1// Copyright (c) 2018 The Khronos Group Inc.
2// Copyright (c) 2018 Valve Corporation
3// Copyright (c) 2018 LunarG Inc.
4//
5// Licensed under the Apache License, Version 2.0 (the "License");
6// you may not use this file except in compliance with the License.
7// You may obtain a copy of the License at
8//
9// http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing, software
12// distributed under the License is distributed on an "AS IS" BASIS,
13// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14// See the License for the specific language governing permissions and
15// limitations under the License.
16
17#include "source/opt/composite.h"
18
19#include <vector>
20
21#include "source/opt/ir_context.h"
22#include "source/opt/iterator.h"
23#include "spirv/1.2/GLSL.std.450.h"
24
25namespace spvtools {
26namespace opt {
27
28bool ExtInsMatch(const std::vector<uint32_t>& extIndices,
29 const Instruction* insInst, const uint32_t extOffset) {
30 uint32_t numIndices = static_cast<uint32_t>(extIndices.size()) - extOffset;
31 if (numIndices != insInst->NumInOperands() - 2) return false;
32 for (uint32_t i = 0; i < numIndices; ++i)
33 if (extIndices[i + extOffset] != insInst->GetSingleWordInOperand(i + 2))
34 return false;
35 return true;
36}
37
38bool ExtInsConflict(const std::vector<uint32_t>& extIndices,
39 const Instruction* insInst, const uint32_t extOffset) {
40 if (extIndices.size() - extOffset == insInst->NumInOperands() - 2)
41 return false;
42 uint32_t extNumIndices = static_cast<uint32_t>(extIndices.size()) - extOffset;
43 uint32_t insNumIndices = insInst->NumInOperands() - 2;
44 uint32_t numIndices = std::min(extNumIndices, insNumIndices);
45 for (uint32_t i = 0; i < numIndices; ++i)
46 if (extIndices[i + extOffset] != insInst->GetSingleWordInOperand(i + 2))
47 return false;
48 return true;
49}
50
51} // namespace opt
52} // namespace spvtools
53