div-overflow.ll 246 Bytes Raw Blame History Permalink 1 2 3 4 5 6 7 8 9 10 11 ; RUN: opt < %s -scalar-evolution -analyze | FileCheck %s ; CHECK: --> ((-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 }