test/Analysis/ScalarEvolution/div-overflow.ll

; RUN: llvm-as < %s | opt -scalar-evolution -analyze -disable-output \
; RUN:  | grep {\\-->  ((-128 \\* %a) /u -128)}

; Don't let ScalarEvolution fold this div away.

define i8 @foo(i8 %a) {
        %t0 = shl i8 %a, 7
        %t1 = lshr i8 %t0, 7
        ret i8 %t1
}