forked from OSchip/llvm-project
115 lines
4.6 KiB
C++
115 lines
4.6 KiB
C++
//===- PassRegistry.cpp - Pass Registration Utilities ---------------------===//
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//
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// Copyright 2019 The MLIR Authors.
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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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// =============================================================================
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#include "mlir/Pass/PassRegistry.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Pass/PassManager.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/Support/ManagedStatic.h"
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using namespace mlir;
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/// Static mapping of all of the registered passes.
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static llvm::ManagedStatic<llvm::DenseMap<const PassID *, PassInfo>>
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passRegistry;
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/// Static mapping of all of the registered pass pipelines.
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static llvm::ManagedStatic<llvm::StringMap<PassPipelineInfo>>
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passPipelineRegistry;
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/// Utility to create a default registry function from a pass instance.
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static PassRegistryFunction
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buildDefaultRegistryFn(PassAllocatorFunction allocator) {
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return [=](PassManager &pm) { pm.addPass(allocator()); };
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}
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//===----------------------------------------------------------------------===//
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// PassPipelineInfo
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//===----------------------------------------------------------------------===//
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/// Constructor that accepts a pass allocator function instead of the standard
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/// registry function. This is useful for registering specializations of
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/// existing passes.
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PassPipelineRegistration::PassPipelineRegistration(
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StringRef arg, StringRef description, PassAllocatorFunction allocator) {
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registerPassPipeline(arg, description, buildDefaultRegistryFn(allocator));
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}
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void mlir::registerPassPipeline(StringRef arg, StringRef description,
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const PassRegistryFunction &function) {
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PassPipelineInfo pipelineInfo(arg, description, function);
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bool inserted = passPipelineRegistry->try_emplace(arg, pipelineInfo).second;
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assert(inserted && "Pass pipeline registered multiple times");
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(void)inserted;
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}
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//===----------------------------------------------------------------------===//
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// PassInfo
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//===----------------------------------------------------------------------===//
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PassInfo::PassInfo(StringRef arg, StringRef description, const PassID *passID,
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PassAllocatorFunction allocator)
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: PassRegistryEntry(arg, description, buildDefaultRegistryFn(allocator)),
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passID(passID) {}
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void mlir::registerPass(StringRef arg, StringRef description,
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const PassID *passID,
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const PassAllocatorFunction &function) {
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PassInfo passInfo(arg, description, passID, function);
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bool inserted = passRegistry->try_emplace(passID, passInfo).second;
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assert(inserted && "Pass registered multiple times");
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(void)inserted;
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}
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/// Returns the pass info for the specified pass class or null if unknown.
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const PassInfo *mlir::Pass::lookupPassInfo(const PassID *passID) {
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auto it = passRegistry->find(passID);
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if (it == passRegistry->end())
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return nullptr;
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return &it->getSecond();
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}
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//===----------------------------------------------------------------------===//
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// PassNameParser
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//===----------------------------------------------------------------------===//
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PassNameParser::PassNameParser(llvm::cl::Option &opt)
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: llvm::cl::parser<const PassRegistryEntry *>(opt) {
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/// Add the pass entries.
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for (const auto &kv : *passRegistry) {
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addLiteralOption(kv.second.getPassArgument(), &kv.second,
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kv.second.getPassDescription());
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}
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/// Add the pass pipeline entries.
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for (const auto &kv : *passPipelineRegistry) {
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addLiteralOption(kv.second.getPassArgument(), &kv.second,
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kv.second.getPassDescription());
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}
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}
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void PassNameParser::printOptionInfo(const llvm::cl::Option &O,
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size_t GlobalWidth) const {
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PassNameParser *TP = const_cast<PassNameParser *>(this);
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llvm::array_pod_sort(TP->Values.begin(), TP->Values.end(),
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[](const PassNameParser::OptionInfo *VT1,
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const PassNameParser::OptionInfo *VT2) {
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return VT1->Name.compare(VT2->Name);
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});
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using llvm::cl::parser;
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parser<const PassRegistryEntry *>::printOptionInfo(O, GlobalWidth);
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}
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