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d35a78db57
Fixes #4960 * Switches to using enum classes with an underlying type to avoid undefined behaviour
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
// Copyright (c) 2016 Google Inc.
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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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#include "source/opt/freeze_spec_constant_value_pass.h"
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#include "source/opt/ir_context.h"
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namespace spvtools {
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namespace opt {
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Pass::Status FreezeSpecConstantValuePass::Process() {
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bool modified = false;
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auto ctx = context();
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ctx->module()->ForEachInst([&modified, ctx](Instruction* inst) {
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switch (inst->opcode()) {
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case spv::Op::OpSpecConstant:
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inst->SetOpcode(spv::Op::OpConstant);
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modified = true;
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break;
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case spv::Op::OpSpecConstantTrue:
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inst->SetOpcode(spv::Op::OpConstantTrue);
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modified = true;
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break;
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case spv::Op::OpSpecConstantFalse:
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inst->SetOpcode(spv::Op::OpConstantFalse);
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modified = true;
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break;
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case spv::Op::OpDecorate:
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if (spv::Decoration(inst->GetSingleWordInOperand(1)) ==
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spv::Decoration::SpecId) {
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ctx->KillInst(inst);
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modified = true;
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}
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break;
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default:
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break;
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}
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});
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return modified ? Status::SuccessWithChange : Status::SuccessWithoutChange;
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}
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} // namespace opt
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} // namespace spvtools
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