SPIRV-Tools/source/opt/workaround1209.h

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// Copyright (c) 2018 Google 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 LIBSPIRV_OPT_WORKAROUND1209_H_
#define LIBSPIRV_OPT_WORKAROUND1209_H_
#include "pass.h"
namespace spvtools {
namespace opt {
// See optimizer.hpp for documentation.
class Workaround1209 : public Pass {
public:
const char* name() const override { return "workaround-1209"; }
Status Process(ir::IRContext*) override;
private:
// There is at least one driver where an OpUnreachable found in a loop is not
// handled correctly. Workaround that by changing the OpUnreachable into a
// branch to the loop merge.
//
// Returns true if the code changed.
bool RemoveOpUnreachableInLoops();
};
} // namespace opt
} // namespace spvtools
#endif // LIBSPIRV_OPT_WORKAROUND1209_H_