From eb11fae6d08f479c0799db45860a98af528fa6e7 Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Sat, 28 Jul 2018 10:51:19 +0000 Subject: Vendor import of llvm trunk r338150: https://llvm.org/svn/llvm-project/llvm/trunk@338150 --- lib/Transforms/Utils/ValueMapper.cpp | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) (limited to 'lib/Transforms/Utils/ValueMapper.cpp') diff --git a/lib/Transforms/Utils/ValueMapper.cpp b/lib/Transforms/Utils/ValueMapper.cpp index 8c9ecbc3503e..55fff3f3872a 100644 --- a/lib/Transforms/Utils/ValueMapper.cpp +++ b/lib/Transforms/Utils/ValueMapper.cpp @@ -25,6 +25,7 @@ #include "llvm/IR/CallSite.h" #include "llvm/IR/Constant.h" #include "llvm/IR/Constants.h" +#include "llvm/IR/DebugInfoMetadata.h" #include "llvm/IR/DerivedTypes.h" #include "llvm/IR/Function.h" #include "llvm/IR/GlobalAlias.h" @@ -536,13 +537,23 @@ Optional MDNodeMapper::tryToMapOperand(const Metadata *Op) { return None; } +static Metadata *cloneOrBuildODR(const MDNode &N) { + auto *CT = dyn_cast(&N); + // If ODR type uniquing is enabled, we would have uniqued composite types + // with identifiers during bitcode reading, so we can just use CT. + if (CT && CT->getContext().isODRUniquingDebugTypes() && + CT->getIdentifier() != "") + return const_cast(CT); + return MDNode::replaceWithDistinct(N.clone()); +} + MDNode *MDNodeMapper::mapDistinctNode(const MDNode &N) { assert(N.isDistinct() && "Expected a distinct node"); assert(!M.getVM().getMappedMD(&N) && "Expected an unmapped node"); - DistinctWorklist.push_back(cast( - (M.Flags & RF_MoveDistinctMDs) - ? M.mapToSelf(&N) - : M.mapToMetadata(&N, MDNode::replaceWithDistinct(N.clone())))); + DistinctWorklist.push_back( + cast((M.Flags & RF_MoveDistinctMDs) + ? M.mapToSelf(&N) + : M.mapToMetadata(&N, cloneOrBuildODR(N)))); return DistinctWorklist.back(); } -- cgit v1.2.3