blob: 8ddd39945610a9b58395f503f381048914cd3ca2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_COMPILER_OPTIMIZING_GRAPH_CHECKER_H_
#define ART_COMPILER_OPTIMIZING_GRAPH_CHECKER_H_
#include "nodes.h"
namespace art {
// A control-flow graph visitor performing various checks.
class GraphChecker : public HGraphVisitor {
public:
GraphChecker(ArenaAllocator* allocator, HGraph* graph)
: HGraphVisitor(graph),
allocator_(allocator),
errors_(allocator, 0) {}
// Check `block`.
virtual void VisitBasicBlock(HBasicBlock* block) OVERRIDE;
// Check `instruction`.
virtual void VisitInstruction(HInstruction* instruction) OVERRIDE;
// Was the last visit of the graph valid?
bool IsValid() const {
return errors_.IsEmpty();
}
// Get the list of detected errors.
const GrowableArray<std::string>& GetErrors() const {
return errors_;
}
protected:
ArenaAllocator* const allocator_;
// The block currently visited.
HBasicBlock* current_block_ = nullptr;
// Errors encountered while checking the graph.
GrowableArray<std::string> errors_;
private:
DISALLOW_COPY_AND_ASSIGN(GraphChecker);
};
// An SSA graph visitor performing various checks.
class SSAChecker : public GraphChecker {
public:
typedef GraphChecker super_type;
SSAChecker(ArenaAllocator* allocator, HGraph* graph)
: GraphChecker(allocator, graph) {}
// Perform SSA form checks on `block`.
virtual void VisitBasicBlock(HBasicBlock* block) OVERRIDE;
// Perform SSA form checks on `instruction`.
virtual void VisitInstruction(HInstruction* instruction) OVERRIDE;
private:
DISALLOW_COPY_AND_ASSIGN(SSAChecker);
};
} // namespace art
#endif // ART_COMPILER_OPTIMIZING_GRAPH_CHECKER_H_
|
