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https://gitee.com/openharmony/third_party_spirv-tools
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96 lines
3.2 KiB
C++
96 lines
3.2 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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#ifndef LIBSPIRV_OPT_CONSTRUCTS_H_
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#define LIBSPIRV_OPT_CONSTRUCTS_H_
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#include <functional>
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#include <memory>
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#include <utility>
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#include <vector>
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#include "basic_block.h"
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#include "instruction.h"
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#include "iterator.h"
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namespace spvtools {
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namespace ir {
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class Module;
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// A SPIR-V function.
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class Function {
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public:
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using iterator = UptrVectorIterator<BasicBlock>;
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using const_iterator = UptrVectorIterator<BasicBlock, true>;
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// Creates a function instance declared by the given OpFunction instruction
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// |def_inst|.
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inline explicit Function(std::unique_ptr<Instruction> def_inst);
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// Sets the enclosing module for this function.
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void SetParent(Module* module) { module_ = module; }
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// Appends a parameter to this function.
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inline void AddParameter(std::unique_ptr<Instruction> p);
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// Appends a basic block to this function.
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inline void AddBasicBlock(std::unique_ptr<BasicBlock> b);
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// Saves the given function end instruction.
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inline void SetFunctionEnd(std::unique_ptr<Instruction> end_inst);
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iterator begin() { return iterator(&blocks_, blocks_.begin()); }
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iterator end() { return iterator(&blocks_, blocks_.end()); }
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const_iterator cbegin() { return const_iterator(&blocks_, blocks_.cbegin()); }
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const_iterator cend() { return const_iterator(&blocks_, blocks_.cend()); }
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// Runs the given function |f| on each instruction in this function, and
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// optionally on debug line instructions that might precede them.
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void ForEachInst(const std::function<void(Instruction*)>& f,
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bool run_on_debug_line_insts = false);
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void ForEachInst(const std::function<void(const Instruction*)>& f,
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bool run_on_debug_line_insts = false) const;
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private:
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// The enclosing module.
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Module* module_;
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// The OpFunction instruction that begins the definition of this function.
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std::unique_ptr<Instruction> def_inst_;
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// All parameters to this function.
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std::vector<std::unique_ptr<Instruction>> params_;
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// All basic blocks inside this function.
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std::vector<std::unique_ptr<BasicBlock>> blocks_;
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// The OpFunctionEnd instruction.
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std::unique_ptr<Instruction> end_inst_;
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};
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inline Function::Function(std::unique_ptr<Instruction> def_inst)
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: module_(nullptr), def_inst_(std::move(def_inst)), end_inst_() {}
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inline void Function::AddParameter(std::unique_ptr<Instruction> p) {
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params_.emplace_back(std::move(p));
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}
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inline void Function::AddBasicBlock(std::unique_ptr<BasicBlock> b) {
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blocks_.emplace_back(std::move(b));
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}
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inline void Function::SetFunctionEnd(std::unique_ptr<Instruction> end_inst) {
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end_inst_ = std::move(end_inst);
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}
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} // namespace ir
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} // namespace spvtools
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#endif // LIBSPIRV_OPT_CONSTRUCTS_H_
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