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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_PPC | 7 #if V8_TARGET_ARCH_PPC |
8 | 8 |
9 #include "src/code-factory.h" | 9 #include "src/code-factory.h" |
10 #include "src/code-stubs.h" | 10 #include "src/code-stubs.h" |
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3118 __ beq(&uninitialized_this); | 3118 __ beq(&uninitialized_this); |
3119 __ mov(r4, Operand(this_var->name())); | 3119 __ mov(r4, Operand(this_var->name())); |
3120 __ push(r4); | 3120 __ push(r4); |
3121 __ CallRuntime(Runtime::kThrowReferenceError, 1); | 3121 __ CallRuntime(Runtime::kThrowReferenceError, 1); |
3122 __ bind(&uninitialized_this); | 3122 __ bind(&uninitialized_this); |
3123 | 3123 |
3124 EmitVariableAssignment(this_var, Token::INIT_CONST, slot); | 3124 EmitVariableAssignment(this_var, Token::INIT_CONST, slot); |
3125 } | 3125 } |
3126 | 3126 |
3127 | 3127 |
| 3128 // See http://www.ecma-international.org/ecma-262/6.0/#sec-function-calls. |
| 3129 void FullCodeGenerator::PushCalleeAndWithBaseObject(Call* expr) { |
| 3130 VariableProxy* callee = expr->expression()->AsVariableProxy(); |
| 3131 if (callee->var()->IsLookupSlot()) { |
| 3132 Label slow, done; |
| 3133 |
| 3134 { |
| 3135 PreservePositionScope scope(masm()->positions_recorder()); |
| 3136 // Generate code for loading from variables potentially shadowed by |
| 3137 // eval-introduced variables. |
| 3138 EmitDynamicLookupFastCase(callee, NOT_INSIDE_TYPEOF, &slow, &done); |
| 3139 } |
| 3140 __ bind(&slow); |
| 3141 // Call the runtime to find the function to call (returned in rax) and |
| 3142 // the object holding it (returned in rdx). |
| 3143 __ Push(context_register()); |
| 3144 __ Push(callee->name()); |
| 3145 __ CallRuntime(Runtime::kLoadLookupSlot, 2); |
| 3146 __ Push(rax); // Function. |
| 3147 __ Push(rdx); // Receiver. |
| 3148 PrepareForBailoutForId(expr->LookupId(), NO_REGISTERS); |
| 3149 |
| 3150 // If fast case code has been generated, emit code to push the function |
| 3151 // and receiver and have the slow path jump around this code. |
| 3152 if (done.is_linked()) { |
| 3153 Label call; |
| 3154 __ jmp(&call, Label::kNear); |
| 3155 __ bind(&done); |
| 3156 // Push function. |
| 3157 __ Push(rax); |
| 3158 // Pass undefined as the receiver, which is the WithBaseObject of a |
| 3159 // non-object environment record. If the callee is sloppy, it will patch |
| 3160 // it up to be the global receiver. |
| 3161 __ PushRoot(Heap::kUndefinedValueRootIndex); |
| 3162 __ bind(&call); |
| 3163 } |
| 3164 } else { |
| 3165 VisitForStackValue(callee); |
| 3166 // refEnv.WithBaseObject() |
| 3167 __ LoadRoot(r5, Heap::kUndefinedValueRootIndex); |
| 3168 __ push(r5); |
| 3169 } |
| 3170 } |
| 3171 |
| 3172 |
3128 void FullCodeGenerator::VisitCall(Call* expr) { | 3173 void FullCodeGenerator::VisitCall(Call* expr) { |
3129 #ifdef DEBUG | 3174 #ifdef DEBUG |
3130 // We want to verify that RecordJSReturnSite gets called on all paths | 3175 // We want to verify that RecordJSReturnSite gets called on all paths |
3131 // through this function. Avoid early returns. | 3176 // through this function. Avoid early returns. |
3132 expr->return_is_recorded_ = false; | 3177 expr->return_is_recorded_ = false; |
3133 #endif | 3178 #endif |
3134 | 3179 |
3135 Comment cmnt(masm_, "[ Call"); | 3180 Comment cmnt(masm_, "[ Call"); |
3136 Expression* callee = expr->expression(); | 3181 Expression* callee = expr->expression(); |
3137 Call::CallType call_type = expr->GetCallType(isolate()); | 3182 Call::CallType call_type = expr->GetCallType(isolate()); |
3138 | 3183 |
3139 if (call_type == Call::POSSIBLY_EVAL_CALL) { | 3184 if (call_type == Call::POSSIBLY_EVAL_CALL) { |
3140 // In a call to eval, we first call RuntimeHidden_ResolvePossiblyDirectEval | 3185 // In a call to eval, we first call RuntimeHidden_ResolvePossiblyDirectEval |
3141 // to resolve the function we need to call. Then we call the resolved | 3186 // to resolve the function we need to call. Then we call the resolved |
3142 // function using the given arguments. | 3187 // function using the given arguments. |
3143 ZoneList<Expression*>* args = expr->arguments(); | 3188 ZoneList<Expression*>* args = expr->arguments(); |
3144 int arg_count = args->length(); | 3189 int arg_count = args->length(); |
3145 | 3190 |
3146 { | 3191 { |
3147 PreservePositionScope pos_scope(masm()->positions_recorder()); | 3192 PreservePositionScope pos_scope(masm()->positions_recorder()); |
3148 VisitForStackValue(callee); | 3193 PushCalleeAndWithBaseObject(expr); |
3149 __ LoadRoot(r5, Heap::kUndefinedValueRootIndex); | |
3150 __ push(r5); // Reserved receiver slot. | |
3151 | 3194 |
3152 // Push the arguments. | 3195 // Push the arguments. |
3153 for (int i = 0; i < arg_count; i++) { | 3196 for (int i = 0; i < arg_count; i++) { |
3154 VisitForStackValue(args->at(i)); | 3197 VisitForStackValue(args->at(i)); |
3155 } | 3198 } |
3156 | 3199 |
3157 // Push a copy of the function (found below the arguments) and | 3200 // Push a copy of the function (found below the arguments) and |
3158 // resolve eval. | 3201 // resolve eval. |
3159 __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0); | 3202 __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0); |
3160 __ push(r4); | 3203 __ push(r4); |
3161 EmitResolvePossiblyDirectEval(arg_count); | 3204 EmitResolvePossiblyDirectEval(arg_count); |
3162 | 3205 |
3163 // Touch up the stack with the resolved function. | 3206 // Touch up the stack with the resolved function. |
3164 __ StoreP(r3, MemOperand(sp, (arg_count + 1) * kPointerSize), r0); | 3207 __ StoreP(r3, MemOperand(sp, (arg_count + 1) * kPointerSize), r0); |
3165 | 3208 |
3166 PrepareForBailoutForId(expr->EvalOrLookupId(), NO_REGISTERS); | 3209 PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS); |
3167 } | 3210 } |
3168 | 3211 |
3169 // Record source position for debugger. | 3212 // Record source position for debugger. |
3170 SetSourcePosition(expr->position()); | 3213 SetSourcePosition(expr->position()); |
3171 CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS); | 3214 CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS); |
3172 __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0); | 3215 __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0); |
3173 __ CallStub(&stub); | 3216 __ CallStub(&stub); |
3174 RecordJSReturnSite(expr); | 3217 RecordJSReturnSite(expr); |
3175 // Restore context register. | 3218 // Restore context register. |
3176 __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 3219 __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
3177 context()->DropAndPlug(1, r3); | 3220 context()->DropAndPlug(1, r3); |
3178 } else if (call_type == Call::GLOBAL_CALL) { | 3221 } else if (call_type == Call::GLOBAL_CALL) { |
3179 EmitCallWithLoadIC(expr); | 3222 EmitCallWithLoadIC(expr); |
3180 | 3223 |
3181 } else if (call_type == Call::LOOKUP_SLOT_CALL) { | 3224 } else if (call_type == Call::LOOKUP_SLOT_CALL) { |
3182 // Call to a lookup slot (dynamically introduced variable). | 3225 // Call to a lookup slot (dynamically introduced variable). |
3183 VariableProxy* proxy = callee->AsVariableProxy(); | 3226 PushCalleeAndWithBaseObject(expr); |
3184 Label slow, done; | |
3185 | |
3186 { | |
3187 PreservePositionScope scope(masm()->positions_recorder()); | |
3188 // Generate code for loading from variables potentially shadowed | |
3189 // by eval-introduced variables. | |
3190 EmitDynamicLookupFastCase(proxy, NOT_INSIDE_TYPEOF, &slow, &done); | |
3191 } | |
3192 | |
3193 __ bind(&slow); | |
3194 // Call the runtime to find the function to call (returned in r3) | |
3195 // and the object holding it (returned in edx). | |
3196 DCHECK(!context_register().is(r5)); | |
3197 __ mov(r5, Operand(proxy->name())); | |
3198 __ Push(context_register(), r5); | |
3199 __ CallRuntime(Runtime::kLoadLookupSlot, 2); | |
3200 __ Push(r3, r4); // Function, receiver. | |
3201 PrepareForBailoutForId(expr->EvalOrLookupId(), NO_REGISTERS); | |
3202 | |
3203 // If fast case code has been generated, emit code to push the | |
3204 // function and receiver and have the slow path jump around this | |
3205 // code. | |
3206 if (done.is_linked()) { | |
3207 Label call; | |
3208 __ b(&call); | |
3209 __ bind(&done); | |
3210 // Push function. | |
3211 __ push(r3); | |
3212 // The receiver is implicitly the global receiver. Indicate this | |
3213 // by passing the hole to the call function stub. | |
3214 __ LoadRoot(r4, Heap::kUndefinedValueRootIndex); | |
3215 __ push(r4); | |
3216 __ bind(&call); | |
3217 } | |
3218 | |
3219 // The receiver is either the global receiver or an object found | |
3220 // by LoadContextSlot. | |
3221 EmitCall(expr); | 3227 EmitCall(expr); |
3222 } else if (call_type == Call::PROPERTY_CALL) { | 3228 } else if (call_type == Call::PROPERTY_CALL) { |
3223 Property* property = callee->AsProperty(); | 3229 Property* property = callee->AsProperty(); |
3224 bool is_named_call = property->key()->IsPropertyName(); | 3230 bool is_named_call = property->key()->IsPropertyName(); |
3225 if (property->IsSuperAccess()) { | 3231 if (property->IsSuperAccess()) { |
3226 if (is_named_call) { | 3232 if (is_named_call) { |
3227 EmitSuperCallWithLoadIC(expr); | 3233 EmitSuperCallWithLoadIC(expr); |
3228 } else { | 3234 } else { |
3229 EmitKeyedSuperCallWithLoadIC(expr); | 3235 EmitKeyedSuperCallWithLoadIC(expr); |
3230 } | 3236 } |
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5560 return ON_STACK_REPLACEMENT; | 5566 return ON_STACK_REPLACEMENT; |
5561 } | 5567 } |
5562 | 5568 |
5563 DCHECK(interrupt_address == | 5569 DCHECK(interrupt_address == |
5564 isolate->builtins()->OsrAfterStackCheck()->entry()); | 5570 isolate->builtins()->OsrAfterStackCheck()->entry()); |
5565 return OSR_AFTER_STACK_CHECK; | 5571 return OSR_AFTER_STACK_CHECK; |
5566 } | 5572 } |
5567 } // namespace internal | 5573 } // namespace internal |
5568 } // namespace v8 | 5574 } // namespace v8 |
5569 #endif // V8_TARGET_ARCH_PPC | 5575 #endif // V8_TARGET_ARCH_PPC |
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