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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/verifier.h" | 5 #include "src/compiler/verifier.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 #include <deque> | 8 #include <deque> |
9 #include <queue> | 9 #include <queue> |
10 #include <sstream> | 10 #include <sstream> |
11 #include <string> | 11 #include <string> |
12 | 12 |
13 #include "src/bit-vector.h" | 13 #include "src/bit-vector.h" |
14 #include "src/compiler/generic-algorithm.h" | 14 #include "src/compiler/all-nodes.h" |
15 #include "src/compiler/graph-inl.h" | |
16 #include "src/compiler/graph.h" | 15 #include "src/compiler/graph.h" |
17 #include "src/compiler/node.h" | 16 #include "src/compiler/node.h" |
18 #include "src/compiler/node-properties-inl.h" | 17 #include "src/compiler/node-properties-inl.h" |
19 #include "src/compiler/node-properties.h" | 18 #include "src/compiler/node-properties.h" |
20 #include "src/compiler/opcodes.h" | 19 #include "src/compiler/opcodes.h" |
21 #include "src/compiler/operator.h" | 20 #include "src/compiler/operator.h" |
22 #include "src/compiler/schedule.h" | 21 #include "src/compiler/schedule.h" |
23 #include "src/compiler/simplified-operator.h" | 22 #include "src/compiler/simplified-operator.h" |
24 #include "src/ostreams.h" | 23 #include "src/ostreams.h" |
25 | 24 |
26 namespace v8 { | 25 namespace v8 { |
27 namespace internal { | 26 namespace internal { |
28 namespace compiler { | 27 namespace compiler { |
29 | 28 |
30 | 29 |
31 static bool IsDefUseChainLinkPresent(Node* def, Node* use) { | 30 static bool IsDefUseChainLinkPresent(Node* def, Node* use) { |
32 auto const uses = def->uses(); | 31 auto const uses = def->uses(); |
33 return std::find(uses.begin(), uses.end(), use) != uses.end(); | 32 return std::find(uses.begin(), uses.end(), use) != uses.end(); |
34 } | 33 } |
35 | 34 |
36 | 35 |
37 static bool IsUseDefChainLinkPresent(Node* def, Node* use) { | 36 static bool IsUseDefChainLinkPresent(Node* def, Node* use) { |
38 auto const inputs = use->inputs(); | 37 auto const inputs = use->inputs(); |
39 return std::find(inputs.begin(), inputs.end(), def) != inputs.end(); | 38 return std::find(inputs.begin(), inputs.end(), def) != inputs.end(); |
40 } | 39 } |
41 | 40 |
42 | 41 |
43 class Verifier::Visitor : public NullNodeVisitor { | 42 class Verifier::Visitor { |
44 public: | 43 public: |
45 Visitor(Zone* z, Typing typed) : zone(z), typing(typed) {} | 44 Visitor(Zone* z, Typing typed) : zone(z), typing(typed) {} |
46 | 45 |
47 // Fulfills the PreNodeCallback interface. | 46 void Check(Node* node); |
48 void Pre(Node* node); | |
49 | 47 |
50 Zone* zone; | 48 Zone* zone; |
51 Typing typing; | 49 Typing typing; |
52 | 50 |
53 private: | 51 private: |
54 // TODO(rossberg): Get rid of these once we got rid of NodeProperties. | 52 // TODO(rossberg): Get rid of these once we got rid of NodeProperties. |
55 Bounds bounds(Node* node) { return NodeProperties::GetBounds(node); } | 53 Bounds bounds(Node* node) { return NodeProperties::GetBounds(node); } |
56 Node* ValueInput(Node* node, int i = 0) { | 54 Node* ValueInput(Node* node, int i = 0) { |
57 return NodeProperties::GetValueInput(node, i); | 55 return NodeProperties::GetValueInput(node, i); |
58 } | 56 } |
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106 << ") upper bound "; | 104 << ") upper bound "; |
107 bounds(input).upper->PrintTo(str); | 105 bounds(input).upper->PrintTo(str); |
108 str << " is not "; | 106 str << " is not "; |
109 type->PrintTo(str); | 107 type->PrintTo(str); |
110 V8_Fatal(__FILE__, __LINE__, str.str().c_str()); | 108 V8_Fatal(__FILE__, __LINE__, str.str().c_str()); |
111 } | 109 } |
112 } | 110 } |
113 }; | 111 }; |
114 | 112 |
115 | 113 |
116 void Verifier::Visitor::Pre(Node* node) { | 114 void Verifier::Visitor::Check(Node* node) { |
117 int value_count = node->op()->ValueInputCount(); | 115 int value_count = node->op()->ValueInputCount(); |
118 int context_count = OperatorProperties::GetContextInputCount(node->op()); | 116 int context_count = OperatorProperties::GetContextInputCount(node->op()); |
119 int frame_state_count = | 117 int frame_state_count = |
120 OperatorProperties::GetFrameStateInputCount(node->op()); | 118 OperatorProperties::GetFrameStateInputCount(node->op()); |
121 int effect_count = node->op()->EffectInputCount(); | 119 int effect_count = node->op()->EffectInputCount(); |
122 int control_count = node->op()->ControlInputCount(); | 120 int control_count = node->op()->ControlInputCount(); |
123 | 121 |
124 // Verify number of inputs matches up. | 122 // Verify number of inputs matches up. |
125 int input_count = value_count + context_count + frame_state_count + | 123 int input_count = value_count + context_count + frame_state_count + |
126 effect_count + control_count; | 124 effect_count + control_count; |
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747 case IrOpcode::kLoadStackPointer: | 745 case IrOpcode::kLoadStackPointer: |
748 case IrOpcode::kCheckedLoad: | 746 case IrOpcode::kCheckedLoad: |
749 case IrOpcode::kCheckedStore: | 747 case IrOpcode::kCheckedStore: |
750 // TODO(rossberg): Check. | 748 // TODO(rossberg): Check. |
751 break; | 749 break; |
752 } | 750 } |
753 } | 751 } |
754 | 752 |
755 | 753 |
756 void Verifier::Run(Graph* graph, Typing typing) { | 754 void Verifier::Run(Graph* graph, Typing typing) { |
757 Visitor visitor(graph->zone(), typing); | |
758 CHECK_NE(NULL, graph->start()); | 755 CHECK_NE(NULL, graph->start()); |
759 CHECK_NE(NULL, graph->end()); | 756 CHECK_NE(NULL, graph->end()); |
760 graph->VisitNodeInputsFromEnd(&visitor); | 757 Zone zone; |
| 758 Visitor visitor(&zone, typing); |
| 759 for (Node* node : AllNodes(&zone, graph).live) visitor.Check(node); |
761 } | 760 } |
762 | 761 |
763 | 762 |
764 // ----------------------------------------------------------------------------- | 763 // ----------------------------------------------------------------------------- |
765 | 764 |
766 static bool HasDominatingDef(Schedule* schedule, Node* node, | 765 static bool HasDominatingDef(Schedule* schedule, Node* node, |
767 BasicBlock* container, BasicBlock* use_block, | 766 BasicBlock* container, BasicBlock* use_block, |
768 int use_pos) { | 767 int use_pos) { |
769 BasicBlock* block = use_block; | 768 BasicBlock* block = use_block; |
770 while (true) { | 769 while (true) { |
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991 // Check inputs for all nodes in the block. | 990 // Check inputs for all nodes in the block. |
992 for (size_t i = 0; i < block->NodeCount(); i++) { | 991 for (size_t i = 0; i < block->NodeCount(); i++) { |
993 Node* node = block->NodeAt(i); | 992 Node* node = block->NodeAt(i); |
994 CheckInputsDominate(schedule, block, node, static_cast<int>(i) - 1); | 993 CheckInputsDominate(schedule, block, node, static_cast<int>(i) - 1); |
995 } | 994 } |
996 } | 995 } |
997 } | 996 } |
998 } | 997 } |
999 } | 998 } |
1000 } // namespace v8::internal::compiler | 999 } // namespace v8::internal::compiler |
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