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// Copyright (c) 2021 The Khronos Group Inc.
// Copyright (c) 2021 Valve Corporation
// Copyright (c) 2021 LunarG Inc.
//
// 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 SOURCE_OPT_INTERP_FIXUP_H
#define SOURCE_OPT_INTERP_FIXUP_H
#include "source/opt/ir_context.h"
#include "source/opt/module.h"
#include "source/opt/pass.h"
namespace spvtools {
namespace opt {
// Replaces overloaded internal form for GLSLstd450Interpolate* instructions
// with external form. Specifically, removes OpLoad from the first argument
// and replaces it with the pointer for the OpLoad. glslang generates the
// internal form. This pass is called as part of glslang HLSL legalization.
class InterpFixupPass : public Pass {
public:
const char* name() const override { return "interp-fixup"; }
Status Process() override;
IRContext::Analysis GetPreservedAnalyses() override {
return IRContext::kAnalysisInstrToBlockMapping |
IRContext::kAnalysisDecorations | IRContext::kAnalysisCombinators |
IRContext::kAnalysisCFG | IRContext::kAnalysisDominatorAnalysis |
IRContext::kAnalysisLoopAnalysis | IRContext::kAnalysisNameMap |
IRContext::kAnalysisScalarEvolution |
IRContext::kAnalysisRegisterPressure |
IRContext::kAnalysisValueNumberTable |
IRContext::kAnalysisStructuredCFG |
IRContext::kAnalysisBuiltinVarId |
IRContext::kAnalysisIdToFuncMapping | IRContext::kAnalysisTypes |
IRContext::kAnalysisDefUse | IRContext::kAnalysisConstants;
}
};
} // namespace opt
} // namespace spvtools
#endif // SOURCE_OPT_INTERP_FIXUP_H
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