forked from OSchip/llvm-project
55 lines
2.0 KiB
C++
55 lines
2.0 KiB
C++
//===- PassManager.cpp - Infrastructure for managing & running IR passes --===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/PassManager.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/IR/LLVMContext.h"
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using namespace llvm;
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// Explicit template instantiations and specialization defininitions for core
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// template typedefs.
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namespace llvm {
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template class AllAnalysesOn<Module>;
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template class AllAnalysesOn<Function>;
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template class PassManager<Module>;
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template class PassManager<Function>;
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template class AnalysisManager<Module>;
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template class AnalysisManager<Function>;
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template class InnerAnalysisManagerProxy<FunctionAnalysisManager, Module>;
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template class OuterAnalysisManagerProxy<ModuleAnalysisManager, Function>;
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template <>
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bool FunctionAnalysisManagerModuleProxy::Result::invalidate(
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Module &M, const PreservedAnalyses &PA,
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ModuleAnalysisManager::Invalidator &Inv) {
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// If this proxy isn't marked as preserved, then even if the result remains
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// valid, the key itself may no longer be valid, so we clear everything.
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//
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// Note that in order to preserve this proxy, a module pass must ensure that
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// the FAM has been completely updated to handle the deletion of functions.
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// Specifically, any FAM-cached results for those functions need to have been
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// forcibly cleared. When preserved, this proxy will only invalidate results
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// cached on functions *still in the module* at the end of the module pass.
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if (!PA.preserved(FunctionAnalysisManagerModuleProxy::ID())) {
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InnerAM->clear();
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return true;
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}
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// Otherwise propagate the invalidation event to all the remaining IR units.
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for (Function &F : M)
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InnerAM->invalidate(F, PA);
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// Return false to indicate that this result is still a valid proxy.
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return false;
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}
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}
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AnalysisKey PreservedAnalyses::AllAnalysesKey;
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