sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 28 | #include "v8.h" |
| 29 | |
| 30 | #if defined(V8_TARGET_ARCH_IA32) |
| 31 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 32 | #include "ia32/lithium-codegen-ia32.h" |
| 33 | #include "code-stubs.h" |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 34 | #include "deoptimizer.h" |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 35 | #include "stub-cache.h" |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 36 | #include "codegen.h" |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 37 | |
| 38 | namespace v8 { |
| 39 | namespace internal { |
| 40 | |
| 41 | |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 42 | // When invoking builtins, we need to record the safepoint in the middle of |
| 43 | // the invoke instruction sequence generated by the macro assembler. |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 44 | class SafepointGenerator : public CallWrapper { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 45 | public: |
| 46 | SafepointGenerator(LCodeGen* codegen, |
| 47 | LPointerMap* pointers, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 48 | Safepoint::DeoptMode mode) |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 49 | : codegen_(codegen), |
| 50 | pointers_(pointers), |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 51 | deopt_mode_(mode) {} |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 52 | virtual ~SafepointGenerator() { } |
| 53 | |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 54 | virtual void BeforeCall(int call_size) const {} |
| 55 | |
| 56 | virtual void AfterCall() const { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 57 | codegen_->RecordSafepoint(pointers_, deopt_mode_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 58 | } |
| 59 | |
| 60 | private: |
| 61 | LCodeGen* codegen_; |
| 62 | LPointerMap* pointers_; |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 63 | Safepoint::DeoptMode deopt_mode_; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 64 | }; |
| 65 | |
| 66 | |
| 67 | #define __ masm()-> |
| 68 | |
| 69 | bool LCodeGen::GenerateCode() { |
| 70 | HPhase phase("Code generation", chunk()); |
| 71 | ASSERT(is_unused()); |
| 72 | status_ = GENERATING; |
| 73 | CpuFeatures::Scope scope(SSE2); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 74 | |
| 75 | CodeStub::GenerateFPStubs(); |
| 76 | |
| 77 | // Open a frame scope to indicate that there is a frame on the stack. The |
| 78 | // MANUAL indicates that the scope shouldn't actually generate code to set up |
| 79 | // the frame (that is done in GeneratePrologue). |
| 80 | FrameScope frame_scope(masm_, StackFrame::MANUAL); |
| 81 | |
| 82 | dynamic_frame_alignment_ = chunk()->num_double_slots() > 2 || |
| 83 | info()->osr_ast_id() != AstNode::kNoNumber; |
| 84 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 85 | return GeneratePrologue() && |
| 86 | GenerateBody() && |
| 87 | GenerateDeferredCode() && |
| 88 | GenerateSafepointTable(); |
| 89 | } |
| 90 | |
| 91 | |
| 92 | void LCodeGen::FinishCode(Handle<Code> code) { |
| 93 | ASSERT(is_done()); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 94 | code->set_stack_slots(GetStackSlotCount()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 95 | code->set_safepoint_table_offset(safepoints_.GetCodeOffset()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 96 | PopulateDeoptimizationData(code); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 97 | Deoptimizer::EnsureRelocSpaceForLazyDeoptimization(code); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 98 | } |
| 99 | |
| 100 | |
| 101 | void LCodeGen::Abort(const char* format, ...) { |
| 102 | if (FLAG_trace_bailout) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 103 | SmartArrayPointer<char> name( |
| 104 | info()->shared_info()->DebugName()->ToCString()); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 105 | PrintF("Aborting LCodeGen in @\"%s\": ", *name); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 106 | va_list arguments; |
| 107 | va_start(arguments, format); |
| 108 | OS::VPrint(format, arguments); |
| 109 | va_end(arguments); |
| 110 | PrintF("\n"); |
| 111 | } |
| 112 | status_ = ABORTED; |
| 113 | } |
| 114 | |
| 115 | |
| 116 | void LCodeGen::Comment(const char* format, ...) { |
| 117 | if (!FLAG_code_comments) return; |
| 118 | char buffer[4 * KB]; |
| 119 | StringBuilder builder(buffer, ARRAY_SIZE(buffer)); |
| 120 | va_list arguments; |
| 121 | va_start(arguments, format); |
| 122 | builder.AddFormattedList(format, arguments); |
| 123 | va_end(arguments); |
| 124 | |
| 125 | // Copy the string before recording it in the assembler to avoid |
| 126 | // issues when the stack allocated buffer goes out of scope. |
| 127 | size_t length = builder.position(); |
| 128 | Vector<char> copy = Vector<char>::New(length + 1); |
| 129 | memcpy(copy.start(), builder.Finalize(), copy.length()); |
| 130 | masm()->RecordComment(copy.start()); |
| 131 | } |
| 132 | |
| 133 | |
| 134 | bool LCodeGen::GeneratePrologue() { |
| 135 | ASSERT(is_generating()); |
| 136 | |
| 137 | #ifdef DEBUG |
| 138 | if (strlen(FLAG_stop_at) > 0 && |
| 139 | info_->function()->name()->IsEqualTo(CStrVector(FLAG_stop_at))) { |
| 140 | __ int3(); |
| 141 | } |
| 142 | #endif |
| 143 | |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 144 | // Strict mode functions and builtins need to replace the receiver |
| 145 | // with undefined when called as functions (without an explicit |
| 146 | // receiver object). ecx is zero for method calls and non-zero for |
| 147 | // function calls. |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 148 | if (!info_->is_classic_mode() || info_->is_native()) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 149 | Label ok; |
| 150 | __ test(ecx, Operand(ecx)); |
| 151 | __ j(zero, &ok, Label::kNear); |
| 152 | // +1 for return address. |
| 153 | int receiver_offset = (scope()->num_parameters() + 1) * kPointerSize; |
| 154 | __ mov(Operand(esp, receiver_offset), |
| 155 | Immediate(isolate()->factory()->undefined_value())); |
| 156 | __ bind(&ok); |
| 157 | } |
| 158 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 159 | if (dynamic_frame_alignment_) { |
| 160 | Label do_not_pad, align_loop; |
| 161 | STATIC_ASSERT(kDoubleSize == 2 * kPointerSize); |
| 162 | // Align esp to a multiple of 2 * kPointerSize. |
| 163 | __ test(esp, Immediate(kPointerSize)); |
| 164 | __ j(zero, &do_not_pad, Label::kNear); |
| 165 | __ push(Immediate(0)); |
| 166 | __ mov(ebx, esp); |
| 167 | // Copy arguments, receiver, and return address. |
| 168 | __ mov(ecx, Immediate(scope()->num_parameters() + 2)); |
| 169 | |
| 170 | __ bind(&align_loop); |
| 171 | __ mov(eax, Operand(ebx, 1 * kPointerSize)); |
| 172 | __ mov(Operand(ebx, 0), eax); |
| 173 | __ add(Operand(ebx), Immediate(kPointerSize)); |
| 174 | __ dec(ecx); |
| 175 | __ j(not_zero, &align_loop, Label::kNear); |
| 176 | __ mov(Operand(ebx, 0), |
| 177 | Immediate(isolate()->factory()->frame_alignment_marker())); |
| 178 | |
| 179 | __ bind(&do_not_pad); |
| 180 | } |
| 181 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 182 | __ push(ebp); // Caller's frame pointer. |
| 183 | __ mov(ebp, esp); |
| 184 | __ push(esi); // Callee's context. |
| 185 | __ push(edi); // Callee's JS function. |
| 186 | |
| 187 | // Reserve space for the stack slots needed by the code. |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 188 | int slots = GetStackSlotCount(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 189 | if (slots > 0) { |
| 190 | if (FLAG_debug_code) { |
| 191 | __ mov(Operand(eax), Immediate(slots)); |
| 192 | Label loop; |
| 193 | __ bind(&loop); |
| 194 | __ push(Immediate(kSlotsZapValue)); |
| 195 | __ dec(eax); |
| 196 | __ j(not_zero, &loop); |
| 197 | } else { |
| 198 | __ sub(Operand(esp), Immediate(slots * kPointerSize)); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 199 | #ifdef _MSC_VER |
| 200 | // On windows, you may not access the stack more than one page below |
| 201 | // the most recently mapped page. To make the allocated area randomly |
| 202 | // accessible, we write to each page in turn (the value is irrelevant). |
| 203 | const int kPageSize = 4 * KB; |
| 204 | for (int offset = slots * kPointerSize - kPageSize; |
| 205 | offset > 0; |
| 206 | offset -= kPageSize) { |
| 207 | __ mov(Operand(esp, offset), eax); |
| 208 | } |
| 209 | #endif |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 210 | } |
| 211 | } |
| 212 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 213 | // Possibly allocate a local context. |
| 214 | int heap_slots = scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
| 215 | if (heap_slots > 0) { |
| 216 | Comment(";;; Allocate local context"); |
| 217 | // Argument to NewContext is the function, which is still in edi. |
| 218 | __ push(edi); |
| 219 | if (heap_slots <= FastNewContextStub::kMaximumSlots) { |
| 220 | FastNewContextStub stub(heap_slots); |
| 221 | __ CallStub(&stub); |
| 222 | } else { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 223 | __ CallRuntime(Runtime::kNewFunctionContext, 1); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 224 | } |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 225 | RecordSafepoint(Safepoint::kNoLazyDeopt); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 226 | // Context is returned in both eax and esi. It replaces the context |
| 227 | // passed to us. It's saved in the stack and kept live in esi. |
| 228 | __ mov(Operand(ebp, StandardFrameConstants::kContextOffset), esi); |
| 229 | |
| 230 | // Copy parameters into context if necessary. |
| 231 | int num_parameters = scope()->num_parameters(); |
| 232 | for (int i = 0; i < num_parameters; i++) { |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 233 | Variable* var = scope()->parameter(i); |
| 234 | if (var->IsContextSlot()) { |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 235 | int parameter_offset = StandardFrameConstants::kCallerSPOffset + |
| 236 | (num_parameters - 1 - i) * kPointerSize; |
| 237 | // Load parameter from stack. |
| 238 | __ mov(eax, Operand(ebp, parameter_offset)); |
| 239 | // Store it in the context. |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 240 | int context_offset = Context::SlotOffset(var->index()); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 241 | __ mov(Operand(esi, context_offset), eax); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 242 | // Update the write barrier. This clobbers eax and ebx. |
| 243 | __ RecordWriteContextSlot(esi, |
| 244 | context_offset, |
| 245 | eax, |
| 246 | ebx, |
| 247 | kDontSaveFPRegs); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 248 | } |
| 249 | } |
| 250 | Comment(";;; End allocate local context"); |
| 251 | } |
| 252 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 253 | // Trace the call. |
| 254 | if (FLAG_trace) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 255 | // We have not executed any compiled code yet, so esi still holds the |
| 256 | // incoming context. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 257 | __ CallRuntime(Runtime::kTraceEnter, 0); |
| 258 | } |
| 259 | return !is_aborted(); |
| 260 | } |
| 261 | |
| 262 | |
| 263 | bool LCodeGen::GenerateBody() { |
| 264 | ASSERT(is_generating()); |
| 265 | bool emit_instructions = true; |
| 266 | for (current_instruction_ = 0; |
| 267 | !is_aborted() && current_instruction_ < instructions_->length(); |
| 268 | current_instruction_++) { |
| 269 | LInstruction* instr = instructions_->at(current_instruction_); |
| 270 | if (instr->IsLabel()) { |
| 271 | LLabel* label = LLabel::cast(instr); |
| 272 | emit_instructions = !label->HasReplacement(); |
| 273 | } |
| 274 | |
| 275 | if (emit_instructions) { |
| 276 | Comment(";;; @%d: %s.", current_instruction_, instr->Mnemonic()); |
| 277 | instr->CompileToNative(this); |
| 278 | } |
| 279 | } |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 280 | EnsureSpaceForLazyDeopt(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 281 | return !is_aborted(); |
| 282 | } |
| 283 | |
| 284 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 285 | bool LCodeGen::GenerateDeferredCode() { |
| 286 | ASSERT(is_generating()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 287 | if (deferred_.length() > 0) { |
| 288 | for (int i = 0; !is_aborted() && i < deferred_.length(); i++) { |
| 289 | LDeferredCode* code = deferred_[i]; |
| 290 | __ bind(code->entry()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 291 | Comment(";;; Deferred code @%d: %s.", |
| 292 | code->instruction_index(), |
| 293 | code->instr()->Mnemonic()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 294 | code->Generate(); |
| 295 | __ jmp(code->exit()); |
| 296 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 297 | } |
| 298 | |
| 299 | // Deferred code is the last part of the instruction sequence. Mark |
| 300 | // the generated code as done unless we bailed out. |
| 301 | if (!is_aborted()) status_ = DONE; |
| 302 | return !is_aborted(); |
| 303 | } |
| 304 | |
| 305 | |
| 306 | bool LCodeGen::GenerateSafepointTable() { |
| 307 | ASSERT(is_done()); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 308 | safepoints_.Emit(masm(), GetStackSlotCount()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 309 | return !is_aborted(); |
| 310 | } |
| 311 | |
| 312 | |
| 313 | Register LCodeGen::ToRegister(int index) const { |
| 314 | return Register::FromAllocationIndex(index); |
| 315 | } |
| 316 | |
| 317 | |
| 318 | XMMRegister LCodeGen::ToDoubleRegister(int index) const { |
| 319 | return XMMRegister::FromAllocationIndex(index); |
| 320 | } |
| 321 | |
| 322 | |
| 323 | Register LCodeGen::ToRegister(LOperand* op) const { |
| 324 | ASSERT(op->IsRegister()); |
| 325 | return ToRegister(op->index()); |
| 326 | } |
| 327 | |
| 328 | |
| 329 | XMMRegister LCodeGen::ToDoubleRegister(LOperand* op) const { |
| 330 | ASSERT(op->IsDoubleRegister()); |
| 331 | return ToDoubleRegister(op->index()); |
| 332 | } |
| 333 | |
| 334 | |
| 335 | int LCodeGen::ToInteger32(LConstantOperand* op) const { |
| 336 | Handle<Object> value = chunk_->LookupLiteral(op); |
| 337 | ASSERT(chunk_->LookupLiteralRepresentation(op).IsInteger32()); |
| 338 | ASSERT(static_cast<double>(static_cast<int32_t>(value->Number())) == |
| 339 | value->Number()); |
| 340 | return static_cast<int32_t>(value->Number()); |
| 341 | } |
| 342 | |
| 343 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 344 | Handle<Object> LCodeGen::ToHandle(LConstantOperand* op) const { |
| 345 | Handle<Object> literal = chunk_->LookupLiteral(op); |
| 346 | ASSERT(chunk_->LookupLiteralRepresentation(op).IsTagged()); |
| 347 | return literal; |
| 348 | } |
| 349 | |
| 350 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 351 | double LCodeGen::ToDouble(LConstantOperand* op) const { |
| 352 | Handle<Object> value = chunk_->LookupLiteral(op); |
| 353 | return value->Number(); |
| 354 | } |
| 355 | |
| 356 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 357 | Immediate LCodeGen::ToImmediate(LOperand* op) { |
| 358 | LConstantOperand* const_op = LConstantOperand::cast(op); |
| 359 | Handle<Object> literal = chunk_->LookupLiteral(const_op); |
| 360 | Representation r = chunk_->LookupLiteralRepresentation(const_op); |
| 361 | if (r.IsInteger32()) { |
| 362 | ASSERT(literal->IsNumber()); |
| 363 | return Immediate(static_cast<int32_t>(literal->Number())); |
| 364 | } else if (r.IsDouble()) { |
| 365 | Abort("unsupported double immediate"); |
| 366 | } |
| 367 | ASSERT(r.IsTagged()); |
| 368 | return Immediate(literal); |
| 369 | } |
| 370 | |
| 371 | |
| 372 | Operand LCodeGen::ToOperand(LOperand* op) const { |
| 373 | if (op->IsRegister()) return Operand(ToRegister(op)); |
| 374 | if (op->IsDoubleRegister()) return Operand(ToDoubleRegister(op)); |
| 375 | ASSERT(op->IsStackSlot() || op->IsDoubleStackSlot()); |
| 376 | int index = op->index(); |
| 377 | if (index >= 0) { |
| 378 | // Local or spill slot. Skip the frame pointer, function, and |
| 379 | // context in the fixed part of the frame. |
| 380 | return Operand(ebp, -(index + 3) * kPointerSize); |
| 381 | } else { |
| 382 | // Incoming parameter. Skip the return address. |
| 383 | return Operand(ebp, -(index - 1) * kPointerSize); |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 388 | Operand LCodeGen::HighOperand(LOperand* op) { |
| 389 | ASSERT(op->IsDoubleStackSlot()); |
| 390 | int index = op->index(); |
| 391 | int offset = (index >= 0) ? index + 3 : index - 1; |
| 392 | return Operand(ebp, -offset * kPointerSize); |
| 393 | } |
| 394 | |
| 395 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 396 | void LCodeGen::WriteTranslation(LEnvironment* environment, |
| 397 | Translation* translation) { |
| 398 | if (environment == NULL) return; |
| 399 | |
| 400 | // The translation includes one command per value in the environment. |
| 401 | int translation_size = environment->values()->length(); |
| 402 | // The output frame height does not include the parameters. |
| 403 | int height = translation_size - environment->parameter_count(); |
| 404 | |
| 405 | WriteTranslation(environment->outer(), translation); |
| 406 | int closure_id = DefineDeoptimizationLiteral(environment->closure()); |
| 407 | translation->BeginFrame(environment->ast_id(), closure_id, height); |
| 408 | for (int i = 0; i < translation_size; ++i) { |
| 409 | LOperand* value = environment->values()->at(i); |
| 410 | // spilled_registers_ and spilled_double_registers_ are either |
| 411 | // both NULL or both set. |
| 412 | if (environment->spilled_registers() != NULL && value != NULL) { |
| 413 | if (value->IsRegister() && |
| 414 | environment->spilled_registers()[value->index()] != NULL) { |
| 415 | translation->MarkDuplicate(); |
| 416 | AddToTranslation(translation, |
| 417 | environment->spilled_registers()[value->index()], |
| 418 | environment->HasTaggedValueAt(i)); |
| 419 | } else if ( |
| 420 | value->IsDoubleRegister() && |
| 421 | environment->spilled_double_registers()[value->index()] != NULL) { |
| 422 | translation->MarkDuplicate(); |
| 423 | AddToTranslation( |
| 424 | translation, |
| 425 | environment->spilled_double_registers()[value->index()], |
| 426 | false); |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | AddToTranslation(translation, value, environment->HasTaggedValueAt(i)); |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 435 | void LCodeGen::AddToTranslation(Translation* translation, |
| 436 | LOperand* op, |
| 437 | bool is_tagged) { |
| 438 | if (op == NULL) { |
| 439 | // TODO(twuerthinger): Introduce marker operands to indicate that this value |
| 440 | // is not present and must be reconstructed from the deoptimizer. Currently |
| 441 | // this is only used for the arguments object. |
| 442 | translation->StoreArgumentsObject(); |
| 443 | } else if (op->IsStackSlot()) { |
| 444 | if (is_tagged) { |
| 445 | translation->StoreStackSlot(op->index()); |
| 446 | } else { |
| 447 | translation->StoreInt32StackSlot(op->index()); |
| 448 | } |
| 449 | } else if (op->IsDoubleStackSlot()) { |
| 450 | translation->StoreDoubleStackSlot(op->index()); |
| 451 | } else if (op->IsArgument()) { |
| 452 | ASSERT(is_tagged); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 453 | int src_index = GetStackSlotCount() + op->index(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 454 | translation->StoreStackSlot(src_index); |
| 455 | } else if (op->IsRegister()) { |
| 456 | Register reg = ToRegister(op); |
| 457 | if (is_tagged) { |
| 458 | translation->StoreRegister(reg); |
| 459 | } else { |
| 460 | translation->StoreInt32Register(reg); |
| 461 | } |
| 462 | } else if (op->IsDoubleRegister()) { |
| 463 | XMMRegister reg = ToDoubleRegister(op); |
| 464 | translation->StoreDoubleRegister(reg); |
| 465 | } else if (op->IsConstantOperand()) { |
| 466 | Handle<Object> literal = chunk()->LookupLiteral(LConstantOperand::cast(op)); |
| 467 | int src_index = DefineDeoptimizationLiteral(literal); |
| 468 | translation->StoreLiteral(src_index); |
| 469 | } else { |
| 470 | UNREACHABLE(); |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 475 | void LCodeGen::CallCodeGeneric(Handle<Code> code, |
| 476 | RelocInfo::Mode mode, |
| 477 | LInstruction* instr, |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 478 | SafepointMode safepoint_mode) { |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 479 | ASSERT(instr != NULL); |
| 480 | LPointerMap* pointers = instr->pointer_map(); |
| 481 | RecordPosition(pointers->position()); |
| 482 | __ call(code, mode); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 483 | RecordSafepointWithLazyDeopt(instr, safepoint_mode); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 484 | |
| 485 | // Signal that we don't inline smi code before these stubs in the |
| 486 | // optimizing code generator. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 487 | if (code->kind() == Code::BINARY_OP_IC || |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 488 | code->kind() == Code::COMPARE_IC) { |
| 489 | __ nop(); |
| 490 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 491 | } |
| 492 | |
| 493 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 494 | void LCodeGen::CallCode(Handle<Code> code, |
| 495 | RelocInfo::Mode mode, |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 496 | LInstruction* instr) { |
| 497 | CallCodeGeneric(code, mode, instr, RECORD_SIMPLE_SAFEPOINT); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 498 | } |
| 499 | |
| 500 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 501 | void LCodeGen::CallRuntime(const Runtime::Function* fun, |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 502 | int argc, |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 503 | LInstruction* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 504 | ASSERT(instr != NULL); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 505 | ASSERT(instr->HasPointerMap()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 506 | LPointerMap* pointers = instr->pointer_map(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 507 | RecordPosition(pointers->position()); |
| 508 | |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 509 | __ CallRuntime(fun, argc); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 510 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 511 | RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 512 | } |
| 513 | |
| 514 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 515 | void LCodeGen::CallRuntimeFromDeferred(Runtime::FunctionId id, |
| 516 | int argc, |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 517 | LInstruction* instr, |
| 518 | LOperand* context) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 519 | if (context->IsRegister()) { |
| 520 | if (!ToRegister(context).is(esi)) { |
| 521 | __ mov(esi, ToRegister(context)); |
| 522 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 523 | } else if (context->IsStackSlot()) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 524 | __ mov(esi, ToOperand(context)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 525 | } else if (context->IsConstantOperand()) { |
| 526 | Handle<Object> literal = |
| 527 | chunk_->LookupLiteral(LConstantOperand::cast(context)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 528 | __ LoadHeapObject(esi, Handle<Context>::cast(literal)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 529 | } else { |
| 530 | UNREACHABLE(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 531 | } |
| 532 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 533 | __ CallRuntimeSaveDoubles(id); |
| 534 | RecordSafepointWithRegisters( |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 535 | instr->pointer_map(), argc, Safepoint::kNoLazyDeopt); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 536 | } |
| 537 | |
| 538 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 539 | void LCodeGen::RegisterEnvironmentForDeoptimization( |
| 540 | LEnvironment* environment, Safepoint::DeoptMode mode) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 541 | if (!environment->HasBeenRegistered()) { |
| 542 | // Physical stack frame layout: |
| 543 | // -x ............. -4 0 ..................................... y |
| 544 | // [incoming arguments] [spill slots] [pushed outgoing arguments] |
| 545 | |
| 546 | // Layout of the environment: |
| 547 | // 0 ..................................................... size-1 |
| 548 | // [parameters] [locals] [expression stack including arguments] |
| 549 | |
| 550 | // Layout of the translation: |
| 551 | // 0 ........................................................ size - 1 + 4 |
| 552 | // [expression stack including arguments] [locals] [4 words] [parameters] |
| 553 | // |>------------ translation_size ------------<| |
| 554 | |
| 555 | int frame_count = 0; |
| 556 | for (LEnvironment* e = environment; e != NULL; e = e->outer()) { |
| 557 | ++frame_count; |
| 558 | } |
| 559 | Translation translation(&translations_, frame_count); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 560 | WriteTranslation(environment, &translation); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 561 | int deoptimization_index = deoptimizations_.length(); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 562 | int pc_offset = masm()->pc_offset(); |
| 563 | environment->Register(deoptimization_index, |
| 564 | translation.index(), |
| 565 | (mode == Safepoint::kLazyDeopt) ? pc_offset : -1); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 566 | deoptimizations_.Add(environment); |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | |
| 571 | void LCodeGen::DeoptimizeIf(Condition cc, LEnvironment* environment) { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 572 | RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 573 | ASSERT(environment->HasBeenRegistered()); |
| 574 | int id = environment->deoptimization_index(); |
| 575 | Address entry = Deoptimizer::GetDeoptimizationEntry(id, Deoptimizer::EAGER); |
| 576 | ASSERT(entry != NULL); |
| 577 | if (entry == NULL) { |
| 578 | Abort("bailout was not prepared"); |
| 579 | return; |
| 580 | } |
| 581 | |
| 582 | if (FLAG_deopt_every_n_times != 0) { |
| 583 | Handle<SharedFunctionInfo> shared(info_->shared_info()); |
| 584 | Label no_deopt; |
| 585 | __ pushfd(); |
| 586 | __ push(eax); |
| 587 | __ push(ebx); |
| 588 | __ mov(ebx, shared); |
| 589 | __ mov(eax, FieldOperand(ebx, SharedFunctionInfo::kDeoptCounterOffset)); |
| 590 | __ sub(Operand(eax), Immediate(Smi::FromInt(1))); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 591 | __ j(not_zero, &no_deopt, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 592 | if (FLAG_trap_on_deopt) __ int3(); |
| 593 | __ mov(eax, Immediate(Smi::FromInt(FLAG_deopt_every_n_times))); |
| 594 | __ mov(FieldOperand(ebx, SharedFunctionInfo::kDeoptCounterOffset), eax); |
| 595 | __ pop(ebx); |
| 596 | __ pop(eax); |
| 597 | __ popfd(); |
| 598 | __ jmp(entry, RelocInfo::RUNTIME_ENTRY); |
| 599 | |
| 600 | __ bind(&no_deopt); |
| 601 | __ mov(FieldOperand(ebx, SharedFunctionInfo::kDeoptCounterOffset), eax); |
| 602 | __ pop(ebx); |
| 603 | __ pop(eax); |
| 604 | __ popfd(); |
| 605 | } |
| 606 | |
| 607 | if (cc == no_condition) { |
| 608 | if (FLAG_trap_on_deopt) __ int3(); |
| 609 | __ jmp(entry, RelocInfo::RUNTIME_ENTRY); |
| 610 | } else { |
| 611 | if (FLAG_trap_on_deopt) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 612 | Label done; |
| 613 | __ j(NegateCondition(cc), &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 614 | __ int3(); |
| 615 | __ jmp(entry, RelocInfo::RUNTIME_ENTRY); |
| 616 | __ bind(&done); |
| 617 | } else { |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 618 | __ j(cc, entry, RelocInfo::RUNTIME_ENTRY); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 619 | } |
| 620 | } |
| 621 | } |
| 622 | |
| 623 | |
| 624 | void LCodeGen::PopulateDeoptimizationData(Handle<Code> code) { |
| 625 | int length = deoptimizations_.length(); |
| 626 | if (length == 0) return; |
| 627 | ASSERT(FLAG_deopt); |
| 628 | Handle<DeoptimizationInputData> data = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 629 | factory()->NewDeoptimizationInputData(length, TENURED); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 630 | |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 631 | Handle<ByteArray> translations = translations_.CreateByteArray(); |
| 632 | data->SetTranslationByteArray(*translations); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 633 | data->SetInlinedFunctionCount(Smi::FromInt(inlined_function_count_)); |
| 634 | |
| 635 | Handle<FixedArray> literals = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 636 | factory()->NewFixedArray(deoptimization_literals_.length(), TENURED); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 637 | for (int i = 0; i < deoptimization_literals_.length(); i++) { |
| 638 | literals->set(i, *deoptimization_literals_[i]); |
| 639 | } |
| 640 | data->SetLiteralArray(*literals); |
| 641 | |
| 642 | data->SetOsrAstId(Smi::FromInt(info_->osr_ast_id())); |
| 643 | data->SetOsrPcOffset(Smi::FromInt(osr_pc_offset_)); |
| 644 | |
| 645 | // Populate the deoptimization entries. |
| 646 | for (int i = 0; i < length; i++) { |
| 647 | LEnvironment* env = deoptimizations_[i]; |
| 648 | data->SetAstId(i, Smi::FromInt(env->ast_id())); |
| 649 | data->SetTranslationIndex(i, Smi::FromInt(env->translation_index())); |
| 650 | data->SetArgumentsStackHeight(i, |
| 651 | Smi::FromInt(env->arguments_stack_height())); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 652 | data->SetPc(i, Smi::FromInt(env->pc_offset())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 653 | } |
| 654 | code->set_deoptimization_data(*data); |
| 655 | } |
| 656 | |
| 657 | |
| 658 | int LCodeGen::DefineDeoptimizationLiteral(Handle<Object> literal) { |
| 659 | int result = deoptimization_literals_.length(); |
| 660 | for (int i = 0; i < deoptimization_literals_.length(); ++i) { |
| 661 | if (deoptimization_literals_[i].is_identical_to(literal)) return i; |
| 662 | } |
| 663 | deoptimization_literals_.Add(literal); |
| 664 | return result; |
| 665 | } |
| 666 | |
| 667 | |
| 668 | void LCodeGen::PopulateDeoptimizationLiteralsWithInlinedFunctions() { |
| 669 | ASSERT(deoptimization_literals_.length() == 0); |
| 670 | |
| 671 | const ZoneList<Handle<JSFunction> >* inlined_closures = |
| 672 | chunk()->inlined_closures(); |
| 673 | |
| 674 | for (int i = 0, length = inlined_closures->length(); |
| 675 | i < length; |
| 676 | i++) { |
| 677 | DefineDeoptimizationLiteral(inlined_closures->at(i)); |
| 678 | } |
| 679 | |
| 680 | inlined_function_count_ = deoptimization_literals_.length(); |
| 681 | } |
| 682 | |
| 683 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 684 | void LCodeGen::RecordSafepointWithLazyDeopt( |
| 685 | LInstruction* instr, SafepointMode safepoint_mode) { |
| 686 | if (safepoint_mode == RECORD_SIMPLE_SAFEPOINT) { |
| 687 | RecordSafepoint(instr->pointer_map(), Safepoint::kLazyDeopt); |
| 688 | } else { |
| 689 | ASSERT(safepoint_mode == RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); |
| 690 | RecordSafepointWithRegisters( |
| 691 | instr->pointer_map(), 0, Safepoint::kLazyDeopt); |
| 692 | } |
| 693 | } |
| 694 | |
| 695 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 696 | void LCodeGen::RecordSafepoint( |
| 697 | LPointerMap* pointers, |
| 698 | Safepoint::Kind kind, |
| 699 | int arguments, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 700 | Safepoint::DeoptMode deopt_mode) { |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 701 | ASSERT(kind == expected_safepoint_kind_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 702 | const ZoneList<LOperand*>* operands = pointers->GetNormalizedOperands(); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 703 | Safepoint safepoint = |
| 704 | safepoints_.DefineSafepoint(masm(), kind, arguments, deopt_mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 705 | for (int i = 0; i < operands->length(); i++) { |
| 706 | LOperand* pointer = operands->at(i); |
| 707 | if (pointer->IsStackSlot()) { |
| 708 | safepoint.DefinePointerSlot(pointer->index()); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 709 | } else if (pointer->IsRegister() && (kind & Safepoint::kWithRegisters)) { |
| 710 | safepoint.DefinePointerRegister(ToRegister(pointer)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 711 | } |
| 712 | } |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 713 | } |
| 714 | |
| 715 | |
| 716 | void LCodeGen::RecordSafepoint(LPointerMap* pointers, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 717 | Safepoint::DeoptMode mode) { |
| 718 | RecordSafepoint(pointers, Safepoint::kSimple, 0, mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 719 | } |
| 720 | |
| 721 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 722 | void LCodeGen::RecordSafepoint(Safepoint::DeoptMode mode) { |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 723 | LPointerMap empty_pointers(RelocInfo::kNoPosition); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 724 | RecordSafepoint(&empty_pointers, mode); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 725 | } |
| 726 | |
| 727 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 728 | void LCodeGen::RecordSafepointWithRegisters(LPointerMap* pointers, |
| 729 | int arguments, |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 730 | Safepoint::DeoptMode mode) { |
| 731 | RecordSafepoint(pointers, Safepoint::kWithRegisters, arguments, mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 732 | } |
| 733 | |
| 734 | |
| 735 | void LCodeGen::RecordPosition(int position) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 736 | if (position == RelocInfo::kNoPosition) return; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 737 | masm()->positions_recorder()->RecordPosition(position); |
| 738 | } |
| 739 | |
| 740 | |
| 741 | void LCodeGen::DoLabel(LLabel* label) { |
| 742 | if (label->is_loop_header()) { |
| 743 | Comment(";;; B%d - LOOP entry", label->block_id()); |
| 744 | } else { |
| 745 | Comment(";;; B%d", label->block_id()); |
| 746 | } |
| 747 | __ bind(label->label()); |
| 748 | current_block_ = label->block_id(); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 749 | DoGap(label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 750 | } |
| 751 | |
| 752 | |
| 753 | void LCodeGen::DoParallelMove(LParallelMove* move) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 754 | resolver_.Resolve(move); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 755 | } |
| 756 | |
| 757 | |
| 758 | void LCodeGen::DoGap(LGap* gap) { |
| 759 | for (int i = LGap::FIRST_INNER_POSITION; |
| 760 | i <= LGap::LAST_INNER_POSITION; |
| 761 | i++) { |
| 762 | LGap::InnerPosition inner_pos = static_cast<LGap::InnerPosition>(i); |
| 763 | LParallelMove* move = gap->GetParallelMove(inner_pos); |
| 764 | if (move != NULL) DoParallelMove(move); |
| 765 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 766 | } |
| 767 | |
| 768 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 769 | void LCodeGen::DoInstructionGap(LInstructionGap* instr) { |
| 770 | DoGap(instr); |
| 771 | } |
| 772 | |
| 773 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 774 | void LCodeGen::DoParameter(LParameter* instr) { |
| 775 | // Nothing to do. |
| 776 | } |
| 777 | |
| 778 | |
| 779 | void LCodeGen::DoCallStub(LCallStub* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 780 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 781 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 782 | switch (instr->hydrogen()->major_key()) { |
| 783 | case CodeStub::RegExpConstructResult: { |
| 784 | RegExpConstructResultStub stub; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 785 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 786 | break; |
| 787 | } |
| 788 | case CodeStub::RegExpExec: { |
| 789 | RegExpExecStub stub; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 790 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 791 | break; |
| 792 | } |
| 793 | case CodeStub::SubString: { |
| 794 | SubStringStub stub; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 795 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 796 | break; |
| 797 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 798 | case CodeStub::NumberToString: { |
| 799 | NumberToStringStub stub; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 800 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 801 | break; |
| 802 | } |
| 803 | case CodeStub::StringAdd: { |
| 804 | StringAddStub stub(NO_STRING_ADD_FLAGS); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 805 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 806 | break; |
| 807 | } |
| 808 | case CodeStub::StringCompare: { |
| 809 | StringCompareStub stub; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 810 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 811 | break; |
| 812 | } |
| 813 | case CodeStub::TranscendentalCache: { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 814 | TranscendentalCacheStub stub(instr->transcendental_type(), |
| 815 | TranscendentalCacheStub::TAGGED); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 816 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 817 | break; |
| 818 | } |
| 819 | default: |
| 820 | UNREACHABLE(); |
| 821 | } |
| 822 | } |
| 823 | |
| 824 | |
| 825 | void LCodeGen::DoUnknownOSRValue(LUnknownOSRValue* instr) { |
| 826 | // Nothing to do. |
| 827 | } |
| 828 | |
| 829 | |
| 830 | void LCodeGen::DoModI(LModI* instr) { |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 831 | if (instr->hydrogen()->HasPowerOf2Divisor()) { |
| 832 | Register dividend = ToRegister(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 833 | |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 834 | int32_t divisor = |
| 835 | HConstant::cast(instr->hydrogen()->right())->Integer32Value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 836 | |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 837 | if (divisor < 0) divisor = -divisor; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 838 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 839 | Label positive_dividend, done; |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 840 | __ test(dividend, Operand(dividend)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 841 | __ j(not_sign, &positive_dividend, Label::kNear); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 842 | __ neg(dividend); |
| 843 | __ and_(dividend, divisor - 1); |
| 844 | __ neg(dividend); |
| 845 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 846 | __ j(not_zero, &done, Label::kNear); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 847 | DeoptimizeIf(no_condition, instr->environment()); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 848 | } else { |
| 849 | __ jmp(&done, Label::kNear); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 850 | } |
| 851 | __ bind(&positive_dividend); |
| 852 | __ and_(dividend, divisor - 1); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 853 | __ bind(&done); |
| 854 | } else { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 855 | Label done, remainder_eq_dividend, slow, do_subtraction, both_positive; |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 856 | Register left_reg = ToRegister(instr->InputAt(0)); |
| 857 | Register right_reg = ToRegister(instr->InputAt(1)); |
| 858 | Register result_reg = ToRegister(instr->result()); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 859 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 860 | ASSERT(left_reg.is(eax)); |
| 861 | ASSERT(result_reg.is(edx)); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 862 | ASSERT(!right_reg.is(eax)); |
| 863 | ASSERT(!right_reg.is(edx)); |
| 864 | |
| 865 | // Check for x % 0. |
| 866 | if (instr->hydrogen()->CheckFlag(HValue::kCanBeDivByZero)) { |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 867 | __ test(right_reg, Operand(right_reg)); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 868 | DeoptimizeIf(zero, instr->environment()); |
| 869 | } |
| 870 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 871 | __ test(left_reg, Operand(left_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 872 | __ j(zero, &remainder_eq_dividend, Label::kNear); |
| 873 | __ j(sign, &slow, Label::kNear); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 874 | |
| 875 | __ test(right_reg, Operand(right_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 876 | __ j(not_sign, &both_positive, Label::kNear); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 877 | // The sign of the divisor doesn't matter. |
| 878 | __ neg(right_reg); |
| 879 | |
| 880 | __ bind(&both_positive); |
| 881 | // If the dividend is smaller than the nonnegative |
| 882 | // divisor, the dividend is the result. |
| 883 | __ cmp(left_reg, Operand(right_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 884 | __ j(less, &remainder_eq_dividend, Label::kNear); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 885 | |
| 886 | // Check if the divisor is a PowerOfTwo integer. |
| 887 | Register scratch = ToRegister(instr->TempAt(0)); |
| 888 | __ mov(scratch, right_reg); |
| 889 | __ sub(Operand(scratch), Immediate(1)); |
| 890 | __ test(scratch, Operand(right_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 891 | __ j(not_zero, &do_subtraction, Label::kNear); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 892 | __ and_(left_reg, Operand(scratch)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 893 | __ jmp(&remainder_eq_dividend, Label::kNear); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 894 | |
| 895 | __ bind(&do_subtraction); |
| 896 | const int kUnfolds = 3; |
| 897 | // Try a few subtractions of the dividend. |
| 898 | __ mov(scratch, left_reg); |
| 899 | for (int i = 0; i < kUnfolds; i++) { |
| 900 | // Reduce the dividend by the divisor. |
| 901 | __ sub(left_reg, Operand(right_reg)); |
| 902 | // Check if the dividend is less than the divisor. |
| 903 | __ cmp(left_reg, Operand(right_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 904 | __ j(less, &remainder_eq_dividend, Label::kNear); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 905 | } |
| 906 | __ mov(left_reg, scratch); |
| 907 | |
| 908 | // Slow case, using idiv instruction. |
| 909 | __ bind(&slow); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 910 | // Sign extend to edx. |
| 911 | __ cdq(); |
| 912 | |
| 913 | // Check for (0 % -x) that will produce negative zero. |
| 914 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 915 | Label positive_left; |
| 916 | Label done; |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 917 | __ test(left_reg, Operand(left_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 918 | __ j(not_sign, &positive_left, Label::kNear); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 919 | __ idiv(right_reg); |
| 920 | |
| 921 | // Test the remainder for 0, because then the result would be -0. |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 922 | __ test(result_reg, Operand(result_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 923 | __ j(not_zero, &done, Label::kNear); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 924 | |
| 925 | DeoptimizeIf(no_condition, instr->environment()); |
| 926 | __ bind(&positive_left); |
| 927 | __ idiv(right_reg); |
| 928 | __ bind(&done); |
| 929 | } else { |
| 930 | __ idiv(right_reg); |
| 931 | } |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 932 | __ jmp(&done, Label::kNear); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 933 | |
| 934 | __ bind(&remainder_eq_dividend); |
| 935 | __ mov(result_reg, left_reg); |
| 936 | |
| 937 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 938 | } |
| 939 | } |
| 940 | |
| 941 | |
| 942 | void LCodeGen::DoDivI(LDivI* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 943 | LOperand* right = instr->InputAt(1); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 944 | ASSERT(ToRegister(instr->result()).is(eax)); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 945 | ASSERT(ToRegister(instr->InputAt(0)).is(eax)); |
| 946 | ASSERT(!ToRegister(instr->InputAt(1)).is(eax)); |
| 947 | ASSERT(!ToRegister(instr->InputAt(1)).is(edx)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 948 | |
| 949 | Register left_reg = eax; |
| 950 | |
| 951 | // Check for x / 0. |
| 952 | Register right_reg = ToRegister(right); |
| 953 | if (instr->hydrogen()->CheckFlag(HValue::kCanBeDivByZero)) { |
| 954 | __ test(right_reg, ToOperand(right)); |
| 955 | DeoptimizeIf(zero, instr->environment()); |
| 956 | } |
| 957 | |
| 958 | // Check for (0 / -x) that will produce negative zero. |
| 959 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 960 | Label left_not_zero; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 961 | __ test(left_reg, Operand(left_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 962 | __ j(not_zero, &left_not_zero, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 963 | __ test(right_reg, ToOperand(right)); |
| 964 | DeoptimizeIf(sign, instr->environment()); |
| 965 | __ bind(&left_not_zero); |
| 966 | } |
| 967 | |
| 968 | // Check for (-kMinInt / -1). |
| 969 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 970 | Label left_not_min_int; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 971 | __ cmp(left_reg, kMinInt); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 972 | __ j(not_zero, &left_not_min_int, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 973 | __ cmp(right_reg, -1); |
| 974 | DeoptimizeIf(zero, instr->environment()); |
| 975 | __ bind(&left_not_min_int); |
| 976 | } |
| 977 | |
| 978 | // Sign extend to edx. |
| 979 | __ cdq(); |
| 980 | __ idiv(right_reg); |
| 981 | |
| 982 | // Deoptimize if remainder is not 0. |
| 983 | __ test(edx, Operand(edx)); |
| 984 | DeoptimizeIf(not_zero, instr->environment()); |
| 985 | } |
| 986 | |
| 987 | |
| 988 | void LCodeGen::DoMulI(LMulI* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 989 | Register left = ToRegister(instr->InputAt(0)); |
| 990 | LOperand* right = instr->InputAt(1); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 991 | |
| 992 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 993 | __ mov(ToRegister(instr->TempAt(0)), left); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 994 | } |
| 995 | |
| 996 | if (right->IsConstantOperand()) { |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 997 | // Try strength reductions on the multiplication. |
| 998 | // All replacement instructions are at most as long as the imul |
| 999 | // and have better latency. |
| 1000 | int constant = ToInteger32(LConstantOperand::cast(right)); |
| 1001 | if (constant == -1) { |
| 1002 | __ neg(left); |
| 1003 | } else if (constant == 0) { |
| 1004 | __ xor_(left, Operand(left)); |
| 1005 | } else if (constant == 2) { |
| 1006 | __ add(left, Operand(left)); |
| 1007 | } else if (!instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1008 | // If we know that the multiplication can't overflow, it's safe to |
| 1009 | // use instructions that don't set the overflow flag for the |
| 1010 | // multiplication. |
| 1011 | switch (constant) { |
| 1012 | case 1: |
| 1013 | // Do nothing. |
| 1014 | break; |
| 1015 | case 3: |
| 1016 | __ lea(left, Operand(left, left, times_2, 0)); |
| 1017 | break; |
| 1018 | case 4: |
| 1019 | __ shl(left, 2); |
| 1020 | break; |
| 1021 | case 5: |
| 1022 | __ lea(left, Operand(left, left, times_4, 0)); |
| 1023 | break; |
| 1024 | case 8: |
| 1025 | __ shl(left, 3); |
| 1026 | break; |
| 1027 | case 9: |
| 1028 | __ lea(left, Operand(left, left, times_8, 0)); |
| 1029 | break; |
| 1030 | case 16: |
| 1031 | __ shl(left, 4); |
| 1032 | break; |
| 1033 | default: |
| 1034 | __ imul(left, left, constant); |
| 1035 | break; |
| 1036 | } |
| 1037 | } else { |
| 1038 | __ imul(left, left, constant); |
| 1039 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1040 | } else { |
| 1041 | __ imul(left, ToOperand(right)); |
| 1042 | } |
| 1043 | |
| 1044 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1045 | DeoptimizeIf(overflow, instr->environment()); |
| 1046 | } |
| 1047 | |
| 1048 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1049 | // Bail out if the result is supposed to be negative zero. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1050 | Label done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1051 | __ test(left, Operand(left)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1052 | __ j(not_zero, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1053 | if (right->IsConstantOperand()) { |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 1054 | if (ToInteger32(LConstantOperand::cast(right)) <= 0) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1055 | DeoptimizeIf(no_condition, instr->environment()); |
| 1056 | } |
| 1057 | } else { |
| 1058 | // Test the non-zero operand for negative sign. |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1059 | __ or_(ToRegister(instr->TempAt(0)), ToOperand(right)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1060 | DeoptimizeIf(sign, instr->environment()); |
| 1061 | } |
| 1062 | __ bind(&done); |
| 1063 | } |
| 1064 | } |
| 1065 | |
| 1066 | |
| 1067 | void LCodeGen::DoBitI(LBitI* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1068 | LOperand* left = instr->InputAt(0); |
| 1069 | LOperand* right = instr->InputAt(1); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1070 | ASSERT(left->Equals(instr->result())); |
| 1071 | ASSERT(left->IsRegister()); |
| 1072 | |
| 1073 | if (right->IsConstantOperand()) { |
| 1074 | int right_operand = ToInteger32(LConstantOperand::cast(right)); |
| 1075 | switch (instr->op()) { |
| 1076 | case Token::BIT_AND: |
| 1077 | __ and_(ToRegister(left), right_operand); |
| 1078 | break; |
| 1079 | case Token::BIT_OR: |
| 1080 | __ or_(ToRegister(left), right_operand); |
| 1081 | break; |
| 1082 | case Token::BIT_XOR: |
| 1083 | __ xor_(ToRegister(left), right_operand); |
| 1084 | break; |
| 1085 | default: |
| 1086 | UNREACHABLE(); |
| 1087 | break; |
| 1088 | } |
| 1089 | } else { |
| 1090 | switch (instr->op()) { |
| 1091 | case Token::BIT_AND: |
| 1092 | __ and_(ToRegister(left), ToOperand(right)); |
| 1093 | break; |
| 1094 | case Token::BIT_OR: |
| 1095 | __ or_(ToRegister(left), ToOperand(right)); |
| 1096 | break; |
| 1097 | case Token::BIT_XOR: |
| 1098 | __ xor_(ToRegister(left), ToOperand(right)); |
| 1099 | break; |
| 1100 | default: |
| 1101 | UNREACHABLE(); |
| 1102 | break; |
| 1103 | } |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | |
| 1108 | void LCodeGen::DoShiftI(LShiftI* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1109 | LOperand* left = instr->InputAt(0); |
| 1110 | LOperand* right = instr->InputAt(1); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1111 | ASSERT(left->Equals(instr->result())); |
| 1112 | ASSERT(left->IsRegister()); |
| 1113 | if (right->IsRegister()) { |
| 1114 | ASSERT(ToRegister(right).is(ecx)); |
| 1115 | |
| 1116 | switch (instr->op()) { |
| 1117 | case Token::SAR: |
| 1118 | __ sar_cl(ToRegister(left)); |
| 1119 | break; |
| 1120 | case Token::SHR: |
| 1121 | __ shr_cl(ToRegister(left)); |
| 1122 | if (instr->can_deopt()) { |
| 1123 | __ test(ToRegister(left), Immediate(0x80000000)); |
| 1124 | DeoptimizeIf(not_zero, instr->environment()); |
| 1125 | } |
| 1126 | break; |
| 1127 | case Token::SHL: |
| 1128 | __ shl_cl(ToRegister(left)); |
| 1129 | break; |
| 1130 | default: |
| 1131 | UNREACHABLE(); |
| 1132 | break; |
| 1133 | } |
| 1134 | } else { |
| 1135 | int value = ToInteger32(LConstantOperand::cast(right)); |
| 1136 | uint8_t shift_count = static_cast<uint8_t>(value & 0x1F); |
| 1137 | switch (instr->op()) { |
| 1138 | case Token::SAR: |
| 1139 | if (shift_count != 0) { |
| 1140 | __ sar(ToRegister(left), shift_count); |
| 1141 | } |
| 1142 | break; |
| 1143 | case Token::SHR: |
| 1144 | if (shift_count == 0 && instr->can_deopt()) { |
| 1145 | __ test(ToRegister(left), Immediate(0x80000000)); |
| 1146 | DeoptimizeIf(not_zero, instr->environment()); |
| 1147 | } else { |
| 1148 | __ shr(ToRegister(left), shift_count); |
| 1149 | } |
| 1150 | break; |
| 1151 | case Token::SHL: |
| 1152 | if (shift_count != 0) { |
| 1153 | __ shl(ToRegister(left), shift_count); |
| 1154 | } |
| 1155 | break; |
| 1156 | default: |
| 1157 | UNREACHABLE(); |
| 1158 | break; |
| 1159 | } |
| 1160 | } |
| 1161 | } |
| 1162 | |
| 1163 | |
| 1164 | void LCodeGen::DoSubI(LSubI* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1165 | LOperand* left = instr->InputAt(0); |
| 1166 | LOperand* right = instr->InputAt(1); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1167 | ASSERT(left->Equals(instr->result())); |
| 1168 | |
| 1169 | if (right->IsConstantOperand()) { |
| 1170 | __ sub(ToOperand(left), ToImmediate(right)); |
| 1171 | } else { |
| 1172 | __ sub(ToRegister(left), ToOperand(right)); |
| 1173 | } |
| 1174 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1175 | DeoptimizeIf(overflow, instr->environment()); |
| 1176 | } |
| 1177 | } |
| 1178 | |
| 1179 | |
| 1180 | void LCodeGen::DoConstantI(LConstantI* instr) { |
| 1181 | ASSERT(instr->result()->IsRegister()); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 1182 | __ Set(ToRegister(instr->result()), Immediate(instr->value())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1183 | } |
| 1184 | |
| 1185 | |
| 1186 | void LCodeGen::DoConstantD(LConstantD* instr) { |
| 1187 | ASSERT(instr->result()->IsDoubleRegister()); |
| 1188 | XMMRegister res = ToDoubleRegister(instr->result()); |
| 1189 | double v = instr->value(); |
| 1190 | // Use xor to produce +0.0 in a fast and compact way, but avoid to |
| 1191 | // do so if the constant is -0.0. |
| 1192 | if (BitCast<uint64_t, double>(v) == 0) { |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 1193 | __ xorps(res, res); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1194 | } else { |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 1195 | Register temp = ToRegister(instr->TempAt(0)); |
| 1196 | uint64_t int_val = BitCast<uint64_t, double>(v); |
| 1197 | int32_t lower = static_cast<int32_t>(int_val); |
| 1198 | int32_t upper = static_cast<int32_t>(int_val >> (kBitsPerInt)); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1199 | if (CpuFeatures::IsSupported(SSE4_1)) { |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 1200 | CpuFeatures::Scope scope(SSE4_1); |
| 1201 | if (lower != 0) { |
| 1202 | __ Set(temp, Immediate(lower)); |
| 1203 | __ movd(res, Operand(temp)); |
| 1204 | __ Set(temp, Immediate(upper)); |
| 1205 | __ pinsrd(res, Operand(temp), 1); |
| 1206 | } else { |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 1207 | __ xorps(res, res); |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 1208 | __ Set(temp, Immediate(upper)); |
| 1209 | __ pinsrd(res, Operand(temp), 1); |
| 1210 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1211 | } else { |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 1212 | __ Set(temp, Immediate(upper)); |
| 1213 | __ movd(res, Operand(temp)); |
| 1214 | __ psllq(res, 32); |
| 1215 | if (lower != 0) { |
| 1216 | __ Set(temp, Immediate(lower)); |
| 1217 | __ movd(xmm0, Operand(temp)); |
| 1218 | __ por(res, xmm0); |
| 1219 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1220 | } |
| 1221 | } |
| 1222 | } |
| 1223 | |
| 1224 | |
| 1225 | void LCodeGen::DoConstantT(LConstantT* instr) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1226 | Register reg = ToRegister(instr->result()); |
| 1227 | Handle<Object> handle = instr->value(); |
| 1228 | if (handle->IsHeapObject()) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 1229 | __ LoadHeapObject(reg, Handle<HeapObject>::cast(handle)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1230 | } else { |
| 1231 | __ Set(reg, Immediate(handle)); |
| 1232 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1233 | } |
| 1234 | |
| 1235 | |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 1236 | void LCodeGen::DoJSArrayLength(LJSArrayLength* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1237 | Register result = ToRegister(instr->result()); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1238 | Register array = ToRegister(instr->InputAt(0)); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 1239 | __ mov(result, FieldOperand(array, JSArray::kLengthOffset)); |
| 1240 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1241 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1242 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 1243 | void LCodeGen::DoFixedArrayBaseLength( |
| 1244 | LFixedArrayBaseLength* instr) { |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 1245 | Register result = ToRegister(instr->result()); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1246 | Register array = ToRegister(instr->InputAt(0)); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 1247 | __ mov(result, FieldOperand(array, FixedArrayBase::kLengthOffset)); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1248 | } |
| 1249 | |
| 1250 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1251 | void LCodeGen::DoElementsKind(LElementsKind* instr) { |
| 1252 | Register result = ToRegister(instr->result()); |
| 1253 | Register input = ToRegister(instr->InputAt(0)); |
| 1254 | |
| 1255 | // Load map into |result|. |
| 1256 | __ mov(result, FieldOperand(input, HeapObject::kMapOffset)); |
| 1257 | // Load the map's "bit field 2" into |result|. We only need the first byte, |
| 1258 | // but the following masking takes care of that anyway. |
| 1259 | __ mov(result, FieldOperand(result, Map::kBitField2Offset)); |
| 1260 | // Retrieve elements_kind from bit field 2. |
| 1261 | __ and_(result, Map::kElementsKindMask); |
| 1262 | __ shr(result, Map::kElementsKindShift); |
| 1263 | } |
| 1264 | |
| 1265 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1266 | void LCodeGen::DoValueOf(LValueOf* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1267 | Register input = ToRegister(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1268 | Register result = ToRegister(instr->result()); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1269 | Register map = ToRegister(instr->TempAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1270 | ASSERT(input.is(result)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1271 | Label done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1272 | // If the object is a smi return the object. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1273 | __ JumpIfSmi(input, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1274 | |
| 1275 | // If the object is not a value type, return the object. |
| 1276 | __ CmpObjectType(input, JS_VALUE_TYPE, map); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1277 | __ j(not_equal, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1278 | __ mov(result, FieldOperand(input, JSValue::kValueOffset)); |
| 1279 | |
| 1280 | __ bind(&done); |
| 1281 | } |
| 1282 | |
| 1283 | |
| 1284 | void LCodeGen::DoBitNotI(LBitNotI* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1285 | LOperand* input = instr->InputAt(0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1286 | ASSERT(input->Equals(instr->result())); |
| 1287 | __ not_(ToRegister(input)); |
| 1288 | } |
| 1289 | |
| 1290 | |
| 1291 | void LCodeGen::DoThrow(LThrow* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 1292 | __ push(ToOperand(instr->value())); |
| 1293 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 1294 | CallRuntime(Runtime::kThrow, 1, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1295 | |
| 1296 | if (FLAG_debug_code) { |
| 1297 | Comment("Unreachable code."); |
| 1298 | __ int3(); |
| 1299 | } |
| 1300 | } |
| 1301 | |
| 1302 | |
| 1303 | void LCodeGen::DoAddI(LAddI* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1304 | LOperand* left = instr->InputAt(0); |
| 1305 | LOperand* right = instr->InputAt(1); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1306 | ASSERT(left->Equals(instr->result())); |
| 1307 | |
| 1308 | if (right->IsConstantOperand()) { |
| 1309 | __ add(ToOperand(left), ToImmediate(right)); |
| 1310 | } else { |
| 1311 | __ add(ToRegister(left), ToOperand(right)); |
| 1312 | } |
| 1313 | |
| 1314 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1315 | DeoptimizeIf(overflow, instr->environment()); |
| 1316 | } |
| 1317 | } |
| 1318 | |
| 1319 | |
| 1320 | void LCodeGen::DoArithmeticD(LArithmeticD* instr) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1321 | XMMRegister left = ToDoubleRegister(instr->InputAt(0)); |
| 1322 | XMMRegister right = ToDoubleRegister(instr->InputAt(1)); |
| 1323 | XMMRegister result = ToDoubleRegister(instr->result()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1324 | // Modulo uses a fixed result register. |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1325 | ASSERT(instr->op() == Token::MOD || left.is(result)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1326 | switch (instr->op()) { |
| 1327 | case Token::ADD: |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1328 | __ addsd(left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1329 | break; |
| 1330 | case Token::SUB: |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1331 | __ subsd(left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1332 | break; |
| 1333 | case Token::MUL: |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1334 | __ mulsd(left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1335 | break; |
| 1336 | case Token::DIV: |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1337 | __ divsd(left, right); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1338 | break; |
| 1339 | case Token::MOD: { |
| 1340 | // Pass two doubles as arguments on the stack. |
| 1341 | __ PrepareCallCFunction(4, eax); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1342 | __ movdbl(Operand(esp, 0 * kDoubleSize), left); |
| 1343 | __ movdbl(Operand(esp, 1 * kDoubleSize), right); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1344 | __ CallCFunction( |
| 1345 | ExternalReference::double_fp_operation(Token::MOD, isolate()), |
| 1346 | 4); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1347 | |
| 1348 | // Return value is in st(0) on ia32. |
| 1349 | // Store it into the (fixed) result register. |
| 1350 | __ sub(Operand(esp), Immediate(kDoubleSize)); |
| 1351 | __ fstp_d(Operand(esp, 0)); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1352 | __ movdbl(result, Operand(esp, 0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1353 | __ add(Operand(esp), Immediate(kDoubleSize)); |
| 1354 | break; |
| 1355 | } |
| 1356 | default: |
| 1357 | UNREACHABLE(); |
| 1358 | break; |
| 1359 | } |
| 1360 | } |
| 1361 | |
| 1362 | |
| 1363 | void LCodeGen::DoArithmeticT(LArithmeticT* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 1364 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 1365 | ASSERT(ToRegister(instr->left()).is(edx)); |
| 1366 | ASSERT(ToRegister(instr->right()).is(eax)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1367 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 1368 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1369 | BinaryOpStub stub(instr->op(), NO_OVERWRITE); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 1370 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 1371 | __ nop(); // Signals no inlined code. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1372 | } |
| 1373 | |
| 1374 | |
| 1375 | int LCodeGen::GetNextEmittedBlock(int block) { |
| 1376 | for (int i = block + 1; i < graph()->blocks()->length(); ++i) { |
| 1377 | LLabel* label = chunk_->GetLabel(i); |
| 1378 | if (!label->HasReplacement()) return i; |
| 1379 | } |
| 1380 | return -1; |
| 1381 | } |
| 1382 | |
| 1383 | |
| 1384 | void LCodeGen::EmitBranch(int left_block, int right_block, Condition cc) { |
| 1385 | int next_block = GetNextEmittedBlock(current_block_); |
| 1386 | right_block = chunk_->LookupDestination(right_block); |
| 1387 | left_block = chunk_->LookupDestination(left_block); |
| 1388 | |
| 1389 | if (right_block == left_block) { |
| 1390 | EmitGoto(left_block); |
| 1391 | } else if (left_block == next_block) { |
| 1392 | __ j(NegateCondition(cc), chunk_->GetAssemblyLabel(right_block)); |
| 1393 | } else if (right_block == next_block) { |
| 1394 | __ j(cc, chunk_->GetAssemblyLabel(left_block)); |
| 1395 | } else { |
| 1396 | __ j(cc, chunk_->GetAssemblyLabel(left_block)); |
| 1397 | __ jmp(chunk_->GetAssemblyLabel(right_block)); |
| 1398 | } |
| 1399 | } |
| 1400 | |
| 1401 | |
| 1402 | void LCodeGen::DoBranch(LBranch* instr) { |
| 1403 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1404 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1405 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 1406 | Representation r = instr->hydrogen()->value()->representation(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1407 | if (r.IsInteger32()) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1408 | Register reg = ToRegister(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1409 | __ test(reg, Operand(reg)); |
| 1410 | EmitBranch(true_block, false_block, not_zero); |
| 1411 | } else if (r.IsDouble()) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1412 | XMMRegister reg = ToDoubleRegister(instr->InputAt(0)); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 1413 | __ xorps(xmm0, xmm0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1414 | __ ucomisd(reg, xmm0); |
| 1415 | EmitBranch(true_block, false_block, not_equal); |
| 1416 | } else { |
| 1417 | ASSERT(r.IsTagged()); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1418 | Register reg = ToRegister(instr->InputAt(0)); |
lrn@chromium.org | d4e9e22 | 2011-08-03 12:01:58 +0000 | [diff] [blame] | 1419 | HType type = instr->hydrogen()->value()->type(); |
| 1420 | if (type.IsBoolean()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1421 | __ cmp(reg, factory()->true_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1422 | EmitBranch(true_block, false_block, equal); |
lrn@chromium.org | d4e9e22 | 2011-08-03 12:01:58 +0000 | [diff] [blame] | 1423 | } else if (type.IsSmi()) { |
| 1424 | __ test(reg, Operand(reg)); |
| 1425 | EmitBranch(true_block, false_block, not_equal); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1426 | } else { |
| 1427 | Label* true_label = chunk_->GetAssemblyLabel(true_block); |
| 1428 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 1429 | |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1430 | ToBooleanStub::Types expected = instr->hydrogen()->expected_input_types(); |
| 1431 | // Avoid deopts in the case where we've never executed this path before. |
| 1432 | if (expected.IsEmpty()) expected = ToBooleanStub::all_types(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1433 | |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1434 | if (expected.Contains(ToBooleanStub::UNDEFINED)) { |
| 1435 | // undefined -> false. |
| 1436 | __ cmp(reg, factory()->undefined_value()); |
| 1437 | __ j(equal, false_label); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1438 | } |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1439 | if (expected.Contains(ToBooleanStub::BOOLEAN)) { |
| 1440 | // true -> true. |
| 1441 | __ cmp(reg, factory()->true_value()); |
| 1442 | __ j(equal, true_label); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1443 | // false -> false. |
| 1444 | __ cmp(reg, factory()->false_value()); |
| 1445 | __ j(equal, false_label); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1446 | } |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1447 | if (expected.Contains(ToBooleanStub::NULL_TYPE)) { |
| 1448 | // 'null' -> false. |
| 1449 | __ cmp(reg, factory()->null_value()); |
| 1450 | __ j(equal, false_label); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1451 | } |
| 1452 | |
| 1453 | if (expected.Contains(ToBooleanStub::SMI)) { |
| 1454 | // Smis: 0 -> false, all other -> true. |
| 1455 | __ test(reg, Operand(reg)); |
| 1456 | __ j(equal, false_label); |
| 1457 | __ JumpIfSmi(reg, true_label); |
| 1458 | } else if (expected.NeedsMap()) { |
| 1459 | // If we need a map later and have a Smi -> deopt. |
| 1460 | __ test(reg, Immediate(kSmiTagMask)); |
| 1461 | DeoptimizeIf(zero, instr->environment()); |
| 1462 | } |
| 1463 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 1464 | Register map = no_reg; // Keep the compiler happy. |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1465 | if (expected.NeedsMap()) { |
| 1466 | map = ToRegister(instr->TempAt(0)); |
| 1467 | ASSERT(!map.is(reg)); |
| 1468 | __ mov(map, FieldOperand(reg, HeapObject::kMapOffset)); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 1469 | |
| 1470 | if (expected.CanBeUndetectable()) { |
| 1471 | // Undetectable -> false. |
| 1472 | __ test_b(FieldOperand(map, Map::kBitFieldOffset), |
| 1473 | 1 << Map::kIsUndetectable); |
| 1474 | __ j(not_zero, false_label); |
| 1475 | } |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1476 | } |
| 1477 | |
| 1478 | if (expected.Contains(ToBooleanStub::SPEC_OBJECT)) { |
| 1479 | // spec object -> true. |
| 1480 | __ CmpInstanceType(map, FIRST_SPEC_OBJECT_TYPE); |
| 1481 | __ j(above_equal, true_label); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1482 | } |
| 1483 | |
| 1484 | if (expected.Contains(ToBooleanStub::STRING)) { |
| 1485 | // String value -> false iff empty. |
| 1486 | Label not_string; |
| 1487 | __ CmpInstanceType(map, FIRST_NONSTRING_TYPE); |
| 1488 | __ j(above_equal, ¬_string, Label::kNear); |
| 1489 | __ cmp(FieldOperand(reg, String::kLengthOffset), Immediate(0)); |
| 1490 | __ j(not_zero, true_label); |
| 1491 | __ jmp(false_label); |
| 1492 | __ bind(¬_string); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1493 | } |
| 1494 | |
| 1495 | if (expected.Contains(ToBooleanStub::HEAP_NUMBER)) { |
| 1496 | // heap number -> false iff +0, -0, or NaN. |
| 1497 | Label not_heap_number; |
| 1498 | __ cmp(FieldOperand(reg, HeapObject::kMapOffset), |
| 1499 | factory()->heap_number_map()); |
| 1500 | __ j(not_equal, ¬_heap_number, Label::kNear); |
| 1501 | __ fldz(); |
| 1502 | __ fld_d(FieldOperand(reg, HeapNumber::kValueOffset)); |
| 1503 | __ FCmp(); |
| 1504 | __ j(zero, false_label); |
| 1505 | __ jmp(true_label); |
| 1506 | __ bind(¬_heap_number); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 1507 | } |
| 1508 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 1509 | // We've seen something for the first time -> deopt. |
| 1510 | DeoptimizeIf(no_condition, instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1511 | } |
| 1512 | } |
| 1513 | } |
| 1514 | |
| 1515 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 1516 | void LCodeGen::EmitGoto(int block) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1517 | block = chunk_->LookupDestination(block); |
| 1518 | int next_block = GetNextEmittedBlock(current_block_); |
| 1519 | if (block != next_block) { |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 1520 | __ jmp(chunk_->GetAssemblyLabel(block)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1521 | } |
| 1522 | } |
| 1523 | |
| 1524 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1525 | void LCodeGen::DoGoto(LGoto* instr) { |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 1526 | EmitGoto(instr->block_id()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1527 | } |
| 1528 | |
| 1529 | |
| 1530 | Condition LCodeGen::TokenToCondition(Token::Value op, bool is_unsigned) { |
| 1531 | Condition cond = no_condition; |
| 1532 | switch (op) { |
| 1533 | case Token::EQ: |
| 1534 | case Token::EQ_STRICT: |
| 1535 | cond = equal; |
| 1536 | break; |
| 1537 | case Token::LT: |
| 1538 | cond = is_unsigned ? below : less; |
| 1539 | break; |
| 1540 | case Token::GT: |
| 1541 | cond = is_unsigned ? above : greater; |
| 1542 | break; |
| 1543 | case Token::LTE: |
| 1544 | cond = is_unsigned ? below_equal : less_equal; |
| 1545 | break; |
| 1546 | case Token::GTE: |
| 1547 | cond = is_unsigned ? above_equal : greater_equal; |
| 1548 | break; |
| 1549 | case Token::IN: |
| 1550 | case Token::INSTANCEOF: |
| 1551 | default: |
| 1552 | UNREACHABLE(); |
| 1553 | } |
| 1554 | return cond; |
| 1555 | } |
| 1556 | |
| 1557 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1558 | void LCodeGen::DoCmpIDAndBranch(LCmpIDAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1559 | LOperand* left = instr->InputAt(0); |
| 1560 | LOperand* right = instr->InputAt(1); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1561 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1562 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1563 | Condition cc = TokenToCondition(instr->op(), instr->is_double()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1564 | |
| 1565 | if (left->IsConstantOperand() && right->IsConstantOperand()) { |
| 1566 | // We can statically evaluate the comparison. |
| 1567 | double left_val = ToDouble(LConstantOperand::cast(left)); |
| 1568 | double right_val = ToDouble(LConstantOperand::cast(right)); |
| 1569 | int next_block = |
| 1570 | EvalComparison(instr->op(), left_val, right_val) ? true_block |
| 1571 | : false_block; |
| 1572 | EmitGoto(next_block); |
| 1573 | } else { |
| 1574 | if (instr->is_double()) { |
| 1575 | // Don't base result on EFLAGS when a NaN is involved. Instead |
| 1576 | // jump to the false block. |
| 1577 | __ ucomisd(ToDoubleRegister(left), ToDoubleRegister(right)); |
| 1578 | __ j(parity_even, chunk_->GetAssemblyLabel(false_block)); |
| 1579 | } else { |
| 1580 | if (right->IsConstantOperand()) { |
| 1581 | __ cmp(ToRegister(left), ToImmediate(right)); |
| 1582 | } else if (left->IsConstantOperand()) { |
| 1583 | __ cmp(ToOperand(right), ToImmediate(left)); |
| 1584 | // We transposed the operands. Reverse the condition. |
| 1585 | cc = ReverseCondition(cc); |
| 1586 | } else { |
| 1587 | __ cmp(ToRegister(left), ToOperand(right)); |
| 1588 | } |
| 1589 | } |
| 1590 | EmitBranch(true_block, false_block, cc); |
| 1591 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1592 | } |
| 1593 | |
| 1594 | |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 1595 | void LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) { |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 1596 | Register left = ToRegister(instr->InputAt(0)); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 1597 | Operand right = ToOperand(instr->InputAt(1)); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 1598 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1599 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1600 | |
| 1601 | __ cmp(left, Operand(right)); |
| 1602 | EmitBranch(true_block, false_block, equal); |
| 1603 | } |
| 1604 | |
| 1605 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1606 | void LCodeGen::DoCmpConstantEqAndBranch(LCmpConstantEqAndBranch* instr) { |
| 1607 | Register left = ToRegister(instr->InputAt(0)); |
| 1608 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1609 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1610 | |
| 1611 | __ cmp(left, instr->hydrogen()->right()); |
| 1612 | EmitBranch(true_block, false_block, equal); |
| 1613 | } |
| 1614 | |
| 1615 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1616 | void LCodeGen::DoIsNilAndBranch(LIsNilAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1617 | Register reg = ToRegister(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1618 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1619 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1620 | // If the expression is known to be untagged or a smi, then it's definitely |
| 1621 | // not null, and it can't be a an undetectable object. |
| 1622 | if (instr->hydrogen()->representation().IsSpecialization() || |
| 1623 | instr->hydrogen()->type().IsSmi()) { |
| 1624 | EmitGoto(false_block); |
| 1625 | return; |
| 1626 | } |
| 1627 | |
| 1628 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1629 | Handle<Object> nil_value = instr->nil() == kNullValue ? |
| 1630 | factory()->null_value() : |
| 1631 | factory()->undefined_value(); |
| 1632 | __ cmp(reg, nil_value); |
| 1633 | if (instr->kind() == kStrictEquality) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1634 | EmitBranch(true_block, false_block, equal); |
| 1635 | } else { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1636 | Handle<Object> other_nil_value = instr->nil() == kNullValue ? |
| 1637 | factory()->undefined_value() : |
| 1638 | factory()->null_value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1639 | Label* true_label = chunk_->GetAssemblyLabel(true_block); |
| 1640 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 1641 | __ j(equal, true_label); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1642 | __ cmp(reg, other_nil_value); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1643 | __ j(equal, true_label); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1644 | __ JumpIfSmi(reg, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1645 | // Check for undetectable objects by looking in the bit field in |
| 1646 | // the map. The object has already been smi checked. |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1647 | Register scratch = ToRegister(instr->TempAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1648 | __ mov(scratch, FieldOperand(reg, HeapObject::kMapOffset)); |
| 1649 | __ movzx_b(scratch, FieldOperand(scratch, Map::kBitFieldOffset)); |
| 1650 | __ test(scratch, Immediate(1 << Map::kIsUndetectable)); |
| 1651 | EmitBranch(true_block, false_block, not_zero); |
| 1652 | } |
| 1653 | } |
| 1654 | |
| 1655 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1656 | Condition LCodeGen::EmitIsObject(Register input, |
| 1657 | Register temp1, |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1658 | Label* is_not_object, |
| 1659 | Label* is_object) { |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1660 | __ JumpIfSmi(input, is_not_object); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1661 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1662 | __ cmp(input, isolate()->factory()->null_value()); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1663 | __ j(equal, is_object); |
| 1664 | |
| 1665 | __ mov(temp1, FieldOperand(input, HeapObject::kMapOffset)); |
| 1666 | // Undetectable objects behave like undefined. |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1667 | __ test_b(FieldOperand(temp1, Map::kBitFieldOffset), |
| 1668 | 1 << Map::kIsUndetectable); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1669 | __ j(not_zero, is_not_object); |
| 1670 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1671 | __ movzx_b(temp1, FieldOperand(temp1, Map::kInstanceTypeOffset)); |
| 1672 | __ cmp(temp1, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1673 | __ j(below, is_not_object); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1674 | __ cmp(temp1, LAST_NONCALLABLE_SPEC_OBJECT_TYPE); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1675 | return below_equal; |
| 1676 | } |
| 1677 | |
| 1678 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1679 | void LCodeGen::DoIsObjectAndBranch(LIsObjectAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1680 | Register reg = ToRegister(instr->InputAt(0)); |
| 1681 | Register temp = ToRegister(instr->TempAt(0)); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1682 | |
| 1683 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1684 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1685 | Label* true_label = chunk_->GetAssemblyLabel(true_block); |
| 1686 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 1687 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 1688 | Condition true_cond = EmitIsObject(reg, temp, false_label, true_label); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1689 | |
| 1690 | EmitBranch(true_block, false_block, true_cond); |
| 1691 | } |
| 1692 | |
| 1693 | |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 1694 | Condition LCodeGen::EmitIsString(Register input, |
| 1695 | Register temp1, |
| 1696 | Label* is_not_string) { |
| 1697 | __ JumpIfSmi(input, is_not_string); |
| 1698 | |
| 1699 | Condition cond = masm_->IsObjectStringType(input, temp1, temp1); |
| 1700 | |
| 1701 | return cond; |
| 1702 | } |
| 1703 | |
| 1704 | |
| 1705 | void LCodeGen::DoIsStringAndBranch(LIsStringAndBranch* instr) { |
| 1706 | Register reg = ToRegister(instr->InputAt(0)); |
| 1707 | Register temp = ToRegister(instr->TempAt(0)); |
| 1708 | |
| 1709 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1710 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1711 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 1712 | |
| 1713 | Condition true_cond = EmitIsString(reg, temp, false_label); |
| 1714 | |
| 1715 | EmitBranch(true_block, false_block, true_cond); |
| 1716 | } |
| 1717 | |
| 1718 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1719 | void LCodeGen::DoIsSmiAndBranch(LIsSmiAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1720 | Operand input = ToOperand(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1721 | |
| 1722 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1723 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1724 | |
| 1725 | __ test(input, Immediate(kSmiTagMask)); |
| 1726 | EmitBranch(true_block, false_block, zero); |
| 1727 | } |
| 1728 | |
| 1729 | |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 1730 | void LCodeGen::DoIsUndetectableAndBranch(LIsUndetectableAndBranch* instr) { |
| 1731 | Register input = ToRegister(instr->InputAt(0)); |
| 1732 | Register temp = ToRegister(instr->TempAt(0)); |
| 1733 | |
| 1734 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1735 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1736 | |
| 1737 | STATIC_ASSERT(kSmiTag == 0); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1738 | __ JumpIfSmi(input, chunk_->GetAssemblyLabel(false_block)); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 1739 | __ mov(temp, FieldOperand(input, HeapObject::kMapOffset)); |
| 1740 | __ test_b(FieldOperand(temp, Map::kBitFieldOffset), |
| 1741 | 1 << Map::kIsUndetectable); |
| 1742 | EmitBranch(true_block, false_block, not_zero); |
| 1743 | } |
| 1744 | |
| 1745 | |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 1746 | static Condition ComputeCompareCondition(Token::Value op) { |
| 1747 | switch (op) { |
| 1748 | case Token::EQ_STRICT: |
| 1749 | case Token::EQ: |
| 1750 | return equal; |
| 1751 | case Token::LT: |
| 1752 | return less; |
| 1753 | case Token::GT: |
| 1754 | return greater; |
| 1755 | case Token::LTE: |
| 1756 | return less_equal; |
| 1757 | case Token::GTE: |
| 1758 | return greater_equal; |
| 1759 | default: |
| 1760 | UNREACHABLE(); |
| 1761 | return no_condition; |
| 1762 | } |
| 1763 | } |
| 1764 | |
| 1765 | |
| 1766 | void LCodeGen::DoStringCompareAndBranch(LStringCompareAndBranch* instr) { |
| 1767 | Token::Value op = instr->op(); |
| 1768 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1769 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1770 | |
| 1771 | Handle<Code> ic = CompareIC::GetUninitialized(op); |
| 1772 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
| 1773 | |
| 1774 | Condition condition = ComputeCompareCondition(op); |
| 1775 | __ test(eax, Operand(eax)); |
| 1776 | |
| 1777 | EmitBranch(true_block, false_block, condition); |
| 1778 | } |
| 1779 | |
| 1780 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 1781 | static InstanceType TestType(HHasInstanceTypeAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1782 | InstanceType from = instr->from(); |
| 1783 | InstanceType to = instr->to(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1784 | if (from == FIRST_TYPE) return to; |
| 1785 | ASSERT(from == to || to == LAST_TYPE); |
| 1786 | return from; |
| 1787 | } |
| 1788 | |
| 1789 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 1790 | static Condition BranchCondition(HHasInstanceTypeAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1791 | InstanceType from = instr->from(); |
| 1792 | InstanceType to = instr->to(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1793 | if (from == to) return equal; |
| 1794 | if (to == LAST_TYPE) return above_equal; |
| 1795 | if (from == FIRST_TYPE) return below_equal; |
| 1796 | UNREACHABLE(); |
| 1797 | return equal; |
| 1798 | } |
| 1799 | |
| 1800 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1801 | void LCodeGen::DoHasInstanceTypeAndBranch(LHasInstanceTypeAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1802 | Register input = ToRegister(instr->InputAt(0)); |
| 1803 | Register temp = ToRegister(instr->TempAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1804 | |
| 1805 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1806 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1807 | |
| 1808 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 1809 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1810 | __ JumpIfSmi(input, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1811 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1812 | __ CmpObjectType(input, TestType(instr->hydrogen()), temp); |
| 1813 | EmitBranch(true_block, false_block, BranchCondition(instr->hydrogen())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1814 | } |
| 1815 | |
| 1816 | |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1817 | void LCodeGen::DoGetCachedArrayIndex(LGetCachedArrayIndex* instr) { |
| 1818 | Register input = ToRegister(instr->InputAt(0)); |
| 1819 | Register result = ToRegister(instr->result()); |
| 1820 | |
| 1821 | if (FLAG_debug_code) { |
| 1822 | __ AbortIfNotString(input); |
| 1823 | } |
| 1824 | |
| 1825 | __ mov(result, FieldOperand(input, String::kHashFieldOffset)); |
| 1826 | __ IndexFromHash(result, result); |
| 1827 | } |
| 1828 | |
| 1829 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1830 | void LCodeGen::DoHasCachedArrayIndexAndBranch( |
| 1831 | LHasCachedArrayIndexAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1832 | Register input = ToRegister(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1833 | |
| 1834 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1835 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1836 | |
| 1837 | __ test(FieldOperand(input, String::kHashFieldOffset), |
| 1838 | Immediate(String::kContainsCachedArrayIndexMask)); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1839 | EmitBranch(true_block, false_block, equal); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1840 | } |
| 1841 | |
| 1842 | |
| 1843 | // Branches to a label or falls through with the answer in the z flag. Trashes |
| 1844 | // the temp registers, but not the input. Only input and temp2 may alias. |
| 1845 | void LCodeGen::EmitClassOfTest(Label* is_true, |
| 1846 | Label* is_false, |
| 1847 | Handle<String>class_name, |
| 1848 | Register input, |
| 1849 | Register temp, |
| 1850 | Register temp2) { |
| 1851 | ASSERT(!input.is(temp)); |
| 1852 | ASSERT(!temp.is(temp2)); // But input and temp2 may be the same register. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1853 | __ JumpIfSmi(input, is_false); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1854 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1855 | if (class_name->IsEqualTo(CStrVector("Function"))) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1856 | // Assuming the following assertions, we can use the same compares to test |
| 1857 | // for both being a function type and being in the object type range. |
| 1858 | STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
| 1859 | STATIC_ASSERT(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE == |
| 1860 | FIRST_SPEC_OBJECT_TYPE + 1); |
| 1861 | STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == |
| 1862 | LAST_SPEC_OBJECT_TYPE - 1); |
| 1863 | STATIC_ASSERT(LAST_SPEC_OBJECT_TYPE == LAST_TYPE); |
| 1864 | __ CmpObjectType(input, FIRST_SPEC_OBJECT_TYPE, temp); |
| 1865 | __ j(below, is_false); |
| 1866 | __ j(equal, is_true); |
| 1867 | __ CmpInstanceType(temp, LAST_SPEC_OBJECT_TYPE); |
| 1868 | __ j(equal, is_true); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1869 | } else { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1870 | // Faster code path to avoid two compares: subtract lower bound from the |
| 1871 | // actual type and do a signed compare with the width of the type range. |
| 1872 | __ mov(temp, FieldOperand(input, HeapObject::kMapOffset)); |
| 1873 | __ mov(temp2, FieldOperand(temp, Map::kInstanceTypeOffset)); |
| 1874 | __ sub(Operand(temp2), Immediate(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
| 1875 | __ cmpb(Operand(temp2), |
| 1876 | static_cast<int8_t>(LAST_NONCALLABLE_SPEC_OBJECT_TYPE - |
| 1877 | FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
| 1878 | __ j(above, is_false); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1879 | } |
| 1880 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1881 | // Now we are in the FIRST-LAST_NONCALLABLE_SPEC_OBJECT_TYPE range. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1882 | // Check if the constructor in the map is a function. |
| 1883 | __ mov(temp, FieldOperand(temp, Map::kConstructorOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1884 | // Objects with a non-function constructor have class 'Object'. |
| 1885 | __ CmpObjectType(temp, JS_FUNCTION_TYPE, temp2); |
| 1886 | if (class_name->IsEqualTo(CStrVector("Object"))) { |
| 1887 | __ j(not_equal, is_true); |
| 1888 | } else { |
| 1889 | __ j(not_equal, is_false); |
| 1890 | } |
| 1891 | |
| 1892 | // temp now contains the constructor function. Grab the |
| 1893 | // instance class name from there. |
| 1894 | __ mov(temp, FieldOperand(temp, JSFunction::kSharedFunctionInfoOffset)); |
| 1895 | __ mov(temp, FieldOperand(temp, |
| 1896 | SharedFunctionInfo::kInstanceClassNameOffset)); |
| 1897 | // The class name we are testing against is a symbol because it's a literal. |
| 1898 | // The name in the constructor is a symbol because of the way the context is |
| 1899 | // booted. This routine isn't expected to work for random API-created |
| 1900 | // classes and it doesn't have to because you can't access it with natives |
| 1901 | // syntax. Since both sides are symbols it is sufficient to use an identity |
| 1902 | // comparison. |
| 1903 | __ cmp(temp, class_name); |
| 1904 | // End with the answer in the z flag. |
| 1905 | } |
| 1906 | |
| 1907 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1908 | void LCodeGen::DoClassOfTestAndBranch(LClassOfTestAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1909 | Register input = ToRegister(instr->InputAt(0)); |
| 1910 | Register temp = ToRegister(instr->TempAt(0)); |
| 1911 | Register temp2 = ToRegister(instr->TempAt(1)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1912 | if (input.is(temp)) { |
| 1913 | // Swap. |
| 1914 | Register swapper = temp; |
| 1915 | temp = temp2; |
| 1916 | temp2 = swapper; |
| 1917 | } |
| 1918 | Handle<String> class_name = instr->hydrogen()->class_name(); |
| 1919 | |
| 1920 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 1921 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 1922 | |
| 1923 | Label* true_label = chunk_->GetAssemblyLabel(true_block); |
| 1924 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 1925 | |
| 1926 | EmitClassOfTest(true_label, false_label, class_name, input, temp, temp2); |
| 1927 | |
| 1928 | EmitBranch(true_block, false_block, equal); |
| 1929 | } |
| 1930 | |
| 1931 | |
| 1932 | void LCodeGen::DoCmpMapAndBranch(LCmpMapAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1933 | Register reg = ToRegister(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1934 | int true_block = instr->true_block_id(); |
| 1935 | int false_block = instr->false_block_id(); |
| 1936 | |
| 1937 | __ cmp(FieldOperand(reg, HeapObject::kMapOffset), instr->map()); |
| 1938 | EmitBranch(true_block, false_block, equal); |
| 1939 | } |
| 1940 | |
| 1941 | |
| 1942 | void LCodeGen::DoInstanceOf(LInstanceOf* instr) { |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 1943 | // Object and function are in fixed registers defined by the stub. |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1944 | ASSERT(ToRegister(instr->context()).is(esi)); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1945 | InstanceofStub stub(InstanceofStub::kArgsInRegisters); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 1946 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1947 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1948 | Label true_value, done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1949 | __ test(eax, Operand(eax)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1950 | __ j(zero, &true_value, Label::kNear); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1951 | __ mov(ToRegister(instr->result()), factory()->false_value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1952 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1953 | __ bind(&true_value); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1954 | __ mov(ToRegister(instr->result()), factory()->true_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1955 | __ bind(&done); |
| 1956 | } |
| 1957 | |
| 1958 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 1959 | void LCodeGen::DoInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr) { |
| 1960 | class DeferredInstanceOfKnownGlobal: public LDeferredCode { |
| 1961 | public: |
| 1962 | DeferredInstanceOfKnownGlobal(LCodeGen* codegen, |
| 1963 | LInstanceOfKnownGlobal* instr) |
| 1964 | : LDeferredCode(codegen), instr_(instr) { } |
| 1965 | virtual void Generate() { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1966 | codegen()->DoDeferredInstanceOfKnownGlobal(instr_, &map_check_); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 1967 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1968 | virtual LInstruction* instr() { return instr_; } |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 1969 | Label* map_check() { return &map_check_; } |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 1970 | private: |
| 1971 | LInstanceOfKnownGlobal* instr_; |
| 1972 | Label map_check_; |
| 1973 | }; |
| 1974 | |
| 1975 | DeferredInstanceOfKnownGlobal* deferred; |
| 1976 | deferred = new DeferredInstanceOfKnownGlobal(this, instr); |
| 1977 | |
| 1978 | Label done, false_result; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 1979 | Register object = ToRegister(instr->InputAt(1)); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1980 | Register temp = ToRegister(instr->TempAt(0)); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 1981 | |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 1982 | // A Smi is not an instance of anything. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1983 | __ JumpIfSmi(object, &false_result); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 1984 | |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 1985 | // This is the inlined call site instanceof cache. The two occurences of the |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 1986 | // hole value will be patched to the last map/result pair generated by the |
| 1987 | // instanceof stub. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1988 | Label cache_miss; |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1989 | Register map = ToRegister(instr->TempAt(0)); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 1990 | __ mov(map, FieldOperand(object, HeapObject::kMapOffset)); |
| 1991 | __ bind(deferred->map_check()); // Label for calculating code patching. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1992 | __ cmp(map, factory()->the_hole_value()); // Patched to cached map. |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 1993 | __ j(not_equal, &cache_miss, Label::kNear); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1994 | __ mov(eax, factory()->the_hole_value()); // Patched to either true or false. |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 1995 | __ jmp(&done); |
| 1996 | |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 1997 | // The inlined call site cache did not match. Check for null and string |
| 1998 | // before calling the deferred code. |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 1999 | __ bind(&cache_miss); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 2000 | // Null is not an instance of anything. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2001 | __ cmp(object, factory()->null_value()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2002 | __ j(equal, &false_result); |
| 2003 | |
| 2004 | // String values are not instances of anything. |
| 2005 | Condition is_string = masm_->IsObjectStringType(object, temp, temp); |
| 2006 | __ j(is_string, &false_result); |
| 2007 | |
| 2008 | // Go to the deferred code. |
| 2009 | __ jmp(deferred->entry()); |
| 2010 | |
| 2011 | __ bind(&false_result); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2012 | __ mov(ToRegister(instr->result()), factory()->false_value()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2013 | |
| 2014 | // Here result has either true or false. Deferred code also produces true or |
| 2015 | // false object. |
| 2016 | __ bind(deferred->exit()); |
| 2017 | __ bind(&done); |
| 2018 | } |
| 2019 | |
| 2020 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 2021 | void LCodeGen::DoDeferredInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr, |
| 2022 | Label* map_check) { |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2023 | PushSafepointRegistersScope scope(this); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2024 | |
| 2025 | InstanceofStub::Flags flags = InstanceofStub::kNoFlags; |
| 2026 | flags = static_cast<InstanceofStub::Flags>( |
| 2027 | flags | InstanceofStub::kArgsInRegisters); |
| 2028 | flags = static_cast<InstanceofStub::Flags>( |
| 2029 | flags | InstanceofStub::kCallSiteInlineCheck); |
| 2030 | flags = static_cast<InstanceofStub::Flags>( |
| 2031 | flags | InstanceofStub::kReturnTrueFalseObject); |
| 2032 | InstanceofStub stub(flags); |
| 2033 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2034 | // Get the temp register reserved by the instruction. This needs to be a |
| 2035 | // register which is pushed last by PushSafepointRegisters as top of the |
| 2036 | // stack is used to pass the offset to the location of the map check to |
| 2037 | // the stub. |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2038 | Register temp = ToRegister(instr->TempAt(0)); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2039 | ASSERT(MacroAssembler::SafepointRegisterStackIndex(temp) == 0); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2040 | __ LoadHeapObject(InstanceofStub::right(), instr->function()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2041 | static const int kAdditionalDelta = 13; |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2042 | int delta = masm_->SizeOfCodeGeneratedSince(map_check) + kAdditionalDelta; |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2043 | __ mov(temp, Immediate(delta)); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2044 | __ StoreToSafepointRegisterSlot(temp, temp); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2045 | CallCodeGeneric(stub.GetCode(), |
| 2046 | RelocInfo::CODE_TARGET, |
| 2047 | instr, |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2048 | RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 2049 | ASSERT(instr->HasDeoptimizationEnvironment()); |
| 2050 | LEnvironment* env = instr->deoptimization_environment(); |
| 2051 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
| 2052 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2053 | // Put the result value into the eax slot and restore all registers. |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2054 | __ StoreToSafepointRegisterSlot(eax, eax); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2055 | } |
| 2056 | |
| 2057 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2058 | void LCodeGen::DoCmpT(LCmpT* instr) { |
| 2059 | Token::Value op = instr->op(); |
| 2060 | |
| 2061 | Handle<Code> ic = CompareIC::GetUninitialized(op); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2062 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2063 | |
| 2064 | Condition condition = ComputeCompareCondition(op); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2065 | Label true_value, done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2066 | __ test(eax, Operand(eax)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2067 | __ j(condition, &true_value, Label::kNear); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2068 | __ mov(ToRegister(instr->result()), factory()->false_value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2069 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2070 | __ bind(&true_value); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2071 | __ mov(ToRegister(instr->result()), factory()->true_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2072 | __ bind(&done); |
| 2073 | } |
| 2074 | |
| 2075 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2076 | void LCodeGen::DoReturn(LReturn* instr) { |
| 2077 | if (FLAG_trace) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2078 | // Preserve the return value on the stack and rely on the runtime call |
| 2079 | // to return the value in the same register. We're leaving the code |
| 2080 | // managed by the register allocator and tearing down the frame, it's |
| 2081 | // safe to write to the context register. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2082 | __ push(eax); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2083 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2084 | __ CallRuntime(Runtime::kTraceExit, 1); |
| 2085 | } |
| 2086 | __ mov(esp, ebp); |
| 2087 | __ pop(ebp); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2088 | if (dynamic_frame_alignment_) { |
| 2089 | Label aligned; |
| 2090 | // Frame alignment marker (padding) is below arguments, |
| 2091 | // and receiver, so its return-address-relative offset is |
| 2092 | // (num_arguments + 2) words. |
| 2093 | __ cmp(Operand(esp, (GetParameterCount() + 2) * kPointerSize), |
| 2094 | Immediate(factory()->frame_alignment_marker())); |
| 2095 | __ j(not_equal, &aligned); |
| 2096 | __ Ret((GetParameterCount() + 2) * kPointerSize, ecx); |
| 2097 | __ bind(&aligned); |
| 2098 | } |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 2099 | __ Ret((GetParameterCount() + 1) * kPointerSize, ecx); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2100 | } |
| 2101 | |
| 2102 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2103 | void LCodeGen::DoLoadGlobalCell(LLoadGlobalCell* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2104 | Register result = ToRegister(instr->result()); |
| 2105 | __ mov(result, Operand::Cell(instr->hydrogen()->cell())); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2106 | if (instr->hydrogen()->RequiresHoleCheck()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2107 | __ cmp(result, factory()->the_hole_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2108 | DeoptimizeIf(equal, instr->environment()); |
| 2109 | } |
| 2110 | } |
| 2111 | |
| 2112 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2113 | void LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) { |
| 2114 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 2115 | ASSERT(ToRegister(instr->global_object()).is(eax)); |
| 2116 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 2117 | |
| 2118 | __ mov(ecx, instr->name()); |
| 2119 | RelocInfo::Mode mode = instr->for_typeof() ? RelocInfo::CODE_TARGET : |
| 2120 | RelocInfo::CODE_TARGET_CONTEXT; |
| 2121 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2122 | CallCode(ic, mode, instr); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2123 | } |
| 2124 | |
| 2125 | |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 2126 | void LCodeGen::DoStoreGlobalCell(LStoreGlobalCell* instr) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2127 | Register object = ToRegister(instr->TempAt(0)); |
| 2128 | Register address = ToRegister(instr->TempAt(1)); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2129 | Register value = ToRegister(instr->InputAt(0)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2130 | ASSERT(!value.is(object)); |
| 2131 | Handle<JSGlobalPropertyCell> cell_handle(instr->hydrogen()->cell()); |
| 2132 | |
| 2133 | int offset = JSGlobalPropertyCell::kValueOffset; |
| 2134 | __ mov(object, Immediate(cell_handle)); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2135 | |
| 2136 | // If the cell we are storing to contains the hole it could have |
| 2137 | // been deleted from the property dictionary. In that case, we need |
| 2138 | // to update the property details in the property dictionary to mark |
| 2139 | // it as no longer deleted. We deoptimize in that case. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2140 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 2141 | __ cmp(FieldOperand(object, offset), factory()->the_hole_value()); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2142 | DeoptimizeIf(equal, instr->environment()); |
| 2143 | } |
| 2144 | |
| 2145 | // Store the value. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2146 | __ mov(FieldOperand(object, offset), value); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2147 | // Cells are always rescanned, so no write barrier here. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2148 | } |
| 2149 | |
| 2150 | |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 2151 | void LCodeGen::DoStoreGlobalGeneric(LStoreGlobalGeneric* instr) { |
| 2152 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 2153 | ASSERT(ToRegister(instr->global_object()).is(edx)); |
| 2154 | ASSERT(ToRegister(instr->value()).is(eax)); |
| 2155 | |
| 2156 | __ mov(ecx, instr->name()); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2157 | Handle<Code> ic = (instr->strict_mode_flag() == kStrictMode) |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2158 | ? isolate()->builtins()->StoreIC_Initialize_Strict() |
| 2159 | : isolate()->builtins()->StoreIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2160 | CallCode(ic, RelocInfo::CODE_TARGET_CONTEXT, instr); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 2161 | } |
| 2162 | |
| 2163 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2164 | void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) { |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2165 | Register context = ToRegister(instr->context()); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2166 | Register result = ToRegister(instr->result()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2167 | __ mov(result, ContextOperand(context, instr->slot_index())); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2168 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 2169 | __ cmp(result, factory()->the_hole_value()); |
| 2170 | DeoptimizeIf(equal, instr->environment()); |
| 2171 | } |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2172 | } |
| 2173 | |
| 2174 | |
| 2175 | void LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) { |
| 2176 | Register context = ToRegister(instr->context()); |
| 2177 | Register value = ToRegister(instr->value()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2178 | Operand target = ContextOperand(context, instr->slot_index()); |
| 2179 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 2180 | __ cmp(target, factory()->the_hole_value()); |
| 2181 | DeoptimizeIf(equal, instr->environment()); |
| 2182 | } |
| 2183 | __ mov(target, value); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2184 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
| 2185 | HType type = instr->hydrogen()->value()->type(); |
| 2186 | SmiCheck check_needed = |
| 2187 | type.IsHeapObject() ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2188 | Register temp = ToRegister(instr->TempAt(0)); |
| 2189 | int offset = Context::SlotOffset(instr->slot_index()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2190 | __ RecordWriteContextSlot(context, |
| 2191 | offset, |
| 2192 | value, |
| 2193 | temp, |
| 2194 | kSaveFPRegs, |
| 2195 | EMIT_REMEMBERED_SET, |
| 2196 | check_needed); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2197 | } |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2198 | } |
| 2199 | |
| 2200 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2201 | void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) { |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2202 | Register object = ToRegister(instr->object()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2203 | Register result = ToRegister(instr->result()); |
| 2204 | if (instr->hydrogen()->is_in_object()) { |
| 2205 | __ mov(result, FieldOperand(object, instr->hydrogen()->offset())); |
| 2206 | } else { |
| 2207 | __ mov(result, FieldOperand(object, JSObject::kPropertiesOffset)); |
| 2208 | __ mov(result, FieldOperand(result, instr->hydrogen()->offset())); |
| 2209 | } |
| 2210 | } |
| 2211 | |
| 2212 | |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 2213 | void LCodeGen::EmitLoadFieldOrConstantFunction(Register result, |
| 2214 | Register object, |
| 2215 | Handle<Map> type, |
| 2216 | Handle<String> name) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2217 | LookupResult lookup(isolate()); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2218 | type->LookupInDescriptors(NULL, *name, &lookup); |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 2219 | ASSERT(lookup.IsProperty() && |
| 2220 | (lookup.type() == FIELD || lookup.type() == CONSTANT_FUNCTION)); |
| 2221 | if (lookup.type() == FIELD) { |
| 2222 | int index = lookup.GetLocalFieldIndexFromMap(*type); |
| 2223 | int offset = index * kPointerSize; |
| 2224 | if (index < 0) { |
| 2225 | // Negative property indices are in-object properties, indexed |
| 2226 | // from the end of the fixed part of the object. |
| 2227 | __ mov(result, FieldOperand(object, offset + type->instance_size())); |
| 2228 | } else { |
| 2229 | // Non-negative property indices are in the properties array. |
| 2230 | __ mov(result, FieldOperand(object, JSObject::kPropertiesOffset)); |
| 2231 | __ mov(result, FieldOperand(result, offset + FixedArray::kHeaderSize)); |
| 2232 | } |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2233 | } else { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 2234 | Handle<JSFunction> function(lookup.GetConstantFunctionFromMap(*type)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2235 | __ LoadHeapObject(result, function); |
| 2236 | } |
| 2237 | } |
| 2238 | |
| 2239 | |
| 2240 | void LCodeGen::EmitPushTaggedOperand(LOperand* operand) { |
| 2241 | ASSERT(!operand->IsDoubleRegister()); |
| 2242 | if (operand->IsConstantOperand()) { |
| 2243 | Handle<Object> object = ToHandle(LConstantOperand::cast(operand)); |
| 2244 | if (object->IsSmi()) { |
| 2245 | __ Push(Handle<Smi>::cast(object)); |
| 2246 | } else { |
| 2247 | __ PushHeapObject(Handle<HeapObject>::cast(object)); |
| 2248 | } |
| 2249 | } else if (operand->IsRegister()) { |
| 2250 | __ push(ToRegister(operand)); |
| 2251 | } else { |
| 2252 | __ push(ToOperand(operand)); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2253 | } |
| 2254 | } |
| 2255 | |
| 2256 | |
| 2257 | void LCodeGen::DoLoadNamedFieldPolymorphic(LLoadNamedFieldPolymorphic* instr) { |
| 2258 | Register object = ToRegister(instr->object()); |
| 2259 | Register result = ToRegister(instr->result()); |
| 2260 | |
| 2261 | int map_count = instr->hydrogen()->types()->length(); |
| 2262 | Handle<String> name = instr->hydrogen()->name(); |
| 2263 | if (map_count == 0) { |
| 2264 | ASSERT(instr->hydrogen()->need_generic()); |
| 2265 | __ mov(ecx, name); |
| 2266 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2267 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2268 | } else { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2269 | Label done; |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2270 | for (int i = 0; i < map_count - 1; ++i) { |
| 2271 | Handle<Map> map = instr->hydrogen()->types()->at(i); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2272 | Label next; |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2273 | __ cmp(FieldOperand(object, HeapObject::kMapOffset), map); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2274 | __ j(not_equal, &next, Label::kNear); |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 2275 | EmitLoadFieldOrConstantFunction(result, object, map, name); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2276 | __ jmp(&done, Label::kNear); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2277 | __ bind(&next); |
| 2278 | } |
| 2279 | Handle<Map> map = instr->hydrogen()->types()->last(); |
| 2280 | __ cmp(FieldOperand(object, HeapObject::kMapOffset), map); |
| 2281 | if (instr->hydrogen()->need_generic()) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2282 | Label generic; |
| 2283 | __ j(not_equal, &generic, Label::kNear); |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 2284 | EmitLoadFieldOrConstantFunction(result, object, map, name); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2285 | __ jmp(&done, Label::kNear); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2286 | __ bind(&generic); |
| 2287 | __ mov(ecx, name); |
| 2288 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2289 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2290 | } else { |
| 2291 | DeoptimizeIf(not_equal, instr->environment()); |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 2292 | EmitLoadFieldOrConstantFunction(result, object, map, name); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2293 | } |
| 2294 | __ bind(&done); |
| 2295 | } |
| 2296 | } |
| 2297 | |
| 2298 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2299 | void LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2300 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2301 | ASSERT(ToRegister(instr->object()).is(eax)); |
| 2302 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 2303 | |
| 2304 | __ mov(ecx, instr->name()); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2305 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2306 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2307 | } |
| 2308 | |
| 2309 | |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 2310 | void LCodeGen::DoLoadFunctionPrototype(LLoadFunctionPrototype* instr) { |
| 2311 | Register function = ToRegister(instr->function()); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2312 | Register temp = ToRegister(instr->TempAt(0)); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 2313 | Register result = ToRegister(instr->result()); |
| 2314 | |
| 2315 | // Check that the function really is a function. |
| 2316 | __ CmpObjectType(function, JS_FUNCTION_TYPE, result); |
| 2317 | DeoptimizeIf(not_equal, instr->environment()); |
| 2318 | |
| 2319 | // Check whether the function has an instance prototype. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2320 | Label non_instance; |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 2321 | __ test_b(FieldOperand(result, Map::kBitFieldOffset), |
| 2322 | 1 << Map::kHasNonInstancePrototype); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2323 | __ j(not_zero, &non_instance, Label::kNear); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 2324 | |
| 2325 | // Get the prototype or initial map from the function. |
| 2326 | __ mov(result, |
| 2327 | FieldOperand(function, JSFunction::kPrototypeOrInitialMapOffset)); |
| 2328 | |
| 2329 | // Check that the function has a prototype or an initial map. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2330 | __ cmp(Operand(result), Immediate(factory()->the_hole_value())); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 2331 | DeoptimizeIf(equal, instr->environment()); |
| 2332 | |
| 2333 | // If the function does not have an initial map, we're done. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2334 | Label done; |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 2335 | __ CmpObjectType(result, MAP_TYPE, temp); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2336 | __ j(not_equal, &done, Label::kNear); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 2337 | |
| 2338 | // Get the prototype from the initial map. |
| 2339 | __ mov(result, FieldOperand(result, Map::kPrototypeOffset)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2340 | __ jmp(&done, Label::kNear); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 2341 | |
| 2342 | // Non-instance prototype: Fetch prototype from constructor field |
| 2343 | // in the function's map. |
| 2344 | __ bind(&non_instance); |
| 2345 | __ mov(result, FieldOperand(result, Map::kConstructorOffset)); |
| 2346 | |
| 2347 | // All done. |
| 2348 | __ bind(&done); |
| 2349 | } |
| 2350 | |
| 2351 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2352 | void LCodeGen::DoLoadElements(LLoadElements* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2353 | Register result = ToRegister(instr->result()); |
| 2354 | Register input = ToRegister(instr->InputAt(0)); |
| 2355 | __ mov(result, FieldOperand(input, JSObject::kElementsOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2356 | if (FLAG_debug_code) { |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2357 | Label done, ok, fail; |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2358 | __ cmp(FieldOperand(result, HeapObject::kMapOffset), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2359 | Immediate(factory()->fixed_array_map())); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2360 | __ j(equal, &done, Label::kNear); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2361 | __ cmp(FieldOperand(result, HeapObject::kMapOffset), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2362 | Immediate(factory()->fixed_cow_array_map())); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2363 | __ j(equal, &done, Label::kNear); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2364 | Register temp((result.is(eax)) ? ebx : eax); |
| 2365 | __ push(temp); |
| 2366 | __ mov(temp, FieldOperand(result, HeapObject::kMapOffset)); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2367 | __ movzx_b(temp, FieldOperand(temp, Map::kBitField2Offset)); |
| 2368 | __ and_(temp, Map::kElementsKindMask); |
| 2369 | __ shr(temp, Map::kElementsKindShift); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2370 | __ cmp(temp, FAST_ELEMENTS); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2371 | __ j(equal, &ok, Label::kNear); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2372 | __ cmp(temp, FIRST_EXTERNAL_ARRAY_ELEMENTS_KIND); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2373 | __ j(less, &fail, Label::kNear); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2374 | __ cmp(temp, LAST_EXTERNAL_ARRAY_ELEMENTS_KIND); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2375 | __ j(less_equal, &ok, Label::kNear); |
| 2376 | __ bind(&fail); |
| 2377 | __ Abort("Check for fast or external elements failed."); |
| 2378 | __ bind(&ok); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2379 | __ pop(temp); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2380 | __ bind(&done); |
| 2381 | } |
| 2382 | } |
| 2383 | |
| 2384 | |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 2385 | void LCodeGen::DoLoadExternalArrayPointer( |
| 2386 | LLoadExternalArrayPointer* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2387 | Register result = ToRegister(instr->result()); |
| 2388 | Register input = ToRegister(instr->InputAt(0)); |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 2389 | __ mov(result, FieldOperand(input, |
| 2390 | ExternalArray::kExternalPointerOffset)); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2391 | } |
| 2392 | |
| 2393 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2394 | void LCodeGen::DoAccessArgumentsAt(LAccessArgumentsAt* instr) { |
| 2395 | Register arguments = ToRegister(instr->arguments()); |
| 2396 | Register length = ToRegister(instr->length()); |
| 2397 | Operand index = ToOperand(instr->index()); |
| 2398 | Register result = ToRegister(instr->result()); |
| 2399 | |
| 2400 | __ sub(length, index); |
| 2401 | DeoptimizeIf(below_equal, instr->environment()); |
| 2402 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2403 | // There are two words between the frame pointer and the last argument. |
| 2404 | // Subtracting from length accounts for one of them add one more. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2405 | __ mov(result, Operand(arguments, length, times_4, kPointerSize)); |
| 2406 | } |
| 2407 | |
| 2408 | |
| 2409 | void LCodeGen::DoLoadKeyedFastElement(LLoadKeyedFastElement* instr) { |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2410 | Register result = ToRegister(instr->result()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2411 | |
| 2412 | // Load the result. |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 2413 | __ mov(result, |
| 2414 | BuildFastArrayOperand(instr->elements(), instr->key(), |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2415 | FAST_ELEMENTS, |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 2416 | FixedArray::kHeaderSize - kHeapObjectTag)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2417 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2418 | // Check for the hole value. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2419 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 2420 | __ cmp(result, factory()->the_hole_value()); |
| 2421 | DeoptimizeIf(equal, instr->environment()); |
| 2422 | } |
| 2423 | } |
| 2424 | |
| 2425 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 2426 | void LCodeGen::DoLoadKeyedFastDoubleElement( |
| 2427 | LLoadKeyedFastDoubleElement* instr) { |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 2428 | XMMRegister result = ToDoubleRegister(instr->result()); |
| 2429 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2430 | int offset = FixedDoubleArray::kHeaderSize - kHeapObjectTag + |
| 2431 | sizeof(kHoleNanLower32); |
| 2432 | Operand hole_check_operand = BuildFastArrayOperand( |
| 2433 | instr->elements(), instr->key(), |
| 2434 | FAST_DOUBLE_ELEMENTS, |
| 2435 | offset); |
| 2436 | __ cmp(hole_check_operand, Immediate(kHoleNanUpper32)); |
| 2437 | DeoptimizeIf(equal, instr->environment()); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 2438 | |
| 2439 | Operand double_load_operand = BuildFastArrayOperand( |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2440 | instr->elements(), instr->key(), FAST_DOUBLE_ELEMENTS, |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 2441 | FixedDoubleArray::kHeaderSize - kHeapObjectTag); |
| 2442 | __ movdbl(result, double_load_operand); |
| 2443 | } |
| 2444 | |
| 2445 | |
| 2446 | Operand LCodeGen::BuildFastArrayOperand( |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 2447 | LOperand* elements_pointer, |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 2448 | LOperand* key, |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2449 | ElementsKind elements_kind, |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 2450 | uint32_t offset) { |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 2451 | Register elements_pointer_reg = ToRegister(elements_pointer); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 2452 | int shift_size = ElementsKindToShiftSize(elements_kind); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2453 | if (key->IsConstantOperand()) { |
| 2454 | int constant_value = ToInteger32(LConstantOperand::cast(key)); |
| 2455 | if (constant_value & 0xF0000000) { |
| 2456 | Abort("array index constant value too big"); |
| 2457 | } |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 2458 | return Operand(elements_pointer_reg, |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 2459 | constant_value * (1 << shift_size) + offset); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2460 | } else { |
| 2461 | ScaleFactor scale_factor = static_cast<ScaleFactor>(shift_size); |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 2462 | return Operand(elements_pointer_reg, ToRegister(key), scale_factor, offset); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2463 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2464 | } |
| 2465 | |
| 2466 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2467 | void LCodeGen::DoLoadKeyedSpecializedArrayElement( |
| 2468 | LLoadKeyedSpecializedArrayElement* instr) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2469 | ElementsKind elements_kind = instr->elements_kind(); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 2470 | Operand operand(BuildFastArrayOperand(instr->external_pointer(), |
| 2471 | instr->key(), elements_kind, 0)); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2472 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2473 | XMMRegister result(ToDoubleRegister(instr->result())); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2474 | __ movss(result, operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2475 | __ cvtss2sd(result, result); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2476 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2477 | __ movdbl(ToDoubleRegister(instr->result()), operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2478 | } else { |
| 2479 | Register result(ToRegister(instr->result())); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 2480 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2481 | case EXTERNAL_BYTE_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2482 | __ movsx_b(result, operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2483 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2484 | case EXTERNAL_PIXEL_ELEMENTS: |
| 2485 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2486 | __ movzx_b(result, operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2487 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2488 | case EXTERNAL_SHORT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2489 | __ movsx_w(result, operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2490 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2491 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2492 | __ movzx_w(result, operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2493 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2494 | case EXTERNAL_INT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2495 | __ mov(result, operand); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2496 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2497 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2498 | __ mov(result, operand); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2499 | __ test(result, Operand(result)); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2500 | // TODO(danno): we could be more clever here, perhaps having a special |
| 2501 | // version of the stub that detects if the overflow case actually |
| 2502 | // happens, and generate code that returns a double rather than int. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2503 | DeoptimizeIf(negative, instr->environment()); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2504 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2505 | case EXTERNAL_FLOAT_ELEMENTS: |
| 2506 | case EXTERNAL_DOUBLE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2507 | case FAST_SMI_ONLY_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2508 | case FAST_ELEMENTS: |
| 2509 | case FAST_DOUBLE_ELEMENTS: |
| 2510 | case DICTIONARY_ELEMENTS: |
| 2511 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2512 | UNREACHABLE(); |
| 2513 | break; |
| 2514 | } |
| 2515 | } |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2516 | } |
| 2517 | |
| 2518 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2519 | void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2520 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2521 | ASSERT(ToRegister(instr->object()).is(edx)); |
| 2522 | ASSERT(ToRegister(instr->key()).is(eax)); |
| 2523 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2524 | Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2525 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2526 | } |
| 2527 | |
| 2528 | |
| 2529 | void LCodeGen::DoArgumentsElements(LArgumentsElements* instr) { |
| 2530 | Register result = ToRegister(instr->result()); |
| 2531 | |
| 2532 | // Check for arguments adapter frame. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2533 | Label done, adapted; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2534 | __ mov(result, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
| 2535 | __ mov(result, Operand(result, StandardFrameConstants::kContextOffset)); |
| 2536 | __ cmp(Operand(result), |
| 2537 | Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2538 | __ j(equal, &adapted, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2539 | |
| 2540 | // No arguments adaptor frame. |
| 2541 | __ mov(result, Operand(ebp)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2542 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2543 | |
| 2544 | // Arguments adaptor frame present. |
| 2545 | __ bind(&adapted); |
| 2546 | __ mov(result, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
| 2547 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2548 | // Result is the frame pointer for the frame if not adapted and for the real |
| 2549 | // frame below the adaptor frame if adapted. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2550 | __ bind(&done); |
| 2551 | } |
| 2552 | |
| 2553 | |
| 2554 | void LCodeGen::DoArgumentsLength(LArgumentsLength* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2555 | Operand elem = ToOperand(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2556 | Register result = ToRegister(instr->result()); |
| 2557 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2558 | Label done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2559 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2560 | // If no arguments adaptor frame the number of arguments is fixed. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2561 | __ cmp(ebp, elem); |
| 2562 | __ mov(result, Immediate(scope()->num_parameters())); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2563 | __ j(equal, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2564 | |
| 2565 | // Arguments adaptor frame present. Get argument length from there. |
| 2566 | __ mov(result, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
| 2567 | __ mov(result, Operand(result, |
| 2568 | ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 2569 | __ SmiUntag(result); |
| 2570 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2571 | // Argument length is in result register. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2572 | __ bind(&done); |
| 2573 | } |
| 2574 | |
| 2575 | |
| 2576 | void LCodeGen::DoApplyArguments(LApplyArguments* instr) { |
| 2577 | Register receiver = ToRegister(instr->receiver()); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2578 | Register function = ToRegister(instr->function()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2579 | Register length = ToRegister(instr->length()); |
| 2580 | Register elements = ToRegister(instr->elements()); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2581 | Register scratch = ToRegister(instr->TempAt(0)); |
| 2582 | ASSERT(receiver.is(eax)); // Used for parameter count. |
| 2583 | ASSERT(function.is(edi)); // Required by InvokeFunction. |
| 2584 | ASSERT(ToRegister(instr->result()).is(eax)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2585 | |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 2586 | // If the receiver is null or undefined, we have to pass the global |
| 2587 | // object as a receiver to normal functions. Values have to be |
| 2588 | // passed unchanged to builtins and strict-mode functions. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2589 | Label global_object, receiver_ok; |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 2590 | |
| 2591 | // Do not transform the receiver to object for strict mode |
| 2592 | // functions. |
| 2593 | __ mov(scratch, |
| 2594 | FieldOperand(function, JSFunction::kSharedFunctionInfoOffset)); |
| 2595 | __ test_b(FieldOperand(scratch, SharedFunctionInfo::kStrictModeByteOffset), |
| 2596 | 1 << SharedFunctionInfo::kStrictModeBitWithinByte); |
| 2597 | __ j(not_equal, &receiver_ok, Label::kNear); |
| 2598 | |
| 2599 | // Do not transform the receiver to object for builtins. |
| 2600 | __ test_b(FieldOperand(scratch, SharedFunctionInfo::kNativeByteOffset), |
| 2601 | 1 << SharedFunctionInfo::kNativeBitWithinByte); |
| 2602 | __ j(not_equal, &receiver_ok, Label::kNear); |
| 2603 | |
| 2604 | // Normal function. Replace undefined or null with global receiver. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2605 | __ cmp(receiver, factory()->null_value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2606 | __ j(equal, &global_object, Label::kNear); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2607 | __ cmp(receiver, factory()->undefined_value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2608 | __ j(equal, &global_object, Label::kNear); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2609 | |
| 2610 | // The receiver should be a JS object. |
| 2611 | __ test(receiver, Immediate(kSmiTagMask)); |
| 2612 | DeoptimizeIf(equal, instr->environment()); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 2613 | __ CmpObjectType(receiver, FIRST_SPEC_OBJECT_TYPE, scratch); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2614 | DeoptimizeIf(below, instr->environment()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2615 | __ jmp(&receiver_ok, Label::kNear); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2616 | |
| 2617 | __ bind(&global_object); |
| 2618 | // TODO(kmillikin): We have a hydrogen value for the global object. See |
| 2619 | // if it's better to use it than to explicitly fetch it from the context |
| 2620 | // here. |
| 2621 | __ mov(receiver, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 2622 | __ mov(receiver, ContextOperand(receiver, Context::GLOBAL_INDEX)); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 2623 | __ mov(receiver, |
| 2624 | FieldOperand(receiver, JSGlobalObject::kGlobalReceiverOffset)); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2625 | __ bind(&receiver_ok); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2626 | |
| 2627 | // Copy the arguments to this function possibly from the |
| 2628 | // adaptor frame below it. |
| 2629 | const uint32_t kArgumentsLimit = 1 * KB; |
| 2630 | __ cmp(length, kArgumentsLimit); |
| 2631 | DeoptimizeIf(above, instr->environment()); |
| 2632 | |
| 2633 | __ push(receiver); |
| 2634 | __ mov(receiver, length); |
| 2635 | |
| 2636 | // Loop through the arguments pushing them onto the execution |
| 2637 | // stack. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2638 | Label invoke, loop; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2639 | // length is a small non-negative integer, due to the test above. |
| 2640 | __ test(length, Operand(length)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2641 | __ j(zero, &invoke, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2642 | __ bind(&loop); |
| 2643 | __ push(Operand(elements, length, times_pointer_size, 1 * kPointerSize)); |
| 2644 | __ dec(length); |
| 2645 | __ j(not_zero, &loop); |
| 2646 | |
| 2647 | // Invoke the function. |
| 2648 | __ bind(&invoke); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 2649 | ASSERT(instr->HasPointerMap() && instr->HasDeoptimizationEnvironment()); |
| 2650 | LPointerMap* pointers = instr->pointer_map(); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 2651 | RecordPosition(pointers->position()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 2652 | SafepointGenerator safepoint_generator( |
| 2653 | this, pointers, Safepoint::kLazyDeopt); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 2654 | ParameterCount actual(eax); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 2655 | __ InvokeFunction(function, actual, CALL_FUNCTION, |
| 2656 | safepoint_generator, CALL_AS_METHOD); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2657 | } |
| 2658 | |
| 2659 | |
| 2660 | void LCodeGen::DoPushArgument(LPushArgument* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2661 | LOperand* argument = instr->InputAt(0); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2662 | EmitPushTaggedOperand(argument); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2663 | } |
| 2664 | |
| 2665 | |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 2666 | void LCodeGen::DoThisFunction(LThisFunction* instr) { |
| 2667 | Register result = ToRegister(instr->result()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2668 | __ LoadHeapObject(result, instr->hydrogen()->closure()); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 2669 | } |
| 2670 | |
| 2671 | |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2672 | void LCodeGen::DoContext(LContext* instr) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2673 | Register result = ToRegister(instr->result()); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2674 | __ mov(result, Operand(ebp, StandardFrameConstants::kContextOffset)); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2675 | } |
| 2676 | |
| 2677 | |
| 2678 | void LCodeGen::DoOuterContext(LOuterContext* instr) { |
| 2679 | Register context = ToRegister(instr->context()); |
| 2680 | Register result = ToRegister(instr->result()); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 2681 | __ mov(result, |
| 2682 | Operand(context, Context::SlotOffset(Context::PREVIOUS_INDEX))); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2683 | } |
| 2684 | |
| 2685 | |
| 2686 | void LCodeGen::DoGlobalObject(LGlobalObject* instr) { |
| 2687 | Register context = ToRegister(instr->context()); |
| 2688 | Register result = ToRegister(instr->result()); |
| 2689 | __ mov(result, Operand(context, Context::SlotOffset(Context::GLOBAL_INDEX))); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2690 | } |
| 2691 | |
| 2692 | |
| 2693 | void LCodeGen::DoGlobalReceiver(LGlobalReceiver* instr) { |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2694 | Register global = ToRegister(instr->global()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2695 | Register result = ToRegister(instr->result()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 2696 | __ mov(result, FieldOperand(global, GlobalObject::kGlobalReceiverOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2697 | } |
| 2698 | |
| 2699 | |
| 2700 | void LCodeGen::CallKnownFunction(Handle<JSFunction> function, |
| 2701 | int arity, |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2702 | LInstruction* instr, |
| 2703 | CallKind call_kind) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2704 | // Change context if needed. |
| 2705 | bool change_context = |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2706 | (info()->closure()->context() != function->context()) || |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2707 | scope()->contains_with() || |
| 2708 | (scope()->num_heap_slots() > 0); |
| 2709 | if (change_context) { |
| 2710 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2711 | } else { |
| 2712 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2713 | } |
| 2714 | |
| 2715 | // Set eax to arguments count if adaption is not needed. Assumes that eax |
| 2716 | // is available to write to at this point. |
| 2717 | if (!function->NeedsArgumentsAdaption()) { |
| 2718 | __ mov(eax, arity); |
| 2719 | } |
| 2720 | |
| 2721 | LPointerMap* pointers = instr->pointer_map(); |
| 2722 | RecordPosition(pointers->position()); |
| 2723 | |
| 2724 | // Invoke function. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2725 | __ SetCallKind(ecx, call_kind); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 2726 | if (*function == *info()->closure()) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2727 | __ CallSelf(); |
| 2728 | } else { |
| 2729 | __ call(FieldOperand(edi, JSFunction::kCodeEntryOffset)); |
| 2730 | } |
| 2731 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 2732 | RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2733 | } |
| 2734 | |
| 2735 | |
| 2736 | void LCodeGen::DoCallConstantFunction(LCallConstantFunction* instr) { |
| 2737 | ASSERT(ToRegister(instr->result()).is(eax)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2738 | __ LoadHeapObject(edi, instr->function()); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2739 | CallKnownFunction(instr->function(), |
| 2740 | instr->arity(), |
| 2741 | instr, |
| 2742 | CALL_AS_METHOD); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2743 | } |
| 2744 | |
| 2745 | |
| 2746 | void LCodeGen::DoDeferredMathAbsTaggedHeapNumber(LUnaryMathOperation* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2747 | Register input_reg = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2748 | __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2749 | factory()->heap_number_map()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2750 | DeoptimizeIf(not_equal, instr->environment()); |
| 2751 | |
| 2752 | Label done; |
| 2753 | Register tmp = input_reg.is(eax) ? ecx : eax; |
| 2754 | Register tmp2 = tmp.is(ecx) ? edx : input_reg.is(ecx) ? edx : ecx; |
| 2755 | |
| 2756 | // Preserve the value of all registers. |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2757 | PushSafepointRegistersScope scope(this); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2758 | |
| 2759 | Label negative; |
| 2760 | __ mov(tmp, FieldOperand(input_reg, HeapNumber::kExponentOffset)); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2761 | // Check the sign of the argument. If the argument is positive, just |
| 2762 | // return it. We do not need to patch the stack since |input| and |
| 2763 | // |result| are the same register and |input| will be restored |
| 2764 | // unchanged by popping safepoint registers. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2765 | __ test(tmp, Immediate(HeapNumber::kSignMask)); |
| 2766 | __ j(not_zero, &negative); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2767 | __ jmp(&done); |
| 2768 | |
| 2769 | __ bind(&negative); |
| 2770 | |
| 2771 | Label allocated, slow; |
| 2772 | __ AllocateHeapNumber(tmp, tmp2, no_reg, &slow); |
| 2773 | __ jmp(&allocated); |
| 2774 | |
| 2775 | // Slow case: Call the runtime system to do the number allocation. |
| 2776 | __ bind(&slow); |
| 2777 | |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2778 | CallRuntimeFromDeferred(Runtime::kAllocateHeapNumber, 0, |
| 2779 | instr, instr->context()); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 2780 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2781 | // Set the pointer to the new heap number in tmp. |
| 2782 | if (!tmp.is(eax)) __ mov(tmp, eax); |
| 2783 | |
| 2784 | // Restore input_reg after call to runtime. |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2785 | __ LoadFromSafepointRegisterSlot(input_reg, input_reg); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2786 | |
| 2787 | __ bind(&allocated); |
| 2788 | __ mov(tmp2, FieldOperand(input_reg, HeapNumber::kExponentOffset)); |
| 2789 | __ and_(tmp2, ~HeapNumber::kSignMask); |
| 2790 | __ mov(FieldOperand(tmp, HeapNumber::kExponentOffset), tmp2); |
| 2791 | __ mov(tmp2, FieldOperand(input_reg, HeapNumber::kMantissaOffset)); |
| 2792 | __ mov(FieldOperand(tmp, HeapNumber::kMantissaOffset), tmp2); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2793 | __ StoreToSafepointRegisterSlot(input_reg, tmp); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2794 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2795 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2796 | } |
| 2797 | |
| 2798 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2799 | void LCodeGen::EmitIntegerMathAbs(LUnaryMathOperation* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2800 | Register input_reg = ToRegister(instr->value()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2801 | __ test(input_reg, Operand(input_reg)); |
| 2802 | Label is_positive; |
| 2803 | __ j(not_sign, &is_positive); |
| 2804 | __ neg(input_reg); |
| 2805 | __ test(input_reg, Operand(input_reg)); |
| 2806 | DeoptimizeIf(negative, instr->environment()); |
| 2807 | __ bind(&is_positive); |
| 2808 | } |
| 2809 | |
| 2810 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2811 | void LCodeGen::DoMathAbs(LUnaryMathOperation* instr) { |
| 2812 | // Class for deferred case. |
| 2813 | class DeferredMathAbsTaggedHeapNumber: public LDeferredCode { |
| 2814 | public: |
| 2815 | DeferredMathAbsTaggedHeapNumber(LCodeGen* codegen, |
| 2816 | LUnaryMathOperation* instr) |
| 2817 | : LDeferredCode(codegen), instr_(instr) { } |
| 2818 | virtual void Generate() { |
| 2819 | codegen()->DoDeferredMathAbsTaggedHeapNumber(instr_); |
| 2820 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2821 | virtual LInstruction* instr() { return instr_; } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2822 | private: |
| 2823 | LUnaryMathOperation* instr_; |
| 2824 | }; |
| 2825 | |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2826 | ASSERT(instr->value()->Equals(instr->result())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2827 | Representation r = instr->hydrogen()->value()->representation(); |
| 2828 | |
| 2829 | if (r.IsDouble()) { |
| 2830 | XMMRegister scratch = xmm0; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2831 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 2832 | __ xorps(scratch, scratch); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2833 | __ subsd(scratch, input_reg); |
| 2834 | __ pand(input_reg, scratch); |
| 2835 | } else if (r.IsInteger32()) { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2836 | EmitIntegerMathAbs(instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2837 | } else { // Tagged case. |
| 2838 | DeferredMathAbsTaggedHeapNumber* deferred = |
| 2839 | new DeferredMathAbsTaggedHeapNumber(this, instr); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2840 | Register input_reg = ToRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2841 | // Smi check. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2842 | __ JumpIfNotSmi(input_reg, deferred->entry()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2843 | EmitIntegerMathAbs(instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2844 | __ bind(deferred->exit()); |
| 2845 | } |
| 2846 | } |
| 2847 | |
| 2848 | |
| 2849 | void LCodeGen::DoMathFloor(LUnaryMathOperation* instr) { |
| 2850 | XMMRegister xmm_scratch = xmm0; |
| 2851 | Register output_reg = ToRegister(instr->result()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2852 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2853 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 2854 | if (CpuFeatures::IsSupported(SSE4_1)) { |
| 2855 | CpuFeatures::Scope scope(SSE4_1); |
| 2856 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 2857 | // Deoptimize on negative zero. |
| 2858 | Label non_zero; |
| 2859 | __ xorps(xmm_scratch, xmm_scratch); // Zero the register. |
| 2860 | __ ucomisd(input_reg, xmm_scratch); |
| 2861 | __ j(not_equal, &non_zero, Label::kNear); |
| 2862 | __ movmskpd(output_reg, input_reg); |
| 2863 | __ test(output_reg, Immediate(1)); |
| 2864 | DeoptimizeIf(not_zero, instr->environment()); |
| 2865 | __ bind(&non_zero); |
| 2866 | } |
| 2867 | __ roundsd(xmm_scratch, input_reg, Assembler::kRoundDown); |
| 2868 | __ cvttsd2si(output_reg, Operand(xmm_scratch)); |
| 2869 | // Overflow is signalled with minint. |
| 2870 | __ cmp(output_reg, 0x80000000u); |
| 2871 | DeoptimizeIf(equal, instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2872 | } else { |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 2873 | Label done; |
| 2874 | // Deoptimize on negative numbers. |
| 2875 | __ xorps(xmm_scratch, xmm_scratch); // Zero the register. |
| 2876 | __ ucomisd(input_reg, xmm_scratch); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2877 | DeoptimizeIf(below, instr->environment()); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 2878 | |
| 2879 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 2880 | // Check for negative zero. |
| 2881 | Label positive_sign; |
| 2882 | __ j(above, &positive_sign, Label::kNear); |
| 2883 | __ movmskpd(output_reg, input_reg); |
| 2884 | __ test(output_reg, Immediate(1)); |
| 2885 | DeoptimizeIf(not_zero, instr->environment()); |
| 2886 | __ Set(output_reg, Immediate(0)); |
| 2887 | __ jmp(&done, Label::kNear); |
| 2888 | __ bind(&positive_sign); |
| 2889 | } |
| 2890 | |
| 2891 | // Use truncating instruction (OK because input is positive). |
| 2892 | __ cvttsd2si(output_reg, Operand(input_reg)); |
| 2893 | |
| 2894 | // Overflow is signalled with minint. |
| 2895 | __ cmp(output_reg, 0x80000000u); |
| 2896 | DeoptimizeIf(equal, instr->environment()); |
| 2897 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2898 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2899 | } |
| 2900 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2901 | void LCodeGen::DoMathRound(LUnaryMathOperation* instr) { |
| 2902 | XMMRegister xmm_scratch = xmm0; |
| 2903 | Register output_reg = ToRegister(instr->result()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2904 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2905 | |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 2906 | Label below_half, done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2907 | // xmm_scratch = 0.5 |
| 2908 | ExternalReference one_half = ExternalReference::address_of_one_half(); |
| 2909 | __ movdbl(xmm_scratch, Operand::StaticVariable(one_half)); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 2910 | __ ucomisd(xmm_scratch, input_reg); |
| 2911 | __ j(above, &below_half); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2912 | // xmm_scratch = input + 0.5 |
| 2913 | __ addsd(xmm_scratch, input_reg); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2914 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2915 | // Compute Math.floor(value + 0.5). |
| 2916 | // Use truncating instruction (OK because input is positive). |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2917 | __ cvttsd2si(output_reg, Operand(xmm_scratch)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2918 | |
| 2919 | // Overflow is signalled with minint. |
| 2920 | __ cmp(output_reg, 0x80000000u); |
| 2921 | DeoptimizeIf(equal, instr->environment()); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 2922 | __ jmp(&done); |
| 2923 | |
| 2924 | __ bind(&below_half); |
| 2925 | |
| 2926 | // We return 0 for the input range [+0, 0.5[, or [-0.5, 0.5[ if |
| 2927 | // we can ignore the difference between a result of -0 and +0. |
| 2928 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 2929 | // If the sign is positive, we return +0. |
| 2930 | __ movmskpd(output_reg, input_reg); |
| 2931 | __ test(output_reg, Immediate(1)); |
| 2932 | DeoptimizeIf(not_zero, instr->environment()); |
| 2933 | } else { |
| 2934 | // If the input is >= -0.5, we return +0. |
| 2935 | __ mov(output_reg, Immediate(0xBF000000)); |
| 2936 | __ movd(xmm_scratch, Operand(output_reg)); |
| 2937 | __ cvtss2sd(xmm_scratch, xmm_scratch); |
| 2938 | __ ucomisd(input_reg, xmm_scratch); |
| 2939 | DeoptimizeIf(below, instr->environment()); |
| 2940 | } |
| 2941 | __ Set(output_reg, Immediate(0)); |
| 2942 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2943 | } |
| 2944 | |
| 2945 | |
| 2946 | void LCodeGen::DoMathSqrt(LUnaryMathOperation* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2947 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2948 | ASSERT(ToDoubleRegister(instr->result()).is(input_reg)); |
| 2949 | __ sqrtsd(input_reg, input_reg); |
| 2950 | } |
| 2951 | |
| 2952 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2953 | void LCodeGen::DoMathPowHalf(LMathPowHalf* instr) { |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2954 | XMMRegister xmm_scratch = xmm0; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 2955 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2956 | Register scratch = ToRegister(instr->temp()); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2957 | ASSERT(ToDoubleRegister(instr->result()).is(input_reg)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2958 | |
| 2959 | // Note that according to ECMA-262 15.8.2.13: |
| 2960 | // Math.pow(-Infinity, 0.5) == Infinity |
| 2961 | // Math.sqrt(-Infinity) == NaN |
| 2962 | Label done, sqrt; |
| 2963 | // Check base for -Infinity. According to IEEE-754, single-precision |
| 2964 | // -Infinity has the highest 9 bits set and the lowest 23 bits cleared. |
| 2965 | __ mov(scratch, 0xFF800000); |
| 2966 | __ movd(xmm_scratch, scratch); |
| 2967 | __ cvtss2sd(xmm_scratch, xmm_scratch); |
| 2968 | __ ucomisd(input_reg, xmm_scratch); |
| 2969 | // Comparing -Infinity with NaN results in "unordered", which sets the |
| 2970 | // zero flag as if both were equal. However, it also sets the carry flag. |
| 2971 | __ j(not_equal, &sqrt, Label::kNear); |
| 2972 | __ j(carry, &sqrt, Label::kNear); |
| 2973 | // If input is -Infinity, return Infinity. |
| 2974 | __ xorps(input_reg, input_reg); |
| 2975 | __ subsd(input_reg, xmm_scratch); |
| 2976 | __ jmp(&done, Label::kNear); |
| 2977 | |
| 2978 | // Square root. |
| 2979 | __ bind(&sqrt); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 2980 | __ xorps(xmm_scratch, xmm_scratch); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 2981 | __ addsd(input_reg, xmm_scratch); // Convert -0 to +0. |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2982 | __ sqrtsd(input_reg, input_reg); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2983 | __ bind(&done); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2984 | } |
| 2985 | |
| 2986 | |
| 2987 | void LCodeGen::DoPower(LPower* instr) { |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 2988 | Representation exponent_type = instr->hydrogen()->right()->representation(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2989 | // Having marked this as a call, we can use any registers. |
| 2990 | // Just make sure that the input/output registers are the expected ones. |
| 2991 | ASSERT(!instr->InputAt(1)->IsDoubleRegister() || |
| 2992 | ToDoubleRegister(instr->InputAt(1)).is(xmm1)); |
| 2993 | ASSERT(!instr->InputAt(1)->IsRegister() || |
| 2994 | ToRegister(instr->InputAt(1)).is(eax)); |
| 2995 | ASSERT(ToDoubleRegister(instr->InputAt(0)).is(xmm2)); |
| 2996 | ASSERT(ToDoubleRegister(instr->result()).is(xmm3)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2997 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 2998 | if (exponent_type.IsTagged()) { |
| 2999 | Label no_deopt; |
| 3000 | __ JumpIfSmi(eax, &no_deopt); |
| 3001 | __ CmpObjectType(eax, HEAP_NUMBER_TYPE, ecx); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3002 | DeoptimizeIf(not_equal, instr->environment()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 3003 | __ bind(&no_deopt); |
| 3004 | MathPowStub stub(MathPowStub::TAGGED); |
| 3005 | __ CallStub(&stub); |
| 3006 | } else if (exponent_type.IsInteger32()) { |
| 3007 | MathPowStub stub(MathPowStub::INTEGER); |
| 3008 | __ CallStub(&stub); |
| 3009 | } else { |
| 3010 | ASSERT(exponent_type.IsDouble()); |
| 3011 | MathPowStub stub(MathPowStub::DOUBLE); |
| 3012 | __ CallStub(&stub); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3013 | } |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3014 | } |
| 3015 | |
| 3016 | |
| 3017 | void LCodeGen::DoMathLog(LUnaryMathOperation* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3018 | ASSERT(instr->value()->Equals(instr->result())); |
| 3019 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3020 | Label positive, done, zero; |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 3021 | __ xorps(xmm0, xmm0); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 3022 | __ ucomisd(input_reg, xmm0); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3023 | __ j(above, &positive, Label::kNear); |
| 3024 | __ j(equal, &zero, Label::kNear); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3025 | ExternalReference nan = |
| 3026 | ExternalReference::address_of_canonical_non_hole_nan(); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 3027 | __ movdbl(input_reg, Operand::StaticVariable(nan)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3028 | __ jmp(&done, Label::kNear); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 3029 | __ bind(&zero); |
| 3030 | __ push(Immediate(0xFFF00000)); |
| 3031 | __ push(Immediate(0)); |
| 3032 | __ movdbl(input_reg, Operand(esp, 0)); |
| 3033 | __ add(Operand(esp), Immediate(kDoubleSize)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3034 | __ jmp(&done, Label::kNear); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 3035 | __ bind(&positive); |
| 3036 | __ fldln2(); |
| 3037 | __ sub(Operand(esp), Immediate(kDoubleSize)); |
| 3038 | __ movdbl(Operand(esp, 0), input_reg); |
| 3039 | __ fld_d(Operand(esp, 0)); |
| 3040 | __ fyl2x(); |
| 3041 | __ fstp_d(Operand(esp, 0)); |
| 3042 | __ movdbl(input_reg, Operand(esp, 0)); |
| 3043 | __ add(Operand(esp), Immediate(kDoubleSize)); |
| 3044 | __ bind(&done); |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 3045 | } |
| 3046 | |
| 3047 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 3048 | void LCodeGen::DoMathTan(LUnaryMathOperation* instr) { |
| 3049 | ASSERT(ToDoubleRegister(instr->result()).is(xmm1)); |
| 3050 | TranscendentalCacheStub stub(TranscendentalCache::TAN, |
| 3051 | TranscendentalCacheStub::UNTAGGED); |
| 3052 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
| 3053 | } |
| 3054 | |
| 3055 | |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 3056 | void LCodeGen::DoMathCos(LUnaryMathOperation* instr) { |
| 3057 | ASSERT(ToDoubleRegister(instr->result()).is(xmm1)); |
| 3058 | TranscendentalCacheStub stub(TranscendentalCache::COS, |
| 3059 | TranscendentalCacheStub::UNTAGGED); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3060 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 3061 | } |
| 3062 | |
| 3063 | |
| 3064 | void LCodeGen::DoMathSin(LUnaryMathOperation* instr) { |
| 3065 | ASSERT(ToDoubleRegister(instr->result()).is(xmm1)); |
| 3066 | TranscendentalCacheStub stub(TranscendentalCache::SIN, |
| 3067 | TranscendentalCacheStub::UNTAGGED); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3068 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3069 | } |
| 3070 | |
| 3071 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3072 | void LCodeGen::DoUnaryMathOperation(LUnaryMathOperation* instr) { |
| 3073 | switch (instr->op()) { |
| 3074 | case kMathAbs: |
| 3075 | DoMathAbs(instr); |
| 3076 | break; |
| 3077 | case kMathFloor: |
| 3078 | DoMathFloor(instr); |
| 3079 | break; |
| 3080 | case kMathRound: |
| 3081 | DoMathRound(instr); |
| 3082 | break; |
| 3083 | case kMathSqrt: |
| 3084 | DoMathSqrt(instr); |
| 3085 | break; |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 3086 | case kMathCos: |
| 3087 | DoMathCos(instr); |
| 3088 | break; |
| 3089 | case kMathSin: |
| 3090 | DoMathSin(instr); |
| 3091 | break; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 3092 | case kMathTan: |
| 3093 | DoMathTan(instr); |
| 3094 | break; |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 3095 | case kMathLog: |
| 3096 | DoMathLog(instr); |
| 3097 | break; |
| 3098 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3099 | default: |
| 3100 | UNREACHABLE(); |
| 3101 | } |
| 3102 | } |
| 3103 | |
| 3104 | |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 3105 | void LCodeGen::DoInvokeFunction(LInvokeFunction* instr) { |
| 3106 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 3107 | ASSERT(ToRegister(instr->function()).is(edi)); |
| 3108 | ASSERT(instr->HasPointerMap()); |
| 3109 | ASSERT(instr->HasDeoptimizationEnvironment()); |
| 3110 | LPointerMap* pointers = instr->pointer_map(); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 3111 | RecordPosition(pointers->position()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 3112 | SafepointGenerator generator( |
| 3113 | this, pointers, Safepoint::kLazyDeopt); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 3114 | ParameterCount count(instr->arity()); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 3115 | __ InvokeFunction(edi, count, CALL_FUNCTION, generator, CALL_AS_METHOD); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 3116 | } |
| 3117 | |
| 3118 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3119 | void LCodeGen::DoCallKeyed(LCallKeyed* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3120 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 3121 | ASSERT(ToRegister(instr->key()).is(ecx)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3122 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 3123 | |
| 3124 | int arity = instr->arity(); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 3125 | Handle<Code> ic = |
| 3126 | isolate()->stub_cache()->ComputeKeyedCallInitialize(arity); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3127 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3128 | } |
| 3129 | |
| 3130 | |
| 3131 | void LCodeGen::DoCallNamed(LCallNamed* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3132 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3133 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 3134 | |
| 3135 | int arity = instr->arity(); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3136 | RelocInfo::Mode mode = RelocInfo::CODE_TARGET; |
| 3137 | Handle<Code> ic = |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 3138 | isolate()->stub_cache()->ComputeCallInitialize(arity, mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3139 | __ mov(ecx, instr->name()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3140 | CallCode(ic, mode, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3141 | } |
| 3142 | |
| 3143 | |
| 3144 | void LCodeGen::DoCallFunction(LCallFunction* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3145 | ASSERT(ToRegister(instr->context()).is(esi)); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 3146 | ASSERT(ToRegister(instr->function()).is(edi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3147 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 3148 | |
| 3149 | int arity = instr->arity(); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3150 | CallFunctionStub stub(arity, NO_CALL_FUNCTION_FLAGS); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3151 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3152 | } |
| 3153 | |
| 3154 | |
| 3155 | void LCodeGen::DoCallGlobal(LCallGlobal* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3156 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3157 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 3158 | |
| 3159 | int arity = instr->arity(); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3160 | RelocInfo::Mode mode = RelocInfo::CODE_TARGET_CONTEXT; |
| 3161 | Handle<Code> ic = |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 3162 | isolate()->stub_cache()->ComputeCallInitialize(arity, mode); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3163 | __ mov(ecx, instr->name()); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3164 | CallCode(ic, mode, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3165 | } |
| 3166 | |
| 3167 | |
| 3168 | void LCodeGen::DoCallKnownGlobal(LCallKnownGlobal* instr) { |
| 3169 | ASSERT(ToRegister(instr->result()).is(eax)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 3170 | __ LoadHeapObject(edi, instr->target()); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3171 | CallKnownFunction(instr->target(), instr->arity(), instr, CALL_AS_FUNCTION); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3172 | } |
| 3173 | |
| 3174 | |
| 3175 | void LCodeGen::DoCallNew(LCallNew* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3176 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 3177 | ASSERT(ToRegister(instr->constructor()).is(edi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3178 | ASSERT(ToRegister(instr->result()).is(eax)); |
| 3179 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3180 | Handle<Code> builtin = isolate()->builtins()->JSConstructCall(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3181 | __ Set(eax, Immediate(instr->arity())); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3182 | CallCode(builtin, RelocInfo::CONSTRUCT_CALL, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3183 | } |
| 3184 | |
| 3185 | |
| 3186 | void LCodeGen::DoCallRuntime(LCallRuntime* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3187 | CallRuntime(instr->function(), instr->arity(), instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3188 | } |
| 3189 | |
| 3190 | |
| 3191 | void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) { |
| 3192 | Register object = ToRegister(instr->object()); |
| 3193 | Register value = ToRegister(instr->value()); |
| 3194 | int offset = instr->offset(); |
| 3195 | |
| 3196 | if (!instr->transition().is_null()) { |
| 3197 | __ mov(FieldOperand(object, HeapObject::kMapOffset), instr->transition()); |
| 3198 | } |
| 3199 | |
| 3200 | // Do the store. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3201 | HType type = instr->hydrogen()->value()->type(); |
| 3202 | SmiCheck check_needed = |
| 3203 | type.IsHeapObject() ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3204 | if (instr->is_in_object()) { |
| 3205 | __ mov(FieldOperand(object, offset), value); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3206 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3207 | Register temp = ToRegister(instr->TempAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3208 | // 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] | 3209 | __ RecordWriteField(object, |
| 3210 | offset, |
| 3211 | value, |
| 3212 | temp, |
| 3213 | kSaveFPRegs, |
| 3214 | EMIT_REMEMBERED_SET, |
| 3215 | check_needed); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3216 | } |
| 3217 | } else { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3218 | Register temp = ToRegister(instr->TempAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3219 | __ mov(temp, FieldOperand(object, JSObject::kPropertiesOffset)); |
| 3220 | __ mov(FieldOperand(temp, offset), value); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3221 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3222 | // Update the write barrier for the properties array. |
| 3223 | // object is used as a scratch register. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3224 | __ RecordWriteField(temp, |
| 3225 | offset, |
| 3226 | value, |
| 3227 | object, |
| 3228 | kSaveFPRegs, |
| 3229 | EMIT_REMEMBERED_SET, |
| 3230 | check_needed); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3231 | } |
| 3232 | } |
| 3233 | } |
| 3234 | |
| 3235 | |
| 3236 | void LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3237 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3238 | ASSERT(ToRegister(instr->object()).is(edx)); |
| 3239 | ASSERT(ToRegister(instr->value()).is(eax)); |
| 3240 | |
| 3241 | __ mov(ecx, instr->name()); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 3242 | Handle<Code> ic = (instr->strict_mode_flag() == kStrictMode) |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3243 | ? isolate()->builtins()->StoreIC_Initialize_Strict() |
| 3244 | : isolate()->builtins()->StoreIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3245 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3246 | } |
| 3247 | |
| 3248 | |
| 3249 | void LCodeGen::DoBoundsCheck(LBoundsCheck* instr) { |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 3250 | if (instr->index()->IsConstantOperand()) { |
| 3251 | __ cmp(ToOperand(instr->length()), |
| 3252 | ToImmediate(LConstantOperand::cast(instr->index()))); |
| 3253 | DeoptimizeIf(below_equal, instr->environment()); |
| 3254 | } else { |
| 3255 | __ cmp(ToRegister(instr->index()), ToOperand(instr->length())); |
| 3256 | DeoptimizeIf(above_equal, instr->environment()); |
| 3257 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3258 | } |
| 3259 | |
| 3260 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3261 | void LCodeGen::DoStoreKeyedSpecializedArrayElement( |
| 3262 | LStoreKeyedSpecializedArrayElement* instr) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3263 | ElementsKind elements_kind = instr->elements_kind(); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3264 | Operand operand(BuildFastArrayOperand(instr->external_pointer(), |
| 3265 | instr->key(), elements_kind, 0)); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3266 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3267 | __ cvtsd2ss(xmm0, ToDoubleRegister(instr->value())); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3268 | __ movss(operand, xmm0); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3269 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3270 | __ movdbl(operand, ToDoubleRegister(instr->value())); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3271 | } else { |
| 3272 | Register value = ToRegister(instr->value()); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3273 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3274 | case EXTERNAL_PIXEL_ELEMENTS: |
| 3275 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 3276 | case EXTERNAL_BYTE_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3277 | __ mov_b(operand, value); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3278 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3279 | case EXTERNAL_SHORT_ELEMENTS: |
| 3280 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3281 | __ mov_w(operand, value); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3282 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3283 | case EXTERNAL_INT_ELEMENTS: |
| 3284 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3285 | __ mov(operand, value); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3286 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3287 | case EXTERNAL_FLOAT_ELEMENTS: |
| 3288 | case EXTERNAL_DOUBLE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3289 | case FAST_SMI_ONLY_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3290 | case FAST_ELEMENTS: |
| 3291 | case FAST_DOUBLE_ELEMENTS: |
| 3292 | case DICTIONARY_ELEMENTS: |
| 3293 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3294 | UNREACHABLE(); |
| 3295 | break; |
| 3296 | } |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3297 | } |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3298 | } |
| 3299 | |
| 3300 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3301 | void LCodeGen::DoStoreKeyedFastElement(LStoreKeyedFastElement* instr) { |
| 3302 | Register value = ToRegister(instr->value()); |
| 3303 | Register elements = ToRegister(instr->object()); |
| 3304 | Register key = instr->key()->IsRegister() ? ToRegister(instr->key()) : no_reg; |
| 3305 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3306 | // This instruction cannot handle the FAST_SMI_ONLY_ELEMENTS -> FAST_ELEMENTS |
| 3307 | // conversion, so it deopts in that case. |
| 3308 | if (instr->hydrogen()->ValueNeedsSmiCheck()) { |
| 3309 | __ test(value, Immediate(kSmiTagMask)); |
| 3310 | DeoptimizeIf(not_zero, instr->environment()); |
| 3311 | } |
| 3312 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3313 | // Do the store. |
| 3314 | if (instr->key()->IsConstantOperand()) { |
| 3315 | ASSERT(!instr->hydrogen()->NeedsWriteBarrier()); |
| 3316 | LConstantOperand* const_operand = LConstantOperand::cast(instr->key()); |
| 3317 | int offset = |
| 3318 | ToInteger32(const_operand) * kPointerSize + FixedArray::kHeaderSize; |
| 3319 | __ mov(FieldOperand(elements, offset), value); |
| 3320 | } else { |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 3321 | __ mov(FieldOperand(elements, |
| 3322 | key, |
| 3323 | times_pointer_size, |
| 3324 | FixedArray::kHeaderSize), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3325 | value); |
| 3326 | } |
| 3327 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3328 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3329 | HType type = instr->hydrogen()->value()->type(); |
| 3330 | SmiCheck check_needed = |
| 3331 | type.IsHeapObject() ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3332 | // Compute address of modified element and store it into key register. |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 3333 | __ lea(key, |
| 3334 | FieldOperand(elements, |
| 3335 | key, |
| 3336 | times_pointer_size, |
| 3337 | FixedArray::kHeaderSize)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3338 | __ RecordWrite(elements, |
| 3339 | key, |
| 3340 | value, |
| 3341 | kSaveFPRegs, |
| 3342 | EMIT_REMEMBERED_SET, |
| 3343 | check_needed); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3344 | } |
| 3345 | } |
| 3346 | |
| 3347 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3348 | void LCodeGen::DoStoreKeyedFastDoubleElement( |
| 3349 | LStoreKeyedFastDoubleElement* instr) { |
| 3350 | XMMRegister value = ToDoubleRegister(instr->value()); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3351 | Label have_value; |
| 3352 | |
| 3353 | __ ucomisd(value, value); |
| 3354 | __ j(parity_odd, &have_value); // NaN. |
| 3355 | |
| 3356 | ExternalReference canonical_nan_reference = |
| 3357 | ExternalReference::address_of_canonical_non_hole_nan(); |
| 3358 | __ movdbl(value, Operand::StaticVariable(canonical_nan_reference)); |
| 3359 | __ bind(&have_value); |
| 3360 | |
| 3361 | Operand double_store_operand = BuildFastArrayOperand( |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3362 | instr->elements(), instr->key(), FAST_DOUBLE_ELEMENTS, |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3363 | FixedDoubleArray::kHeaderSize - kHeapObjectTag); |
| 3364 | __ movdbl(double_store_operand, value); |
| 3365 | } |
| 3366 | |
| 3367 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3368 | void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 3369 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3370 | ASSERT(ToRegister(instr->object()).is(edx)); |
| 3371 | ASSERT(ToRegister(instr->key()).is(ecx)); |
| 3372 | ASSERT(ToRegister(instr->value()).is(eax)); |
| 3373 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 3374 | Handle<Code> ic = (instr->strict_mode_flag() == kStrictMode) |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3375 | ? isolate()->builtins()->KeyedStoreIC_Initialize_Strict() |
| 3376 | : isolate()->builtins()->KeyedStoreIC_Initialize(); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3377 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3378 | } |
| 3379 | |
| 3380 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3381 | void LCodeGen::DoTransitionElementsKind(LTransitionElementsKind* instr) { |
| 3382 | Register object_reg = ToRegister(instr->object()); |
| 3383 | Register new_map_reg = ToRegister(instr->new_map_reg()); |
| 3384 | |
| 3385 | Handle<Map> from_map = instr->original_map(); |
| 3386 | Handle<Map> to_map = instr->transitioned_map(); |
| 3387 | ElementsKind from_kind = from_map->elements_kind(); |
| 3388 | ElementsKind to_kind = to_map->elements_kind(); |
| 3389 | |
| 3390 | Label not_applicable; |
| 3391 | __ cmp(FieldOperand(object_reg, HeapObject::kMapOffset), from_map); |
| 3392 | __ j(not_equal, ¬_applicable); |
| 3393 | __ mov(new_map_reg, to_map); |
| 3394 | if (from_kind == FAST_SMI_ONLY_ELEMENTS && to_kind == FAST_ELEMENTS) { |
| 3395 | Register object_reg = ToRegister(instr->object()); |
| 3396 | __ mov(FieldOperand(object_reg, HeapObject::kMapOffset), new_map_reg); |
| 3397 | // Write barrier. |
| 3398 | ASSERT_NE(instr->temp_reg(), NULL); |
| 3399 | __ RecordWriteField(object_reg, HeapObject::kMapOffset, new_map_reg, |
| 3400 | ToRegister(instr->temp_reg()), kDontSaveFPRegs); |
| 3401 | } else if (from_kind == FAST_SMI_ONLY_ELEMENTS && |
| 3402 | to_kind == FAST_DOUBLE_ELEMENTS) { |
| 3403 | Register fixed_object_reg = ToRegister(instr->temp_reg()); |
| 3404 | ASSERT(fixed_object_reg.is(edx)); |
| 3405 | ASSERT(new_map_reg.is(ebx)); |
| 3406 | __ mov(fixed_object_reg, object_reg); |
| 3407 | CallCode(isolate()->builtins()->TransitionElementsSmiToDouble(), |
| 3408 | RelocInfo::CODE_TARGET, instr); |
| 3409 | } else if (from_kind == FAST_DOUBLE_ELEMENTS && to_kind == FAST_ELEMENTS) { |
| 3410 | Register fixed_object_reg = ToRegister(instr->temp_reg()); |
| 3411 | ASSERT(fixed_object_reg.is(edx)); |
| 3412 | ASSERT(new_map_reg.is(ebx)); |
| 3413 | __ mov(fixed_object_reg, object_reg); |
| 3414 | CallCode(isolate()->builtins()->TransitionElementsDoubleToObject(), |
| 3415 | RelocInfo::CODE_TARGET, instr); |
| 3416 | } else { |
| 3417 | UNREACHABLE(); |
| 3418 | } |
| 3419 | __ bind(¬_applicable); |
| 3420 | } |
| 3421 | |
| 3422 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3423 | void LCodeGen::DoStringCharCodeAt(LStringCharCodeAt* instr) { |
| 3424 | class DeferredStringCharCodeAt: public LDeferredCode { |
| 3425 | public: |
| 3426 | DeferredStringCharCodeAt(LCodeGen* codegen, LStringCharCodeAt* instr) |
| 3427 | : LDeferredCode(codegen), instr_(instr) { } |
| 3428 | virtual void Generate() { codegen()->DoDeferredStringCharCodeAt(instr_); } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3429 | virtual LInstruction* instr() { return instr_; } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3430 | private: |
| 3431 | LStringCharCodeAt* instr_; |
| 3432 | }; |
| 3433 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3434 | DeferredStringCharCodeAt* deferred = |
| 3435 | new DeferredStringCharCodeAt(this, instr); |
| 3436 | |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 3437 | StringCharLoadGenerator::Generate(masm(), |
| 3438 | factory(), |
| 3439 | ToRegister(instr->string()), |
| 3440 | ToRegister(instr->index()), |
| 3441 | ToRegister(instr->result()), |
| 3442 | deferred->entry()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3443 | __ bind(deferred->exit()); |
| 3444 | } |
| 3445 | |
| 3446 | |
| 3447 | void LCodeGen::DoDeferredStringCharCodeAt(LStringCharCodeAt* instr) { |
| 3448 | Register string = ToRegister(instr->string()); |
| 3449 | Register result = ToRegister(instr->result()); |
| 3450 | |
| 3451 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 3452 | // result register contain a valid pointer because it is already |
| 3453 | // contained in the register pointer map. |
| 3454 | __ Set(result, Immediate(0)); |
| 3455 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3456 | PushSafepointRegistersScope scope(this); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3457 | __ push(string); |
| 3458 | // Push the index as a smi. This is safe because of the checks in |
| 3459 | // DoStringCharCodeAt above. |
| 3460 | STATIC_ASSERT(String::kMaxLength <= Smi::kMaxValue); |
| 3461 | if (instr->index()->IsConstantOperand()) { |
| 3462 | int const_index = ToInteger32(LConstantOperand::cast(instr->index())); |
| 3463 | __ push(Immediate(Smi::FromInt(const_index))); |
| 3464 | } else { |
| 3465 | Register index = ToRegister(instr->index()); |
| 3466 | __ SmiTag(index); |
| 3467 | __ push(index); |
| 3468 | } |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3469 | CallRuntimeFromDeferred(Runtime::kStringCharCodeAt, 2, |
| 3470 | instr, instr->context()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3471 | if (FLAG_debug_code) { |
| 3472 | __ AbortIfNotSmi(eax); |
| 3473 | } |
| 3474 | __ SmiUntag(eax); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3475 | __ StoreToSafepointRegisterSlot(result, eax); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3476 | } |
| 3477 | |
| 3478 | |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 3479 | void LCodeGen::DoStringCharFromCode(LStringCharFromCode* instr) { |
| 3480 | class DeferredStringCharFromCode: public LDeferredCode { |
| 3481 | public: |
| 3482 | DeferredStringCharFromCode(LCodeGen* codegen, LStringCharFromCode* instr) |
| 3483 | : LDeferredCode(codegen), instr_(instr) { } |
| 3484 | virtual void Generate() { codegen()->DoDeferredStringCharFromCode(instr_); } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3485 | virtual LInstruction* instr() { return instr_; } |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 3486 | private: |
| 3487 | LStringCharFromCode* instr_; |
| 3488 | }; |
| 3489 | |
| 3490 | DeferredStringCharFromCode* deferred = |
| 3491 | new DeferredStringCharFromCode(this, instr); |
| 3492 | |
| 3493 | ASSERT(instr->hydrogen()->value()->representation().IsInteger32()); |
| 3494 | Register char_code = ToRegister(instr->char_code()); |
| 3495 | Register result = ToRegister(instr->result()); |
| 3496 | ASSERT(!char_code.is(result)); |
| 3497 | |
| 3498 | __ cmp(char_code, String::kMaxAsciiCharCode); |
| 3499 | __ j(above, deferred->entry()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3500 | __ Set(result, Immediate(factory()->single_character_string_cache())); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 3501 | __ mov(result, FieldOperand(result, |
| 3502 | char_code, times_pointer_size, |
| 3503 | FixedArray::kHeaderSize)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3504 | __ cmp(result, factory()->undefined_value()); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 3505 | __ j(equal, deferred->entry()); |
| 3506 | __ bind(deferred->exit()); |
| 3507 | } |
| 3508 | |
| 3509 | |
| 3510 | void LCodeGen::DoDeferredStringCharFromCode(LStringCharFromCode* instr) { |
| 3511 | Register char_code = ToRegister(instr->char_code()); |
| 3512 | Register result = ToRegister(instr->result()); |
| 3513 | |
| 3514 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 3515 | // result register contain a valid pointer because it is already |
| 3516 | // contained in the register pointer map. |
| 3517 | __ Set(result, Immediate(0)); |
| 3518 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3519 | PushSafepointRegistersScope scope(this); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 3520 | __ SmiTag(char_code); |
| 3521 | __ push(char_code); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3522 | CallRuntimeFromDeferred(Runtime::kCharFromCode, 1, instr, instr->context()); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 3523 | __ StoreToSafepointRegisterSlot(result, eax); |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 3524 | } |
| 3525 | |
| 3526 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3527 | void LCodeGen::DoStringLength(LStringLength* instr) { |
| 3528 | Register string = ToRegister(instr->string()); |
| 3529 | Register result = ToRegister(instr->result()); |
| 3530 | __ mov(result, FieldOperand(string, String::kLengthOffset)); |
| 3531 | } |
| 3532 | |
| 3533 | |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 3534 | void LCodeGen::DoStringAdd(LStringAdd* instr) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 3535 | EmitPushTaggedOperand(instr->left()); |
| 3536 | EmitPushTaggedOperand(instr->right()); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 3537 | StringAddStub stub(NO_STRING_CHECK_IN_STUB); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3538 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 3539 | } |
| 3540 | |
| 3541 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3542 | void LCodeGen::DoInteger32ToDouble(LInteger32ToDouble* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3543 | LOperand* input = instr->InputAt(0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3544 | ASSERT(input->IsRegister() || input->IsStackSlot()); |
| 3545 | LOperand* output = instr->result(); |
| 3546 | ASSERT(output->IsDoubleRegister()); |
| 3547 | __ cvtsi2sd(ToDoubleRegister(output), ToOperand(input)); |
| 3548 | } |
| 3549 | |
| 3550 | |
| 3551 | void LCodeGen::DoNumberTagI(LNumberTagI* instr) { |
| 3552 | class DeferredNumberTagI: public LDeferredCode { |
| 3553 | public: |
| 3554 | DeferredNumberTagI(LCodeGen* codegen, LNumberTagI* instr) |
| 3555 | : LDeferredCode(codegen), instr_(instr) { } |
| 3556 | virtual void Generate() { codegen()->DoDeferredNumberTagI(instr_); } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3557 | virtual LInstruction* instr() { return instr_; } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3558 | private: |
| 3559 | LNumberTagI* instr_; |
| 3560 | }; |
| 3561 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3562 | LOperand* input = instr->InputAt(0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3563 | ASSERT(input->IsRegister() && input->Equals(instr->result())); |
| 3564 | Register reg = ToRegister(input); |
| 3565 | |
| 3566 | DeferredNumberTagI* deferred = new DeferredNumberTagI(this, instr); |
| 3567 | __ SmiTag(reg); |
| 3568 | __ j(overflow, deferred->entry()); |
| 3569 | __ bind(deferred->exit()); |
| 3570 | } |
| 3571 | |
| 3572 | |
| 3573 | void LCodeGen::DoDeferredNumberTagI(LNumberTagI* instr) { |
| 3574 | Label slow; |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3575 | Register reg = ToRegister(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3576 | Register tmp = reg.is(eax) ? ecx : eax; |
| 3577 | |
| 3578 | // Preserve the value of all registers. |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3579 | PushSafepointRegistersScope scope(this); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3580 | |
| 3581 | // There was overflow, so bits 30 and 31 of the original integer |
| 3582 | // disagree. Try to allocate a heap number in new space and store |
| 3583 | // the value in there. If that fails, call the runtime system. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3584 | Label done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3585 | __ SmiUntag(reg); |
| 3586 | __ xor_(reg, 0x80000000); |
| 3587 | __ cvtsi2sd(xmm0, Operand(reg)); |
| 3588 | if (FLAG_inline_new) { |
| 3589 | __ AllocateHeapNumber(reg, tmp, no_reg, &slow); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3590 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3591 | } |
| 3592 | |
| 3593 | // Slow case: Call the runtime system to do the number allocation. |
| 3594 | __ bind(&slow); |
| 3595 | |
| 3596 | // TODO(3095996): Put a valid pointer value in the stack slot where the result |
| 3597 | // register is stored, as this register is in the pointer map, but contains an |
| 3598 | // integer value. |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3599 | __ StoreToSafepointRegisterSlot(reg, Immediate(0)); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3600 | // NumberTagI and NumberTagD use the context from the frame, rather than |
| 3601 | // the environment's HContext or HInlinedContext value. |
| 3602 | // They only call Runtime::kAllocateHeapNumber. |
| 3603 | // The corresponding HChange instructions are added in a phase that does |
| 3604 | // not have easy access to the local context. |
| 3605 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 3606 | __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); |
| 3607 | RecordSafepointWithRegisters( |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 3608 | instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3609 | if (!reg.is(eax)) __ mov(reg, eax); |
| 3610 | |
| 3611 | // Done. Put the value in xmm0 into the value of the allocated heap |
| 3612 | // number. |
| 3613 | __ bind(&done); |
| 3614 | __ movdbl(FieldOperand(reg, HeapNumber::kValueOffset), xmm0); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3615 | __ StoreToSafepointRegisterSlot(reg, reg); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3616 | } |
| 3617 | |
| 3618 | |
| 3619 | void LCodeGen::DoNumberTagD(LNumberTagD* instr) { |
| 3620 | class DeferredNumberTagD: public LDeferredCode { |
| 3621 | public: |
| 3622 | DeferredNumberTagD(LCodeGen* codegen, LNumberTagD* instr) |
| 3623 | : LDeferredCode(codegen), instr_(instr) { } |
| 3624 | virtual void Generate() { codegen()->DoDeferredNumberTagD(instr_); } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3625 | virtual LInstruction* instr() { return instr_; } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3626 | private: |
| 3627 | LNumberTagD* instr_; |
| 3628 | }; |
| 3629 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3630 | XMMRegister input_reg = ToDoubleRegister(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3631 | Register reg = ToRegister(instr->result()); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3632 | Register tmp = ToRegister(instr->TempAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3633 | |
| 3634 | DeferredNumberTagD* deferred = new DeferredNumberTagD(this, instr); |
| 3635 | if (FLAG_inline_new) { |
| 3636 | __ AllocateHeapNumber(reg, tmp, no_reg, deferred->entry()); |
| 3637 | } else { |
| 3638 | __ jmp(deferred->entry()); |
| 3639 | } |
| 3640 | __ bind(deferred->exit()); |
| 3641 | __ movdbl(FieldOperand(reg, HeapNumber::kValueOffset), input_reg); |
| 3642 | } |
| 3643 | |
| 3644 | |
| 3645 | void LCodeGen::DoDeferredNumberTagD(LNumberTagD* instr) { |
| 3646 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 3647 | // result register contain a valid pointer because it is already |
| 3648 | // contained in the register pointer map. |
| 3649 | Register reg = ToRegister(instr->result()); |
| 3650 | __ Set(reg, Immediate(0)); |
| 3651 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 3652 | PushSafepointRegistersScope scope(this); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 3653 | // NumberTagI and NumberTagD use the context from the frame, rather than |
| 3654 | // the environment's HContext or HInlinedContext value. |
| 3655 | // They only call Runtime::kAllocateHeapNumber. |
| 3656 | // The corresponding HChange instructions are added in a phase that does |
| 3657 | // not have easy access to the local context. |
| 3658 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 3659 | __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 3660 | RecordSafepointWithRegisters( |
| 3661 | instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 3662 | __ StoreToSafepointRegisterSlot(reg, eax); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3663 | } |
| 3664 | |
| 3665 | |
| 3666 | void LCodeGen::DoSmiTag(LSmiTag* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3667 | LOperand* input = instr->InputAt(0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3668 | ASSERT(input->IsRegister() && input->Equals(instr->result())); |
| 3669 | ASSERT(!instr->hydrogen_value()->CheckFlag(HValue::kCanOverflow)); |
| 3670 | __ SmiTag(ToRegister(input)); |
| 3671 | } |
| 3672 | |
| 3673 | |
| 3674 | void LCodeGen::DoSmiUntag(LSmiUntag* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3675 | LOperand* input = instr->InputAt(0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3676 | ASSERT(input->IsRegister() && input->Equals(instr->result())); |
| 3677 | if (instr->needs_check()) { |
| 3678 | __ test(ToRegister(input), Immediate(kSmiTagMask)); |
| 3679 | DeoptimizeIf(not_zero, instr->environment()); |
| 3680 | } |
| 3681 | __ SmiUntag(ToRegister(input)); |
| 3682 | } |
| 3683 | |
| 3684 | |
| 3685 | void LCodeGen::EmitNumberUntagD(Register input_reg, |
| 3686 | XMMRegister result_reg, |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3687 | bool deoptimize_on_undefined, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3688 | LEnvironment* env) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3689 | Label load_smi, done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3690 | |
| 3691 | // Smi check. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 3692 | __ JumpIfSmi(input_reg, &load_smi, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3693 | |
| 3694 | // Heap number map check. |
| 3695 | __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3696 | factory()->heap_number_map()); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3697 | if (deoptimize_on_undefined) { |
| 3698 | DeoptimizeIf(not_equal, env); |
| 3699 | } else { |
| 3700 | Label heap_number; |
| 3701 | __ j(equal, &heap_number, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3702 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3703 | __ cmp(input_reg, factory()->undefined_value()); |
| 3704 | DeoptimizeIf(not_equal, env); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3705 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3706 | // Convert undefined to NaN. |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3707 | ExternalReference nan = |
| 3708 | ExternalReference::address_of_canonical_non_hole_nan(); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3709 | __ movdbl(result_reg, Operand::StaticVariable(nan)); |
| 3710 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3711 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3712 | __ bind(&heap_number); |
| 3713 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3714 | // Heap number to XMM conversion. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3715 | __ movdbl(result_reg, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3716 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3717 | |
| 3718 | // Smi to XMM conversion |
| 3719 | __ bind(&load_smi); |
| 3720 | __ SmiUntag(input_reg); // Untag smi before converting to float. |
| 3721 | __ cvtsi2sd(result_reg, Operand(input_reg)); |
| 3722 | __ SmiTag(input_reg); // Retag smi. |
| 3723 | __ bind(&done); |
| 3724 | } |
| 3725 | |
| 3726 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3727 | void LCodeGen::DoDeferredTaggedToI(LTaggedToI* instr) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3728 | Label done, heap_number; |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3729 | Register input_reg = ToRegister(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3730 | |
| 3731 | // Heap number map check. |
| 3732 | __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3733 | factory()->heap_number_map()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3734 | |
| 3735 | if (instr->truncating()) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3736 | __ j(equal, &heap_number, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3737 | // Check for undefined. Undefined is converted to zero for truncating |
| 3738 | // conversions. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3739 | __ cmp(input_reg, factory()->undefined_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3740 | DeoptimizeIf(not_equal, instr->environment()); |
| 3741 | __ mov(input_reg, 0); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3742 | __ jmp(&done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3743 | |
| 3744 | __ bind(&heap_number); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 3745 | if (CpuFeatures::IsSupported(SSE3)) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3746 | CpuFeatures::Scope scope(SSE3); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3747 | Label convert; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3748 | // Use more powerful conversion when sse3 is available. |
| 3749 | // Load x87 register with heap number. |
| 3750 | __ fld_d(FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 3751 | // Get exponent alone and check for too-big exponent. |
| 3752 | __ mov(input_reg, FieldOperand(input_reg, HeapNumber::kExponentOffset)); |
| 3753 | __ and_(input_reg, HeapNumber::kExponentMask); |
| 3754 | const uint32_t kTooBigExponent = |
| 3755 | (HeapNumber::kExponentBias + 63) << HeapNumber::kExponentShift; |
| 3756 | __ cmp(Operand(input_reg), Immediate(kTooBigExponent)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3757 | __ j(less, &convert, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3758 | // Pop FPU stack before deoptimizing. |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 3759 | __ fstp(0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3760 | DeoptimizeIf(no_condition, instr->environment()); |
| 3761 | |
| 3762 | // Reserve space for 64 bit answer. |
| 3763 | __ bind(&convert); |
| 3764 | __ sub(Operand(esp), Immediate(kDoubleSize)); |
| 3765 | // Do conversion, which cannot fail because we checked the exponent. |
| 3766 | __ fisttp_d(Operand(esp, 0)); |
| 3767 | __ mov(input_reg, Operand(esp, 0)); // Low word of answer is the result. |
| 3768 | __ add(Operand(esp), Immediate(kDoubleSize)); |
| 3769 | } else { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3770 | XMMRegister xmm_temp = ToDoubleRegister(instr->TempAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3771 | __ movdbl(xmm0, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 3772 | __ cvttsd2si(input_reg, Operand(xmm0)); |
| 3773 | __ cmp(input_reg, 0x80000000u); |
| 3774 | __ j(not_equal, &done); |
| 3775 | // Check if the input was 0x8000000 (kMinInt). |
| 3776 | // If no, then we got an overflow and we deoptimize. |
| 3777 | ExternalReference min_int = ExternalReference::address_of_min_int(); |
| 3778 | __ movdbl(xmm_temp, Operand::StaticVariable(min_int)); |
| 3779 | __ ucomisd(xmm_temp, xmm0); |
| 3780 | DeoptimizeIf(not_equal, instr->environment()); |
| 3781 | DeoptimizeIf(parity_even, instr->environment()); // NaN. |
| 3782 | } |
| 3783 | } else { |
| 3784 | // Deoptimize if we don't have a heap number. |
| 3785 | DeoptimizeIf(not_equal, instr->environment()); |
| 3786 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3787 | XMMRegister xmm_temp = ToDoubleRegister(instr->TempAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3788 | __ movdbl(xmm0, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 3789 | __ cvttsd2si(input_reg, Operand(xmm0)); |
| 3790 | __ cvtsi2sd(xmm_temp, Operand(input_reg)); |
| 3791 | __ ucomisd(xmm0, xmm_temp); |
| 3792 | DeoptimizeIf(not_equal, instr->environment()); |
| 3793 | DeoptimizeIf(parity_even, instr->environment()); // NaN. |
| 3794 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 3795 | __ test(input_reg, Operand(input_reg)); |
| 3796 | __ j(not_zero, &done); |
| 3797 | __ movmskpd(input_reg, xmm0); |
| 3798 | __ and_(input_reg, 1); |
| 3799 | DeoptimizeIf(not_zero, instr->environment()); |
| 3800 | } |
| 3801 | } |
| 3802 | __ bind(&done); |
| 3803 | } |
| 3804 | |
| 3805 | |
| 3806 | void LCodeGen::DoTaggedToI(LTaggedToI* instr) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3807 | class DeferredTaggedToI: public LDeferredCode { |
| 3808 | public: |
| 3809 | DeferredTaggedToI(LCodeGen* codegen, LTaggedToI* instr) |
| 3810 | : LDeferredCode(codegen), instr_(instr) { } |
| 3811 | virtual void Generate() { codegen()->DoDeferredTaggedToI(instr_); } |
| 3812 | virtual LInstruction* instr() { return instr_; } |
| 3813 | private: |
| 3814 | LTaggedToI* instr_; |
| 3815 | }; |
| 3816 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3817 | LOperand* input = instr->InputAt(0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3818 | ASSERT(input->IsRegister()); |
| 3819 | ASSERT(input->Equals(instr->result())); |
| 3820 | |
| 3821 | Register input_reg = ToRegister(input); |
| 3822 | |
| 3823 | DeferredTaggedToI* deferred = new DeferredTaggedToI(this, instr); |
| 3824 | |
| 3825 | // Smi check. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 3826 | __ JumpIfNotSmi(input_reg, deferred->entry()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3827 | |
| 3828 | // Smi to int32 conversion |
| 3829 | __ SmiUntag(input_reg); // Untag smi. |
| 3830 | |
| 3831 | __ bind(deferred->exit()); |
| 3832 | } |
| 3833 | |
| 3834 | |
| 3835 | void LCodeGen::DoNumberUntagD(LNumberUntagD* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3836 | LOperand* input = instr->InputAt(0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3837 | ASSERT(input->IsRegister()); |
| 3838 | LOperand* result = instr->result(); |
| 3839 | ASSERT(result->IsDoubleRegister()); |
| 3840 | |
| 3841 | Register input_reg = ToRegister(input); |
| 3842 | XMMRegister result_reg = ToDoubleRegister(result); |
| 3843 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3844 | EmitNumberUntagD(input_reg, result_reg, |
| 3845 | instr->hydrogen()->deoptimize_on_undefined(), |
| 3846 | instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3847 | } |
| 3848 | |
| 3849 | |
| 3850 | void LCodeGen::DoDoubleToI(LDoubleToI* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3851 | LOperand* input = instr->InputAt(0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3852 | ASSERT(input->IsDoubleRegister()); |
| 3853 | LOperand* result = instr->result(); |
| 3854 | ASSERT(result->IsRegister()); |
| 3855 | |
| 3856 | XMMRegister input_reg = ToDoubleRegister(input); |
| 3857 | Register result_reg = ToRegister(result); |
| 3858 | |
| 3859 | if (instr->truncating()) { |
| 3860 | // Performs a truncating conversion of a floating point number as used by |
| 3861 | // the JS bitwise operations. |
| 3862 | __ cvttsd2si(result_reg, Operand(input_reg)); |
| 3863 | __ cmp(result_reg, 0x80000000u); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 3864 | if (CpuFeatures::IsSupported(SSE3)) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3865 | // This will deoptimize if the exponent of the input in out of range. |
| 3866 | CpuFeatures::Scope scope(SSE3); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3867 | Label convert, done; |
| 3868 | __ j(not_equal, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3869 | __ sub(Operand(esp), Immediate(kDoubleSize)); |
| 3870 | __ movdbl(Operand(esp, 0), input_reg); |
| 3871 | // Get exponent alone and check for too-big exponent. |
| 3872 | __ mov(result_reg, Operand(esp, sizeof(int32_t))); |
| 3873 | __ and_(result_reg, HeapNumber::kExponentMask); |
| 3874 | const uint32_t kTooBigExponent = |
| 3875 | (HeapNumber::kExponentBias + 63) << HeapNumber::kExponentShift; |
| 3876 | __ cmp(Operand(result_reg), Immediate(kTooBigExponent)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3877 | __ j(less, &convert, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3878 | __ add(Operand(esp), Immediate(kDoubleSize)); |
| 3879 | DeoptimizeIf(no_condition, instr->environment()); |
| 3880 | __ bind(&convert); |
| 3881 | // Do conversion, which cannot fail because we checked the exponent. |
| 3882 | __ fld_d(Operand(esp, 0)); |
| 3883 | __ fisttp_d(Operand(esp, 0)); |
| 3884 | __ mov(result_reg, Operand(esp, 0)); // Low word of answer is the result. |
| 3885 | __ add(Operand(esp), Immediate(kDoubleSize)); |
| 3886 | __ bind(&done); |
| 3887 | } else { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3888 | Label done; |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3889 | Register temp_reg = ToRegister(instr->TempAt(0)); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 3890 | XMMRegister xmm_scratch = xmm0; |
| 3891 | |
| 3892 | // If cvttsd2si succeeded, we're done. Otherwise, we attempt |
| 3893 | // manual conversion. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3894 | __ j(not_equal, &done, Label::kNear); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 3895 | |
| 3896 | // Get high 32 bits of the input in result_reg and temp_reg. |
| 3897 | __ pshufd(xmm_scratch, input_reg, 1); |
| 3898 | __ movd(Operand(temp_reg), xmm_scratch); |
| 3899 | __ mov(result_reg, temp_reg); |
| 3900 | |
| 3901 | // Prepare negation mask in temp_reg. |
| 3902 | __ sar(temp_reg, kBitsPerInt - 1); |
| 3903 | |
| 3904 | // Extract the exponent from result_reg and subtract adjusted |
| 3905 | // bias from it. The adjustment is selected in a way such that |
| 3906 | // when the difference is zero, the answer is in the low 32 bits |
| 3907 | // of the input, otherwise a shift has to be performed. |
| 3908 | __ shr(result_reg, HeapNumber::kExponentShift); |
| 3909 | __ and_(result_reg, |
| 3910 | HeapNumber::kExponentMask >> HeapNumber::kExponentShift); |
| 3911 | __ sub(Operand(result_reg), |
| 3912 | Immediate(HeapNumber::kExponentBias + |
| 3913 | HeapNumber::kExponentBits + |
| 3914 | HeapNumber::kMantissaBits)); |
| 3915 | // Don't handle big (> kMantissaBits + kExponentBits == 63) or |
| 3916 | // special exponents. |
| 3917 | DeoptimizeIf(greater, instr->environment()); |
| 3918 | |
| 3919 | // Zero out the sign and the exponent in the input (by shifting |
| 3920 | // it to the left) and restore the implicit mantissa bit, |
| 3921 | // i.e. convert the input to unsigned int64 shifted left by |
| 3922 | // kExponentBits. |
| 3923 | ExternalReference minus_zero = ExternalReference::address_of_minus_zero(); |
| 3924 | // Minus zero has the most significant bit set and the other |
| 3925 | // bits cleared. |
| 3926 | __ movdbl(xmm_scratch, Operand::StaticVariable(minus_zero)); |
| 3927 | __ psllq(input_reg, HeapNumber::kExponentBits); |
| 3928 | __ por(input_reg, xmm_scratch); |
| 3929 | |
| 3930 | // Get the amount to shift the input right in xmm_scratch. |
| 3931 | __ neg(result_reg); |
| 3932 | __ movd(xmm_scratch, Operand(result_reg)); |
| 3933 | |
| 3934 | // Shift the input right and extract low 32 bits. |
| 3935 | __ psrlq(input_reg, xmm_scratch); |
| 3936 | __ movd(Operand(result_reg), input_reg); |
| 3937 | |
| 3938 | // Use the prepared mask in temp_reg to negate the result if necessary. |
| 3939 | __ xor_(result_reg, Operand(temp_reg)); |
| 3940 | __ sub(result_reg, Operand(temp_reg)); |
| 3941 | __ bind(&done); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3942 | } |
| 3943 | } else { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3944 | Label done; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3945 | __ cvttsd2si(result_reg, Operand(input_reg)); |
| 3946 | __ cvtsi2sd(xmm0, Operand(result_reg)); |
| 3947 | __ ucomisd(xmm0, input_reg); |
| 3948 | DeoptimizeIf(not_equal, instr->environment()); |
| 3949 | DeoptimizeIf(parity_even, instr->environment()); // NaN. |
| 3950 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 3951 | // The integer converted back is equal to the original. We |
| 3952 | // only have to test if we got -0 as an input. |
| 3953 | __ test(result_reg, Operand(result_reg)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3954 | __ j(not_zero, &done, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3955 | __ movmskpd(result_reg, input_reg); |
| 3956 | // Bit 0 contains the sign of the double in input_reg. |
| 3957 | // If input was positive, we are ok and return 0, otherwise |
| 3958 | // deoptimize. |
| 3959 | __ and_(result_reg, 1); |
| 3960 | DeoptimizeIf(not_zero, instr->environment()); |
| 3961 | } |
| 3962 | __ bind(&done); |
| 3963 | } |
| 3964 | } |
| 3965 | |
| 3966 | |
| 3967 | void LCodeGen::DoCheckSmi(LCheckSmi* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3968 | LOperand* input = instr->InputAt(0); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 3969 | __ test(ToOperand(input), Immediate(kSmiTagMask)); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 3970 | DeoptimizeIf(not_zero, instr->environment()); |
| 3971 | } |
| 3972 | |
| 3973 | |
| 3974 | void LCodeGen::DoCheckNonSmi(LCheckNonSmi* instr) { |
| 3975 | LOperand* input = instr->InputAt(0); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 3976 | __ test(ToOperand(input), Immediate(kSmiTagMask)); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 3977 | DeoptimizeIf(zero, instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3978 | } |
| 3979 | |
| 3980 | |
| 3981 | void LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 3982 | Register input = ToRegister(instr->InputAt(0)); |
| 3983 | Register temp = ToRegister(instr->TempAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3984 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3985 | __ mov(temp, FieldOperand(input, HeapObject::kMapOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3986 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3987 | if (instr->hydrogen()->is_interval_check()) { |
| 3988 | InstanceType first; |
| 3989 | InstanceType last; |
| 3990 | instr->hydrogen()->GetCheckInterval(&first, &last); |
| 3991 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3992 | __ cmpb(FieldOperand(temp, Map::kInstanceTypeOffset), |
| 3993 | static_cast<int8_t>(first)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 3994 | |
| 3995 | // If there is only one type in the interval check for equality. |
| 3996 | if (first == last) { |
| 3997 | DeoptimizeIf(not_equal, instr->environment()); |
| 3998 | } else { |
| 3999 | DeoptimizeIf(below, instr->environment()); |
| 4000 | // Omit check for the last type. |
| 4001 | if (last != LAST_TYPE) { |
| 4002 | __ cmpb(FieldOperand(temp, Map::kInstanceTypeOffset), |
| 4003 | static_cast<int8_t>(last)); |
| 4004 | DeoptimizeIf(above, instr->environment()); |
| 4005 | } |
| 4006 | } |
| 4007 | } else { |
| 4008 | uint8_t mask; |
| 4009 | uint8_t tag; |
| 4010 | instr->hydrogen()->GetCheckMaskAndTag(&mask, &tag); |
| 4011 | |
| 4012 | if (IsPowerOf2(mask)) { |
| 4013 | ASSERT(tag == 0 || IsPowerOf2(tag)); |
| 4014 | __ test_b(FieldOperand(temp, Map::kInstanceTypeOffset), mask); |
| 4015 | DeoptimizeIf(tag == 0 ? not_zero : zero, instr->environment()); |
| 4016 | } else { |
| 4017 | __ movzx_b(temp, FieldOperand(temp, Map::kInstanceTypeOffset)); |
| 4018 | __ and_(temp, mask); |
| 4019 | __ cmpb(Operand(temp), tag); |
| 4020 | DeoptimizeIf(not_equal, instr->environment()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4021 | } |
| 4022 | } |
| 4023 | } |
| 4024 | |
| 4025 | |
| 4026 | void LCodeGen::DoCheckFunction(LCheckFunction* instr) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4027 | Handle<JSFunction> target = instr->hydrogen()->target(); |
| 4028 | if (isolate()->heap()->InNewSpace(*target)) { |
| 4029 | Register reg = ToRegister(instr->value()); |
| 4030 | Handle<JSGlobalPropertyCell> cell = |
| 4031 | isolate()->factory()->NewJSGlobalPropertyCell(target); |
| 4032 | __ cmp(reg, Operand::Cell(cell)); |
| 4033 | } else { |
| 4034 | Operand operand = ToOperand(instr->value()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4035 | __ cmp(operand, target); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4036 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4037 | DeoptimizeIf(not_equal, instr->environment()); |
| 4038 | } |
| 4039 | |
| 4040 | |
| 4041 | void LCodeGen::DoCheckMap(LCheckMap* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 4042 | LOperand* input = instr->InputAt(0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4043 | ASSERT(input->IsRegister()); |
| 4044 | Register reg = ToRegister(input); |
| 4045 | __ cmp(FieldOperand(reg, HeapObject::kMapOffset), |
| 4046 | instr->hydrogen()->map()); |
| 4047 | DeoptimizeIf(not_equal, instr->environment()); |
| 4048 | } |
| 4049 | |
| 4050 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4051 | void LCodeGen::DoClampDToUint8(LClampDToUint8* instr) { |
| 4052 | XMMRegister value_reg = ToDoubleRegister(instr->unclamped()); |
| 4053 | Register result_reg = ToRegister(instr->result()); |
| 4054 | __ ClampDoubleToUint8(value_reg, xmm0, result_reg); |
| 4055 | } |
| 4056 | |
| 4057 | |
| 4058 | void LCodeGen::DoClampIToUint8(LClampIToUint8* instr) { |
| 4059 | ASSERT(instr->unclamped()->Equals(instr->result())); |
| 4060 | Register value_reg = ToRegister(instr->result()); |
| 4061 | __ ClampUint8(value_reg); |
| 4062 | } |
| 4063 | |
| 4064 | |
| 4065 | void LCodeGen::DoClampTToUint8(LClampTToUint8* instr) { |
| 4066 | ASSERT(instr->unclamped()->Equals(instr->result())); |
| 4067 | Register input_reg = ToRegister(instr->unclamped()); |
| 4068 | Label is_smi, done, heap_number; |
| 4069 | |
| 4070 | __ JumpIfSmi(input_reg, &is_smi); |
| 4071 | |
| 4072 | // Check for heap number |
| 4073 | __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
| 4074 | factory()->heap_number_map()); |
| 4075 | __ j(equal, &heap_number, Label::kNear); |
| 4076 | |
| 4077 | // Check for undefined. Undefined is converted to zero for clamping |
| 4078 | // conversions. |
| 4079 | __ cmp(input_reg, factory()->undefined_value()); |
| 4080 | DeoptimizeIf(not_equal, instr->environment()); |
| 4081 | __ mov(input_reg, 0); |
| 4082 | __ jmp(&done, Label::kNear); |
| 4083 | |
| 4084 | // Heap number |
| 4085 | __ bind(&heap_number); |
| 4086 | __ movdbl(xmm0, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 4087 | __ ClampDoubleToUint8(xmm0, xmm1, input_reg); |
| 4088 | __ jmp(&done, Label::kNear); |
| 4089 | |
| 4090 | // smi |
| 4091 | __ bind(&is_smi); |
| 4092 | __ SmiUntag(input_reg); |
| 4093 | __ ClampUint8(input_reg); |
| 4094 | |
| 4095 | __ bind(&done); |
| 4096 | } |
| 4097 | |
| 4098 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4099 | void LCodeGen::DoCheckPrototypeMaps(LCheckPrototypeMaps* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 4100 | Register reg = ToRegister(instr->TempAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4101 | |
| 4102 | Handle<JSObject> holder = instr->holder(); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 4103 | Handle<JSObject> current_prototype = instr->prototype(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4104 | |
| 4105 | // Load prototype object. |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4106 | __ LoadHeapObject(reg, current_prototype); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4107 | |
| 4108 | // Check prototype maps up to the holder. |
| 4109 | while (!current_prototype.is_identical_to(holder)) { |
| 4110 | __ cmp(FieldOperand(reg, HeapObject::kMapOffset), |
| 4111 | Handle<Map>(current_prototype->map())); |
| 4112 | DeoptimizeIf(not_equal, instr->environment()); |
| 4113 | current_prototype = |
| 4114 | Handle<JSObject>(JSObject::cast(current_prototype->GetPrototype())); |
| 4115 | // Load next prototype object. |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4116 | __ LoadHeapObject(reg, current_prototype); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4117 | } |
| 4118 | |
| 4119 | // Check the holder map. |
| 4120 | __ cmp(FieldOperand(reg, HeapObject::kMapOffset), |
| 4121 | Handle<Map>(current_prototype->map())); |
| 4122 | DeoptimizeIf(not_equal, instr->environment()); |
| 4123 | } |
| 4124 | |
| 4125 | |
| 4126 | void LCodeGen::DoArrayLiteral(LArrayLiteral* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4127 | ASSERT(ToRegister(instr->context()).is(esi)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4128 | Heap* heap = isolate()->heap(); |
| 4129 | ElementsKind boilerplate_elements_kind = |
| 4130 | instr->hydrogen()->boilerplate_elements_kind(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4131 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4132 | // Deopt if the array literal boilerplate ElementsKind is of a type different |
| 4133 | // than the expected one. The check isn't necessary if the boilerplate has |
| 4134 | // already been converted to FAST_ELEMENTS. |
| 4135 | if (boilerplate_elements_kind != FAST_ELEMENTS) { |
| 4136 | __ LoadHeapObject(eax, instr->hydrogen()->boilerplate_object()); |
| 4137 | __ mov(ebx, FieldOperand(eax, HeapObject::kMapOffset)); |
| 4138 | // Load the map's "bit field 2". We only need the first byte, |
| 4139 | // but the following masking takes care of that anyway. |
| 4140 | __ mov(ebx, FieldOperand(ebx, Map::kBitField2Offset)); |
| 4141 | // Retrieve elements_kind from bit field 2. |
| 4142 | __ and_(ebx, Map::kElementsKindMask); |
| 4143 | __ cmp(ebx, boilerplate_elements_kind << Map::kElementsKindShift); |
| 4144 | DeoptimizeIf(not_equal, instr->environment()); |
| 4145 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4146 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4147 | // Setup the parameters to the stub/runtime call. |
| 4148 | __ mov(eax, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 4149 | __ push(FieldOperand(eax, JSFunction::kLiteralsOffset)); |
| 4150 | __ push(Immediate(Smi::FromInt(instr->hydrogen()->literal_index()))); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4151 | // Boilerplate already exists, constant elements are never accessed. |
| 4152 | // Pass an empty fixed array. |
| 4153 | __ push(Immediate(Handle<FixedArray>(heap->empty_fixed_array()))); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4154 | |
| 4155 | // Pick the right runtime function or stub to call. |
| 4156 | int length = instr->hydrogen()->length(); |
| 4157 | if (instr->hydrogen()->IsCopyOnWrite()) { |
| 4158 | ASSERT(instr->hydrogen()->depth() == 1); |
| 4159 | FastCloneShallowArrayStub::Mode mode = |
| 4160 | FastCloneShallowArrayStub::COPY_ON_WRITE_ELEMENTS; |
| 4161 | FastCloneShallowArrayStub stub(mode, length); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4162 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4163 | } else if (instr->hydrogen()->depth() > 1) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4164 | CallRuntime(Runtime::kCreateArrayLiteral, 3, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4165 | } else if (length > FastCloneShallowArrayStub::kMaximumClonedLength) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4166 | CallRuntime(Runtime::kCreateArrayLiteralShallow, 3, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4167 | } else { |
| 4168 | FastCloneShallowArrayStub::Mode mode = |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4169 | boilerplate_elements_kind == FAST_DOUBLE_ELEMENTS |
| 4170 | ? FastCloneShallowArrayStub::CLONE_DOUBLE_ELEMENTS |
| 4171 | : FastCloneShallowArrayStub::CLONE_ELEMENTS; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4172 | FastCloneShallowArrayStub stub(mode, length); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4173 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4174 | } |
| 4175 | } |
| 4176 | |
| 4177 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4178 | void LCodeGen::EmitDeepCopy(Handle<JSObject> object, |
| 4179 | Register result, |
| 4180 | Register source, |
| 4181 | int* offset) { |
| 4182 | ASSERT(!source.is(ecx)); |
| 4183 | ASSERT(!result.is(ecx)); |
| 4184 | |
| 4185 | if (FLAG_debug_code) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4186 | __ LoadHeapObject(ecx, object); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4187 | __ cmp(source, ecx); |
| 4188 | __ Assert(equal, "Unexpected object literal boilerplate"); |
| 4189 | } |
| 4190 | |
| 4191 | // Increase the offset so that subsequent objects end up right after |
| 4192 | // this one. |
| 4193 | int current_offset = *offset; |
| 4194 | int size = object->map()->instance_size(); |
| 4195 | *offset += size; |
| 4196 | |
| 4197 | // Copy object header. |
| 4198 | ASSERT(object->properties()->length() == 0); |
| 4199 | ASSERT(object->elements()->length() == 0 || |
| 4200 | object->elements()->map() == isolate()->heap()->fixed_cow_array_map()); |
| 4201 | int inobject_properties = object->map()->inobject_properties(); |
| 4202 | int header_size = size - inobject_properties * kPointerSize; |
| 4203 | for (int i = 0; i < header_size; i += kPointerSize) { |
| 4204 | __ mov(ecx, FieldOperand(source, i)); |
| 4205 | __ mov(FieldOperand(result, current_offset + i), ecx); |
| 4206 | } |
| 4207 | |
| 4208 | // Copy in-object properties. |
| 4209 | for (int i = 0; i < inobject_properties; i++) { |
| 4210 | int total_offset = current_offset + object->GetInObjectPropertyOffset(i); |
| 4211 | Handle<Object> value = Handle<Object>(object->InObjectPropertyAt(i)); |
| 4212 | if (value->IsJSObject()) { |
| 4213 | Handle<JSObject> value_object = Handle<JSObject>::cast(value); |
| 4214 | __ lea(ecx, Operand(result, *offset)); |
| 4215 | __ mov(FieldOperand(result, total_offset), ecx); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4216 | __ LoadHeapObject(source, value_object); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4217 | EmitDeepCopy(value_object, result, source, offset); |
| 4218 | } else if (value->IsHeapObject()) { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4219 | __ LoadHeapObject(ecx, Handle<HeapObject>::cast(value)); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4220 | __ mov(FieldOperand(result, total_offset), ecx); |
| 4221 | } else { |
| 4222 | __ mov(FieldOperand(result, total_offset), Immediate(value)); |
| 4223 | } |
| 4224 | } |
| 4225 | } |
| 4226 | |
| 4227 | |
| 4228 | void LCodeGen::DoObjectLiteralFast(LObjectLiteralFast* instr) { |
| 4229 | ASSERT(ToRegister(instr->context()).is(esi)); |
| 4230 | int size = instr->hydrogen()->total_size(); |
| 4231 | |
| 4232 | // Allocate all objects that are part of the literal in one big |
| 4233 | // allocation. This avoids multiple limit checks. |
| 4234 | Label allocated, runtime_allocate; |
| 4235 | __ AllocateInNewSpace(size, eax, ecx, edx, &runtime_allocate, TAG_OBJECT); |
| 4236 | __ jmp(&allocated); |
| 4237 | |
| 4238 | __ bind(&runtime_allocate); |
| 4239 | __ push(Immediate(Smi::FromInt(size))); |
| 4240 | CallRuntime(Runtime::kAllocateInNewSpace, 1, instr); |
| 4241 | |
| 4242 | __ bind(&allocated); |
| 4243 | int offset = 0; |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4244 | __ LoadHeapObject(ebx, instr->hydrogen()->boilerplate()); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4245 | EmitDeepCopy(instr->hydrogen()->boilerplate(), eax, ebx, &offset); |
| 4246 | ASSERT_EQ(size, offset); |
| 4247 | } |
| 4248 | |
| 4249 | |
| 4250 | void LCodeGen::DoObjectLiteralGeneric(LObjectLiteralGeneric* instr) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 4251 | ASSERT(ToRegister(instr->context()).is(esi)); |
mstarzinger@chromium.org | f8c6bd5 | 2011-11-23 12:13:52 +0000 | [diff] [blame] | 4252 | Handle<FixedArray> constant_properties = |
| 4253 | instr->hydrogen()->constant_properties(); |
| 4254 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4255 | // Setup the parameters to the stub/runtime call. |
| 4256 | __ mov(eax, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 4257 | __ push(FieldOperand(eax, JSFunction::kLiteralsOffset)); |
| 4258 | __ push(Immediate(Smi::FromInt(instr->hydrogen()->literal_index()))); |
mstarzinger@chromium.org | f8c6bd5 | 2011-11-23 12:13:52 +0000 | [diff] [blame] | 4259 | __ push(Immediate(constant_properties)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4260 | int flags = instr->hydrogen()->fast_elements() |
| 4261 | ? ObjectLiteral::kFastElements |
| 4262 | : ObjectLiteral::kNoFlags; |
| 4263 | flags |= instr->hydrogen()->has_function() |
| 4264 | ? ObjectLiteral::kHasFunction |
| 4265 | : ObjectLiteral::kNoFlags; |
| 4266 | __ push(Immediate(Smi::FromInt(flags))); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4267 | |
mstarzinger@chromium.org | f8c6bd5 | 2011-11-23 12:13:52 +0000 | [diff] [blame] | 4268 | // Pick the right runtime function or stub to call. |
| 4269 | int properties_count = constant_properties->length() / 2; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4270 | if (instr->hydrogen()->depth() > 1) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4271 | CallRuntime(Runtime::kCreateObjectLiteral, 4, instr); |
mstarzinger@chromium.org | f8c6bd5 | 2011-11-23 12:13:52 +0000 | [diff] [blame] | 4272 | } else if (flags != ObjectLiteral::kFastElements || |
| 4273 | properties_count > FastCloneShallowObjectStub::kMaximumClonedProperties) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4274 | CallRuntime(Runtime::kCreateObjectLiteralShallow, 4, instr); |
mstarzinger@chromium.org | f8c6bd5 | 2011-11-23 12:13:52 +0000 | [diff] [blame] | 4275 | } else { |
| 4276 | FastCloneShallowObjectStub stub(properties_count); |
| 4277 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4278 | } |
| 4279 | } |
| 4280 | |
| 4281 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4282 | void LCodeGen::DoToFastProperties(LToFastProperties* instr) { |
| 4283 | ASSERT(ToRegister(instr->InputAt(0)).is(eax)); |
| 4284 | __ push(eax); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4285 | CallRuntime(Runtime::kToFastProperties, 1, instr); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4286 | } |
| 4287 | |
| 4288 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4289 | void LCodeGen::DoRegExpLiteral(LRegExpLiteral* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4290 | ASSERT(ToRegister(instr->context()).is(esi)); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4291 | Label materialized; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4292 | // Registers will be used as follows: |
| 4293 | // edi = JS function. |
| 4294 | // ecx = literals array. |
| 4295 | // ebx = regexp literal. |
| 4296 | // eax = regexp literal clone. |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4297 | // esi = context. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4298 | __ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 4299 | __ mov(ecx, FieldOperand(edi, JSFunction::kLiteralsOffset)); |
| 4300 | int literal_offset = FixedArray::kHeaderSize + |
| 4301 | instr->hydrogen()->literal_index() * kPointerSize; |
| 4302 | __ mov(ebx, FieldOperand(ecx, literal_offset)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4303 | __ cmp(ebx, factory()->undefined_value()); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4304 | __ j(not_equal, &materialized, Label::kNear); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4305 | |
| 4306 | // Create regexp literal using runtime function |
| 4307 | // Result will be in eax. |
| 4308 | __ push(ecx); |
| 4309 | __ push(Immediate(Smi::FromInt(instr->hydrogen()->literal_index()))); |
| 4310 | __ push(Immediate(instr->hydrogen()->pattern())); |
| 4311 | __ push(Immediate(instr->hydrogen()->flags())); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4312 | CallRuntime(Runtime::kMaterializeRegExpLiteral, 4, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4313 | __ mov(ebx, eax); |
| 4314 | |
| 4315 | __ bind(&materialized); |
| 4316 | int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize; |
| 4317 | Label allocated, runtime_allocate; |
| 4318 | __ AllocateInNewSpace(size, eax, ecx, edx, &runtime_allocate, TAG_OBJECT); |
| 4319 | __ jmp(&allocated); |
| 4320 | |
| 4321 | __ bind(&runtime_allocate); |
| 4322 | __ push(ebx); |
| 4323 | __ push(Immediate(Smi::FromInt(size))); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4324 | CallRuntime(Runtime::kAllocateInNewSpace, 1, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4325 | __ pop(ebx); |
| 4326 | |
| 4327 | __ bind(&allocated); |
| 4328 | // Copy the content into the newly allocated memory. |
| 4329 | // (Unroll copy loop once for better throughput). |
| 4330 | for (int i = 0; i < size - kPointerSize; i += 2 * kPointerSize) { |
| 4331 | __ mov(edx, FieldOperand(ebx, i)); |
| 4332 | __ mov(ecx, FieldOperand(ebx, i + kPointerSize)); |
| 4333 | __ mov(FieldOperand(eax, i), edx); |
| 4334 | __ mov(FieldOperand(eax, i + kPointerSize), ecx); |
| 4335 | } |
| 4336 | if ((size % (2 * kPointerSize)) != 0) { |
| 4337 | __ mov(edx, FieldOperand(ebx, size - kPointerSize)); |
| 4338 | __ mov(FieldOperand(eax, size - kPointerSize), edx); |
| 4339 | } |
| 4340 | } |
| 4341 | |
| 4342 | |
| 4343 | void LCodeGen::DoFunctionLiteral(LFunctionLiteral* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4344 | ASSERT(ToRegister(instr->context()).is(esi)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4345 | // Use the fast case closure allocation code that allocates in new |
| 4346 | // space for nested functions that don't need literals cloning. |
| 4347 | Handle<SharedFunctionInfo> shared_info = instr->shared_info(); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 4348 | bool pretenure = instr->hydrogen()->pretenure(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4349 | if (!pretenure && shared_info->num_literals() == 0) { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4350 | FastNewClosureStub stub(shared_info->language_mode()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4351 | __ push(Immediate(shared_info)); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4352 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4353 | } else { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 4354 | __ push(Operand(ebp, StandardFrameConstants::kContextOffset)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4355 | __ push(Immediate(shared_info)); |
| 4356 | __ push(Immediate(pretenure |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4357 | ? factory()->true_value() |
| 4358 | : factory()->false_value())); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4359 | CallRuntime(Runtime::kNewClosure, 3, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4360 | } |
| 4361 | } |
| 4362 | |
| 4363 | |
| 4364 | void LCodeGen::DoTypeof(LTypeof* instr) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4365 | LOperand* input = instr->InputAt(1); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4366 | EmitPushTaggedOperand(input); |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4367 | CallRuntime(Runtime::kTypeof, 1, instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4368 | } |
| 4369 | |
| 4370 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4371 | void LCodeGen::DoTypeofIsAndBranch(LTypeofIsAndBranch* instr) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 4372 | Register input = ToRegister(instr->InputAt(0)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4373 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 4374 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 4375 | Label* true_label = chunk_->GetAssemblyLabel(true_block); |
| 4376 | Label* false_label = chunk_->GetAssemblyLabel(false_block); |
| 4377 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4378 | Condition final_branch_condition = |
| 4379 | EmitTypeofIs(true_label, false_label, input, instr->type_literal()); |
| 4380 | if (final_branch_condition != no_condition) { |
| 4381 | EmitBranch(true_block, false_block, final_branch_condition); |
| 4382 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4383 | } |
| 4384 | |
| 4385 | |
| 4386 | Condition LCodeGen::EmitTypeofIs(Label* true_label, |
| 4387 | Label* false_label, |
| 4388 | Register input, |
| 4389 | Handle<String> type_name) { |
| 4390 | Condition final_branch_condition = no_condition; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4391 | if (type_name->Equals(heap()->number_symbol())) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4392 | __ JumpIfSmi(input, true_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4393 | __ cmp(FieldOperand(input, HeapObject::kMapOffset), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4394 | factory()->heap_number_map()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4395 | final_branch_condition = equal; |
| 4396 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4397 | } else if (type_name->Equals(heap()->string_symbol())) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4398 | __ JumpIfSmi(input, false_label); |
| 4399 | __ CmpObjectType(input, FIRST_NONSTRING_TYPE, input); |
| 4400 | __ j(above_equal, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4401 | __ test_b(FieldOperand(input, Map::kBitFieldOffset), |
| 4402 | 1 << Map::kIsUndetectable); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4403 | final_branch_condition = zero; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4404 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4405 | } else if (type_name->Equals(heap()->boolean_symbol())) { |
| 4406 | __ cmp(input, factory()->true_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4407 | __ j(equal, true_label); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4408 | __ cmp(input, factory()->false_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4409 | final_branch_condition = equal; |
| 4410 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 4411 | } else if (FLAG_harmony_typeof && type_name->Equals(heap()->null_symbol())) { |
| 4412 | __ cmp(input, factory()->null_value()); |
| 4413 | final_branch_condition = equal; |
| 4414 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4415 | } else if (type_name->Equals(heap()->undefined_symbol())) { |
| 4416 | __ cmp(input, factory()->undefined_value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4417 | __ j(equal, true_label); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4418 | __ JumpIfSmi(input, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4419 | // Check for undetectable objects => true. |
| 4420 | __ mov(input, FieldOperand(input, HeapObject::kMapOffset)); |
| 4421 | __ test_b(FieldOperand(input, Map::kBitFieldOffset), |
| 4422 | 1 << Map::kIsUndetectable); |
| 4423 | final_branch_condition = not_zero; |
| 4424 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4425 | } else if (type_name->Equals(heap()->function_symbol())) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4426 | STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4427 | __ JumpIfSmi(input, false_label); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4428 | __ CmpObjectType(input, JS_FUNCTION_TYPE, input); |
| 4429 | __ j(equal, true_label); |
| 4430 | __ CmpInstanceType(input, JS_FUNCTION_PROXY_TYPE); |
| 4431 | final_branch_condition = equal; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4432 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4433 | } else if (type_name->Equals(heap()->object_symbol())) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4434 | __ JumpIfSmi(input, false_label); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 4435 | if (!FLAG_harmony_typeof) { |
| 4436 | __ cmp(input, factory()->null_value()); |
| 4437 | __ j(equal, true_label); |
| 4438 | } |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 4439 | __ CmpObjectType(input, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE, input); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4440 | __ j(below, false_label); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 4441 | __ CmpInstanceType(input, LAST_NONCALLABLE_SPEC_OBJECT_TYPE); |
| 4442 | __ j(above, false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4443 | // Check for undetectable objects => false. |
| 4444 | __ test_b(FieldOperand(input, Map::kBitFieldOffset), |
| 4445 | 1 << Map::kIsUndetectable); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 4446 | final_branch_condition = zero; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4447 | |
| 4448 | } else { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4449 | __ jmp(false_label); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4450 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4451 | return final_branch_condition; |
| 4452 | } |
| 4453 | |
| 4454 | |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 4455 | void LCodeGen::DoIsConstructCallAndBranch(LIsConstructCallAndBranch* instr) { |
| 4456 | Register temp = ToRegister(instr->TempAt(0)); |
| 4457 | int true_block = chunk_->LookupDestination(instr->true_block_id()); |
| 4458 | int false_block = chunk_->LookupDestination(instr->false_block_id()); |
| 4459 | |
| 4460 | EmitIsConstructCall(temp); |
| 4461 | EmitBranch(true_block, false_block, equal); |
| 4462 | } |
| 4463 | |
| 4464 | |
| 4465 | void LCodeGen::EmitIsConstructCall(Register temp) { |
| 4466 | // Get the frame pointer for the calling frame. |
| 4467 | __ mov(temp, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
| 4468 | |
| 4469 | // Skip the arguments adaptor frame if it exists. |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4470 | Label check_frame_marker; |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 4471 | __ cmp(Operand(temp, StandardFrameConstants::kContextOffset), |
| 4472 | Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 4473 | __ j(not_equal, &check_frame_marker, Label::kNear); |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 4474 | __ mov(temp, Operand(temp, StandardFrameConstants::kCallerFPOffset)); |
| 4475 | |
| 4476 | // Check the marker in the calling frame. |
| 4477 | __ bind(&check_frame_marker); |
| 4478 | __ cmp(Operand(temp, StandardFrameConstants::kMarkerOffset), |
| 4479 | Immediate(Smi::FromInt(StackFrame::CONSTRUCT))); |
| 4480 | } |
| 4481 | |
| 4482 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4483 | void LCodeGen::EnsureSpaceForLazyDeopt() { |
| 4484 | // Ensure that we have enough space after the previous lazy-bailout |
| 4485 | // instruction for patching the code here. |
| 4486 | int current_pc = masm()->pc_offset(); |
| 4487 | int patch_size = Deoptimizer::patch_size(); |
| 4488 | if (current_pc < last_lazy_deopt_pc_ + patch_size) { |
| 4489 | int padding_size = last_lazy_deopt_pc_ + patch_size - current_pc; |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4490 | __ Nop(padding_size); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4491 | } |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4492 | last_lazy_deopt_pc_ = masm()->pc_offset(); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4493 | } |
| 4494 | |
| 4495 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4496 | void LCodeGen::DoLazyBailout(LLazyBailout* instr) { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4497 | EnsureSpaceForLazyDeopt(); |
| 4498 | ASSERT(instr->HasEnvironment()); |
| 4499 | LEnvironment* env = instr->environment(); |
| 4500 | RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
| 4501 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4502 | } |
| 4503 | |
| 4504 | |
| 4505 | void LCodeGen::DoDeoptimize(LDeoptimize* instr) { |
| 4506 | DeoptimizeIf(no_condition, instr->environment()); |
| 4507 | } |
| 4508 | |
| 4509 | |
| 4510 | void LCodeGen::DoDeleteProperty(LDeleteProperty* instr) { |
| 4511 | LOperand* obj = instr->object(); |
| 4512 | LOperand* key = instr->key(); |
| 4513 | __ push(ToOperand(obj)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4514 | EmitPushTaggedOperand(key); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 4515 | ASSERT(instr->HasPointerMap() && instr->HasDeoptimizationEnvironment()); |
| 4516 | LPointerMap* pointers = instr->pointer_map(); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 4517 | RecordPosition(pointers->position()); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 4518 | // Create safepoint generator that will also ensure enough space in the |
| 4519 | // reloc info for patching in deoptimization (since this is invoking a |
| 4520 | // builtin) |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4521 | SafepointGenerator safepoint_generator( |
| 4522 | this, pointers, Safepoint::kLazyDeopt); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 4523 | __ push(Immediate(Smi::FromInt(strict_mode_flag()))); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 4524 | __ InvokeBuiltin(Builtins::DELETE, CALL_FUNCTION, safepoint_generator); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4525 | } |
| 4526 | |
| 4527 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4528 | void LCodeGen::DoDeferredStackCheck(LStackCheck* instr) { |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4529 | PushSafepointRegistersScope scope(this); |
| 4530 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 4531 | __ CallRuntimeSaveDoubles(Runtime::kStackGuard); |
| 4532 | RecordSafepointWithLazyDeopt( |
| 4533 | instr, RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); |
| 4534 | ASSERT(instr->HasEnvironment()); |
| 4535 | LEnvironment* env = instr->environment(); |
| 4536 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4537 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4538 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4539 | |
| 4540 | void LCodeGen::DoStackCheck(LStackCheck* instr) { |
| 4541 | class DeferredStackCheck: public LDeferredCode { |
| 4542 | public: |
| 4543 | DeferredStackCheck(LCodeGen* codegen, LStackCheck* instr) |
| 4544 | : LDeferredCode(codegen), instr_(instr) { } |
| 4545 | virtual void Generate() { codegen()->DoDeferredStackCheck(instr_); } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4546 | virtual LInstruction* instr() { return instr_; } |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4547 | private: |
| 4548 | LStackCheck* instr_; |
| 4549 | }; |
| 4550 | |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4551 | ASSERT(instr->HasEnvironment()); |
| 4552 | LEnvironment* env = instr->environment(); |
| 4553 | // There is no LLazyBailout instruction for stack-checks. We have to |
| 4554 | // prepare for lazy deoptimization explicitly here. |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4555 | if (instr->hydrogen()->is_function_entry()) { |
| 4556 | // Perform stack overflow check. |
| 4557 | Label done; |
| 4558 | ExternalReference stack_limit = |
| 4559 | ExternalReference::address_of_stack_limit(isolate()); |
| 4560 | __ cmp(esp, Operand::StaticVariable(stack_limit)); |
| 4561 | __ j(above_equal, &done, Label::kNear); |
| 4562 | |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4563 | ASSERT(instr->context()->IsRegister()); |
| 4564 | ASSERT(ToRegister(instr->context()).is(esi)); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4565 | StackCheckStub stub; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 4566 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4567 | EnsureSpaceForLazyDeopt(); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4568 | __ bind(&done); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4569 | RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
| 4570 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4571 | } else { |
| 4572 | ASSERT(instr->hydrogen()->is_backwards_branch()); |
| 4573 | // Perform stack overflow check if this goto needs it before jumping. |
| 4574 | DeferredStackCheck* deferred_stack_check = |
| 4575 | new DeferredStackCheck(this, instr); |
| 4576 | ExternalReference stack_limit = |
| 4577 | ExternalReference::address_of_stack_limit(isolate()); |
| 4578 | __ cmp(esp, Operand::StaticVariable(stack_limit)); |
| 4579 | __ j(below, deferred_stack_check->entry()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4580 | EnsureSpaceForLazyDeopt(); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4581 | __ bind(instr->done_label()); |
| 4582 | deferred_stack_check->SetExit(instr->done_label()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4583 | RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
| 4584 | // Don't record a deoptimization index for the safepoint here. |
| 4585 | // This will be done explicitly when emitting call and the safepoint in |
| 4586 | // the deferred code. |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4587 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4588 | } |
| 4589 | |
| 4590 | |
| 4591 | void LCodeGen::DoOsrEntry(LOsrEntry* instr) { |
| 4592 | // This is a pseudo-instruction that ensures that the environment here is |
| 4593 | // properly registered for deoptimization and records the assembler's PC |
| 4594 | // offset. |
| 4595 | LEnvironment* environment = instr->environment(); |
| 4596 | environment->SetSpilledRegisters(instr->SpilledRegisterArray(), |
| 4597 | instr->SpilledDoubleRegisterArray()); |
| 4598 | |
| 4599 | // If the environment were already registered, we would have no way of |
| 4600 | // backpatching it with the spill slot operands. |
| 4601 | ASSERT(!environment->HasBeenRegistered()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4602 | RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4603 | ASSERT(osr_pc_offset_ == -1); |
| 4604 | osr_pc_offset_ = masm()->pc_offset(); |
| 4605 | } |
| 4606 | |
| 4607 | |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 4608 | void LCodeGen::DoIn(LIn* instr) { |
| 4609 | LOperand* obj = instr->object(); |
| 4610 | LOperand* key = instr->key(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame^] | 4611 | EmitPushTaggedOperand(key); |
| 4612 | EmitPushTaggedOperand(obj); |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 4613 | ASSERT(instr->HasPointerMap() && instr->HasDeoptimizationEnvironment()); |
| 4614 | LPointerMap* pointers = instr->pointer_map(); |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 4615 | RecordPosition(pointers->position()); |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 4616 | SafepointGenerator safepoint_generator( |
| 4617 | this, pointers, Safepoint::kLazyDeopt); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 4618 | __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator); |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 4619 | } |
| 4620 | |
| 4621 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4622 | #undef __ |
| 4623 | |
| 4624 | } } // namespace v8::internal |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 4625 | |
| 4626 | #endif // V8_TARGET_ARCH_IA32 |