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| author | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2016-04-08 18:49:36 +0000 |
|---|---|---|
| committer | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2016-04-08 18:49:36 +0000 |
| commit | 69341e6abca92f7f118ee7bd99be0cdfc649386f (patch) | |
| tree | 543c8c36236826e8d0a4eb9d8f7d2c8a08b8f1d1 /llvm/lib/Transforms/Utils/ValueMapper.cpp | |
| parent | e05ff7c1a787cf2bf85e4c73947eea5df34ed8c3 (diff) | |
| download | llvm-69341e6abca92f7f118ee7bd99be0cdfc649386f.zip llvm-69341e6abca92f7f118ee7bd99be0cdfc649386f.tar.gz llvm-69341e6abca92f7f118ee7bd99be0cdfc649386f.tar.bz2 | |
ValueMapper: Don't memoize metadata when RF_NoModuleLevelChanges
Prevent the Metadata side-table in ValueMap from growing unnecessarily
when RF_NoModuleLevelChanges. As a drive-by, make ValueMap::hasMD,
which apparently had no users until I used it here for testing, actually
compile.
llvm-svn: 265828
Diffstat (limited to 'llvm/lib/Transforms/Utils/ValueMapper.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/ValueMapper.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Utils/ValueMapper.cpp b/llvm/lib/Transforms/Utils/ValueMapper.cpp index b18af19..472c2ca 100644 --- a/llvm/lib/Transforms/Utils/ValueMapper.cpp +++ b/llvm/lib/Transforms/Utils/ValueMapper.cpp @@ -658,7 +658,7 @@ Optional<Metadata *> Mapper::mapSimpleMetadata(const Metadata *MD) { // This is a module-level metadata. If nothing at the module level is // changing, use an identity mapping. if ((Flags & RF_NoModuleLevelChanges)) - return mapToSelf(MD); + return const_cast<Metadata *>(MD); if (auto *CMD = dyn_cast<ConstantAsMetadata>(MD)) { // Disallow recursion into metadata mapping through mapValue. |