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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #if V8_TARGET_ARCH_IA32 | 5 #if V8_TARGET_ARCH_IA32 |
| 6 | 6 |
| 7 #include "src/crankshaft/ia32/lithium-codegen-ia32.h" | 7 #include "src/crankshaft/ia32/lithium-codegen-ia32.h" |
| 8 | 8 |
| 9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
| 10 #include "src/code-factory.h" | 10 #include "src/code-factory.h" |
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| 238 // Possibly allocate a local context. | 238 // Possibly allocate a local context. |
| 239 if (info_->num_heap_slots() > 0) { | 239 if (info_->num_heap_slots() > 0) { |
| 240 Comment(";;; Allocate local context"); | 240 Comment(";;; Allocate local context"); |
| 241 bool need_write_barrier = true; | 241 bool need_write_barrier = true; |
| 242 // Argument to NewContext is the function, which is still in edi. | 242 // Argument to NewContext is the function, which is still in edi. |
| 243 int slots = info_->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; | 243 int slots = info_->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
| 244 Safepoint::DeoptMode deopt_mode = Safepoint::kNoLazyDeopt; | 244 Safepoint::DeoptMode deopt_mode = Safepoint::kNoLazyDeopt; |
| 245 if (info()->scope()->is_script_scope()) { | 245 if (info()->scope()->is_script_scope()) { |
| 246 __ push(edi); | 246 __ push(edi); |
| 247 __ Push(info()->scope()->GetScopeInfo(info()->isolate())); | 247 __ Push(info()->scope()->GetScopeInfo(info()->isolate())); |
| 248 __ CallRuntime(Runtime::kNewScriptContext, 2); | 248 __ CallRuntime(Runtime::kNewScriptContext); |
| 249 deopt_mode = Safepoint::kLazyDeopt; | 249 deopt_mode = Safepoint::kLazyDeopt; |
| 250 } else if (slots <= FastNewContextStub::kMaximumSlots) { | 250 } else if (slots <= FastNewContextStub::kMaximumSlots) { |
| 251 FastNewContextStub stub(isolate(), slots); | 251 FastNewContextStub stub(isolate(), slots); |
| 252 __ CallStub(&stub); | 252 __ CallStub(&stub); |
| 253 // Result of FastNewContextStub is always in new space. | 253 // Result of FastNewContextStub is always in new space. |
| 254 need_write_barrier = false; | 254 need_write_barrier = false; |
| 255 } else { | 255 } else { |
| 256 __ push(edi); | 256 __ push(edi); |
| 257 __ CallRuntime(Runtime::kNewFunctionContext, 1); | 257 __ CallRuntime(Runtime::kNewFunctionContext); |
| 258 } | 258 } |
| 259 RecordSafepoint(deopt_mode); | 259 RecordSafepoint(deopt_mode); |
| 260 | 260 |
| 261 // Context is returned in eax. It replaces the context passed to us. | 261 // Context is returned in eax. It replaces the context passed to us. |
| 262 // It's saved in the stack and kept live in esi. | 262 // It's saved in the stack and kept live in esi. |
| 263 __ mov(esi, eax); | 263 __ mov(esi, eax); |
| 264 __ mov(Operand(ebp, StandardFrameConstants::kContextOffset), eax); | 264 __ mov(Operand(ebp, StandardFrameConstants::kContextOffset), eax); |
| 265 | 265 |
| 266 // Copy parameters into context if necessary. | 266 // Copy parameters into context if necessary. |
| 267 int num_parameters = scope()->num_parameters(); | 267 int num_parameters = scope()->num_parameters(); |
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| 2603 | 2603 |
| 2604 | 2604 |
| 2605 void LCodeGen::DoReturn(LReturn* instr) { | 2605 void LCodeGen::DoReturn(LReturn* instr) { |
| 2606 if (FLAG_trace && info()->IsOptimizing()) { | 2606 if (FLAG_trace && info()->IsOptimizing()) { |
| 2607 // Preserve the return value on the stack and rely on the runtime call | 2607 // Preserve the return value on the stack and rely on the runtime call |
| 2608 // to return the value in the same register. We're leaving the code | 2608 // to return the value in the same register. We're leaving the code |
| 2609 // managed by the register allocator and tearing down the frame, it's | 2609 // managed by the register allocator and tearing down the frame, it's |
| 2610 // safe to write to the context register. | 2610 // safe to write to the context register. |
| 2611 __ push(eax); | 2611 __ push(eax); |
| 2612 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); | 2612 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 2613 __ CallRuntime(Runtime::kTraceExit, 1); | 2613 __ CallRuntime(Runtime::kTraceExit); |
| 2614 } | 2614 } |
| 2615 if (info()->saves_caller_doubles()) RestoreCallerDoubles(); | 2615 if (info()->saves_caller_doubles()) RestoreCallerDoubles(); |
| 2616 if (dynamic_frame_alignment_) { | 2616 if (dynamic_frame_alignment_) { |
| 2617 // Fetch the state of the dynamic frame alignment. | 2617 // Fetch the state of the dynamic frame alignment. |
| 2618 __ mov(edx, Operand(ebp, | 2618 __ mov(edx, Operand(ebp, |
| 2619 JavaScriptFrameConstants::kDynamicAlignmentStateOffset)); | 2619 JavaScriptFrameConstants::kDynamicAlignmentStateOffset)); |
| 2620 } | 2620 } |
| 2621 if (NeedsEagerFrame()) { | 2621 if (NeedsEagerFrame()) { |
| 2622 __ mov(esp, ebp); | 2622 __ mov(esp, ebp); |
| 2623 __ pop(ebp); | 2623 __ pop(ebp); |
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| 3202 // If there is no frame, the context must be in esi. | 3202 // If there is no frame, the context must be in esi. |
| 3203 DCHECK(result.is(esi)); | 3203 DCHECK(result.is(esi)); |
| 3204 } | 3204 } |
| 3205 } | 3205 } |
| 3206 | 3206 |
| 3207 | 3207 |
| 3208 void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) { | 3208 void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) { |
| 3209 DCHECK(ToRegister(instr->context()).is(esi)); | 3209 DCHECK(ToRegister(instr->context()).is(esi)); |
| 3210 __ push(Immediate(instr->hydrogen()->pairs())); | 3210 __ push(Immediate(instr->hydrogen()->pairs())); |
| 3211 __ push(Immediate(Smi::FromInt(instr->hydrogen()->flags()))); | 3211 __ push(Immediate(Smi::FromInt(instr->hydrogen()->flags()))); |
| 3212 CallRuntime(Runtime::kDeclareGlobals, 2, instr); | 3212 CallRuntime(Runtime::kDeclareGlobals, instr); |
| 3213 } | 3213 } |
| 3214 | 3214 |
| 3215 | 3215 |
| 3216 void LCodeGen::CallKnownFunction(Handle<JSFunction> function, | 3216 void LCodeGen::CallKnownFunction(Handle<JSFunction> function, |
| 3217 int formal_parameter_count, int arity, | 3217 int formal_parameter_count, int arity, |
| 3218 LInstruction* instr) { | 3218 LInstruction* instr) { |
| 3219 bool dont_adapt_arguments = | 3219 bool dont_adapt_arguments = |
| 3220 formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel; | 3220 formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel; |
| 3221 bool can_invoke_directly = | 3221 bool can_invoke_directly = |
| 3222 dont_adapt_arguments || formal_parameter_count == arity; | 3222 dont_adapt_arguments || formal_parameter_count == arity; |
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| 5368 | 5368 |
| 5369 Label use_cache, call_runtime; | 5369 Label use_cache, call_runtime; |
| 5370 __ CheckEnumCache(&call_runtime); | 5370 __ CheckEnumCache(&call_runtime); |
| 5371 | 5371 |
| 5372 __ mov(eax, FieldOperand(eax, HeapObject::kMapOffset)); | 5372 __ mov(eax, FieldOperand(eax, HeapObject::kMapOffset)); |
| 5373 __ jmp(&use_cache, Label::kNear); | 5373 __ jmp(&use_cache, Label::kNear); |
| 5374 | 5374 |
| 5375 // Get the set of properties to enumerate. | 5375 // Get the set of properties to enumerate. |
| 5376 __ bind(&call_runtime); | 5376 __ bind(&call_runtime); |
| 5377 __ push(eax); | 5377 __ push(eax); |
| 5378 CallRuntime(Runtime::kGetPropertyNamesFast, 1, instr); | 5378 CallRuntime(Runtime::kGetPropertyNamesFast, instr); |
| 5379 | 5379 |
| 5380 __ cmp(FieldOperand(eax, HeapObject::kMapOffset), | 5380 __ cmp(FieldOperand(eax, HeapObject::kMapOffset), |
| 5381 isolate()->factory()->meta_map()); | 5381 isolate()->factory()->meta_map()); |
| 5382 DeoptimizeIf(not_equal, instr, Deoptimizer::kWrongMap); | 5382 DeoptimizeIf(not_equal, instr, Deoptimizer::kWrongMap); |
| 5383 __ bind(&use_cache); | 5383 __ bind(&use_cache); |
| 5384 } | 5384 } |
| 5385 | 5385 |
| 5386 | 5386 |
| 5387 void LCodeGen::DoForInCacheArray(LForInCacheArray* instr) { | 5387 void LCodeGen::DoForInCacheArray(LForInCacheArray* instr) { |
| 5388 Register map = ToRegister(instr->map()); | 5388 Register map = ToRegister(instr->map()); |
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| 5488 void LCodeGen::DoStoreFrameContext(LStoreFrameContext* instr) { | 5488 void LCodeGen::DoStoreFrameContext(LStoreFrameContext* instr) { |
| 5489 Register context = ToRegister(instr->context()); | 5489 Register context = ToRegister(instr->context()); |
| 5490 __ mov(Operand(ebp, StandardFrameConstants::kContextOffset), context); | 5490 __ mov(Operand(ebp, StandardFrameConstants::kContextOffset), context); |
| 5491 } | 5491 } |
| 5492 | 5492 |
| 5493 | 5493 |
| 5494 void LCodeGen::DoAllocateBlockContext(LAllocateBlockContext* instr) { | 5494 void LCodeGen::DoAllocateBlockContext(LAllocateBlockContext* instr) { |
| 5495 Handle<ScopeInfo> scope_info = instr->scope_info(); | 5495 Handle<ScopeInfo> scope_info = instr->scope_info(); |
| 5496 __ Push(scope_info); | 5496 __ Push(scope_info); |
| 5497 __ push(ToRegister(instr->function())); | 5497 __ push(ToRegister(instr->function())); |
| 5498 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 5498 CallRuntime(Runtime::kPushBlockContext, instr); |
| 5499 RecordSafepoint(Safepoint::kNoLazyDeopt); | 5499 RecordSafepoint(Safepoint::kNoLazyDeopt); |
| 5500 } | 5500 } |
| 5501 | 5501 |
| 5502 | 5502 |
| 5503 #undef __ | 5503 #undef __ |
| 5504 | 5504 |
| 5505 } // namespace internal | 5505 } // namespace internal |
| 5506 } // namespace v8 | 5506 } // namespace v8 |
| 5507 | 5507 |
| 5508 #endif // V8_TARGET_ARCH_IA32 | 5508 #endif // V8_TARGET_ARCH_IA32 |
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