llvm/test/Analysis/ScalarEvolution/div-overflow.ll
2010-01-26 19:25:59 +00:00

11 lines
244 B
LLVM

; RUN: opt < %s -scalar-evolution -analyze \
; 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
}