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authorCraig Topper <craig.topper@gmail.com>2017-04-17 01:51:24 +0000
committerCraig Topper <craig.topper@gmail.com>2017-04-17 01:51:24 +0000
commit1a18a7c51e06f682223da2bab02e783acd5015cd (patch)
tree8df0903c4baff529b882106af31ab7cf093c8b85 /llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
parentb60f300afb374c65a90ebc6d96125a33e80f0034 (diff)
downloadbcm5719-llvm-1a18a7c51e06f682223da2bab02e783acd5015cd.tar.gz
bcm5719-llvm-1a18a7c51e06f682223da2bab02e783acd5015cd.zip
[InstCombine] Add support for vector srem->urem.
llvm-svn: 300437
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp')
-rw-r--r--llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp12
1 files changed, 5 insertions, 7 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp b/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
index de0c2a15b43..953e7f36467 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
@@ -1544,13 +1544,11 @@ Instruction *InstCombiner::visitSRem(BinaryOperator &I) {
// If the sign bits of both operands are zero (i.e. we can prove they are
// unsigned inputs), turn this into a urem.
- if (I.getType()->isIntegerTy()) {
- APInt Mask(APInt::getSignBit(I.getType()->getPrimitiveSizeInBits()));
- if (MaskedValueIsZero(Op1, Mask, 0, &I) &&
- MaskedValueIsZero(Op0, Mask, 0, &I)) {
- // X srem Y -> X urem Y, iff X and Y don't have sign bit set
- return BinaryOperator::CreateURem(Op0, Op1, I.getName());
- }
+ APInt Mask(APInt::getSignBit(I.getType()->getScalarSizeInBits()));
+ if (MaskedValueIsZero(Op1, Mask, 0, &I) &&
+ MaskedValueIsZero(Op0, Mask, 0, &I)) {
+ // X srem Y -> X urem Y, iff X and Y don't have sign bit set
+ return BinaryOperator::CreateURem(Op0, Op1, I.getName());
}
// If it's a constant vector, flip any negative values positive.
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