mirror of
https://github.com/KhronosGroup/SPIRV-Tools
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81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
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// Copyright (c) 2019 Valve Corporation
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// Copyright (c) 2019 LunarG 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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#ifndef LIBSPIRV_OPT_RELAX_FLOAT_OPS_PASS_H_
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#define LIBSPIRV_OPT_RELAX_FLOAT_OPS_PASS_H_
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#include "source/opt/ir_builder.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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class RelaxFloatOpsPass : public Pass {
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public:
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RelaxFloatOpsPass() : Pass() {}
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~RelaxFloatOpsPass() override = default;
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IRContext::Analysis GetPreservedAnalyses() override {
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return IRContext::kAnalysisDefUse | IRContext::kAnalysisInstrToBlockMapping;
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}
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// See optimizer.hpp for pass user documentation.
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Status Process() override;
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const char* name() const override { return "convert-to-half-pass"; }
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private:
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// Return true if |inst| can have the RelaxedPrecision decoration applied
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// to it.
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bool IsRelaxable(Instruction* inst);
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// Return true if |inst| returns scalar, vector or matrix type with base
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// float and width 32
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bool IsFloat32(Instruction* inst);
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// Return true if |r_id| is decorated with RelaxedPrecision
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bool IsRelaxed(uint32_t r_id);
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// If |inst| is an instruction of float32-based type and is not decorated
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// RelaxedPrecision, add such a decoration to the module.
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bool ProcessInst(Instruction* inst);
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// Call ProcessInst on every instruction in |func|.
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bool ProcessFunction(Function* func);
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Pass::Status ProcessImpl();
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// Initialize state for converting to half
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void Initialize();
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// Set of float result core operations to be processed
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std::unordered_set<uint32_t> target_ops_core_f_rslt_;
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// Set of float operand core operations to be processed
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std::unordered_set<uint32_t> target_ops_core_f_opnd_;
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// Set of 450 extension operations to be processed
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std::unordered_set<uint32_t> target_ops_450_;
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// Set of sample operations
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std::unordered_set<uint32_t> sample_ops_;
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};
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} // namespace opt
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} // namespace spvtools
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#endif // LIBSPIRV_OPT_RELAX_FLOAT_OPS_PASS_H_
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