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ede600377c
(Reapply after revert in e9ce1a588030d8d4004f5d7e443afe46245e9a92 due to Fuchsia test failures. Removed changes in lib/ExecutionEngine/ other than error categories, to be checked in more detail and reapplied separately.) Bulk remove many of the more trivial uses of ManagedStatic in the llvm directory, either by defining a new getter function or, in many cases, moving the static variable directly into the only function that uses it. Differential Revision: https://reviews.llvm.org/D129120
121 lines
3.9 KiB
C++
121 lines
3.9 KiB
C++
//===- PassRegistry.cpp - Pass Registration Implementation ----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the PassRegistry, with which passes are registered on
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// initialization, and supports the PassManager in dependency resolution.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/PassRegistry.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/Pass.h"
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#include "llvm/PassInfo.h"
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#include <cassert>
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#include <memory>
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#include <utility>
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using namespace llvm;
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PassRegistry *PassRegistry::getPassRegistry() {
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static PassRegistry PassRegistryObj;
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return &PassRegistryObj;
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}
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//===----------------------------------------------------------------------===//
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// Accessors
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//
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PassRegistry::~PassRegistry() = default;
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const PassInfo *PassRegistry::getPassInfo(const void *TI) const {
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sys::SmartScopedReader<true> Guard(Lock);
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return PassInfoMap.lookup(TI);
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}
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const PassInfo *PassRegistry::getPassInfo(StringRef Arg) const {
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sys::SmartScopedReader<true> Guard(Lock);
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return PassInfoStringMap.lookup(Arg);
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}
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//===----------------------------------------------------------------------===//
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// Pass Registration mechanism
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//
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void PassRegistry::registerPass(const PassInfo &PI, bool ShouldFree) {
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sys::SmartScopedWriter<true> Guard(Lock);
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bool Inserted =
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PassInfoMap.insert(std::make_pair(PI.getTypeInfo(), &PI)).second;
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assert(Inserted && "Pass registered multiple times!");
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(void)Inserted;
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PassInfoStringMap[PI.getPassArgument()] = &PI;
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// Notify any listeners.
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for (auto *Listener : Listeners)
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Listener->passRegistered(&PI);
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if (ShouldFree)
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ToFree.push_back(std::unique_ptr<const PassInfo>(&PI));
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}
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void PassRegistry::enumerateWith(PassRegistrationListener *L) {
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sys::SmartScopedReader<true> Guard(Lock);
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for (auto PassInfoPair : PassInfoMap)
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L->passEnumerate(PassInfoPair.second);
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}
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/// Analysis Group Mechanisms.
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void PassRegistry::registerAnalysisGroup(const void *InterfaceID,
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const void *PassID,
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PassInfo &Registeree, bool isDefault,
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bool ShouldFree) {
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PassInfo *InterfaceInfo = const_cast<PassInfo *>(getPassInfo(InterfaceID));
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if (!InterfaceInfo) {
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// First reference to Interface, register it now.
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registerPass(Registeree);
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InterfaceInfo = &Registeree;
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}
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assert(Registeree.isAnalysisGroup() &&
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"Trying to join an analysis group that is a normal pass!");
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if (PassID) {
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PassInfo *ImplementationInfo = const_cast<PassInfo *>(getPassInfo(PassID));
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assert(ImplementationInfo &&
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"Must register pass before adding to AnalysisGroup!");
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sys::SmartScopedWriter<true> Guard(Lock);
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// Make sure we keep track of the fact that the implementation implements
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// the interface.
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ImplementationInfo->addInterfaceImplemented(InterfaceInfo);
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if (isDefault) {
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assert(InterfaceInfo->getNormalCtor() == nullptr &&
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"Default implementation for analysis group already specified!");
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assert(
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ImplementationInfo->getNormalCtor() &&
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"Cannot specify pass as default if it does not have a default ctor");
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InterfaceInfo->setNormalCtor(ImplementationInfo->getNormalCtor());
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}
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}
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if (ShouldFree)
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ToFree.push_back(std::unique_ptr<const PassInfo>(&Registeree));
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}
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void PassRegistry::addRegistrationListener(PassRegistrationListener *L) {
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sys::SmartScopedWriter<true> Guard(Lock);
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Listeners.push_back(L);
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}
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void PassRegistry::removeRegistrationListener(PassRegistrationListener *L) {
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sys::SmartScopedWriter<true> Guard(Lock);
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auto I = llvm::find(Listeners, L);
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Listeners.erase(I);
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}
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