[llvm] [InstCombine] Simplify fractions when there is no overflow (PR #92949)

[Craig Topper via llvm-commits]

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@@ -380,7 +380,7 @@ define i32 @test26(i32 %a) {
 
 define i32 @test27(i32 %a) {
 ; CHECK-LABEL: @test27(
-; CHECK-NEXT:    [[DIV:%.*]] = shl nuw i32 [[A:%.*]], 1
+; CHECK-NEXT:    [[DIV:%.*]] = shl nuw nsw i32 [[A:%.*]], 1
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topperc wrote:

Is this from a different change?

https://github.com/llvm/llvm-project/pull/92949