52 lines
2.0 KiB
C++
52 lines
2.0 KiB
C++
// Copyright (c) 2019 Google LLC.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SOURCE_OPT_SPLIT_INVALID_UNREACHABLE_PASS_H_
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#define SOURCE_OPT_SPLIT_INVALID_UNREACHABLE_PASS_H_
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#include "source/opt/ir_context.h"
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#include "source/opt/module.h"
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#include "source/opt/pass.h"
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namespace spvtools {
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namespace opt {
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// Attempts to legalize for WebGPU by splitting up invalid unreachable blocks.
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// Specifically, looking for cases of unreachable merge-blocks and
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// continue-targets that are used more then once, which is illegal in WebGPU.
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class SplitInvalidUnreachablePass : public Pass {
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public:
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const char* name() const override { return "split-invalid-unreachable"; }
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Status Process() override;
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IRContext::Analysis GetPreservedAnalyses() override {
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return IRContext::kAnalysisInstrToBlockMapping |
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IRContext::kAnalysisDecorations | IRContext::kAnalysisCombinators |
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IRContext::kAnalysisCFG | IRContext::kAnalysisDominatorAnalysis |
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IRContext::kAnalysisLoopAnalysis | IRContext::kAnalysisNameMap |
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IRContext::kAnalysisScalarEvolution |
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IRContext::kAnalysisRegisterPressure |
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IRContext::kAnalysisValueNumberTable |
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IRContext::kAnalysisStructuredCFG |
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IRContext::kAnalysisBuiltinVarId |
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IRContext::kAnalysisIdToFuncMapping | IRContext::kAnalysisTypes |
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IRContext::kAnalysisDefUse | IRContext::kAnalysisConstants;
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}
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};
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} // namespace opt
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} // namespace spvtools
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#endif // SOURCE_OPT_SPLIT_INVALID_UNREACHABLE_PASS_H_
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