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| author | Chris Lattner <sabre@nondot.org> | 2011-07-14 18:53:50 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2011-07-14 18:53:50 +0000 |
| commit | 4692be11a9ecee983760b0420ef2775a4c3706dc (patch) | |
| tree | 0bfac2d7fba184013a51931b00f7df549d9b17d5 /lib/Transforms/Utils/ValueMapper.cpp | |
| parent | 62f67f86fea55562ef28650b87f73924855438fa (diff) | |
| download | llvm-4692be11a9ecee983760b0420ef2775a4c3706dc.tar.gz llvm-4692be11a9ecee983760b0420ef2775a4c3706dc.tar.bz2 llvm-4692be11a9ecee983760b0420ef2775a4c3706dc.tar.xz | |
Stop the ValueMapper from calling getAllMetadata, which unpacks DebugLoc into
an MDNode. This saves a bunch of time and memory in the IR linker, e.g. when
doing LTO of files with debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135172 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/ValueMapper.cpp')
| -rw-r--r-- | lib/Transforms/Utils/ValueMapper.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Transforms/Utils/ValueMapper.cpp b/lib/Transforms/Utils/ValueMapper.cpp index 30fc60081d..e728fd16a3 100644 --- a/lib/Transforms/Utils/ValueMapper.cpp +++ b/lib/Transforms/Utils/ValueMapper.cpp @@ -167,9 +167,10 @@ void llvm::RemapInstruction(Instruction *I, ValueToValueMapTy &VMap, } } - // Remap attached metadata. + // Remap attached metadata. Don't bother remapping DebugLoc, it can never + // have mappings to do. SmallVector<std::pair<unsigned, MDNode *>, 4> MDs; - I->getAllMetadata(MDs); + I->getAllMetadataOtherThanDebugLoc(MDs); for (SmallVectorImpl<std::pair<unsigned, MDNode *> >::iterator MI = MDs.begin(), ME = MDs.end(); MI != ME; ++MI) { MDNode *Old = MI->second; |