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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 #include "src/crankshaft/mips64/lithium-codegen-mips64.h" | 5 #include "src/crankshaft/mips64/lithium-codegen-mips64.h" |
6 | 6 |
7 #include "src/code-factory.h" | 7 #include "src/code-factory.h" |
8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
9 #include "src/crankshaft/hydrogen-osr.h" | 9 #include "src/crankshaft/hydrogen-osr.h" |
10 #include "src/crankshaft/mips64/lithium-gap-resolver-mips64.h" | 10 #include "src/crankshaft/mips64/lithium-gap-resolver-mips64.h" |
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157 // Possibly allocate a local context. | 157 // Possibly allocate a local context. |
158 if (info()->scope()->num_heap_slots() > 0) { | 158 if (info()->scope()->num_heap_slots() > 0) { |
159 Comment(";;; Allocate local context"); | 159 Comment(";;; Allocate local context"); |
160 bool need_write_barrier = true; | 160 bool need_write_barrier = true; |
161 // Argument to NewContext is the function, which is in a1. | 161 // Argument to NewContext is the function, which is in a1. |
162 int slots = info()->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; | 162 int slots = info()->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
163 Safepoint::DeoptMode deopt_mode = Safepoint::kNoLazyDeopt; | 163 Safepoint::DeoptMode deopt_mode = Safepoint::kNoLazyDeopt; |
164 if (info()->scope()->is_script_scope()) { | 164 if (info()->scope()->is_script_scope()) { |
165 __ push(a1); | 165 __ push(a1); |
166 __ Push(info()->scope()->GetScopeInfo(info()->isolate())); | 166 __ Push(info()->scope()->GetScopeInfo(info()->isolate())); |
167 __ CallRuntime(Runtime::kNewScriptContext, 2); | 167 __ CallRuntime(Runtime::kNewScriptContext); |
168 deopt_mode = Safepoint::kLazyDeopt; | 168 deopt_mode = Safepoint::kLazyDeopt; |
169 } else if (slots <= FastNewContextStub::kMaximumSlots) { | 169 } else if (slots <= FastNewContextStub::kMaximumSlots) { |
170 FastNewContextStub stub(isolate(), slots); | 170 FastNewContextStub stub(isolate(), slots); |
171 __ CallStub(&stub); | 171 __ CallStub(&stub); |
172 // Result of FastNewContextStub is always in new space. | 172 // Result of FastNewContextStub is always in new space. |
173 need_write_barrier = false; | 173 need_write_barrier = false; |
174 } else { | 174 } else { |
175 __ push(a1); | 175 __ push(a1); |
176 __ CallRuntime(Runtime::kNewFunctionContext, 1); | 176 __ CallRuntime(Runtime::kNewFunctionContext); |
177 } | 177 } |
178 RecordSafepoint(deopt_mode); | 178 RecordSafepoint(deopt_mode); |
179 | 179 |
180 // Context is returned in both v0. It replaces the context passed to us. | 180 // Context is returned in both v0. It replaces the context passed to us. |
181 // It's saved in the stack and kept live in cp. | 181 // It's saved in the stack and kept live in cp. |
182 __ mov(cp, v0); | 182 __ mov(cp, v0); |
183 __ sd(v0, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 183 __ sd(v0, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
184 // Copy any necessary parameters into the context. | 184 // Copy any necessary parameters into the context. |
185 int num_parameters = scope()->num_parameters(); | 185 int num_parameters = scope()->num_parameters(); |
186 int first_parameter = scope()->has_this_declaration() ? -1 : 0; | 186 int first_parameter = scope()->has_this_declaration() ? -1 : 0; |
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2708 | 2708 |
2709 | 2709 |
2710 void LCodeGen::DoReturn(LReturn* instr) { | 2710 void LCodeGen::DoReturn(LReturn* instr) { |
2711 if (FLAG_trace && info()->IsOptimizing()) { | 2711 if (FLAG_trace && info()->IsOptimizing()) { |
2712 // Push the return value on the stack as the parameter. | 2712 // Push the return value on the stack as the parameter. |
2713 // Runtime::TraceExit returns its parameter in v0. We're leaving the code | 2713 // Runtime::TraceExit returns its parameter in v0. We're leaving the code |
2714 // managed by the register allocator and tearing down the frame, it's | 2714 // managed by the register allocator and tearing down the frame, it's |
2715 // safe to write to the context register. | 2715 // safe to write to the context register. |
2716 __ push(v0); | 2716 __ push(v0); |
2717 __ ld(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 2717 __ ld(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
2718 __ CallRuntime(Runtime::kTraceExit, 1); | 2718 __ CallRuntime(Runtime::kTraceExit); |
2719 } | 2719 } |
2720 if (info()->saves_caller_doubles()) { | 2720 if (info()->saves_caller_doubles()) { |
2721 RestoreCallerDoubles(); | 2721 RestoreCallerDoubles(); |
2722 } | 2722 } |
2723 if (NeedsEagerFrame()) { | 2723 if (NeedsEagerFrame()) { |
2724 __ mov(sp, fp); | 2724 __ mov(sp, fp); |
2725 __ Pop(ra, fp); | 2725 __ Pop(ra, fp); |
2726 } | 2726 } |
2727 if (instr->has_constant_parameter_count()) { | 2727 if (instr->has_constant_parameter_count()) { |
2728 int parameter_count = ToInteger32(instr->constant_parameter_count()); | 2728 int parameter_count = ToInteger32(instr->constant_parameter_count()); |
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3451 DCHECK(result.is(cp)); | 3451 DCHECK(result.is(cp)); |
3452 } | 3452 } |
3453 } | 3453 } |
3454 | 3454 |
3455 | 3455 |
3456 void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) { | 3456 void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) { |
3457 DCHECK(ToRegister(instr->context()).is(cp)); | 3457 DCHECK(ToRegister(instr->context()).is(cp)); |
3458 __ li(scratch0(), instr->hydrogen()->pairs()); | 3458 __ li(scratch0(), instr->hydrogen()->pairs()); |
3459 __ li(scratch1(), Operand(Smi::FromInt(instr->hydrogen()->flags()))); | 3459 __ li(scratch1(), Operand(Smi::FromInt(instr->hydrogen()->flags()))); |
3460 __ Push(scratch0(), scratch1()); | 3460 __ Push(scratch0(), scratch1()); |
3461 CallRuntime(Runtime::kDeclareGlobals, 2, instr); | 3461 CallRuntime(Runtime::kDeclareGlobals, instr); |
3462 } | 3462 } |
3463 | 3463 |
3464 | 3464 |
3465 void LCodeGen::CallKnownFunction(Handle<JSFunction> function, | 3465 void LCodeGen::CallKnownFunction(Handle<JSFunction> function, |
3466 int formal_parameter_count, int arity, | 3466 int formal_parameter_count, int arity, |
3467 LInstruction* instr) { | 3467 LInstruction* instr) { |
3468 bool dont_adapt_arguments = | 3468 bool dont_adapt_arguments = |
3469 formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel; | 3469 formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel; |
3470 bool can_invoke_directly = | 3470 bool can_invoke_directly = |
3471 dont_adapt_arguments || formal_parameter_count == arity; | 3471 dont_adapt_arguments || formal_parameter_count == arity; |
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5735 Register null_value = a5; | 5735 Register null_value = a5; |
5736 __ LoadRoot(null_value, Heap::kNullValueRootIndex); | 5736 __ LoadRoot(null_value, Heap::kNullValueRootIndex); |
5737 __ CheckEnumCache(null_value, &call_runtime); | 5737 __ CheckEnumCache(null_value, &call_runtime); |
5738 | 5738 |
5739 __ ld(result, FieldMemOperand(object, HeapObject::kMapOffset)); | 5739 __ ld(result, FieldMemOperand(object, HeapObject::kMapOffset)); |
5740 __ Branch(&use_cache); | 5740 __ Branch(&use_cache); |
5741 | 5741 |
5742 // Get the set of properties to enumerate. | 5742 // Get the set of properties to enumerate. |
5743 __ bind(&call_runtime); | 5743 __ bind(&call_runtime); |
5744 __ push(object); | 5744 __ push(object); |
5745 CallRuntime(Runtime::kGetPropertyNamesFast, 1, instr); | 5745 CallRuntime(Runtime::kGetPropertyNamesFast, instr); |
5746 | 5746 |
5747 __ ld(a1, FieldMemOperand(v0, HeapObject::kMapOffset)); | 5747 __ ld(a1, FieldMemOperand(v0, HeapObject::kMapOffset)); |
5748 DCHECK(result.is(v0)); | 5748 DCHECK(result.is(v0)); |
5749 __ LoadRoot(at, Heap::kMetaMapRootIndex); | 5749 __ LoadRoot(at, Heap::kMetaMapRootIndex); |
5750 DeoptimizeIf(ne, instr, Deoptimizer::kWrongMap, a1, Operand(at)); | 5750 DeoptimizeIf(ne, instr, Deoptimizer::kWrongMap, a1, Operand(at)); |
5751 __ bind(&use_cache); | 5751 __ bind(&use_cache); |
5752 } | 5752 } |
5753 | 5753 |
5754 | 5754 |
5755 void LCodeGen::DoForInCacheArray(LForInCacheArray* instr) { | 5755 void LCodeGen::DoForInCacheArray(LForInCacheArray* instr) { |
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5857 void LCodeGen::DoStoreFrameContext(LStoreFrameContext* instr) { | 5857 void LCodeGen::DoStoreFrameContext(LStoreFrameContext* instr) { |
5858 Register context = ToRegister(instr->context()); | 5858 Register context = ToRegister(instr->context()); |
5859 __ sd(context, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 5859 __ sd(context, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
5860 } | 5860 } |
5861 | 5861 |
5862 | 5862 |
5863 void LCodeGen::DoAllocateBlockContext(LAllocateBlockContext* instr) { | 5863 void LCodeGen::DoAllocateBlockContext(LAllocateBlockContext* instr) { |
5864 Handle<ScopeInfo> scope_info = instr->scope_info(); | 5864 Handle<ScopeInfo> scope_info = instr->scope_info(); |
5865 __ li(at, scope_info); | 5865 __ li(at, scope_info); |
5866 __ Push(at, ToRegister(instr->function())); | 5866 __ Push(at, ToRegister(instr->function())); |
5867 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 5867 CallRuntime(Runtime::kPushBlockContext, instr); |
5868 RecordSafepoint(Safepoint::kNoLazyDeopt); | 5868 RecordSafepoint(Safepoint::kNoLazyDeopt); |
5869 } | 5869 } |
5870 | 5870 |
5871 | 5871 |
5872 #undef __ | 5872 #undef __ |
5873 | 5873 |
5874 } // namespace internal | 5874 } // namespace internal |
5875 } // namespace v8 | 5875 } // namespace v8 |
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