| // Copyright (c) 2016 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_FREEZE_SPEC_CONSTANT_VALUE_PASS_H_ |
| #define LIBSPIRV_OPT_FREEZE_SPEC_CONSTANT_VALUE_PASS_H_ |
| |
| #include "module.h" |
| #include "pass.h" |
| |
| namespace spvtools { |
| namespace opt { |
| |
| // The transformation pass that specializes the value of spec constants to |
| // their default values. This pass only processes the spec constants that have |
| // Spec ID decorations (defined by OpSpecConstant, OpSpecConstantTrue and |
| // OpSpecConstantFalse instructions) and replaces them with their front-end |
| // version counterparts (OpConstant, OpConstantTrue and OpConstantFalse). The |
| // corresponding Spec ID annotation instructions will also be removed. This |
| // pass does not fold the newly added front-end constants and does not process |
| // other spec constants defined by OpSpecConstantComposite or OpSpecConstantOp. |
| class FreezeSpecConstantValuePass : public Pass { |
| public: |
| const char* name() const override { return "freeze-spec-const"; } |
| bool Process(ir::Module*) override; |
| }; |
| |
| } // namespace opt |
| } // namespace spvtools |
| |
| #endif // LIBSPIRV_OPT_FREEZE_SPEC_CONSTANT_VALUE_PASS_H_ |