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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/compiler/ast-graph-builder.h" | 5 #include "src/compiler/ast-graph-builder.h" |
6 | 6 |
7 #include "src/compiler.h" | 7 #include "src/compiler.h" |
8 #include "src/compiler/control-builders.h" | 8 #include "src/compiler/control-builders.h" |
9 #include "src/compiler/machine-operator.h" | 9 #include "src/compiler/machine-operator.h" |
10 #include "src/compiler/node-properties.h" | 10 #include "src/compiler/node-properties.h" |
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2106 | 2106 |
2107 Node* AstGraphBuilder::BuildStackCheck() { | 2107 Node* AstGraphBuilder::BuildStackCheck() { |
2108 IfBuilder stack_check(this); | 2108 IfBuilder stack_check(this); |
2109 Node* limit = | 2109 Node* limit = |
2110 NewNode(jsgraph()->machine()->Load(kMachPtr), | 2110 NewNode(jsgraph()->machine()->Load(kMachPtr), |
2111 jsgraph()->ExternalConstant( | 2111 jsgraph()->ExternalConstant( |
2112 ExternalReference::address_of_stack_limit(isolate())), | 2112 ExternalReference::address_of_stack_limit(isolate())), |
2113 jsgraph()->ZeroConstant()); | 2113 jsgraph()->ZeroConstant()); |
2114 Node* stack = NewNode(jsgraph()->machine()->LoadStackPointer()); | 2114 Node* stack = NewNode(jsgraph()->machine()->LoadStackPointer()); |
2115 Node* tag = NewNode(jsgraph()->machine()->UintLessThan(), limit, stack); | 2115 Node* tag = NewNode(jsgraph()->machine()->UintLessThan(), limit, stack); |
2116 stack_check.If(tag); | 2116 stack_check.If(tag, BranchHint::kTrue); |
2117 stack_check.Then(); | 2117 stack_check.Then(); |
2118 stack_check.Else(); | 2118 stack_check.Else(); |
2119 Node* guard = NewNode(javascript()->CallRuntime(Runtime::kStackGuard, 0)); | 2119 Node* guard = NewNode(javascript()->CallRuntime(Runtime::kStackGuard, 0)); |
2120 stack_check.End(); | 2120 stack_check.End(); |
2121 return guard; | 2121 return guard; |
2122 } | 2122 } |
2123 | 2123 |
2124 | 2124 |
2125 void AstGraphBuilder::PrepareFrameState(Node* node, BailoutId ast_id, | 2125 void AstGraphBuilder::PrepareFrameState(Node* node, BailoutId ast_id, |
2126 OutputFrameStateCombine combine) { | 2126 OutputFrameStateCombine combine) { |
2127 if (OperatorProperties::HasFrameStateInput(node->op())) { | 2127 if (OperatorProperties::HasFrameStateInput(node->op())) { |
2128 DCHECK(NodeProperties::GetFrameStateInput(node)->opcode() == | 2128 DCHECK(NodeProperties::GetFrameStateInput(node)->opcode() == |
2129 IrOpcode::kDead); | 2129 IrOpcode::kDead); |
2130 NodeProperties::ReplaceFrameStateInput( | 2130 NodeProperties::ReplaceFrameStateInput( |
2131 node, environment()->Checkpoint(ast_id, combine)); | 2131 node, environment()->Checkpoint(ast_id, combine)); |
2132 } | 2132 } |
2133 } | 2133 } |
2134 | 2134 |
2135 } | 2135 } |
2136 } | 2136 } |
2137 } // namespace v8::internal::compiler | 2137 } // namespace v8::internal::compiler |
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