1// Copyright (c) 2017 Pierre Moreau
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15#ifndef SOURCE_OPT_REMOVE_DUPLICATES_PASS_H_
16#define SOURCE_OPT_REMOVE_DUPLICATES_PASS_H_
17
18#include <unordered_map>
19#include <vector>
20
21#include "source/opt/decoration_manager.h"
22#include "source/opt/def_use_manager.h"
23#include "source/opt/ir_context.h"
24#include "source/opt/module.h"
25#include "source/opt/pass.h"
26
27namespace spvtools {
28namespace opt {
29
30using IdDecorationsList =
31 std::unordered_map<uint32_t, std::vector<Instruction*>>;
32
33// See optimizer.hpp for documentation.
34class RemoveDuplicatesPass : public Pass {
35 public:
36 const char* name() const override { return "remove-duplicates"; }
37 Status Process() override;
38
39 private:
40 // Remove duplicate capabilities from the module
41 //
42 // Returns true if the module was modified, false otherwise.
43 bool RemoveDuplicateCapabilities() const;
44 // Remove duplicate extended instruction imports from the module
45 //
46 // Returns true if the module was modified, false otherwise.
47 bool RemoveDuplicatesExtInstImports() const;
48 // Remove duplicate types from the module
49 //
50 // Returns true if the module was modified, false otherwise.
51 bool RemoveDuplicateTypes() const;
52 // Remove duplicate decorations from the module
53 //
54 // Returns true if the module was modified, false otherwise.
55 bool RemoveDuplicateDecorations() const;
56};
57
58} // namespace opt
59} // namespace spvtools
60
61#endif // SOURCE_OPT_REMOVE_DUPLICATES_PASS_H_
62