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Fixed a bug in masked load/store in reversed loop.

Browse Source 
Added a test.

The bug was submitted to bugzilla:
http://llvm.org/bugs/show_bug.cgi?id=22225



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226791 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Elena Demikhovsky
2015-01-22 08:20:06 +00:00
parent 884f263eab
commit 05e7ae1a7b
2 changed files with 84 additions and 0 deletions
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2
lib/Transforms/Vectorize/LoopVectorize.cpp
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@ -1875,6 +1875,7 @@ void InnerLoopVectorizer::vectorizeMemoryInstruction(Instruction *Instr) {
// wide store needs to start at the last vector element.
PartPtr = Builder.CreateGEP(Ptr, Builder.getInt32(-Part * VF));
PartPtr = Builder.CreateGEP(PartPtr, Builder.getInt32(1 - VF));
Mask[Part] = reverseVector(Mask[Part]);
}
Value *VecPtr = Builder.CreateBitCast(PartPtr,
@ -1903,6 +1904,7 @@ void InnerLoopVectorizer::vectorizeMemoryInstruction(Instruction *Instr) {
// wide load needs to start at the last vector element.
PartPtr = Builder.CreateGEP(Ptr, Builder.getInt32(-Part * VF));
PartPtr = Builder.CreateGEP(PartPtr, Builder.getInt32(1 - VF));
Mask[Part] = reverseVector(Mask[Part]);
}
Instruction* NewLI;