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[ScalarizeMaskedMemIntrin] Fix the alignment calculation for the scalar stores of a masked store expansion. 

It should be the minimum of the original alignment and the scalar size.

llvm-svn: 343284
This commit is contained in:
Craig Topper 2018-09-28 01:06:13 +00:00
parent 92b992164d
commit fdf4c76ca0
2 changed files with 3 additions and 3 deletions
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2
llvm/lib/CodeGen/ScalarizeMaskedMemIntrin.cpp
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@ -276,7 +276,7 @@ static void scalarizeMaskedStore(CallInst *CI) {
}
// Adjust alignment for the scalar instruction.
AlignVal = std::max(AlignVal, EltTy->getPrimitiveSizeInBits() / 8);
AlignVal = std::min(AlignVal, EltTy->getPrimitiveSizeInBits() / 8);
// Bitcast %addr fron i8* to EltTy*
Type *NewPtrType =
EltTy->getPointerTo(cast<PointerType>(Ptr->getType())->getAddressSpace());

4
llvm/test/Transforms/ScalarizeMaskedMemIntrin/X86/expand-masked-store.ll
View File

@ -9,7 +9,7 @@ define void @scalarize_v2i64(<2 x i64>* %p, <2 x i1> %mask, <2 x i64> %data) {
; CHECK: cond.store:
; CHECK-NEXT: [[TMP3:%.*]] = extractelement <2 x i64> [[DATA:%.*]], i32 0
; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds i64, i64* [[TMP1]], i32 0
; CHECK-NEXT: store i64 [[TMP3]], i64* [[TMP4]], align 128
; CHECK-NEXT: store i64 [[TMP3]], i64* [[TMP4]], align 8
; CHECK-NEXT: br label [[ELSE]]
; CHECK: else:
; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x i1> [[MASK]], i32 1
@ -17,7 +17,7 @@ define void @scalarize_v2i64(<2 x i64>* %p, <2 x i1> %mask, <2 x i64> %data) {
; CHECK: cond.store1:
; CHECK-NEXT: [[TMP6:%.*]] = extractelement <2 x i64> [[DATA]], i32 1
; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i64, i64* [[TMP1]], i32 1
; CHECK-NEXT: store i64 [[TMP6]], i64* [[TMP7]], align 128
; CHECK-NEXT: store i64 [[TMP6]], i64* [[TMP7]], align 8
; CHECK-NEXT: br label [[ELSE2]]
; CHECK: else2:
; CHECK-NEXT: ret void