_t kArgumentsLimit = 1 * KB; |
| 3522 | __ cmp(length, Operand(kArgumentsLimit)); |
| 3523 | DeoptimizeIf(hi, instr->environment()); |
| 3524 | |
| 3525 | // Push the receiver and use the register to keep the original |
| 3526 | // number of arguments. |
| 3527 | __ push(receiver); |
| 3528 | __ mov(receiver, length); |
| 3529 | // The arguments are at a one pointer size offset from elements. |
| 3530 | __ add(elements, elements, Operand(1 * kPointerSize)); |
| 3531 | |
| 3532 | // Loop through the arguments pushing them onto the execution |
| 3533 | // stack. |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3534 | Label invoke, loop; |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 3535 | // length is a small non-negative integer, due to the test above. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3536 | __ cmp(length, Operand::Zero()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 3537 | __ b(eq, &invoke); |
| 3538 | __ bind(&loop); |
| 3539 | __ ldr(scratch, MemOperand(elements, length, LSL, 2)); |
| 3540 | __ push(scratch); |
| 3541 | __ sub(length, length, Operand(1), SetCC); |
| 3542 | __ b(ne, &loop); |
| 3543 | |
| 3544 | __ bind(&invoke); |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 3545 | ASSERT(instr->HasPointerMap()); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 3546 | LPointerMap* pointers = instr->pointer_map(); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 3547 | RecordPosition(pointers->position()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 3548 | SafepointGenerator safepoint_generator( |
| 3549 | this, pointers, Safepoint::kLazyDeopt); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 3550 | // The number of arguments is stored in receiver which is r0, as expected |
| 3551 | // by InvokeFunction. |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3552 | ParameterCount actual(receiver); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3553 | __ InvokeFunction(function, actual, CALL_FUNCTION, |
| 3554 | safepoint_generator, CALL_AS_METHOD); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3555 | } |
| 3556 | |
| 3557 | |
| 3558 | void LCodeGen::DoPushArgument(LPushArgument* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3559 | LOperand* argument = instr->value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3560 | if (argument->IsDoubleRegister() || argument->IsDoubleStackSlot()) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 3561 | Abort(kDoPushArgumentNotImplementedForDoubleType); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3562 | } else { |
| 3563 | Register argument_reg = EmitLoadRegister(argument, ip); |
| 3564 | __ push(argument_reg); |
| 3565 | } |
| 3566 | } |
| 3567 | |
| 3568 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3569 | void LCodeGen::DoDrop(LDrop* instr) { |
| 3570 | __ Drop(instr->count()); |
| 3571 | } |
| 3572 | |
| 3573 | |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3574 | void LCodeGen::DoThisFunction(LThisFunction* instr) { |
| 3575 | Register result = ToRegister(instr->result()); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 3576 | __ ldr(result, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3577 | } |
| 3578 | |
| 3579 | |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3580 | void LCodeGen::DoContext(LContext* instr) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 3581 | // If there is a non-return use, the context must be moved to a register. |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3582 | Register result = ToRegister(instr->result()); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 3583 | if (info()->IsOptimizing()) { |
| 3584 | __ ldr(result, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 3585 | } else { |
| 3586 | // If there is no frame, the context must be in cp. |
| 3587 | ASSERT(result.is(cp)); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 3588 | } |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3589 | } |
| 3590 | |
| 3591 | |
| 3592 | void LCodeGen::DoOuterContext(LOuterContext* instr) { |
| 3593 | Register context = ToRegister(instr->context()); |
| 3594 | Register result = ToRegister(instr->result()); |
| 3595 | __ ldr(result, |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3596 | MemOperand(context, Context::SlotOffset(Context::PREVIOUS_INDEX))); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3597 | } |
| 3598 | |
| 3599 | |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3600 | void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 3601 | ASSERT(ToRegister(instr->context()).is(cp)); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3602 | __ push(cp); // The context is the first argument. |
| 3603 | __ LoadHeapObject(scratch0(), instr->hydrogen()->pairs()); |
| 3604 | __ push(scratch0()); |
| 3605 | __ mov(scratch0(), Operand(Smi::FromInt(instr->hydrogen()->flags()))); |
| 3606 | __ push(scratch0()); |
| 3607 | CallRuntime(Runtime::kDeclareGlobals, 3, instr); |
| 3608 | } |
| 3609 | |
| 3610 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3611 | void LCodeGen::DoGlobalObject(LGlobalObject* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 3612 | Register context = ToRegister(instr->context()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3613 | Register result = ToRegister(instr->result()); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 3614 | __ ldr(result, ContextOperand(context, Context::GLOBAL_OBJECT_INDEX)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3615 | } |
| 3616 | |
| 3617 | |
| 3618 | void LCodeGen::DoGlobalReceiver(LGlobalReceiver* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3619 | Register global = ToRegister(instr->global_object()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3620 | Register result = ToRegister(instr->result()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3621 | __ ldr(result, FieldMemOperand(global, GlobalObject::kGlobalReceiverOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3622 | } |
| 3623 | |
| 3624 | |
| 3625 | void LCodeGen::CallKnownFunction(Handle<JSFunction> function, |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3626 | int formal_parameter_count, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3627 | int arity, |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3628 | LInstruction* instr, |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 3629 | CallKind call_kind, |
| 3630 | R1State r1_state) { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3631 | bool dont_adapt_arguments = |
| 3632 | formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel; |
| 3633 | bool can_invoke_directly = |
| 3634 | dont_adapt_arguments || formal_parameter_count == arity; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3635 | |
| 3636 | LPointerMap* pointers = instr->pointer_map(); |
| 3637 | RecordPosition(pointers->position()); |
| 3638 | |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3639 | if (can_invoke_directly) { |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 3640 | if (r1_state == R1_UNINITIALIZED) { |
| 3641 | __ LoadHeapObject(r1, function); |
| 3642 | } |
| 3643 | |
verwaest@chromium.org | b6d052d | 2012-07-27 08:03:27 +0000 | [diff] [blame] | 3644 | // Change context. |
| 3645 | __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3646 | |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3647 | // Set r0 to arguments count if adaption is not needed. Assumes that r0 |
| 3648 | // is available to write to at this point. |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3649 | if (dont_adapt_arguments) { |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3650 | __ mov(r0, Operand(arity)); |
| 3651 | } |
| 3652 | |
| 3653 | // Invoke function. |
| 3654 | __ SetCallKind(r5, call_kind); |
| 3655 | __ ldr(ip, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); |
| 3656 | __ Call(ip); |
| 3657 | |
| 3658 | // Set up deoptimization. |
| 3659 | RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); |
| 3660 | } else { |
| 3661 | SafepointGenerator generator(this, pointers, Safepoint::kLazyDeopt); |
| 3662 | ParameterCount count(arity); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3663 | ParameterCount expected(formal_parameter_count); |
| 3664 | __ InvokeFunction( |
| 3665 | function, expected, count, CALL_FUNCTION, generator, call_kind); |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3666 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3667 | } |
| 3668 | |
| 3669 | |
| 3670 | void LCodeGen::DoCallConstantFunction(LCallConstantFunction* instr) { |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 3671 | ASSERT(ToRegister(instr->result()).is(r0)); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3672 | CallKnownFunction(instr->hydrogen()->function(), |
| 3673 | instr->hydrogen()->formal_parameter_count(), |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3674 | instr->arity(), |
| 3675 | instr, |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 3676 | CALL_AS_METHOD, |
| 3677 | R1_UNINITIALIZED); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3678 | } |
| 3679 | |
| 3680 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3681 | void LCodeGen::DoDeferredMathAbsTaggedHeapNumber(LMathAbs* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 3682 | ASSERT(instr->context() != NULL); |
| 3683 | ASSERT(ToRegister(instr->context()).is(cp)); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3684 | Register input = ToRegister(instr->value()); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 3685 | Register result = ToRegister(instr->result()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3686 | Register scratch = scratch0(); |
| 3687 | |
| 3688 | // Deoptimize if not a heap number. |
| 3689 | __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); |
| 3690 | __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); |
| 3691 | __ cmp(scratch, Operand(ip)); |
| 3692 | DeoptimizeIf(ne, instr->environment()); |
| 3693 | |
| 3694 | Label done; |
whesse@chromium.org | 7a392b3 | 2011-01-31 11:30:36 +0000 | [diff] [blame] | 3695 | Register exponent = scratch0(); |
| 3696 | scratch = no_reg; |
| 3697 | __ ldr(exponent, FieldMemOperand(input, HeapNumber::kExponentOffset)); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3698 | // Check the sign of the argument. If the argument is positive, just |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 3699 | // return it. |
whesse@chromium.org | 7a392b3 | 2011-01-31 11:30:36 +0000 | [diff] [blame] | 3700 | __ tst(exponent, Operand(HeapNumber::kSignMask)); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 3701 | // Move the input to the result if necessary. |
| 3702 | __ Move(result, input); |
whesse@chromium.org | 7a392b3 | 2011-01-31 11:30:36 +0000 | [diff] [blame] | 3703 | __ b(eq, &done); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3704 | |
whesse@chromium.org | 7a392b3 | 2011-01-31 11:30:36 +0000 | [diff] [blame] | 3705 | // Input is negative. Reverse its sign. |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3706 | // Preserve the value of all registers. |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3707 | { |
| 3708 | PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3709 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3710 | // Registers were saved at the safepoint, so we can use |
| 3711 | // many scratch registers. |
| 3712 | Register tmp1 = input.is(r1) ? r0 : r1; |
| 3713 | Register tmp2 = input.is(r2) ? r0 : r2; |
| 3714 | Register tmp3 = input.is(r3) ? r0 : r3; |
| 3715 | Register tmp4 = input.is(r4) ? r0 : r4; |
whesse@chromium.org | 7a392b3 | 2011-01-31 11:30:36 +0000 | [diff] [blame] | 3716 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3717 | // exponent: floating point exponent value. |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3718 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3719 | Label allocated, slow; |
| 3720 | __ LoadRoot(tmp4, Heap::kHeapNumberMapRootIndex); |
| 3721 | __ AllocateHeapNumber(tmp1, tmp2, tmp3, tmp4, &slow); |
| 3722 | __ b(&allocated); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3723 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3724 | // Slow case: Call the runtime system to do the number allocation. |
| 3725 | __ bind(&slow); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3726 | |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 3727 | CallRuntimeFromDeferred(Runtime::kAllocateHeapNumber, 0, instr, |
| 3728 | instr->context()); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3729 | // Set the pointer to the new heap number in tmp. |
| 3730 | if (!tmp1.is(r0)) __ mov(tmp1, Operand(r0)); |
| 3731 | // Restore input_reg after call to runtime. |
| 3732 | __ LoadFromSafepointRegisterSlot(input, input); |
| 3733 | __ ldr(exponent, FieldMemOperand(input, HeapNumber::kExponentOffset)); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3734 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3735 | __ bind(&allocated); |
| 3736 | // exponent: floating point exponent value. |
| 3737 | // tmp1: allocated heap number. |
| 3738 | __ bic(exponent, exponent, Operand(HeapNumber::kSignMask)); |
| 3739 | __ str(exponent, FieldMemOperand(tmp1, HeapNumber::kExponentOffset)); |
| 3740 | __ ldr(tmp2, FieldMemOperand(input, HeapNumber::kMantissaOffset)); |
| 3741 | __ str(tmp2, FieldMemOperand(tmp1, HeapNumber::kMantissaOffset)); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3742 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 3743 | __ StoreToSafepointRegisterSlot(tmp1, result); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3744 | } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3745 | |
| 3746 | __ bind(&done); |
| 3747 | } |
| 3748 | |
| 3749 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3750 | void LCodeGen::EmitIntegerMathAbs(LMathAbs* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3751 | Register input = ToRegister(instr->value()); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 3752 | Register result = ToRegister(instr->result()); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3753 | __ cmp(input, Operand::Zero()); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 3754 | __ Move(result, input, pl); |
whesse@chromium.org | 7a392b3 | 2011-01-31 11:30:36 +0000 | [diff] [blame] | 3755 | // We can make rsb conditional because the previous cmp instruction |
| 3756 | // will clear the V (overflow) flag and rsb won't set this flag |
| 3757 | // if input is positive. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3758 | __ rsb(result, input, Operand::Zero(), SetCC, mi); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3759 | // Deoptimize on overflow. |
| 3760 | DeoptimizeIf(vs, instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3761 | } |
| 3762 | |
| 3763 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3764 | void LCodeGen::DoMathAbs(LMathAbs* instr) { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3765 | // Class for deferred case. |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 3766 | class DeferredMathAbsTaggedHeapNumber V8_FINAL : public LDeferredCode { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3767 | public: |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3768 | DeferredMathAbsTaggedHeapNumber(LCodeGen* codegen, LMathAbs* instr) |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3769 | : LDeferredCode(codegen), instr_(instr) { } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 3770 | virtual void Generate() V8_OVERRIDE { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3771 | codegen()->DoDeferredMathAbsTaggedHeapNumber(instr_); |
| 3772 | } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 3773 | virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3774 | private: |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3775 | LMathAbs* instr_; |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3776 | }; |
| 3777 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3778 | Representation r = instr->hydrogen()->value()->representation(); |
| 3779 | if (r.IsDouble()) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3780 | DwVfpRegister input = ToDoubleRegister(instr->value()); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 3781 | DwVfpRegister result = ToDoubleRegister(instr->result()); |
| 3782 | __ vabs(result, input); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 3783 | } else if (r.IsSmiOrInteger32()) { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3784 | EmitIntegerMathAbs(instr); |
| 3785 | } else { |
| 3786 | // Representation is tagged. |
| 3787 | DeferredMathAbsTaggedHeapNumber* deferred = |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3788 | new(zone()) DeferredMathAbsTaggedHeapNumber(this, instr); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3789 | Register input = ToRegister(instr->value()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3790 | // Smi check. |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 3791 | __ JumpIfNotSmi(input, deferred->entry()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3792 | // If smi, handle it directly. |
| 3793 | EmitIntegerMathAbs(instr); |
| 3794 | __ bind(deferred->exit()); |
| 3795 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3796 | } |
| 3797 | |
| 3798 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3799 | void LCodeGen::DoMathFloor(LMathFloor* instr) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3800 | DwVfpRegister input = ToDoubleRegister(instr->value()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3801 | Register result = ToRegister(instr->result()); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3802 | Register input_high = scratch0(); |
| 3803 | Label done, exact; |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 3804 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3805 | __ TryInt32Floor(result, input, input_high, double_scratch0(), &done, &exact); |
| 3806 | DeoptimizeIf(al, instr->environment()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 3807 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3808 | __ bind(&exact); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3809 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 3810 | // Test for -0. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3811 | __ cmp(result, Operand::Zero()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3812 | __ b(ne, &done); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3813 | __ cmp(input_high, Operand::Zero()); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 3814 | DeoptimizeIf(mi, instr->environment()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3815 | } |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 3816 | __ bind(&done); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3817 | } |
| 3818 | |
| 3819 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3820 | void LCodeGen::DoMathRound(LMathRound* instr) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3821 | DwVfpRegister input = ToDoubleRegister(instr->value()); |
| 3822 | Register result = ToRegister(instr->result()); |
| 3823 | DwVfpRegister double_scratch1 = ToDoubleRegister(instr->temp()); |
| 3824 | DwVfpRegister input_plus_dot_five = double_scratch1; |
| 3825 | Register input_high = scratch0(); |
| 3826 | DwVfpRegister dot_five = double_scratch0(); |
| 3827 | Label convert, done; |
| 3828 | |
| 3829 | __ Vmov(dot_five, 0.5, scratch0()); |
| 3830 | __ vabs(double_scratch1, input); |
| 3831 | __ VFPCompareAndSetFlags(double_scratch1, dot_five); |
| 3832 | // If input is in [-0.5, -0], the result is -0. |
| 3833 | // If input is in [+0, +0.5[, the result is +0. |
| 3834 | // If the input is +0.5, the result is 1. |
| 3835 | __ b(hi, &convert); // Out of [-0.5, +0.5]. |
| 3836 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 3837 | __ VmovHigh(input_high, input); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3838 | __ cmp(input_high, Operand::Zero()); |
| 3839 | DeoptimizeIf(mi, instr->environment()); // [-0.5, -0]. |
| 3840 | } |
| 3841 | __ VFPCompareAndSetFlags(input, dot_five); |
| 3842 | __ mov(result, Operand(1), LeaveCC, eq); // +0.5. |
| 3843 | // Remaining cases: [+0, +0.5[ or [-0.5, +0.5[, depending on |
| 3844 | // flag kBailoutOnMinusZero. |
| 3845 | __ mov(result, Operand::Zero(), LeaveCC, ne); |
| 3846 | __ b(&done); |
| 3847 | |
| 3848 | __ bind(&convert); |
| 3849 | __ vadd(input_plus_dot_five, input, dot_five); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3850 | // Reuse dot_five (double_scratch0) as we no longer need this value. |
| 3851 | __ TryInt32Floor(result, input_plus_dot_five, input_high, double_scratch0(), |
| 3852 | &done, &done); |
| 3853 | DeoptimizeIf(al, instr->environment()); |
| 3854 | __ bind(&done); |
| 3855 | } |
| 3856 | |
| 3857 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3858 | void LCodeGen::DoMathSqrt(LMathSqrt* instr) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3859 | DwVfpRegister input = ToDoubleRegister(instr->value()); |
| 3860 | DwVfpRegister result = ToDoubleRegister(instr->result()); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 3861 | __ vsqrt(result, input); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3862 | } |
| 3863 | |
| 3864 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3865 | void LCodeGen::DoMathPowHalf(LMathPowHalf* instr) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3866 | DwVfpRegister input = ToDoubleRegister(instr->value()); |
| 3867 | DwVfpRegister result = ToDoubleRegister(instr->result()); |
| 3868 | DwVfpRegister temp = ToDoubleRegister(instr->temp()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3869 | |
| 3870 | // Note that according to ECMA-262 15.8.2.13: |
| 3871 | // Math.pow(-Infinity, 0.5) == Infinity |
| 3872 | // Math.sqrt(-Infinity) == NaN |
| 3873 | Label done; |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3874 | __ vmov(temp, -V8_INFINITY, scratch0()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3875 | __ VFPCompareAndSetFlags(input, temp); |
| 3876 | __ vneg(result, temp, eq); |
| 3877 | __ b(&done, eq); |
| 3878 | |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3879 | // Add +0 to convert -0 to +0. |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 3880 | __ vadd(result, input, kDoubleRegZero); |
| 3881 | __ vsqrt(result, result); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3882 | __ bind(&done); |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3883 | } |
| 3884 | |
| 3885 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3886 | void LCodeGen::DoPower(LPower* instr) { |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3887 | Representation exponent_type = instr->hydrogen()->right()->representation(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3888 | // Having marked this as a call, we can use any registers. |
| 3889 | // Just make sure that the input/output registers are the expected ones. |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3890 | ASSERT(!instr->right()->IsDoubleRegister() || |
| 3891 | ToDoubleRegister(instr->right()).is(d2)); |
| 3892 | ASSERT(!instr->right()->IsRegister() || |
| 3893 | ToRegister(instr->right()).is(r2)); |
| 3894 | ASSERT(ToDoubleRegister(instr->left()).is(d1)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3895 | ASSERT(ToDoubleRegister(instr->result()).is(d3)); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3896 | |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 3897 | if (exponent_type.IsSmi()) { |
| 3898 | MathPowStub stub(MathPowStub::TAGGED); |
| 3899 | __ CallStub(&stub); |
| 3900 | } else if (exponent_type.IsTagged()) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3901 | Label no_deopt; |
| 3902 | __ JumpIfSmi(r2, &no_deopt); |
machenbach@chromium.org | 3d079fe | 2013-09-25 08:19:55 +0000 | [diff] [blame] | 3903 | __ ldr(r6, FieldMemOperand(r2, HeapObject::kMapOffset)); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3904 | __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); |
machenbach@chromium.org | 3d079fe | 2013-09-25 08:19:55 +0000 | [diff] [blame] | 3905 | __ cmp(r6, Operand(ip)); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3906 | DeoptimizeIf(ne, instr->environment()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3907 | __ bind(&no_deopt); |
| 3908 | MathPowStub stub(MathPowStub::TAGGED); |
| 3909 | __ CallStub(&stub); |
| 3910 | } else if (exponent_type.IsInteger32()) { |
| 3911 | MathPowStub stub(MathPowStub::INTEGER); |
| 3912 | __ CallStub(&stub); |
| 3913 | } else { |
| 3914 | ASSERT(exponent_type.IsDouble()); |
| 3915 | MathPowStub stub(MathPowStub::DOUBLE); |
| 3916 | __ CallStub(&stub); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3917 | } |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3918 | } |
| 3919 | |
| 3920 | |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 3921 | void LCodeGen::DoRandom(LRandom* instr) { |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3922 | // Assert that the register size is indeed the size of each seed. |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3923 | static const int kSeedSize = sizeof(uint32_t); |
| 3924 | STATIC_ASSERT(kPointerSize == kSeedSize); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 3925 | |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3926 | // Load native context |
| 3927 | Register global_object = ToRegister(instr->global_object()); |
| 3928 | Register native_context = global_object; |
| 3929 | __ ldr(native_context, FieldMemOperand( |
| 3930 | global_object, GlobalObject::kNativeContextOffset)); |
| 3931 | |
| 3932 | // Load state (FixedArray of the native context's random seeds) |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3933 | static const int kRandomSeedOffset = |
| 3934 | FixedArray::kHeaderSize + Context::RANDOM_SEED_INDEX * kPointerSize; |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3935 | Register state = native_context; |
| 3936 | __ ldr(state, FieldMemOperand(native_context, kRandomSeedOffset)); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3937 | |
| 3938 | // Load state[0]. |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3939 | Register state0 = ToRegister(instr->scratch()); |
| 3940 | __ ldr(state0, FieldMemOperand(state, ByteArray::kHeaderSize)); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3941 | // Load state[1]. |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3942 | Register state1 = ToRegister(instr->scratch2()); |
| 3943 | __ ldr(state1, FieldMemOperand(state, ByteArray::kHeaderSize + kSeedSize)); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3944 | |
| 3945 | // state[0] = 18273 * (state[0] & 0xFFFF) + (state[0] >> 16) |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3946 | Register scratch3 = ToRegister(instr->scratch3()); |
| 3947 | Register scratch4 = scratch0(); |
| 3948 | __ and_(scratch3, state0, Operand(0xFFFF)); |
| 3949 | __ mov(scratch4, Operand(18273)); |
| 3950 | __ mul(scratch3, scratch3, scratch4); |
| 3951 | __ add(state0, scratch3, Operand(state0, LSR, 16)); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3952 | // Save state[0]. |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3953 | __ str(state0, FieldMemOperand(state, ByteArray::kHeaderSize)); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3954 | |
| 3955 | // state[1] = 36969 * (state[1] & 0xFFFF) + (state[1] >> 16) |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3956 | __ and_(scratch3, state1, Operand(0xFFFF)); |
| 3957 | __ mov(scratch4, Operand(36969)); |
| 3958 | __ mul(scratch3, scratch3, scratch4); |
| 3959 | __ add(state1, scratch3, Operand(state1, LSR, 16)); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3960 | // Save state[1]. |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3961 | __ str(state1, FieldMemOperand(state, ByteArray::kHeaderSize + kSeedSize)); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3962 | |
| 3963 | // Random bit pattern = (state[0] << 14) + (state[1] & 0x3FFFF) |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3964 | Register random = scratch4; |
| 3965 | __ and_(random, state1, Operand(0x3FFFF)); |
| 3966 | __ add(random, random, Operand(state0, LSL, 14)); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3967 | |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 3968 | // 0x41300000 is the top half of 1.0 x 2^20 as a double. |
| 3969 | // Create this constant using mov/orr to avoid PC relative load. |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3970 | __ mov(scratch3, Operand(0x41000000)); |
| 3971 | __ orr(scratch3, scratch3, Operand(0x300000)); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 3972 | // Move 0x41300000xxxxxxxx (x = random bits) to VFP. |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3973 | DwVfpRegister result = ToDoubleRegister(instr->result()); |
| 3974 | __ vmov(result, random, scratch3); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 3975 | // Move 0x4130000000000000 to VFP. |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 3976 | __ mov(scratch4, Operand::Zero()); |
| 3977 | DwVfpRegister scratch5 = double_scratch0(); |
| 3978 | __ vmov(scratch5, scratch4, scratch3); |
| 3979 | __ vsub(result, result, scratch5); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 3980 | } |
| 3981 | |
| 3982 | |
danno@chromium.org | 1f34ad3 | 2012-11-26 14:53:56 +0000 | [diff] [blame] | 3983 | void LCodeGen::DoMathExp(LMathExp* instr) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 3984 | DwVfpRegister input = ToDoubleRegister(instr->value()); |
| 3985 | DwVfpRegister result = ToDoubleRegister(instr->result()); |
| 3986 | DwVfpRegister double_scratch1 = ToDoubleRegister(instr->double_temp()); |
| 3987 | DwVfpRegister double_scratch2 = double_scratch0(); |
danno@chromium.org | 1f34ad3 | 2012-11-26 14:53:56 +0000 | [diff] [blame] | 3988 | Register temp1 = ToRegister(instr->temp1()); |
| 3989 | Register temp2 = ToRegister(instr->temp2()); |
| 3990 | |
| 3991 | MathExpGenerator::EmitMathExp( |
| 3992 | masm(), input, result, double_scratch1, double_scratch2, |
| 3993 | temp1, temp2, scratch0()); |
| 3994 | } |
| 3995 | |
| 3996 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3997 | void LCodeGen::DoMathLog(LMathLog* instr) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 3998 | ASSERT(ToDoubleRegister(instr->result()).is(d2)); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 3999 | // Set the context register to a GC-safe fake value. Clobbering it is |
| 4000 | // OK because this instruction is marked as a call. |
| 4001 | __ mov(cp, Operand::Zero()); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4002 | TranscendentalCacheStub stub(TranscendentalCache::LOG, |
| 4003 | TranscendentalCacheStub::UNTAGGED); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4004 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4005 | } |
| 4006 | |
| 4007 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4008 | void LCodeGen::DoMathTan(LMathTan* instr) { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4009 | ASSERT(ToDoubleRegister(instr->result()).is(d2)); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4010 | // Set the context register to a GC-safe fake value. Clobbering it is |
| 4011 | // OK because this instruction is marked as a call. |
| 4012 | __ mov(cp, Operand::Zero()); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4013 | TranscendentalCacheStub stub(TranscendentalCache::TAN, |
| 4014 | TranscendentalCacheStub::UNTAGGED); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4015 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4016 | } |
| 4017 | |
| 4018 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4019 | void LCodeGen::DoMathCos(LMathCos* instr) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4020 | ASSERT(ToDoubleRegister(instr->result()).is(d2)); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4021 | // Set the context register to a GC-safe fake value. Clobbering it is |
| 4022 | // OK because this instruction is marked as a call. |
| 4023 | __ mov(cp, Operand::Zero()); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4024 | TranscendentalCacheStub stub(TranscendentalCache::COS, |
| 4025 | TranscendentalCacheStub::UNTAGGED); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4026 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4027 | } |
| 4028 | |
| 4029 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4030 | void LCodeGen::DoMathSin(LMathSin* instr) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4031 | ASSERT(ToDoubleRegister(instr->result()).is(d2)); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4032 | // Set the context register to a GC-safe fake value. Clobbering it is |
| 4033 | // OK because this instruction is marked as a call. |
| 4034 | __ mov(cp, Operand::Zero()); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4035 | TranscendentalCacheStub stub(TranscendentalCache::SIN, |
| 4036 | TranscendentalCacheStub::UNTAGGED); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4037 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4038 | } |
| 4039 | |
| 4040 | |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 4041 | void LCodeGen::DoInvokeFunction(LInvokeFunction* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4042 | ASSERT(ToRegister(instr->context()).is(cp)); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 4043 | ASSERT(ToRegister(instr->function()).is(r1)); |
| 4044 | ASSERT(instr->HasPointerMap()); |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 4045 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 4046 | Handle<JSFunction> known_function = instr->hydrogen()->known_function(); |
| 4047 | if (known_function.is_null()) { |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 4048 | LPointerMap* pointers = instr->pointer_map(); |
| 4049 | RecordPosition(pointers->position()); |
| 4050 | SafepointGenerator generator(this, pointers, Safepoint::kLazyDeopt); |
| 4051 | ParameterCount count(instr->arity()); |
| 4052 | __ InvokeFunction(r1, count, CALL_FUNCTION, generator, CALL_AS_METHOD); |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 4053 | } else { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 4054 | CallKnownFunction(known_function, |
| 4055 | instr->hydrogen()->formal_parameter_count(), |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 4056 | instr->arity(), |
| 4057 | instr, |
| 4058 | CALL_AS_METHOD, |
| 4059 | R1_CONTAINS_TARGET); |
| 4060 | } |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 4061 | } |
| 4062 | |
| 4063 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4064 | void LCodeGen::DoCallKeyed(LCallKeyed* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4065 | ASSERT(ToRegister(instr->context()).is(cp)); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4066 | ASSERT(ToRegister(instr->result()).is(r0)); |
| 4067 | |
| 4068 | int arity = instr->arity(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4069 | Handle<Code> ic = |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 4070 | isolate()->stub_cache()->ComputeKeyedCallInitialize(arity); |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 4071 | CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4072 | } |
| 4073 | |
| 4074 | |
| 4075 | void LCodeGen::DoCallNamed(LCallNamed* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4076 | ASSERT(ToRegister(instr->context()).is(cp)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4077 | ASSERT(ToRegister(instr->result()).is(r0)); |
| 4078 | |
| 4079 | int arity = instr->arity(); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4080 | RelocInfo::Mode mode = RelocInfo::CODE_TARGET; |
| 4081 | Handle<Code> ic = |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 4082 | isolate()->stub_cache()->ComputeCallInitialize(arity, mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4083 | __ mov(r2, Operand(instr->name())); |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 4084 | CallCode(ic, mode, instr, NEVER_INLINE_TARGET_ADDRESS); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4085 | } |
| 4086 | |
| 4087 | |
| 4088 | void LCodeGen::DoCallFunction(LCallFunction* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4089 | ASSERT(ToRegister(instr->context()).is(cp)); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 4090 | ASSERT(ToRegister(instr->function()).is(r1)); |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 4091 | ASSERT(ToRegister(instr->result()).is(r0)); |
| 4092 | |
| 4093 | int arity = instr->arity(); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4094 | CallFunctionStub stub(arity, NO_CALL_FUNCTION_FLAGS); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4095 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4096 | } |
| 4097 | |
| 4098 | |
| 4099 | void LCodeGen::DoCallGlobal(LCallGlobal* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4100 | ASSERT(ToRegister(instr->context()).is(cp)); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4101 | ASSERT(ToRegister(instr->result()).is(r0)); |
| 4102 | |
| 4103 | int arity = instr->arity(); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4104 | RelocInfo::Mode mode = RelocInfo::CODE_TARGET_CONTEXT; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4105 | Handle<Code> ic = |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 4106 | isolate()->stub_cache()->ComputeCallInitialize(arity, mode); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4107 | __ mov(r2, Operand(instr->name())); |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 4108 | CallCode(ic, mode, instr, NEVER_INLINE_TARGET_ADDRESS); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4109 | } |
| 4110 | |
| 4111 | |
| 4112 | void LCodeGen::DoCallKnownGlobal(LCallKnownGlobal* instr) { |
| 4113 | ASSERT(ToRegister(instr->result()).is(r0)); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 4114 | CallKnownFunction(instr->hydrogen()->target(), |
| 4115 | instr->hydrogen()->formal_parameter_count(), |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 4116 | instr->arity(), |
| 4117 | instr, |
| 4118 | CALL_AS_FUNCTION, |
| 4119 | R1_UNINITIALIZED); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4120 | } |
| 4121 | |
| 4122 | |
| 4123 | void LCodeGen::DoCallNew(LCallNew* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4124 | ASSERT(ToRegister(instr->context()).is(cp)); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4125 | ASSERT(ToRegister(instr->constructor()).is(r1)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4126 | ASSERT(ToRegister(instr->result()).is(r0)); |
| 4127 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4128 | __ mov(r0, Operand(instr->arity())); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 4129 | // No cell in r2 for construct type feedback in optimized code |
| 4130 | Handle<Object> undefined_value(isolate()->factory()->undefined_value()); |
| 4131 | __ mov(r2, Operand(undefined_value)); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4132 | CallConstructStub stub(NO_CALL_FUNCTION_FLAGS); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4133 | CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4134 | } |
| 4135 | |
| 4136 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4137 | void LCodeGen::DoCallNewArray(LCallNewArray* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4138 | ASSERT(ToRegister(instr->context()).is(cp)); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4139 | ASSERT(ToRegister(instr->constructor()).is(r1)); |
| 4140 | ASSERT(ToRegister(instr->result()).is(r0)); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4141 | |
| 4142 | __ mov(r0, Operand(instr->arity())); |
| 4143 | __ mov(r2, Operand(instr->hydrogen()->property_cell())); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4144 | ElementsKind kind = instr->hydrogen()->elements_kind(); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 4145 | AllocationSiteOverrideMode override_mode = |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 4146 | (AllocationSite::GetMode(kind) == TRACK_ALLOCATION_SITE) |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 4147 | ? DISABLE_ALLOCATION_SITES |
| 4148 | : DONT_OVERRIDE; |
| 4149 | ContextCheckMode context_mode = CONTEXT_CHECK_NOT_REQUIRED; |
verwaest@chromium.org | d4be0f0 | 2013-06-05 13:39:03 +0000 | [diff] [blame] | 4150 | |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 4151 | if (instr->arity() == 0) { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 4152 | ArrayNoArgumentConstructorStub stub(kind, context_mode, override_mode); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 4153 | CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); |
| 4154 | } else if (instr->arity() == 1) { |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 4155 | Label done; |
| 4156 | if (IsFastPackedElementsKind(kind)) { |
| 4157 | Label packed_case; |
| 4158 | // We might need a change here |
| 4159 | // look at the first argument |
| 4160 | __ ldr(r5, MemOperand(sp, 0)); |
| 4161 | __ cmp(r5, Operand::Zero()); |
| 4162 | __ b(eq, &packed_case); |
| 4163 | |
| 4164 | ElementsKind holey_kind = GetHoleyElementsKind(kind); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 4165 | ArraySingleArgumentConstructorStub stub(holey_kind, context_mode, |
| 4166 | override_mode); |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 4167 | CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); |
| 4168 | __ jmp(&done); |
| 4169 | __ bind(&packed_case); |
| 4170 | } |
| 4171 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 4172 | ArraySingleArgumentConstructorStub stub(kind, context_mode, override_mode); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 4173 | CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 4174 | __ bind(&done); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 4175 | } else { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 4176 | ArrayNArgumentsConstructorStub stub(kind, context_mode, override_mode); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 4177 | CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); |
| 4178 | } |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4179 | } |
| 4180 | |
| 4181 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4182 | void LCodeGen::DoCallRuntime(LCallRuntime* instr) { |
| 4183 | CallRuntime(instr->function(), instr->arity(), instr); |
| 4184 | } |
| 4185 | |
| 4186 | |
verwaest@chromium.org | 662436e | 2013-08-28 08:41:27 +0000 | [diff] [blame] | 4187 | void LCodeGen::DoStoreCodeEntry(LStoreCodeEntry* instr) { |
| 4188 | Register function = ToRegister(instr->function()); |
| 4189 | Register code_object = ToRegister(instr->code_object()); |
| 4190 | __ add(code_object, code_object, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 4191 | __ str(code_object, |
| 4192 | FieldMemOperand(function, JSFunction::kCodeEntryOffset)); |
| 4193 | } |
| 4194 | |
| 4195 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 4196 | void LCodeGen::DoInnerAllocatedObject(LInnerAllocatedObject* instr) { |
| 4197 | Register result = ToRegister(instr->result()); |
| 4198 | Register base = ToRegister(instr->base_object()); |
| 4199 | __ add(result, base, Operand(instr->offset())); |
| 4200 | } |
| 4201 | |
| 4202 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4203 | void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4204 | Representation representation = instr->representation(); |
| 4205 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4206 | Register object = ToRegister(instr->object()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4207 | Register scratch = scratch0(); |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 4208 | HObjectAccess access = instr->hydrogen()->access(); |
| 4209 | int offset = access.offset(); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4210 | |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 4211 | if (access.IsExternalMemory()) { |
| 4212 | Register value = ToRegister(instr->value()); |
| 4213 | __ str(value, MemOperand(object, offset)); |
| 4214 | return; |
| 4215 | } |
| 4216 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4217 | Handle<Map> transition = instr->transition(); |
| 4218 | |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 4219 | if (FLAG_track_heap_object_fields && representation.IsHeapObject()) { |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 4220 | Register value = ToRegister(instr->value()); |
| 4221 | if (!instr->hydrogen()->value()->type().IsHeapObject()) { |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 4222 | __ SmiTst(value); |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 4223 | DeoptimizeIf(eq, instr->environment()); |
| 4224 | } |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4225 | } else if (FLAG_track_double_fields && representation.IsDouble()) { |
| 4226 | ASSERT(transition.is_null()); |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 4227 | ASSERT(access.IsInobject()); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4228 | ASSERT(!instr->hydrogen()->NeedsWriteBarrier()); |
| 4229 | DwVfpRegister value = ToDoubleRegister(instr->value()); |
| 4230 | __ vstr(value, FieldMemOperand(object, offset)); |
| 4231 | return; |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4232 | } |
| 4233 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4234 | if (!transition.is_null()) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4235 | __ mov(scratch, Operand(transition)); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4236 | __ str(scratch, FieldMemOperand(object, HeapObject::kMapOffset)); |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 4237 | if (instr->hydrogen()->NeedsWriteBarrierForMap()) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4238 | Register temp = ToRegister(instr->temp()); |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 4239 | // Update the write barrier for the map field. |
| 4240 | __ RecordWriteField(object, |
| 4241 | HeapObject::kMapOffset, |
| 4242 | scratch, |
| 4243 | temp, |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 4244 | GetLinkRegisterState(), |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 4245 | kSaveFPRegs, |
| 4246 | OMIT_REMEMBERED_SET, |
| 4247 | OMIT_SMI_CHECK); |
| 4248 | } |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4249 | } |
| 4250 | |
| 4251 | // Do the store. |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4252 | Register value = ToRegister(instr->value()); |
| 4253 | ASSERT(!object.is(value)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4254 | SmiCheck check_needed = |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 4255 | instr->hydrogen()->value()->IsHeapObject() |
| 4256 | ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 4257 | if (access.IsInobject()) { |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4258 | __ str(value, FieldMemOperand(object, offset)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4259 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4260 | // Update the write barrier for the object for in-object properties. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4261 | __ RecordWriteField(object, |
| 4262 | offset, |
| 4263 | value, |
| 4264 | scratch, |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 4265 | GetLinkRegisterState(), |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4266 | kSaveFPRegs, |
| 4267 | EMIT_REMEMBERED_SET, |
| 4268 | check_needed); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4269 | } |
| 4270 | } else { |
| 4271 | __ ldr(scratch, FieldMemOperand(object, JSObject::kPropertiesOffset)); |
| 4272 | __ str(value, FieldMemOperand(scratch, offset)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4273 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4274 | // Update the write barrier for the properties array. |
| 4275 | // object is used as a scratch register. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4276 | __ RecordWriteField(scratch, |
| 4277 | offset, |
| 4278 | value, |
| 4279 | object, |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 4280 | GetLinkRegisterState(), |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4281 | kSaveFPRegs, |
| 4282 | EMIT_REMEMBERED_SET, |
| 4283 | check_needed); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4284 | } |
| 4285 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4286 | } |
| 4287 | |
| 4288 | |
| 4289 | void LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4290 | ASSERT(ToRegister(instr->context()).is(cp)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4291 | ASSERT(ToRegister(instr->object()).is(r1)); |
| 4292 | ASSERT(ToRegister(instr->value()).is(r0)); |
| 4293 | |
| 4294 | // Name is always in r2. |
| 4295 | __ mov(r2, Operand(instr->name())); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4296 | Handle<Code> ic = (instr->strict_mode_flag() == kStrictMode) |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 4297 | ? isolate()->builtins()->StoreIC_Initialize_Strict() |
| 4298 | : isolate()->builtins()->StoreIC_Initialize(); |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 4299 | CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4300 | } |
| 4301 | |
| 4302 | |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 4303 | void LCodeGen::ApplyCheckIf(Condition condition, LBoundsCheck* check) { |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 4304 | if (FLAG_debug_code && check->hydrogen()->skip_check()) { |
| 4305 | Label done; |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 4306 | __ b(NegateCondition(condition), &done); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 4307 | __ stop("eliminated bounds check failed"); |
| 4308 | __ bind(&done); |
| 4309 | } else { |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 4310 | DeoptimizeIf(condition, check->environment()); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 4311 | } |
| 4312 | } |
| 4313 | |
| 4314 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4315 | void LCodeGen::DoBoundsCheck(LBoundsCheck* instr) { |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 4316 | if (instr->hydrogen()->skip_check()) return; |
| 4317 | |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 4318 | if (instr->index()->IsConstantOperand()) { |
| 4319 | int constant_index = |
| 4320 | ToInteger32(LConstantOperand::cast(instr->index())); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 4321 | if (instr->hydrogen()->length()->representation().IsSmi()) { |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 4322 | __ mov(ip, Operand(Smi::FromInt(constant_index))); |
| 4323 | } else { |
| 4324 | __ mov(ip, Operand(constant_index)); |
| 4325 | } |
| 4326 | __ cmp(ip, ToRegister(instr->length())); |
| 4327 | } else { |
| 4328 | __ cmp(ToRegister(instr->index()), ToRegister(instr->length())); |
| 4329 | } |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 4330 | Condition condition = instr->hydrogen()->allow_equality() ? hi : hs; |
| 4331 | ApplyCheckIf(condition, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4332 | } |
| 4333 | |
| 4334 | |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4335 | void LCodeGen::DoStoreKeyedExternalArray(LStoreKeyed* instr) { |
| 4336 | Register external_pointer = ToRegister(instr->elements()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4337 | Register key = no_reg; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4338 | ElementsKind elements_kind = instr->elements_kind(); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4339 | bool key_is_constant = instr->key()->IsConstantOperand(); |
| 4340 | int constant_key = 0; |
| 4341 | if (key_is_constant) { |
| 4342 | constant_key = ToInteger32(LConstantOperand::cast(instr->key())); |
| 4343 | if (constant_key & 0xF0000000) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 4344 | Abort(kArrayIndexConstantValueTooBig); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4345 | } |
| 4346 | } else { |
| 4347 | key = ToRegister(instr->key()); |
| 4348 | } |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 4349 | int element_size_shift = ElementsKindToShiftSize(elements_kind); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 4350 | int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 4351 | ? (element_size_shift - kSmiTagSize) : element_size_shift; |
| 4352 | int additional_offset = instr->additional_index() << element_size_shift; |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 4353 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4354 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS || |
| 4355 | elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4356 | Register address = scratch0(); |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 4357 | DwVfpRegister value(ToDoubleRegister(instr->value())); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4358 | if (key_is_constant) { |
| 4359 | if (constant_key != 0) { |
| 4360 | __ add(address, external_pointer, |
| 4361 | Operand(constant_key << element_size_shift)); |
| 4362 | } else { |
| 4363 | address = external_pointer; |
| 4364 | } |
| 4365 | } else { |
| 4366 | __ add(address, external_pointer, Operand(key, LSL, shift_size)); |
| 4367 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4368 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4369 | __ vcvt_f32_f64(double_scratch0().low(), value); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4370 | __ vstr(double_scratch0().low(), address, additional_offset); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4371 | } else { // i.e. elements_kind == EXTERNAL_DOUBLE_ELEMENTS |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4372 | __ vstr(value, address, additional_offset); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4373 | } |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4374 | } else { |
| 4375 | Register value(ToRegister(instr->value())); |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 4376 | MemOperand mem_operand = PrepareKeyedOperand( |
| 4377 | key, external_pointer, key_is_constant, constant_key, |
| 4378 | element_size_shift, shift_size, |
| 4379 | instr->additional_index(), additional_offset); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4380 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4381 | case EXTERNAL_PIXEL_ELEMENTS: |
| 4382 | case EXTERNAL_BYTE_ELEMENTS: |
| 4383 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4384 | __ strb(value, mem_operand); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4385 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4386 | case EXTERNAL_SHORT_ELEMENTS: |
| 4387 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4388 | __ strh(value, mem_operand); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4389 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4390 | case EXTERNAL_INT_ELEMENTS: |
| 4391 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4392 | __ str(value, mem_operand); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4393 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4394 | case EXTERNAL_FLOAT_ELEMENTS: |
| 4395 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 4396 | case FAST_DOUBLE_ELEMENTS: |
| 4397 | case FAST_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4398 | case FAST_SMI_ELEMENTS: |
| 4399 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 4400 | case FAST_HOLEY_ELEMENTS: |
| 4401 | case FAST_HOLEY_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4402 | case DICTIONARY_ELEMENTS: |
| 4403 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4404 | UNREACHABLE(); |
| 4405 | break; |
| 4406 | } |
| 4407 | } |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 4408 | } |
| 4409 | |
| 4410 | |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4411 | void LCodeGen::DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr) { |
| 4412 | DwVfpRegister value = ToDoubleRegister(instr->value()); |
| 4413 | Register elements = ToRegister(instr->elements()); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4414 | Register scratch = scratch0(); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4415 | DwVfpRegister double_scratch = double_scratch0(); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4416 | bool key_is_constant = instr->key()->IsConstantOperand(); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4417 | |
| 4418 | // Calculate the effective address of the slot in the array to store the |
| 4419 | // double value. |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4420 | int element_size_shift = ElementsKindToShiftSize(FAST_DOUBLE_ELEMENTS); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4421 | if (key_is_constant) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4422 | int constant_key = ToInteger32(LConstantOperand::cast(instr->key())); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4423 | if (constant_key & 0xF0000000) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 4424 | Abort(kArrayIndexConstantValueTooBig); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4425 | } |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4426 | __ add(scratch, elements, |
| 4427 | Operand((constant_key << element_size_shift) + |
| 4428 | FixedDoubleArray::kHeaderSize - kHeapObjectTag)); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4429 | } else { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4430 | int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) |
| 4431 | ? (element_size_shift - kSmiTagSize) : element_size_shift; |
| 4432 | __ add(scratch, elements, |
hpayer@chromium.org | 2f877ac | 2013-09-18 15:29:06 +0000 | [diff] [blame] | 4433 | Operand(FixedDoubleArray::kHeaderSize - kHeapObjectTag)); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4434 | __ add(scratch, scratch, |
| 4435 | Operand(ToRegister(instr->key()), LSL, shift_size)); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4436 | } |
| 4437 | |
| 4438 | if (instr->NeedsCanonicalization()) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4439 | // Force a canonical NaN. |
| 4440 | if (masm()->emit_debug_code()) { |
| 4441 | __ vmrs(ip); |
| 4442 | __ tst(ip, Operand(kVFPDefaultNaNModeControlBit)); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 4443 | __ Assert(ne, kDefaultNaNModeNotSet); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4444 | } |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4445 | __ VFPCanonicalizeNaN(double_scratch, value); |
| 4446 | __ vstr(double_scratch, scratch, |
| 4447 | instr->additional_index() << element_size_shift); |
| 4448 | } else { |
| 4449 | __ vstr(value, scratch, instr->additional_index() << element_size_shift); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4450 | } |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4451 | } |
| 4452 | |
| 4453 | |
| 4454 | void LCodeGen::DoStoreKeyedFixedArray(LStoreKeyed* instr) { |
| 4455 | Register value = ToRegister(instr->value()); |
| 4456 | Register elements = ToRegister(instr->elements()); |
| 4457 | Register key = instr->key()->IsRegister() ? ToRegister(instr->key()) |
| 4458 | : no_reg; |
| 4459 | Register scratch = scratch0(); |
| 4460 | Register store_base = scratch; |
| 4461 | int offset = 0; |
| 4462 | |
| 4463 | // Do the store. |
| 4464 | if (instr->key()->IsConstantOperand()) { |
| 4465 | ASSERT(!instr->hydrogen()->NeedsWriteBarrier()); |
| 4466 | LConstantOperand* const_operand = LConstantOperand::cast(instr->key()); |
| 4467 | offset = FixedArray::OffsetOfElementAt(ToInteger32(const_operand) + |
| 4468 | instr->additional_index()); |
| 4469 | store_base = elements; |
| 4470 | } else { |
| 4471 | // Even though the HLoadKeyed instruction forces the input |
| 4472 | // representation for the key to be an integer, the input gets replaced |
| 4473 | // during bound check elimination with the index argument to the bounds |
| 4474 | // check, which can be tagged, so that case must be handled here, too. |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 4475 | if (instr->hydrogen()->key()->representation().IsSmi()) { |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 4476 | __ add(scratch, elements, Operand::PointerOffsetFromSmiKey(key)); |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4477 | } else { |
| 4478 | __ add(scratch, elements, Operand(key, LSL, kPointerSizeLog2)); |
| 4479 | } |
| 4480 | offset = FixedArray::OffsetOfElementAt(instr->additional_index()); |
| 4481 | } |
| 4482 | __ str(value, FieldMemOperand(store_base, offset)); |
| 4483 | |
| 4484 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4485 | SmiCheck check_needed = |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 4486 | instr->hydrogen()->value()->IsHeapObject() |
| 4487 | ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4488 | // Compute address of modified element and store it into key register. |
| 4489 | __ add(key, store_base, Operand(offset - kHeapObjectTag)); |
| 4490 | __ RecordWrite(elements, |
| 4491 | key, |
| 4492 | value, |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 4493 | GetLinkRegisterState(), |
verwaest@chromium.org | e4ee6de | 2012-11-06 12:13:00 +0000 | [diff] [blame] | 4494 | kSaveFPRegs, |
| 4495 | EMIT_REMEMBERED_SET, |
| 4496 | check_needed); |
| 4497 | } |
| 4498 | } |
| 4499 | |
| 4500 | |
| 4501 | void LCodeGen::DoStoreKeyed(LStoreKeyed* instr) { |
| 4502 | // By cases: external, fast double |
| 4503 | if (instr->is_external()) { |
| 4504 | DoStoreKeyedExternalArray(instr); |
| 4505 | } else if (instr->hydrogen()->value()->representation().IsDouble()) { |
| 4506 | DoStoreKeyedFixedDoubleArray(instr); |
| 4507 | } else { |
| 4508 | DoStoreKeyedFixedArray(instr); |
| 4509 | } |
| 4510 | } |
| 4511 | |
| 4512 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4513 | void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4514 | ASSERT(ToRegister(instr->context()).is(cp)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4515 | ASSERT(ToRegister(instr->object()).is(r2)); |
| 4516 | ASSERT(ToRegister(instr->key()).is(r1)); |
| 4517 | ASSERT(ToRegister(instr->value()).is(r0)); |
| 4518 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4519 | Handle<Code> ic = (instr->strict_mode_flag() == kStrictMode) |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 4520 | ? isolate()->builtins()->KeyedStoreIC_Initialize_Strict() |
| 4521 | : isolate()->builtins()->KeyedStoreIC_Initialize(); |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 4522 | CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4523 | } |
| 4524 | |
| 4525 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4526 | void LCodeGen::DoTransitionElementsKind(LTransitionElementsKind* instr) { |
| 4527 | Register object_reg = ToRegister(instr->object()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4528 | Register scratch = scratch0(); |
| 4529 | |
| 4530 | Handle<Map> from_map = instr->original_map(); |
| 4531 | Handle<Map> to_map = instr->transitioned_map(); |
yangguo@chromium.org | 003650e | 2013-01-24 16:31:08 +0000 | [diff] [blame] | 4532 | ElementsKind from_kind = instr->from_kind(); |
| 4533 | ElementsKind to_kind = instr->to_kind(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4534 | |
| 4535 | Label not_applicable; |
| 4536 | __ ldr(scratch, FieldMemOperand(object_reg, HeapObject::kMapOffset)); |
| 4537 | __ cmp(scratch, Operand(from_map)); |
| 4538 | __ b(ne, ¬_applicable); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4539 | |
| 4540 | if (IsSimpleMapChangeTransition(from_kind, to_kind)) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4541 | Register new_map_reg = ToRegister(instr->new_map_temp()); |
| 4542 | __ mov(new_map_reg, Operand(to_map)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4543 | __ str(new_map_reg, FieldMemOperand(object_reg, HeapObject::kMapOffset)); |
| 4544 | // Write barrier. |
| 4545 | __ RecordWriteField(object_reg, HeapObject::kMapOffset, new_map_reg, |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 4546 | scratch, GetLinkRegisterState(), kDontSaveFPRegs); |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 4547 | } else { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4548 | ASSERT(ToRegister(instr->context()).is(cp)); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 4549 | PushSafepointRegistersScope scope( |
| 4550 | this, Safepoint::kWithRegistersAndDoubles); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4551 | __ Move(r0, object_reg); |
| 4552 | __ Move(r1, to_map); |
| 4553 | TransitionElementsKindStub stub(from_kind, to_kind); |
| 4554 | __ CallStub(&stub); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 4555 | RecordSafepointWithRegistersAndDoubles( |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4556 | instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4557 | } |
| 4558 | __ bind(¬_applicable); |
| 4559 | } |
| 4560 | |
| 4561 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4562 | void LCodeGen::DoTrapAllocationMemento(LTrapAllocationMemento* instr) { |
| 4563 | Register object = ToRegister(instr->object()); |
| 4564 | Register temp = ToRegister(instr->temp()); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 4565 | __ TestJSArrayForAllocationMemento(object, temp); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4566 | DeoptimizeIf(eq, instr->environment()); |
| 4567 | } |
| 4568 | |
| 4569 | |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 4570 | void LCodeGen::DoStringAdd(LStringAdd* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4571 | ASSERT(ToRegister(instr->context()).is(cp)); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 4572 | __ push(ToRegister(instr->left())); |
| 4573 | __ push(ToRegister(instr->right())); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 4574 | StringAddStub stub(instr->hydrogen()->flags()); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4575 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 4576 | } |
| 4577 | |
| 4578 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4579 | void LCodeGen::DoStringCharCodeAt(LStringCharCodeAt* instr) { |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4580 | class DeferredStringCharCodeAt V8_FINAL : public LDeferredCode { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4581 | public: |
| 4582 | DeferredStringCharCodeAt(LCodeGen* codegen, LStringCharCodeAt* instr) |
| 4583 | : LDeferredCode(codegen), instr_(instr) { } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4584 | virtual void Generate() V8_OVERRIDE { |
| 4585 | codegen()->DoDeferredStringCharCodeAt(instr_); |
| 4586 | } |
| 4587 | virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4588 | private: |
| 4589 | LStringCharCodeAt* instr_; |
| 4590 | }; |
| 4591 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4592 | DeferredStringCharCodeAt* deferred = |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4593 | new(zone()) DeferredStringCharCodeAt(this, instr); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4594 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4595 | StringCharLoadGenerator::Generate(masm(), |
| 4596 | ToRegister(instr->string()), |
| 4597 | ToRegister(instr->index()), |
| 4598 | ToRegister(instr->result()), |
| 4599 | deferred->entry()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4600 | __ bind(deferred->exit()); |
| 4601 | } |
| 4602 | |
| 4603 | |
| 4604 | void LCodeGen::DoDeferredStringCharCodeAt(LStringCharCodeAt* instr) { |
| 4605 | Register string = ToRegister(instr->string()); |
| 4606 | Register result = ToRegister(instr->result()); |
| 4607 | Register scratch = scratch0(); |
| 4608 | |
| 4609 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 4610 | // result register contain a valid pointer because it is already |
| 4611 | // contained in the register pointer map. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4612 | __ mov(result, Operand::Zero()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4613 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4614 | PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4615 | __ push(string); |
| 4616 | // Push the index as a smi. This is safe because of the checks in |
| 4617 | // DoStringCharCodeAt above. |
| 4618 | if (instr->index()->IsConstantOperand()) { |
| 4619 | int const_index = ToInteger32(LConstantOperand::cast(instr->index())); |
| 4620 | __ mov(scratch, Operand(Smi::FromInt(const_index))); |
| 4621 | __ push(scratch); |
| 4622 | } else { |
| 4623 | Register index = ToRegister(instr->index()); |
| 4624 | __ SmiTag(index); |
| 4625 | __ push(index); |
| 4626 | } |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4627 | CallRuntimeFromDeferred(Runtime::kStringCharCodeAt, 2, instr, |
| 4628 | instr->context()); |
svenpanne@chromium.org | c859c4f | 2012-10-15 11:51:39 +0000 | [diff] [blame] | 4629 | __ AssertSmi(r0); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4630 | __ SmiUntag(r0); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 4631 | __ StoreToSafepointRegisterSlot(r0, result); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4632 | } |
| 4633 | |
| 4634 | |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4635 | void LCodeGen::DoStringCharFromCode(LStringCharFromCode* instr) { |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4636 | class DeferredStringCharFromCode V8_FINAL : public LDeferredCode { |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4637 | public: |
| 4638 | DeferredStringCharFromCode(LCodeGen* codegen, LStringCharFromCode* instr) |
| 4639 | : LDeferredCode(codegen), instr_(instr) { } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4640 | virtual void Generate() V8_OVERRIDE { |
| 4641 | codegen()->DoDeferredStringCharFromCode(instr_); |
| 4642 | } |
| 4643 | virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4644 | private: |
| 4645 | LStringCharFromCode* instr_; |
| 4646 | }; |
| 4647 | |
| 4648 | DeferredStringCharFromCode* deferred = |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4649 | new(zone()) DeferredStringCharFromCode(this, instr); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4650 | |
| 4651 | ASSERT(instr->hydrogen()->value()->representation().IsInteger32()); |
| 4652 | Register char_code = ToRegister(instr->char_code()); |
| 4653 | Register result = ToRegister(instr->result()); |
| 4654 | ASSERT(!char_code.is(result)); |
| 4655 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4656 | __ cmp(char_code, Operand(String::kMaxOneByteCharCode)); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4657 | __ b(hi, deferred->entry()); |
| 4658 | __ LoadRoot(result, Heap::kSingleCharacterStringCacheRootIndex); |
| 4659 | __ add(result, result, Operand(char_code, LSL, kPointerSizeLog2)); |
| 4660 | __ ldr(result, FieldMemOperand(result, FixedArray::kHeaderSize)); |
| 4661 | __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); |
| 4662 | __ cmp(result, ip); |
| 4663 | __ b(eq, deferred->entry()); |
| 4664 | __ bind(deferred->exit()); |
| 4665 | } |
| 4666 | |
| 4667 | |
| 4668 | void LCodeGen::DoDeferredStringCharFromCode(LStringCharFromCode* instr) { |
| 4669 | Register char_code = ToRegister(instr->char_code()); |
| 4670 | Register result = ToRegister(instr->result()); |
| 4671 | |
| 4672 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 4673 | // result register contain a valid pointer because it is already |
| 4674 | // contained in the register pointer map. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4675 | __ mov(result, Operand::Zero()); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4676 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4677 | PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4678 | __ SmiTag(char_code); |
| 4679 | __ push(char_code); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4680 | CallRuntimeFromDeferred(Runtime::kCharFromCode, 1, instr, instr->context()); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4681 | __ StoreToSafepointRegisterSlot(r0, result); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 4682 | } |
| 4683 | |
| 4684 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4685 | void LCodeGen::DoInteger32ToDouble(LInteger32ToDouble* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4686 | LOperand* input = instr->value(); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 4687 | ASSERT(input->IsRegister() || input->IsStackSlot()); |
| 4688 | LOperand* output = instr->result(); |
| 4689 | ASSERT(output->IsDoubleRegister()); |
| 4690 | SwVfpRegister single_scratch = double_scratch0().low(); |
| 4691 | if (input->IsStackSlot()) { |
| 4692 | Register scratch = scratch0(); |
| 4693 | __ ldr(scratch, ToMemOperand(input)); |
| 4694 | __ vmov(single_scratch, scratch); |
| 4695 | } else { |
| 4696 | __ vmov(single_scratch, ToRegister(input)); |
| 4697 | } |
| 4698 | __ vcvt_f64_s32(ToDoubleRegister(output), single_scratch); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4699 | } |
| 4700 | |
| 4701 | |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 4702 | void LCodeGen::DoInteger32ToSmi(LInteger32ToSmi* instr) { |
| 4703 | LOperand* input = instr->value(); |
| 4704 | ASSERT(input->IsRegister()); |
| 4705 | LOperand* output = instr->result(); |
| 4706 | ASSERT(output->IsRegister()); |
| 4707 | __ SmiTag(ToRegister(output), ToRegister(input), SetCC); |
| 4708 | if (!instr->hydrogen()->value()->HasRange() || |
| 4709 | !instr->hydrogen()->value()->range()->IsInSmiRange()) { |
| 4710 | DeoptimizeIf(vs, instr->environment()); |
| 4711 | } |
| 4712 | } |
| 4713 | |
| 4714 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4715 | void LCodeGen::DoUint32ToDouble(LUint32ToDouble* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4716 | LOperand* input = instr->value(); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4717 | LOperand* output = instr->result(); |
| 4718 | |
| 4719 | SwVfpRegister flt_scratch = double_scratch0().low(); |
| 4720 | __ vmov(flt_scratch, ToRegister(input)); |
| 4721 | __ vcvt_f64_u32(ToDoubleRegister(output), flt_scratch); |
| 4722 | } |
| 4723 | |
| 4724 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4725 | void LCodeGen::DoNumberTagI(LNumberTagI* instr) { |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4726 | class DeferredNumberTagI V8_FINAL : public LDeferredCode { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4727 | public: |
| 4728 | DeferredNumberTagI(LCodeGen* codegen, LNumberTagI* instr) |
| 4729 | : LDeferredCode(codegen), instr_(instr) { } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4730 | virtual void Generate() V8_OVERRIDE { |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4731 | codegen()->DoDeferredNumberTagI(instr_, |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4732 | instr_->value(), |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4733 | SIGNED_INT32); |
| 4734 | } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4735 | virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4736 | private: |
| 4737 | LNumberTagI* instr_; |
| 4738 | }; |
| 4739 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4740 | Register src = ToRegister(instr->value()); |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4741 | Register dst = ToRegister(instr->result()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4742 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4743 | DeferredNumberTagI* deferred = new(zone()) DeferredNumberTagI(this, instr); |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4744 | __ SmiTag(dst, src, SetCC); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4745 | __ b(vs, deferred->entry()); |
| 4746 | __ bind(deferred->exit()); |
| 4747 | } |
| 4748 | |
| 4749 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4750 | void LCodeGen::DoNumberTagU(LNumberTagU* instr) { |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4751 | class DeferredNumberTagU V8_FINAL : public LDeferredCode { |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4752 | public: |
| 4753 | DeferredNumberTagU(LCodeGen* codegen, LNumberTagU* instr) |
| 4754 | : LDeferredCode(codegen), instr_(instr) { } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4755 | virtual void Generate() V8_OVERRIDE { |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4756 | codegen()->DoDeferredNumberTagI(instr_, |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4757 | instr_->value(), |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4758 | UNSIGNED_INT32); |
| 4759 | } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4760 | virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4761 | private: |
| 4762 | LNumberTagU* instr_; |
| 4763 | }; |
| 4764 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4765 | LOperand* input = instr->value(); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4766 | ASSERT(input->IsRegister() && input->Equals(instr->result())); |
| 4767 | Register reg = ToRegister(input); |
| 4768 | |
| 4769 | DeferredNumberTagU* deferred = new(zone()) DeferredNumberTagU(this, instr); |
| 4770 | __ cmp(reg, Operand(Smi::kMaxValue)); |
| 4771 | __ b(hi, deferred->entry()); |
| 4772 | __ SmiTag(reg, reg); |
| 4773 | __ bind(deferred->exit()); |
| 4774 | } |
| 4775 | |
| 4776 | |
| 4777 | void LCodeGen::DoDeferredNumberTagI(LInstruction* instr, |
| 4778 | LOperand* value, |
| 4779 | IntegerSignedness signedness) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4780 | Label slow; |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4781 | Register src = ToRegister(value); |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4782 | Register dst = ToRegister(instr->result()); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 4783 | LowDwVfpRegister dbl_scratch = double_scratch0(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4784 | |
| 4785 | // Preserve the value of all registers. |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4786 | PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4787 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4788 | Label done; |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4789 | if (signedness == SIGNED_INT32) { |
| 4790 | // There was overflow, so bits 30 and 31 of the original integer |
| 4791 | // disagree. Try to allocate a heap number in new space and store |
| 4792 | // the value in there. If that fails, call the runtime system. |
| 4793 | if (dst.is(src)) { |
| 4794 | __ SmiUntag(src, dst); |
| 4795 | __ eor(src, src, Operand(0x80000000)); |
| 4796 | } |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 4797 | __ vmov(dbl_scratch.low(), src); |
| 4798 | __ vcvt_f64_s32(dbl_scratch, dbl_scratch.low()); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4799 | } else { |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 4800 | __ vmov(dbl_scratch.low(), src); |
| 4801 | __ vcvt_f64_u32(dbl_scratch, dbl_scratch.low()); |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4802 | } |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 4803 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4804 | if (FLAG_inline_new) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4805 | __ LoadRoot(scratch0(), Heap::kHeapNumberMapRootIndex); |
| 4806 | __ AllocateHeapNumber(r5, r3, r4, scratch0(), &slow, DONT_TAG_RESULT); |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4807 | __ Move(dst, r5); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4808 | __ b(&done); |
| 4809 | } |
| 4810 | |
| 4811 | // Slow case: Call the runtime system to do the number allocation. |
| 4812 | __ bind(&slow); |
| 4813 | |
| 4814 | // TODO(3095996): Put a valid pointer value in the stack slot where the result |
| 4815 | // register is stored, as this register is in the pointer map, but contains an |
| 4816 | // integer value. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4817 | __ mov(ip, Operand::Zero()); |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4818 | __ StoreToSafepointRegisterSlot(ip, dst); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4819 | // NumberTagI and NumberTagD use the context from the frame, rather than |
| 4820 | // the environment's HContext or HInlinedContext value. |
| 4821 | // They only call Runtime::kAllocateHeapNumber. |
| 4822 | // The corresponding HChange instructions are added in a phase that does |
| 4823 | // not have easy access to the local context. |
| 4824 | __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 4825 | __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); |
| 4826 | RecordSafepointWithRegisters( |
| 4827 | instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4828 | __ Move(dst, r0); |
svenpanne@chromium.org | c859c4f | 2012-10-15 11:51:39 +0000 | [diff] [blame] | 4829 | __ sub(dst, dst, Operand(kHeapObjectTag)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4830 | |
| 4831 | // Done. Put the value in dbl_scratch into the value of the allocated heap |
| 4832 | // number. |
| 4833 | __ bind(&done); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4834 | __ vstr(dbl_scratch, dst, HeapNumber::kValueOffset); |
svenpanne@chromium.org | c859c4f | 2012-10-15 11:51:39 +0000 | [diff] [blame] | 4835 | __ add(dst, dst, Operand(kHeapObjectTag)); |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4836 | __ StoreToSafepointRegisterSlot(dst, dst); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4837 | } |
| 4838 | |
| 4839 | |
| 4840 | void LCodeGen::DoNumberTagD(LNumberTagD* instr) { |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4841 | class DeferredNumberTagD V8_FINAL : public LDeferredCode { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4842 | public: |
| 4843 | DeferredNumberTagD(LCodeGen* codegen, LNumberTagD* instr) |
| 4844 | : LDeferredCode(codegen), instr_(instr) { } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 4845 | virtual void Generate() V8_OVERRIDE { |
| 4846 | codegen()->DoDeferredNumberTagD(instr_); |
| 4847 | } |
| 4848 | virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4849 | private: |
| 4850 | LNumberTagD* instr_; |
| 4851 | }; |
| 4852 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4853 | DwVfpRegister input_reg = ToDoubleRegister(instr->value()); |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 4854 | Register scratch = scratch0(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4855 | Register reg = ToRegister(instr->result()); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4856 | Register temp1 = ToRegister(instr->temp()); |
| 4857 | Register temp2 = ToRegister(instr->temp2()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4858 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 4859 | DeferredNumberTagD* deferred = new(zone()) DeferredNumberTagD(this, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4860 | if (FLAG_inline_new) { |
| 4861 | __ LoadRoot(scratch, Heap::kHeapNumberMapRootIndex); |
svenpanne@chromium.org | c859c4f | 2012-10-15 11:51:39 +0000 | [diff] [blame] | 4862 | // We want the untagged address first for performance |
| 4863 | __ AllocateHeapNumber(reg, temp1, temp2, scratch, deferred->entry(), |
| 4864 | DONT_TAG_RESULT); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4865 | } else { |
| 4866 | __ jmp(deferred->entry()); |
| 4867 | } |
| 4868 | __ bind(deferred->exit()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4869 | __ vstr(input_reg, reg, HeapNumber::kValueOffset); |
svenpanne@chromium.org | c859c4f | 2012-10-15 11:51:39 +0000 | [diff] [blame] | 4870 | // Now that we have finished with the object's real address tag it |
| 4871 | __ add(reg, reg, Operand(kHeapObjectTag)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4872 | } |
| 4873 | |
| 4874 | |
| 4875 | void LCodeGen::DoDeferredNumberTagD(LNumberTagD* instr) { |
| 4876 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 4877 | // result register contain a valid pointer because it is already |
| 4878 | // contained in the register pointer map. |
| 4879 | Register reg = ToRegister(instr->result()); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4880 | __ mov(reg, Operand::Zero()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4881 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 4882 | PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 4883 | // NumberTagI and NumberTagD use the context from the frame, rather than |
| 4884 | // the environment's HContext or HInlinedContext value. |
| 4885 | // They only call Runtime::kAllocateHeapNumber. |
| 4886 | // The corresponding HChange instructions are added in a phase that does |
| 4887 | // not have easy access to the local context. |
| 4888 | __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 4889 | __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); |
| 4890 | RecordSafepointWithRegisters( |
| 4891 | instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); |
svenpanne@chromium.org | c859c4f | 2012-10-15 11:51:39 +0000 | [diff] [blame] | 4892 | __ sub(r0, r0, Operand(kHeapObjectTag)); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 4893 | __ StoreToSafepointRegisterSlot(r0, reg); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4894 | } |
| 4895 | |
| 4896 | |
| 4897 | void LCodeGen::DoSmiTag(LSmiTag* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4898 | ASSERT(!instr->hydrogen_value()->CheckFlag(HValue::kCanOverflow)); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4899 | __ SmiTag(ToRegister(instr->result()), ToRegister(instr->value())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4900 | } |
| 4901 | |
| 4902 | |
| 4903 | void LCodeGen::DoSmiUntag(LSmiUntag* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4904 | Register input = ToRegister(instr->value()); |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4905 | Register result = ToRegister(instr->result()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4906 | if (instr->needs_check()) { |
yangguo@chromium.org | 80c42ed | 2011-08-31 09:03:56 +0000 | [diff] [blame] | 4907 | STATIC_ASSERT(kHeapObjectTag == 1); |
ricow@chromium.org | dcebac0 | 2011-04-20 09:44:50 +0000 | [diff] [blame] | 4908 | // If the input is a HeapObject, SmiUntag will set the carry flag. |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4909 | __ SmiUntag(result, input, SetCC); |
ricow@chromium.org | dcebac0 | 2011-04-20 09:44:50 +0000 | [diff] [blame] | 4910 | DeoptimizeIf(cs, instr->environment()); |
| 4911 | } else { |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4912 | __ SmiUntag(result, input); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 4913 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4914 | } |
| 4915 | |
| 4916 | |
| 4917 | void LCodeGen::EmitNumberUntagD(Register input_reg, |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 4918 | DwVfpRegister result_reg, |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 4919 | bool can_convert_undefined_to_nan, |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 4920 | bool deoptimize_on_minus_zero, |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4921 | LEnvironment* env, |
| 4922 | NumberUntagDMode mode) { |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 4923 | Register scratch = scratch0(); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 4924 | SwVfpRegister flt_scratch = double_scratch0().low(); |
| 4925 | ASSERT(!result_reg.is(double_scratch0())); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4926 | Label convert, load_smi, done; |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 4927 | if (mode == NUMBER_CANDIDATE_IS_ANY_TAGGED) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4928 | // Smi check. |
| 4929 | __ UntagAndJumpIfSmi(scratch, input_reg, &load_smi); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4930 | // Heap number map check. |
| 4931 | __ ldr(scratch, FieldMemOperand(input_reg, HeapObject::kMapOffset)); |
| 4932 | __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); |
| 4933 | __ cmp(scratch, Operand(ip)); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4934 | if (can_convert_undefined_to_nan) { |
| 4935 | __ b(ne, &convert); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4936 | } else { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4937 | DeoptimizeIf(ne, env); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4938 | } |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4939 | // load heap number |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 4940 | __ vldr(result_reg, input_reg, HeapNumber::kValueOffset - kHeapObjectTag); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4941 | if (deoptimize_on_minus_zero) { |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 4942 | __ VmovLow(scratch, result_reg); |
| 4943 | __ cmp(scratch, Operand::Zero()); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4944 | __ b(ne, &done); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 4945 | __ VmovHigh(scratch, result_reg); |
| 4946 | __ cmp(scratch, Operand(HeapNumber::kSignMask)); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4947 | DeoptimizeIf(eq, env); |
| 4948 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4949 | __ jmp(&done); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4950 | if (can_convert_undefined_to_nan) { |
| 4951 | __ bind(&convert); |
| 4952 | // Convert undefined (and hole) to NaN. |
| 4953 | __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); |
| 4954 | __ cmp(input_reg, Operand(ip)); |
| 4955 | DeoptimizeIf(ne, env); |
| 4956 | __ LoadRoot(scratch, Heap::kNanValueRootIndex); |
| 4957 | __ vldr(result_reg, scratch, HeapNumber::kValueOffset - kHeapObjectTag); |
| 4958 | __ jmp(&done); |
| 4959 | } |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 4960 | } else { |
| 4961 | __ SmiUntag(scratch, input_reg); |
| 4962 | ASSERT(mode == NUMBER_CANDIDATE_IS_SMI); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4963 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4964 | // Smi to double register conversion |
| 4965 | __ bind(&load_smi); |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 4966 | // scratch: untagged value of input_reg |
| 4967 | __ vmov(flt_scratch, scratch); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4968 | __ vcvt_f64_s32(result_reg, flt_scratch); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4969 | __ bind(&done); |
| 4970 | } |
| 4971 | |
| 4972 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4973 | void LCodeGen::DoDeferredTaggedToI(LTaggedToI* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4974 | Register input_reg = ToRegister(instr->value()); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 4975 | Register scratch1 = scratch0(); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 4976 | Register scratch2 = ToRegister(instr->temp()); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 4977 | LowDwVfpRegister double_scratch = double_scratch0(); |
jkummerow@chromium.org | 1e8da74 | 2013-08-26 17:13:35 +0000 | [diff] [blame] | 4978 | DwVfpRegister double_scratch2 = ToDoubleRegister(instr->temp2()); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 4979 | |
| 4980 | ASSERT(!scratch1.is(input_reg) && !scratch1.is(scratch2)); |
| 4981 | ASSERT(!scratch2.is(input_reg) && !scratch2.is(scratch1)); |
| 4982 | |
| 4983 | Label done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4984 | |
ricow@chromium.org | dcebac0 | 2011-04-20 09:44:50 +0000 | [diff] [blame] | 4985 | // The input was optimistically untagged; revert it. |
| 4986 | // The carry flag is set when we reach this deferred code as we just executed |
| 4987 | // SmiUntag(heap_object, SetCC) |
yangguo@chromium.org | 80c42ed | 2011-08-31 09:03:56 +0000 | [diff] [blame] | 4988 | STATIC_ASSERT(kHeapObjectTag == 1); |
jkummerow@chromium.org | 1e8da74 | 2013-08-26 17:13:35 +0000 | [diff] [blame] | 4989 | __ adc(scratch2, input_reg, Operand(input_reg)); |
ricow@chromium.org | dcebac0 | 2011-04-20 09:44:50 +0000 | [diff] [blame] | 4990 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4991 | // Heap number map check. |
jkummerow@chromium.org | 1e8da74 | 2013-08-26 17:13:35 +0000 | [diff] [blame] | 4992 | __ ldr(scratch1, FieldMemOperand(scratch2, HeapObject::kMapOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4993 | __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 4994 | __ cmp(scratch1, Operand(ip)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4995 | |
| 4996 | if (instr->truncating()) { |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 4997 | // Performs a truncating conversion of a floating point number as used by |
| 4998 | // the JS bitwise operations. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4999 | Label heap_number; |
| 5000 | __ b(eq, &heap_number); |
| 5001 | // Check for undefined. Undefined is converted to zero for truncating |
| 5002 | // conversions. |
| 5003 | __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); |
jkummerow@chromium.org | 1e8da74 | 2013-08-26 17:13:35 +0000 | [diff] [blame] | 5004 | __ cmp(scratch2, Operand(ip)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5005 | DeoptimizeIf(ne, instr->environment()); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 5006 | __ mov(input_reg, Operand::Zero()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5007 | __ b(&done); |
| 5008 | |
| 5009 | __ bind(&heap_number); |
jkummerow@chromium.org | 1e8da74 | 2013-08-26 17:13:35 +0000 | [diff] [blame] | 5010 | __ TruncateHeapNumberToI(input_reg, scratch2); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5011 | } else { |
| 5012 | // Deoptimize if we don't have a heap number. |
| 5013 | DeoptimizeIf(ne, instr->environment()); |
| 5014 | |
jkummerow@chromium.org | 1e8da74 | 2013-08-26 17:13:35 +0000 | [diff] [blame] | 5015 | __ sub(ip, scratch2, Operand(kHeapObjectTag)); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 5016 | __ vldr(double_scratch2, ip, HeapNumber::kValueOffset); |
| 5017 | __ TryDoubleToInt32Exact(input_reg, double_scratch2, double_scratch); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 5018 | DeoptimizeIf(ne, instr->environment()); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 5019 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5020 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 5021 | __ cmp(input_reg, Operand::Zero()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5022 | __ b(ne, &done); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 5023 | __ VmovHigh(scratch1, double_scratch2); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 5024 | __ tst(scratch1, Operand(HeapNumber::kSignMask)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5025 | DeoptimizeIf(ne, instr->environment()); |
| 5026 | } |
| 5027 | } |
| 5028 | __ bind(&done); |
| 5029 | } |
| 5030 | |
| 5031 | |
| 5032 | void LCodeGen::DoTaggedToI(LTaggedToI* instr) { |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 5033 | class DeferredTaggedToI V8_FINAL : public LDeferredCode { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5034 | public: |
| 5035 | DeferredTaggedToI(LCodeGen* codegen, LTaggedToI* instr) |
| 5036 | : LDeferredCode(codegen), instr_(instr) { } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 5037 | virtual void Generate() V8_OVERRIDE { |
| 5038 | codegen()->DoDeferredTaggedToI(instr_); |
| 5039 | } |
| 5040 | virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5041 | private: |
| 5042 | LTaggedToI* instr_; |
| 5043 | }; |
| 5044 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 5045 | LOperand* input = instr->value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5046 | ASSERT(input->IsRegister()); |
| 5047 | ASSERT(input->Equals(instr->result())); |
| 5048 | |
| 5049 | Register input_reg = ToRegister(input); |
| 5050 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5051 | if (instr->hydrogen()->value()->representation().IsSmi()) { |
| 5052 | __ SmiUntag(input_reg); |
| 5053 | } else { |
| 5054 | DeferredTaggedToI* deferred = new(zone()) DeferredTaggedToI(this, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5055 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5056 | // Optimistically untag the input. |
| 5057 | // If the input is a HeapObject, SmiUntag will set the carry flag. |
| 5058 | __ SmiUntag(input_reg, SetCC); |
| 5059 | // Branch to deferred code if the input was tagged. |
| 5060 | // The deferred code will take care of restoring the tag. |
| 5061 | __ b(cs, deferred->entry()); |
| 5062 | __ bind(deferred->exit()); |
| 5063 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5064 | } |
| 5065 | |
| 5066 | |
| 5067 | void LCodeGen::DoNumberUntagD(LNumberUntagD* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 5068 | LOperand* input = instr->value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5069 | ASSERT(input->IsRegister()); |
| 5070 | LOperand* result = instr->result(); |
| 5071 | ASSERT(result->IsDoubleRegister()); |
| 5072 | |
| 5073 | Register input_reg = ToRegister(input); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5074 | DwVfpRegister result_reg = ToDoubleRegister(result); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5075 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5076 | HValue* value = instr->hydrogen()->value(); |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 5077 | NumberUntagDMode mode = value->representation().IsSmi() |
| 5078 | ? NUMBER_CANDIDATE_IS_SMI : NUMBER_CANDIDATE_IS_ANY_TAGGED; |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5079 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 5080 | EmitNumberUntagD(input_reg, result_reg, |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 5081 | instr->hydrogen()->can_convert_undefined_to_nan(), |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 5082 | instr->hydrogen()->deoptimize_on_minus_zero(), |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5083 | instr->environment(), |
| 5084 | mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5085 | } |
| 5086 | |
| 5087 | |
| 5088 | void LCodeGen::DoDoubleToI(LDoubleToI* instr) { |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 5089 | Register result_reg = ToRegister(instr->result()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 5090 | Register scratch1 = scratch0(); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 5091 | DwVfpRegister double_input = ToDoubleRegister(instr->value()); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 5092 | LowDwVfpRegister double_scratch = double_scratch0(); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 5093 | |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5094 | if (instr->truncating()) { |
jkummerow@chromium.org | 1e8da74 | 2013-08-26 17:13:35 +0000 | [diff] [blame] | 5095 | __ TruncateDoubleToI(result_reg, double_input); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5096 | } else { |
| 5097 | __ TryDoubleToInt32Exact(result_reg, double_input, double_scratch); |
| 5098 | // Deoptimize if the input wasn't a int32 (inside a double). |
| 5099 | DeoptimizeIf(ne, instr->environment()); |
| 5100 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 5101 | Label done; |
| 5102 | __ cmp(result_reg, Operand::Zero()); |
| 5103 | __ b(ne, &done); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 5104 | __ VmovHigh(scratch1, double_input); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5105 | __ tst(scratch1, Operand(HeapNumber::kSignMask)); |
| 5106 | DeoptimizeIf(ne, instr->environment()); |
| 5107 | __ bind(&done); |
| 5108 | } |
| 5109 | } |
| 5110 | } |
| 5111 | |
| 5112 | |
| 5113 | void LCodeGen::DoDoubleToSmi(LDoubleToSmi* instr) { |
| 5114 | Register result_reg = ToRegister(instr->result()); |
| 5115 | Register scratch1 = scratch0(); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5116 | DwVfpRegister double_input = ToDoubleRegister(instr->value()); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 5117 | LowDwVfpRegister double_scratch = double_scratch0(); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 5118 | |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 5119 | if (instr->truncating()) { |
jkummerow@chromium.org | 1e8da74 | 2013-08-26 17:13:35 +0000 | [diff] [blame] | 5120 | __ TruncateDoubleToI(result_reg, double_input); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 5121 | } else { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5122 | __ TryDoubleToInt32Exact(result_reg, double_input, double_scratch); |
| 5123 | // Deoptimize if the input wasn't a int32 (inside a double). |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 5124 | DeoptimizeIf(ne, instr->environment()); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5125 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 5126 | Label done; |
| 5127 | __ cmp(result_reg, Operand::Zero()); |
| 5128 | __ b(ne, &done); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 5129 | __ VmovHigh(scratch1, double_input); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5130 | __ tst(scratch1, Operand(HeapNumber::kSignMask)); |
| 5131 | DeoptimizeIf(ne, instr->environment()); |
| 5132 | __ bind(&done); |
| 5133 | } |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 5134 | } |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5135 | __ SmiTag(result_reg, SetCC); |
| 5136 | DeoptimizeIf(vs, instr->environment()); |
| 5137 | } |
| 5138 | |
| 5139 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5140 | void LCodeGen::DoCheckSmi(LCheckSmi* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 5141 | LOperand* input = instr->value(); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 5142 | __ SmiTst(ToRegister(input)); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 5143 | DeoptimizeIf(ne, instr->environment()); |
| 5144 | } |
| 5145 | |
| 5146 | |
| 5147 | void LCodeGen::DoCheckNonSmi(LCheckNonSmi* instr) { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 5148 | if (!instr->hydrogen()->value()->IsHeapObject()) { |
| 5149 | LOperand* input = instr->value(); |
| 5150 | __ SmiTst(ToRegister(input)); |
| 5151 | DeoptimizeIf(eq, instr->environment()); |
| 5152 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5153 | } |
| 5154 | |
| 5155 | |
| 5156 | void LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 5157 | Register input = ToRegister(instr->value()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5158 | Register scratch = scratch0(); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5159 | |
| 5160 | __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); |
| 5161 | __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset)); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5162 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5163 | if (instr->hydrogen()->is_interval_check()) { |
| 5164 | InstanceType first; |
| 5165 | InstanceType last; |
| 5166 | instr->hydrogen()->GetCheckInterval(&first, &last); |
| 5167 | |
| 5168 | __ cmp(scratch, Operand(first)); |
| 5169 | |
| 5170 | // If there is only one type in the interval check for equality. |
| 5171 | if (first == last) { |
| 5172 | DeoptimizeIf(ne, instr->environment()); |
| 5173 | } else { |
| 5174 | DeoptimizeIf(lo, instr->environment()); |
| 5175 | // Omit check for the last type. |
| 5176 | if (last != LAST_TYPE) { |
| 5177 | __ cmp(scratch, Operand(last)); |
| 5178 | DeoptimizeIf(hi, instr->environment()); |
| 5179 | } |
| 5180 | } |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5181 | } else { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 5182 | uint8_t mask; |
| 5183 | uint8_t tag; |
| 5184 | instr->hydrogen()->GetCheckMaskAndTag(&mask, &tag); |
| 5185 | |
| 5186 | if (IsPowerOf2(mask)) { |
| 5187 | ASSERT(tag == 0 || IsPowerOf2(tag)); |
| 5188 | __ tst(scratch, Operand(mask)); |
| 5189 | DeoptimizeIf(tag == 0 ? ne : eq, instr->environment()); |
| 5190 | } else { |
| 5191 | __ and_(scratch, scratch, Operand(mask)); |
| 5192 | __ cmp(scratch, Operand(tag)); |
| 5193 | DeoptimizeIf(ne, instr->environment()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5194 | } |
| 5195 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5196 | } |
| 5197 | |
| 5198 | |
mstarzinger@chromium.org | 1f410f9 | 2013-08-29 08:13:16 +0000 | [diff] [blame] | 5199 | void LCodeGen::DoCheckValue(LCheckValue* instr) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 5200 | Register reg = ToRegister(instr->value()); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5201 | Handle<HeapObject> object = instr->hydrogen()->object().handle(); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 5202 | AllowDeferredHandleDereference smi_check; |
mstarzinger@chromium.org | 1f410f9 | 2013-08-29 08:13:16 +0000 | [diff] [blame] | 5203 | if (isolate()->heap()->InNewSpace(*object)) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 5204 | Register reg = ToRegister(instr->value()); |
mstarzinger@chromium.org | 1f410f9 | 2013-08-29 08:13:16 +0000 | [diff] [blame] | 5205 | Handle<Cell> cell = isolate()->factory()->NewCell(object); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 5206 | __ mov(ip, Operand(Handle<Object>(cell))); |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 5207 | __ ldr(ip, FieldMemOperand(ip, Cell::kValueOffset)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 5208 | __ cmp(reg, ip); |
| 5209 | } else { |
mstarzinger@chromium.org | 1f410f9 | 2013-08-29 08:13:16 +0000 | [diff] [blame] | 5210 | __ cmp(reg, Operand(object)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 5211 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5212 | DeoptimizeIf(ne, instr->environment()); |
| 5213 | } |
| 5214 | |
| 5215 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 5216 | void LCodeGen::DoDeferredInstanceMigration(LCheckMaps* instr, Register object) { |
| 5217 | { |
| 5218 | PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); |
| 5219 | __ push(object); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 5220 | __ mov(cp, Operand::Zero()); |
| 5221 | __ CallRuntimeSaveDoubles(Runtime::kMigrateInstance); |
| 5222 | RecordSafepointWithRegisters( |
| 5223 | instr->pointer_map(), 1, Safepoint::kNoLazyDeopt); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 5224 | __ StoreToSafepointRegisterSlot(r0, scratch0()); |
| 5225 | } |
| 5226 | __ tst(scratch0(), Operand(kSmiTagMask)); |
| 5227 | DeoptimizeIf(eq, instr->environment()); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 5228 | } |
| 5229 | |
| 5230 | |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 5231 | void LCodeGen::DoCheckMaps(LCheckMaps* instr) { |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 5232 | class DeferredCheckMaps V8_FINAL : public LDeferredCode { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 5233 | public: |
| 5234 | DeferredCheckMaps(LCodeGen* codegen, LCheckMaps* instr, Register object) |
| 5235 | : LDeferredCode(codegen), instr_(instr), object_(object) { |
| 5236 | SetExit(check_maps()); |
| 5237 | } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 5238 | virtual void Generate() V8_OVERRIDE { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 5239 | codegen()->DoDeferredInstanceMigration(instr_, object_); |
| 5240 | } |
| 5241 | Label* check_maps() { return &check_maps_; } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 5242 | virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 5243 | private: |
| 5244 | LCheckMaps* instr_; |
| 5245 | Label check_maps_; |
| 5246 | Register object_; |
| 5247 | }; |
| 5248 | |
yangguo@chromium.org | c73d55b | 2013-07-24 08:18:28 +0000 | [diff] [blame] | 5249 | if (instr->hydrogen()->CanOmitMapChecks()) return; |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5250 | Register map_reg = scratch0(); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 5251 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 5252 | LOperand* input = instr->value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5253 | ASSERT(input->IsRegister()); |
| 5254 | Register reg = ToRegister(input); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 5255 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5256 | __ ldr(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset)); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 5257 | |
| 5258 | DeferredCheckMaps* deferred = NULL; |
| 5259 | if (instr->hydrogen()->has_migration_target()) { |
| 5260 | deferred = new(zone()) DeferredCheckMaps(this, instr, reg); |
| 5261 | __ bind(deferred->check_maps()); |
| 5262 | } |
| 5263 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5264 | UniqueSet<Map> map_set = instr->hydrogen()->map_set(); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 5265 | Label success; |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5266 | for (int i = 0; i < map_set.size() - 1; i++) { |
| 5267 | Handle<Map> map = map_set.at(i).handle(); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 5268 | __ CompareMap(map_reg, map, &success); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 5269 | __ b(eq, &success); |
| 5270 | } |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 5271 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5272 | Handle<Map> map = map_set.at(map_set.size() - 1).handle(); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 5273 | __ CompareMap(map_reg, map, &success); |
| 5274 | if (instr->hydrogen()->has_migration_target()) { |
| 5275 | __ b(ne, deferred->entry()); |
| 5276 | } else { |
| 5277 | DeoptimizeIf(ne, instr->environment()); |
| 5278 | } |
| 5279 | |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 5280 | __ bind(&success); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5281 | } |
| 5282 | |
| 5283 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5284 | void LCodeGen::DoClampDToUint8(LClampDToUint8* instr) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5285 | DwVfpRegister value_reg = ToDoubleRegister(instr->unclamped()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5286 | Register result_reg = ToRegister(instr->result()); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 5287 | __ ClampDoubleToUint8(result_reg, value_reg, double_scratch0()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5288 | } |
| 5289 | |
| 5290 | |
| 5291 | void LCodeGen::DoClampIToUint8(LClampIToUint8* instr) { |
| 5292 | Register unclamped_reg = ToRegister(instr->unclamped()); |
| 5293 | Register result_reg = ToRegister(instr->result()); |
| 5294 | __ ClampUint8(result_reg, unclamped_reg); |
| 5295 | } |
| 5296 | |
| 5297 | |
| 5298 | void LCodeGen::DoClampTToUint8(LClampTToUint8* instr) { |
| 5299 | Register scratch = scratch0(); |
| 5300 | Register input_reg = ToRegister(instr->unclamped()); |
| 5301 | Register result_reg = ToRegister(instr->result()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5302 | DwVfpRegister temp_reg = ToDoubleRegister(instr->temp()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5303 | Label is_smi, done, heap_number; |
| 5304 | |
| 5305 | // Both smi and heap number cases are handled. |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 5306 | __ UntagAndJumpIfSmi(result_reg, input_reg, &is_smi); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5307 | |
| 5308 | // Check for heap number |
| 5309 | __ ldr(scratch, FieldMemOperand(input_reg, HeapObject::kMapOffset)); |
| 5310 | __ cmp(scratch, Operand(factory()->heap_number_map())); |
| 5311 | __ b(eq, &heap_number); |
| 5312 | |
| 5313 | // Check for undefined. Undefined is converted to zero for clamping |
| 5314 | // conversions. |
| 5315 | __ cmp(input_reg, Operand(factory()->undefined_value())); |
| 5316 | DeoptimizeIf(ne, instr->environment()); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 5317 | __ mov(result_reg, Operand::Zero()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5318 | __ jmp(&done); |
| 5319 | |
| 5320 | // Heap number |
| 5321 | __ bind(&heap_number); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 5322 | __ vldr(temp_reg, FieldMemOperand(input_reg, HeapNumber::kValueOffset)); |
| 5323 | __ ClampDoubleToUint8(result_reg, temp_reg, double_scratch0()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5324 | __ jmp(&done); |
| 5325 | |
| 5326 | // smi |
| 5327 | __ bind(&is_smi); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 5328 | __ ClampUint8(result_reg, result_reg); |
| 5329 | |
| 5330 | __ bind(&done); |
| 5331 | } |
| 5332 | |
| 5333 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5334 | void LCodeGen::DoAllocate(LAllocate* instr) { |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 5335 | class DeferredAllocate V8_FINAL : public LDeferredCode { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5336 | public: |
| 5337 | DeferredAllocate(LCodeGen* codegen, LAllocate* instr) |
| 5338 | : LDeferredCode(codegen), instr_(instr) { } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 5339 | virtual void Generate() V8_OVERRIDE { |
| 5340 | codegen()->DoDeferredAllocate(instr_); |
| 5341 | } |
| 5342 | virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5343 | private: |
| 5344 | LAllocate* instr_; |
| 5345 | }; |
| 5346 | |
| 5347 | DeferredAllocate* deferred = |
| 5348 | new(zone()) DeferredAllocate(this, instr); |
| 5349 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5350 | Register result = ToRegister(instr->result()); |
| 5351 | Register scratch = ToRegister(instr->temp1()); |
| 5352 | Register scratch2 = ToRegister(instr->temp2()); |
| 5353 | |
mstarzinger@chromium.org | 71fc346 | 2013-02-27 09:34:27 +0000 | [diff] [blame] | 5354 | // Allocate memory for the object. |
| 5355 | AllocationFlags flags = TAG_OBJECT; |
| 5356 | if (instr->hydrogen()->MustAllocateDoubleAligned()) { |
| 5357 | flags = static_cast<AllocationFlags>(flags | DOUBLE_ALIGNMENT); |
| 5358 | } |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 5359 | if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { |
| 5360 | ASSERT(!instr->hydrogen()->IsOldDataSpaceAllocation()); |
| 5361 | ASSERT(!instr->hydrogen()->IsNewSpaceAllocation()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5362 | flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_POINTER_SPACE); |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 5363 | } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { |
| 5364 | ASSERT(!instr->hydrogen()->IsNewSpaceAllocation()); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5365 | flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_DATA_SPACE); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5366 | } |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 5367 | |
mstarzinger@chromium.org | 71fc346 | 2013-02-27 09:34:27 +0000 | [diff] [blame] | 5368 | if (instr->size()->IsConstantOperand()) { |
| 5369 | int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 5370 | __ Allocate(size, result, scratch, scratch2, deferred->entry(), flags); |
mstarzinger@chromium.org | 71fc346 | 2013-02-27 09:34:27 +0000 | [diff] [blame] | 5371 | } else { |
| 5372 | Register size = ToRegister(instr->size()); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 5373 | __ Allocate(size, |
| 5374 | result, |
| 5375 | scratch, |
| 5376 | scratch2, |
| 5377 | deferred->entry(), |
| 5378 | flags); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5379 | } |
| 5380 | |
| 5381 | __ bind(deferred->exit()); |
yangguo@chromium.org | c73d55b | 2013-07-24 08:18:28 +0000 | [diff] [blame] | 5382 | |
| 5383 | if (instr->hydrogen()->MustPrefillWithFiller()) { |
| 5384 | if (instr->size()->IsConstantOperand()) { |
| 5385 | int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); |
| 5386 | __ mov(scratch, Operand(size)); |
| 5387 | } else { |
| 5388 | scratch = ToRegister(instr->size()); |
| 5389 | } |
| 5390 | __ sub(scratch, scratch, Operand(kPointerSize)); |
| 5391 | __ sub(result, result, Operand(kHeapObjectTag)); |
| 5392 | Label loop; |
| 5393 | __ bind(&loop); |
| 5394 | __ mov(scratch2, Operand(isolate()->factory()->one_pointer_filler_map())); |
| 5395 | __ str(scratch2, MemOperand(result, scratch)); |
| 5396 | __ sub(scratch, scratch, Operand(kPointerSize)); |
| 5397 | __ cmp(scratch, Operand(0)); |
| 5398 | __ b(ge, &loop); |
| 5399 | __ add(result, result, Operand(kHeapObjectTag)); |
| 5400 | } |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5401 | } |
| 5402 | |
| 5403 | |
| 5404 | void LCodeGen::DoDeferredAllocate(LAllocate* instr) { |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5405 | Register result = ToRegister(instr->result()); |
| 5406 | |
| 5407 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 5408 | // result register contain a valid pointer because it is already |
| 5409 | // contained in the register pointer map. |
| 5410 | __ mov(result, Operand(Smi::FromInt(0))); |
| 5411 | |
| 5412 | PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 5413 | if (instr->size()->IsRegister()) { |
| 5414 | Register size = ToRegister(instr->size()); |
| 5415 | ASSERT(!size.is(result)); |
| 5416 | __ SmiTag(size); |
| 5417 | __ push(size); |
| 5418 | } else { |
| 5419 | int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); |
| 5420 | __ Push(Smi::FromInt(size)); |
| 5421 | } |
| 5422 | |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 5423 | if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { |
| 5424 | ASSERT(!instr->hydrogen()->IsOldDataSpaceAllocation()); |
| 5425 | ASSERT(!instr->hydrogen()->IsNewSpaceAllocation()); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 5426 | CallRuntimeFromDeferred(Runtime::kAllocateInOldPointerSpace, 1, instr, |
| 5427 | instr->context()); |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 5428 | } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { |
| 5429 | ASSERT(!instr->hydrogen()->IsNewSpaceAllocation()); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 5430 | CallRuntimeFromDeferred(Runtime::kAllocateInOldDataSpace, 1, instr, |
| 5431 | instr->context()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5432 | } else { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 5433 | CallRuntimeFromDeferred(Runtime::kAllocateInNewSpace, 1, instr, |
| 5434 | instr->context()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5435 | } |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5436 | __ StoreToSafepointRegisterSlot(r0, result); |
| 5437 | } |
| 5438 | |
| 5439 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5440 | void LCodeGen::DoToFastProperties(LToFastProperties* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 5441 | ASSERT(ToRegister(instr->value()).is(r0)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5442 | __ push(r0); |
| 5443 | CallRuntime(Runtime::kToFastProperties, 1, instr); |
| 5444 | } |
| 5445 | |
| 5446 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5447 | void LCodeGen::DoRegExpLiteral(LRegExpLiteral* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 5448 | ASSERT(ToRegister(instr->context()).is(cp)); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5449 | Label materialized; |
| 5450 | // Registers will be used as follows: |
machenbach@chromium.org | 3d079fe | 2013-09-25 08:19:55 +0000 | [diff] [blame] | 5451 | // r6 = literals array. |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5452 | // r1 = regexp literal. |
| 5453 | // r0 = regexp literal clone. |
machenbach@chromium.org | 3d079fe | 2013-09-25 08:19:55 +0000 | [diff] [blame] | 5454 | // r2-5 are used as temporaries. |
yangguo@chromium.org | 9c741c8 | 2012-06-28 15:04:22 +0000 | [diff] [blame] | 5455 | int literal_offset = |
| 5456 | FixedArray::OffsetOfElementAt(instr->hydrogen()->literal_index()); |
machenbach@chromium.org | 3d079fe | 2013-09-25 08:19:55 +0000 | [diff] [blame] | 5457 | __ LoadHeapObject(r6, instr->hydrogen()->literals()); |
| 5458 | __ ldr(r1, FieldMemOperand(r6, literal_offset)); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5459 | __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); |
| 5460 | __ cmp(r1, ip); |
| 5461 | __ b(ne, &materialized); |
| 5462 | |
| 5463 | // Create regexp literal using runtime function |
| 5464 | // Result will be in r0. |
machenbach@chromium.org | 3d079fe | 2013-09-25 08:19:55 +0000 | [diff] [blame] | 5465 | __ mov(r5, Operand(Smi::FromInt(instr->hydrogen()->literal_index()))); |
| 5466 | __ mov(r4, Operand(instr->hydrogen()->pattern())); |
| 5467 | __ mov(r3, Operand(instr->hydrogen()->flags())); |
| 5468 | __ Push(r6, r5, r4, r3); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5469 | CallRuntime(Runtime::kMaterializeRegExpLiteral, 4, instr); |
| 5470 | __ mov(r1, r0); |
| 5471 | |
| 5472 | __ bind(&materialized); |
| 5473 | int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize; |
| 5474 | Label allocated, runtime_allocate; |
| 5475 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 5476 | __ Allocate(size, r0, r2, r3, &runtime_allocate, TAG_OBJECT); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5477 | __ jmp(&allocated); |
| 5478 | |
| 5479 | __ bind(&runtime_allocate); |
| 5480 | __ mov(r0, Operand(Smi::FromInt(size))); |
| 5481 | __ Push(r1, r0); |
| 5482 | CallRuntime(Runtime::kAllocateInNewSpace, 1, instr); |
| 5483 | __ pop(r1); |
| 5484 | |
| 5485 | __ bind(&allocated); |
| 5486 | // Copy the content into the newly allocated memory. |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 5487 | __ CopyFields(r0, r1, double_scratch0(), size / kPointerSize); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5488 | } |
| 5489 | |
| 5490 | |
| 5491 | void LCodeGen::DoFunctionLiteral(LFunctionLiteral* instr) { |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 5492 | ASSERT(ToRegister(instr->context()).is(cp)); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5493 | // Use the fast case closure allocation code that allocates in new |
| 5494 | // space for nested functions that don't need literals cloning. |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 5495 | bool pretenure = instr->hydrogen()->pretenure(); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 5496 | if (!pretenure && instr->hydrogen()->has_no_literals()) { |
| 5497 | FastNewClosureStub stub(instr->hydrogen()->language_mode(), |
| 5498 | instr->hydrogen()->is_generator()); |
verwaest@chromium.org | 662436e | 2013-08-28 08:41:27 +0000 | [diff] [blame] | 5499 | __ mov(r2, Operand(instr->hydrogen()->shared_info())); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 5500 | CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5501 | } else { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 5502 | __ mov(r2, Operand(instr->hydrogen()->shared_info())); |
| 5503 | __ mov(r1, Operand(pretenure ? factory()->true_value() |
| 5504 | : factory()->false_value())); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5505 | __ Push(cp, r2, r1); |
| 5506 | CallRuntime(Runtime::kNewClosure, 3, instr); |
| 5507 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5508 | } |
| 5509 | |
| 5510 | |
| 5511 | void LCodeGen::DoTypeof(LTypeof* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 5512 | Register input = ToRegister(instr->value()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 5513 | __ push(input); |
| 5514 | CallRuntime(Runtime::kTypeof, 1, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5515 | } |
| 5516 | |
| 5517 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5518 | void LCodeGen::DoTypeofIsAndBranch(LTypeofIsAndBranch* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 5519 | Register input = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5520 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 5521 | Condition final_branch_condition = EmitTypeofIs(instr->TrueLabel(chunk_), |
| 5522 | instr->FalseLabel(chunk_), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5523 | input, |
| 5524 | instr->type_literal()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 5525 | if (final_branch_condition != kNoCondition) { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 5526 | EmitBranch(instr, final_branch_condition); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 5527 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5528 | } |
| 5529 | |
| 5530 | |
| 5531 | Condition LCodeGen::EmitTypeofIs(Label* true_label, |
| 5532 | Label* false_label, |
| 5533 | Register input, |
| 5534 | Handle<String> type_name) { |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 5535 | Condition final_branch_condition = kNoCondition; |
lrn@chromium.org | 5d00b60 | 2011-01-05 09:51:43 +0000 | [diff] [blame] | 5536 | Register scratch = scratch0(); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 5537 | if (type_name->Equals(heap()->number_string())) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 5538 | __ JumpIfSmi(input, true_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5539 | __ ldr(input, FieldMemOperand(input, HeapObject::kMapOffset)); |
| 5540 | __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); |
| 5541 | __ cmp(input, Operand(ip)); |
| 5542 | final_branch_condition = eq; |
| 5543 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 5544 | } else if (type_name->Equals(heap()->string_string())) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 5545 | __ JumpIfSmi(input, false_label); |
| 5546 | __ CompareObjectType(input, input, scratch, FIRST_NONSTRING_TYPE); |
| 5547 | __ b(ge, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5548 | __ ldrb(ip, FieldMemOperand(input, Map::kBitFieldOffset)); |
| 5549 | __ tst(ip, Operand(1 << Map::kIsUndetectable)); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 5550 | final_branch_condition = eq; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5551 | |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 5552 | } else if (type_name->Equals(heap()->symbol_string())) { |
| 5553 | __ JumpIfSmi(input, false_label); |
| 5554 | __ CompareObjectType(input, input, scratch, SYMBOL_TYPE); |
| 5555 | final_branch_condition = eq; |
| 5556 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 5557 | } else if (type_name->Equals(heap()->boolean_string())) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 5558 | __ CompareRoot(input, Heap::kTrueValueRootIndex); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5559 | __ b(eq, true_label); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 5560 | __ CompareRoot(input, Heap::kFalseValueRootIndex); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5561 | final_branch_condition = eq; |
| 5562 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 5563 | } else if (FLAG_harmony_typeof && type_name->Equals(heap()->null_string())) { |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 5564 | __ CompareRoot(input, Heap::kNullValueRootIndex); |
| 5565 | final_branch_condition = eq; |
| 5566 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 5567 | } else if (type_name->Equals(heap()->undefined_string())) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 5568 | __ CompareRoot(input, Heap::kUndefinedValueRootIndex); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5569 | __ b(eq, true_label); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 5570 | __ JumpIfSmi(input, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5571 | // Check for undetectable objects => true. |
| 5572 | __ ldr(input, FieldMemOperand(input, HeapObject::kMapOffset)); |
| 5573 | __ ldrb(ip, FieldMemOperand(input, Map::kBitFieldOffset)); |
| 5574 | __ tst(ip, Operand(1 << Map::kIsUndetectable)); |
| 5575 | final_branch_condition = ne; |
| 5576 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 5577 | } else if (type_name->Equals(heap()->function_string())) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5578 | STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 5579 | __ JumpIfSmi(input, false_label); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5580 | __ CompareObjectType(input, scratch, input, JS_FUNCTION_TYPE); |
| 5581 | __ b(eq, true_label); |
| 5582 | __ cmp(input, Operand(JS_FUNCTION_PROXY_TYPE)); |
| 5583 | final_branch_condition = eq; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5584 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 5585 | } else if (type_name->Equals(heap()->object_string())) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 5586 | __ JumpIfSmi(input, false_label); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 5587 | if (!FLAG_harmony_typeof) { |
| 5588 | __ CompareRoot(input, Heap::kNullValueRootIndex); |
| 5589 | __ b(eq, true_label); |
| 5590 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 5591 | __ CompareObjectType(input, input, scratch, |
| 5592 | FIRST_NONCALLABLE_SPEC_OBJECT_TYPE); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 5593 | __ b(lt, false_label); |
| 5594 | __ CompareInstanceType(input, scratch, LAST_NONCALLABLE_SPEC_OBJECT_TYPE); |
| 5595 | __ b(gt, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5596 | // Check for undetectable objects => false. |
| 5597 | __ ldrb(ip, FieldMemOperand(input, Map::kBitFieldOffset)); |
| 5598 | __ tst(ip, Operand(1 << Map::kIsUndetectable)); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 5599 | final_branch_condition = eq; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5600 | |
| 5601 | } else { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5602 | __ b(false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5603 | } |
| 5604 | |
| 5605 | return final_branch_condition; |
| 5606 | } |
| 5607 | |
| 5608 | |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 5609 | void LCodeGen::DoIsConstructCallAndBranch(LIsConstructCallAndBranch* instr) { |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 5610 | Register temp1 = ToRegister(instr->temp()); |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 5611 | |
| 5612 | EmitIsConstructCall(temp1, scratch0()); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 5613 | EmitBranch(instr, eq); |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 5614 | } |
| 5615 | |
| 5616 | |
| 5617 | void LCodeGen::EmitIsConstructCall(Register temp1, Register temp2) { |
| 5618 | ASSERT(!temp1.is(temp2)); |
| 5619 | // Get the frame pointer for the calling frame. |
| 5620 | __ ldr(temp1, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); |
| 5621 | |
| 5622 | // Skip the arguments adaptor frame if it exists. |
| 5623 | Label check_frame_marker; |
| 5624 | __ ldr(temp2, MemOperand(temp1, StandardFrameConstants::kContextOffset)); |
| 5625 | __ cmp(temp2, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 5626 | __ b(ne, &check_frame_marker); |
| 5627 | __ ldr(temp1, MemOperand(temp1, StandardFrameConstants::kCallerFPOffset)); |
| 5628 | |
| 5629 | // Check the marker in the calling frame. |
| 5630 | __ bind(&check_frame_marker); |
| 5631 | __ ldr(temp1, MemOperand(temp1, StandardFrameConstants::kMarkerOffset)); |
| 5632 | __ cmp(temp1, Operand(Smi::FromInt(StackFrame::CONSTRUCT))); |
| 5633 | } |
| 5634 | |
| 5635 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5636 | void LCodeGen::EnsureSpaceForLazyDeopt() { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 5637 | if (info()->IsStub()) return; |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5638 | // Ensure that we have enough space after the previous lazy-bailout |
| 5639 | // instruction for patching the code here. |
| 5640 | int current_pc = masm()->pc_offset(); |
| 5641 | int patch_size = Deoptimizer::patch_size(); |
| 5642 | if (current_pc < last_lazy_deopt_pc_ + patch_size) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 5643 | // Block literal pool emission for duration of padding. |
| 5644 | Assembler::BlockConstPoolScope block_const_pool(masm()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5645 | int padding_size = last_lazy_deopt_pc_ + patch_size - current_pc; |
| 5646 | ASSERT_EQ(0, padding_size % Assembler::kInstrSize); |
| 5647 | while (padding_size > 0) { |
| 5648 | __ nop(); |
| 5649 | padding_size -= Assembler::kInstrSize; |
| 5650 | } |
| 5651 | } |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5652 | } |
| 5653 | |
| 5654 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5655 | void LCodeGen::DoLazyBailout(LLazyBailout* instr) { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5656 | EnsureSpaceForLazyDeopt(); |
ulan@chromium.org | 6fe0fda | 2013-07-23 13:34:19 +0000 | [diff] [blame] | 5657 | last_lazy_deopt_pc_ = masm()->pc_offset(); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5658 | ASSERT(instr->HasEnvironment()); |
| 5659 | LEnvironment* env = instr->environment(); |
| 5660 | RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
| 5661 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5662 | } |
| 5663 | |
| 5664 | |
| 5665 | void LCodeGen::DoDeoptimize(LDeoptimize* instr) { |
yangguo@chromium.org | c73d55b | 2013-07-24 08:18:28 +0000 | [diff] [blame] | 5666 | Deoptimizer::BailoutType type = instr->hydrogen()->type(); |
| 5667 | // TODO(danno): Stubs expect all deopts to be lazy for historical reasons (the |
| 5668 | // needed return address), even though the implementation of LAZY and EAGER is |
| 5669 | // now identical. When LAZY is eventually completely folded into EAGER, remove |
| 5670 | // the special case below. |
| 5671 | if (info()->IsStub() && type == Deoptimizer::EAGER) { |
| 5672 | type = Deoptimizer::LAZY; |
danno@chromium.org | aefd607 | 2013-05-14 14:11:47 +0000 | [diff] [blame] | 5673 | } |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 5674 | |
| 5675 | Comment(";;; deoptimize: %s", instr->hydrogen()->reason()); |
yangguo@chromium.org | c73d55b | 2013-07-24 08:18:28 +0000 | [diff] [blame] | 5676 | DeoptimizeIf(al, instr->environment(), type); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5677 | } |
| 5678 | |
| 5679 | |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 5680 | void LCodeGen::DoDummyUse(LDummyUse* instr) { |
| 5681 | // Nothing to see here, move on! |
| 5682 | } |
| 5683 | |
| 5684 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 5685 | void LCodeGen::DoDeferredStackCheck(LStackCheck* instr) { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5686 | PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 5687 | LoadContextFromDeferred(instr->context()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5688 | __ CallRuntimeSaveDoubles(Runtime::kStackGuard); |
| 5689 | RecordSafepointWithLazyDeopt( |
| 5690 | instr, RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); |
| 5691 | ASSERT(instr->HasEnvironment()); |
| 5692 | LEnvironment* env = instr->environment(); |
| 5693 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 5694 | } |
| 5695 | |
| 5696 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5697 | void LCodeGen::DoStackCheck(LStackCheck* instr) { |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 5698 | class DeferredStackCheck V8_FINAL : public LDeferredCode { |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 5699 | public: |
| 5700 | DeferredStackCheck(LCodeGen* codegen, LStackCheck* instr) |
| 5701 | : LDeferredCode(codegen), instr_(instr) { } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 5702 | virtual void Generate() V8_OVERRIDE { |
| 5703 | codegen()->DoDeferredStackCheck(instr_); |
| 5704 | } |
| 5705 | virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 5706 | private: |
| 5707 | LStackCheck* instr_; |
| 5708 | }; |
| 5709 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5710 | ASSERT(instr->HasEnvironment()); |
| 5711 | LEnvironment* env = instr->environment(); |
| 5712 | // There is no LLazyBailout instruction for stack-checks. We have to |
| 5713 | // prepare for lazy deoptimization explicitly here. |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 5714 | if (instr->hydrogen()->is_function_entry()) { |
| 5715 | // Perform stack overflow check. |
| 5716 | Label done; |
| 5717 | __ LoadRoot(ip, Heap::kStackLimitRootIndex); |
| 5718 | __ cmp(sp, Operand(ip)); |
| 5719 | __ b(hs, &done); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 5720 | PredictableCodeSizeScope predictable(masm_, 2 * Assembler::kInstrSize); |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 5721 | ASSERT(instr->context()->IsRegister()); |
| 5722 | ASSERT(ToRegister(instr->context()).is(cp)); |
jkummerow@chromium.org | dc94e19 | 2013-08-30 11:35:42 +0000 | [diff] [blame] | 5723 | CallCode(isolate()->builtins()->StackCheck(), |
jkummerow@chromium.org | c366976 | 2013-09-30 13:42:25 +0000 | [diff] [blame^] | 5724 | RelocInfo::CODE_TARGET, |
| 5725 | instr); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5726 | EnsureSpaceForLazyDeopt(); |
ulan@chromium.org | 6fe0fda | 2013-07-23 13:34:19 +0000 | [diff] [blame] | 5727 | last_lazy_deopt_pc_ = masm()->pc_offset(); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 5728 | __ bind(&done); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5729 | RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
| 5730 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 5731 | } else { |
| 5732 | ASSERT(instr->hydrogen()->is_backwards_branch()); |
| 5733 | // Perform stack overflow check if this goto needs it before jumping. |
| 5734 | DeferredStackCheck* deferred_stack_check = |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 5735 | new(zone()) DeferredStackCheck(this, instr); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 5736 | __ LoadRoot(ip, Heap::kStackLimitRootIndex); |
| 5737 | __ cmp(sp, Operand(ip)); |
| 5738 | __ b(lo, deferred_stack_check->entry()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5739 | EnsureSpaceForLazyDeopt(); |
ulan@chromium.org | 6fe0fda | 2013-07-23 13:34:19 +0000 | [diff] [blame] | 5740 | last_lazy_deopt_pc_ = masm()->pc_offset(); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 5741 | __ bind(instr->done_label()); |
| 5742 | deferred_stack_check->SetExit(instr->done_label()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5743 | RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
| 5744 | // Don't record a deoptimization index for the safepoint here. |
| 5745 | // This will be done explicitly when emitting call and the safepoint in |
| 5746 | // the deferred code. |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 5747 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5748 | } |
| 5749 | |
| 5750 | |
| 5751 | void LCodeGen::DoOsrEntry(LOsrEntry* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 5752 | // This is a pseudo-instruction that ensures that the environment here is |
| 5753 | // properly registered for deoptimization and records the assembler's PC |
| 5754 | // offset. |
| 5755 | LEnvironment* environment = instr->environment(); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 5756 | |
| 5757 | // If the environment were already registered, we would have no way of |
| 5758 | // backpatching it with the spill slot operands. |
| 5759 | ASSERT(!environment->HasBeenRegistered()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 5760 | RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 5761 | |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 5762 | GenerateOsrPrologue(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5763 | } |
| 5764 | |
| 5765 | |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 5766 | void LCodeGen::DoForInPrepareMap(LForInPrepareMap* instr) { |
| 5767 | __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); |
| 5768 | __ cmp(r0, ip); |
| 5769 | DeoptimizeIf(eq, instr->environment()); |
| 5770 | |
| 5771 | Register null_value = r5; |
| 5772 | __ LoadRoot(null_value, Heap::kNullValueRootIndex); |
| 5773 | __ cmp(r0, null_value); |
| 5774 | DeoptimizeIf(eq, instr->environment()); |
| 5775 | |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 5776 | __ SmiTst(r0); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 5777 | DeoptimizeIf(eq, instr->environment()); |
| 5778 | |
| 5779 | STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); |
| 5780 | __ CompareObjectType(r0, r1, r1, LAST_JS_PROXY_TYPE); |
| 5781 | DeoptimizeIf(le, instr->environment()); |
| 5782 | |
| 5783 | Label use_cache, call_runtime; |
| 5784 | __ CheckEnumCache(null_value, &call_runtime); |
| 5785 | |
| 5786 | __ ldr(r0, FieldMemOperand(r0, HeapObject::kMapOffset)); |
| 5787 | __ b(&use_cache); |
| 5788 | |
| 5789 | // Get the set of properties to enumerate. |
| 5790 | __ bind(&call_runtime); |
| 5791 | __ push(r0); |
| 5792 | CallRuntime(Runtime::kGetPropertyNamesFast, 1, instr); |
| 5793 | |
| 5794 | __ ldr(r1, FieldMemOperand(r0, HeapObject::kMapOffset)); |
| 5795 | __ LoadRoot(ip, Heap::kMetaMapRootIndex); |
| 5796 | __ cmp(r1, ip); |
| 5797 | DeoptimizeIf(ne, instr->environment()); |
| 5798 | __ bind(&use_cache); |
| 5799 | } |
| 5800 | |
| 5801 | |
| 5802 | void LCodeGen::DoForInCacheArray(LForInCacheArray* instr) { |
| 5803 | Register map = ToRegister(instr->map()); |
| 5804 | Register result = ToRegister(instr->result()); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 5805 | Label load_cache, done; |
| 5806 | __ EnumLength(result, map); |
| 5807 | __ cmp(result, Operand(Smi::FromInt(0))); |
| 5808 | __ b(ne, &load_cache); |
| 5809 | __ mov(result, Operand(isolate()->factory()->empty_fixed_array())); |
| 5810 | __ jmp(&done); |
| 5811 | |
| 5812 | __ bind(&load_cache); |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 5813 | __ LoadInstanceDescriptors(map, result); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 5814 | __ ldr(result, |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 5815 | FieldMemOperand(result, DescriptorArray::kEnumCacheOffset)); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 5816 | __ ldr(result, |
| 5817 | FieldMemOperand(result, FixedArray::SizeFor(instr->idx()))); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 5818 | __ cmp(result, Operand::Zero()); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 5819 | DeoptimizeIf(eq, instr->environment()); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 5820 | |
| 5821 | __ bind(&done); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 5822 | } |
| 5823 | |
| 5824 | |
| 5825 | void LCodeGen::DoCheckMapValue(LCheckMapValue* instr) { |
| 5826 | Register object = ToRegister(instr->value()); |
| 5827 | Register map = ToRegister(instr->map()); |
| 5828 | __ ldr(scratch0(), FieldMemOperand(object, HeapObject::kMapOffset)); |
| 5829 | __ cmp(map, scratch0()); |
| 5830 | DeoptimizeIf(ne, instr->environment()); |
| 5831 | } |
| 5832 | |
| 5833 | |
| 5834 | void LCodeGen::DoLoadFieldByIndex(LLoadFieldByIndex* instr) { |
| 5835 | Register object = ToRegister(instr->object()); |
| 5836 | Register index = ToRegister(instr->index()); |
| 5837 | Register result = ToRegister(instr->result()); |
| 5838 | Register scratch = scratch0(); |
| 5839 | |
| 5840 | Label out_of_object, done; |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 5841 | __ cmp(index, Operand::Zero()); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 5842 | __ b(lt, &out_of_object); |
| 5843 | |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 5844 | __ add(scratch, object, Operand::PointerOffsetFromSmiKey(index)); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 5845 | __ ldr(result, FieldMemOperand(scratch, JSObject::kHeaderSize)); |
| 5846 | |
| 5847 | __ b(&done); |
| 5848 | |
| 5849 | __ bind(&out_of_object); |
| 5850 | __ ldr(result, FieldMemOperand(object, JSObject::kPropertiesOffset)); |
| 5851 | // Index is equal to negated out of object property index plus 1. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 5852 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
| 5853 | __ sub(scratch, result, Operand::PointerOffsetFromSmiKey(index)); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 5854 | __ ldr(result, FieldMemOperand(scratch, |
| 5855 | FixedArray::kHeaderSize - kPointerSize)); |
| 5856 | __ bind(&done); |
| 5857 | } |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 5858 | |
| 5859 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 5860 | #undef __ |
| 5861 | |
| 5862 | } } // namespace v8::internal |