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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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/js-inlining-heuristic.h" | 5 #include "src/compiler/js-inlining-heuristic.h" |
6 | 6 |
7 #include "src/compiler.h" | 7 #include "src/compiler.h" |
8 #include "src/compiler/node-matchers.h" | 8 #include "src/compiler/node-matchers.h" |
9 #include "src/objects-inl.h" | 9 #include "src/objects-inl.h" |
10 | 10 |
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58 | 58 |
59 // Quick check on the size of the AST to avoid parsing large candidate. | 59 // Quick check on the size of the AST to avoid parsing large candidate. |
60 if (function->shared()->ast_node_count() > FLAG_max_inlined_nodes) { | 60 if (function->shared()->ast_node_count() > FLAG_max_inlined_nodes) { |
61 return NoChange(); | 61 return NoChange(); |
62 } | 62 } |
63 | 63 |
64 // Avoid inlining within or across the boundary of asm.js code. | 64 // Avoid inlining within or across the boundary of asm.js code. |
65 if (info_->shared_info()->asm_function()) return NoChange(); | 65 if (info_->shared_info()->asm_function()) return NoChange(); |
66 if (function->shared()->asm_function()) return NoChange(); | 66 if (function->shared()->asm_function()) return NoChange(); |
67 | 67 |
68 // Stop inlinining once the maximum allowed level is reached. | 68 // Stop inlining once the maximum allowed level is reached. |
69 int level = 0; | 69 int level = 0; |
70 for (Node* frame_state = NodeProperties::GetFrameStateInput(node); | 70 for (Node* frame_state = NodeProperties::GetFrameStateInput(node); |
71 frame_state->opcode() == IrOpcode::kFrameState; | 71 frame_state->opcode() == IrOpcode::kFrameState; |
72 frame_state = NodeProperties::GetFrameStateInput(frame_state)) { | 72 frame_state = NodeProperties::GetFrameStateInput(frame_state)) { |
73 if (++level > FLAG_max_inlining_levels) return NoChange(); | 73 if (++level > FLAG_max_inlining_levels) return NoChange(); |
74 } | 74 } |
75 | 75 |
76 // Gather feedback on how often this call site has been hit before. | 76 // Gather feedback on how often this call site has been hit before. |
77 int calls = -1; // Same default as CallICNexus::ExtractCallCount. | 77 int calls = -1; // Same default as CallICNexus::ExtractCallCount. |
78 if (node->opcode() == IrOpcode::kJSCallFunction) { | 78 if (node->opcode() == IrOpcode::kJSCallFunction) { |
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146 candidate.node->id(), candidate.calls, | 146 candidate.node->id(), candidate.calls, |
147 candidate.function->shared()->SourceSize(), | 147 candidate.function->shared()->SourceSize(), |
148 candidate.function->shared()->ast_node_count(), | 148 candidate.function->shared()->ast_node_count(), |
149 candidate.function->shared()->DebugName()->ToCString().get()); | 149 candidate.function->shared()->DebugName()->ToCString().get()); |
150 } | 150 } |
151 } | 151 } |
152 | 152 |
153 } // namespace compiler | 153 } // namespace compiler |
154 } // namespace internal | 154 } // namespace internal |
155 } // namespace v8 | 155 } // namespace v8 |
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