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-rw-r--r--llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp4
-rw-r--r--llvm/test/Transforms/InstCombine/select_meta.ll2
-rw-r--r--llvm/test/Transforms/LoopVectorize/reduction.ll2
3 files changed, 5 insertions, 3 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
index dc8e8df421e..f1f2a6606e2 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
@@ -354,7 +354,9 @@ Instruction *InstCombiner::foldSelectOpOp(SelectInst &SI, Instruction *TI,
Value *Op0 = MatchIsOpZero ? MatchOp : NewSI;
Value *Op1 = MatchIsOpZero ? NewSI : MatchOp;
if (auto *BO = dyn_cast<BinaryOperator>(TI)) {
- return BinaryOperator::Create(BO->getOpcode(), Op0, Op1);
+ BinaryOperator *NewBO = BinaryOperator::Create(BO->getOpcode(), Op0, Op1);
+ NewBO->copyIRFlags(BO);
+ return NewBO;
}
if (auto *TGEP = dyn_cast<GetElementPtrInst>(TI)) {
auto *FGEP = cast<GetElementPtrInst>(FI);
diff --git a/llvm/test/Transforms/InstCombine/select_meta.ll b/llvm/test/Transforms/InstCombine/select_meta.ll
index d11b8310c3d..28caac45f96 100644
--- a/llvm/test/Transforms/InstCombine/select_meta.ll
+++ b/llvm/test/Transforms/InstCombine/select_meta.ll
@@ -7,7 +7,7 @@ define i32 @foo(i32) local_unnamed_addr #0 {
; CHECK-LABEL: @foo(
; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i32 %0, 2
; CHECK-NEXT: [[DOTV:%.*]] = select i1 [[TMP2]], i32 20, i32 -20, !prof ![[$MD1:[0-9]+]]
-; CHECK-NEXT: [[TMP3:%.*]] = add i32 [[DOTV]], %0
+; CHECK-NEXT: [[TMP3:%.*]] = add nsw i32 [[DOTV]], %0
; CHECK-NEXT: ret i32 [[TMP3]]
;
%2 = icmp sgt i32 %0, 2
diff --git a/llvm/test/Transforms/LoopVectorize/reduction.ll b/llvm/test/Transforms/LoopVectorize/reduction.ll
index 994ea03e39a..1246cd5ca82 100644
--- a/llvm/test/Transforms/LoopVectorize/reduction.ll
+++ b/llvm/test/Transforms/LoopVectorize/reduction.ll
@@ -325,7 +325,7 @@ for.end: ; preds = %for.body, %entry
; We can vectorize conditional reductions with multi-input phis.
; CHECK: reduction_conditional
-; CHECK: fadd <4 x float>
+; CHECK: fadd fast <4 x float>
define float @reduction_conditional(float* %A, float* %B, float* %C, float %S) {
entry:
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