mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-10-19 03:20:14 +00:00
75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
// 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_PASS_MANAGER_H_
|
|
#define LIBSPIRV_OPT_PASS_MANAGER_H_
|
|
|
|
#include <cassert>
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "module.h"
|
|
#include "passes.h"
|
|
|
|
namespace spvtools {
|
|
namespace opt {
|
|
|
|
// The pass manager, responsible for tracking and running passes.
|
|
// Clients should first call AddPass() to add passes and then call Run()
|
|
// to run on a module. Passes are executed in the exact order of added.
|
|
//
|
|
// TODO(antiagainst): The pass manager is fairly simple right now. Eventually it
|
|
// should support pass dependency, common functionality (like def-use analysis)
|
|
// sharing, etc.
|
|
class PassManager {
|
|
public:
|
|
// Adds a pass.
|
|
void AddPass(std::unique_ptr<Pass> pass) {
|
|
passes_.push_back(std::move(pass));
|
|
}
|
|
// Uses the argument to construct a pass instance of type PassT, and adds the
|
|
// pass instance to this pass manger.
|
|
template <typename PassT, typename... Args>
|
|
void AddPass(Args&&... args) {
|
|
passes_.emplace_back(new PassT(std::forward<Args>(args)...));
|
|
}
|
|
|
|
// Returns the number of passes added.
|
|
uint32_t NumPasses() const { return static_cast<uint32_t>(passes_.size()); }
|
|
// Returns a pointer to the |index|th pass added.
|
|
Pass* GetPass(uint32_t index) const {
|
|
assert(index < passes_.size() && "index out of bound");
|
|
return passes_[index].get();
|
|
}
|
|
|
|
// Runs all passes on the given |module|.
|
|
void Run(ir::Module* module) {
|
|
bool modified = false;
|
|
for (const auto& pass : passes_) {
|
|
modified |= pass->Process(module);
|
|
}
|
|
// Set the Id bound in the header in case a pass forgot to do so.
|
|
if (modified) module->SetIdBound(module->ComputeIdBound());
|
|
}
|
|
|
|
private:
|
|
// A vector of passes. Order matters.
|
|
std::vector<std::unique_ptr<Pass>> passes_;
|
|
};
|
|
|
|
} // namespace opt
|
|
} // namespace spvtools
|
|
|
|
#endif // LIBSPIRV_OPT_PASS_MANAGER_H_
|