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https://github.com/KhronosGroup/SPIRV-Tools
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0e9f2f948a
Adding a map from an id to it set of OpName and OpMemberName instructions. This will be used in KillNameAndDecorates to kill the names for the ids that are being removed. In my test, the compile time for 50 shaders went from 1m57s to 55s. This was on linux using the release build. Fixes #1290.
77 lines
2.9 KiB
C++
77 lines
2.9 KiB
C++
// Copyright (c) 2018 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 LIBSPIRV_OPT_IF_CONVERSION_H_
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#define LIBSPIRV_OPT_IF_CONVERSION_H_
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#include "basic_block.h"
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#include "ir_builder.h"
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#include "pass.h"
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#include "types.h"
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namespace spvtools {
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namespace opt {
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// See optimizer.hpp for documentation.
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class IfConversion : public Pass {
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public:
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const char* name() const override { return "if-conversion"; }
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Status Process(ir::IRContext* context) override;
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ir::IRContext::Analysis GetPreservedAnalyses() override {
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return ir::IRContext::kAnalysisDefUse |
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ir::IRContext::kAnalysisDominatorAnalysis |
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ir::IRContext::kAnalysisInstrToBlockMapping |
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ir::IRContext::kAnalysisCFG | ir::IRContext::kAnalysisNameMap;
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}
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private:
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// Returns true if |id| is a valid type for use with OpSelect. OpSelect only
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// allows scalars, vectors and pointers as valid inputs.
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bool CheckType(uint32_t id);
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// Returns the basic block containing |id|.
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ir::BasicBlock* GetBlock(uint32_t id);
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// Returns the basic block for the |predecessor|'th index predecessor of
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// |phi|.
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ir::BasicBlock* GetIncomingBlock(ir::Instruction* phi, uint32_t predecessor);
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// Returns the instruction defining the |predecessor|'th index of |phi|.
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ir::Instruction* GetIncomingValue(ir::Instruction* phi, uint32_t predecessor);
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// Returns the id of a OpCompositeConstruct boolean vector. The composite has
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// the same number of elements as |vec_data_ty| and each member is |cond|.
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// |where| indicates the location in |block| to insert the composite
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// construct. If necessary, this function will also construct the necessary
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// type instructions for the boolean vector.
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uint32_t SplatCondition(analysis::Vector* vec_data_ty, uint32_t cond,
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InstructionBuilder* builder);
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// Returns true if none of |phi|'s users are in |block|.
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bool CheckPhiUsers(ir::Instruction* phi, ir::BasicBlock* block);
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// Returns |false| if |block| is not appropriate to transform. Only
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// transforms blocks with two predecessors. Neither incoming block can be
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// dominated by |block|. Both predecessors must share a common dominator that
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// is terminated by a conditional branch.
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bool CheckBlock(ir::BasicBlock* block, DominatorAnalysis* dominators,
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ir::BasicBlock** common);
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};
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} // namespace opt
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} // namespace spvtools
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#endif // LIBSPIRV_OPT_IF_CONVERSION_H_
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