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| author | Hal Finkel <hfinkel@anl.gov> | 2016-04-26 02:06:06 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2016-04-26 02:06:06 +0000 |
| commit | e4c0c1679b8a20836643cba98773fb1cdfb7afe8 (patch) | |
| tree | 980e54fe009bf42976d15b7dc9aad6f017d77cde /llvm/lib/Transforms/Utils/Local.cpp | |
| parent | 411d31ad72456ba88c0b0bee0faba2b774add65f (diff) | |
| download | bcm5719-llvm-e4c0c1679b8a20836643cba98773fb1cdfb7afe8.tar.gz bcm5719-llvm-e4c0c1679b8a20836643cba98773fb1cdfb7afe8.zip | |
[SimplifyCFG] Preserve !llvm.mem.parallel_loop_access when merging
When SimplifyCFG merges identical instructions from both sides of a diamond, it
can preserve !llvm.mem.parallel_loop_access (as it does with most of the other
metadata). There's no real data or control dependency change in this case.
llvm-svn: 267515
Diffstat (limited to 'llvm/lib/Transforms/Utils/Local.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/Local.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp index 75eda97d0a3..82961a678be 100644 --- a/llvm/lib/Transforms/Utils/Local.cpp +++ b/llvm/lib/Transforms/Utils/Local.cpp @@ -1539,6 +1539,7 @@ void llvm::combineMetadata(Instruction *K, const Instruction *J, K->setMetadata(Kind, MDNode::getMostGenericAliasScope(JMD, KMD)); break; case LLVMContext::MD_noalias: + case LLVMContext::MD_mem_parallel_loop_access: K->setMetadata(Kind, MDNode::intersect(JMD, KMD)); break; case LLVMContext::MD_range: |
