1; RUN: opt < %s -instcombine -S | not grep 34
2
3define i32 @test(i32 %X) {
4        ; Do not fold into shr X, 34, as this uses undefined behavior!
5        %Y = ashr i32 %X, 17            ; <i32> [#uses=1]
6        %Z = ashr i32 %Y, 17            ; <i32> [#uses=1]
7        ret i32 %Z
8}
9
10define i32 @test2(i32 %X) {
11        ; Do not fold into shl X, 34, as this uses undefined behavior!
12        %Y = shl i32 %X, 17             ; <i32> [#uses=1]
13        %Z = shl i32 %Y, 17             ; <i32> [#uses=1]
14        ret i32 %Z
15}
16