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Change greater than to greater than or equal so that an identical sized store to the same offset is treated as completing overwriting.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161857 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper
2012-08-14 07:32:05 +00:00
parent bb57febe3c
commit 750d7616c6
2 changed files with 20 additions and 1 deletions
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2
lib/Transforms/Scalar/DeadStoreElimination.cpp
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@@ -378,7 +378,7 @@ static OverwriteResult isOverwrite(const AliasAnalysis::Location &Later,
//
// We have to be careful here as *Off is signed while *.Size is unsigned.
if (EarlierOff >= LaterOff &&
Later.Size > Earlier.Size &&
Later.Size >= Earlier.Size &&
uint64_t(EarlierOff - LaterOff) + Earlier.Size <= Later.Size)
return OverwriteComplete;