1; RUN: llc < %s -march=x86 2target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 3target triple = "x86_64-unknown-linux-gnu" 4 5@c0 = common global i8 0, align 1 6 7define void @func() nounwind uwtable { 8entry: 9 %0 = load i8* @c0, align 1, !tbaa !0 10 %tobool = icmp ne i8 %0, 0 11 %conv = zext i1 %tobool to i8 12 %storemerge = shl nuw nsw i8 %conv, %conv 13 store i8 %storemerge, i8* @c0, align 1 14 ret void 15} 16 17!0 = metadata !{metadata !"omnipotent char", metadata !1} 18!1 = metadata !{metadata !"Simple C/C++ TBAA"} 19