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authorSanjoy Das <sanjoy@playingwithpointers.com>2016-05-27 19:03:10 +0000
committerSanjoy Das <sanjoy@playingwithpointers.com>2016-05-27 19:03:10 +0000
commit6fff9dc932a708d0a5c78073e855f94990bffffc (patch)
tree31e7537325aa0128d0aff00bd22914694d4587d0 /llvm/lib/Transforms/Scalar/GVN.cpp
parenta75c77b127784476900e9d0c302aea026e039221 (diff)
downloadbcm5719-llvm-6fff9dc932a708d0a5c78073e855f94990bffffc.tar.gz
bcm5719-llvm-6fff9dc932a708d0a5c78073e855f94990bffffc.zip
[GVN] Preserve !range metadata when PRE'ing loads
Reviewers: dberlin, reames, george.burgess.iv Subscribers: mcrosier, llvm-commits Differential Revision: http://reviews.llvm.org/D20743 llvm-svn: 271034
Diffstat (limited to 'llvm/lib/Transforms/Scalar/GVN.cpp')
-rw-r--r--llvm/lib/Transforms/Scalar/GVN.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/GVN.cpp b/llvm/lib/Transforms/Scalar/GVN.cpp
index 97ec1eab654..5236c526e75 100644
--- a/llvm/lib/Transforms/Scalar/GVN.cpp
+++ b/llvm/lib/Transforms/Scalar/GVN.cpp
@@ -1567,6 +1567,8 @@ bool GVN::PerformLoadPRE(LoadInst *LI, AvailValInBlkVect &ValuesPerBlock,
NewLoad->setMetadata(LLVMContext::MD_invariant_load, MD);
if (auto *InvGroupMD = LI->getMetadata(LLVMContext::MD_invariant_group))
NewLoad->setMetadata(LLVMContext::MD_invariant_group, InvGroupMD);
+ if (auto *RangeMD = LI->getMetadata(LLVMContext::MD_range))
+ NewLoad->setMetadata(LLVMContext::MD_range, RangeMD);
// Transfer DebugLoc.
NewLoad->setDebugLoc(LI->getDebugLoc());
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