1 ; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -dce -instcombine -S 2 3 target 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" 4 target triple = "x86_64-apple-macosx10.8.0" 5 6 @a = common global i8 0, align 1 7 @b = common global i8 0, align 1 8 9 define void @f() nounwind uwtable ssp { 10 scalar.ph: 11 store i8 0, i8* inttoptr (i64 1 to i8*), align 1, !tbaa !0 12 %0 = load i8* @a, align 1, !tbaa !0 13 br label %for.body 14 15 for.body: 16 %mul16 = phi i8 [ 0, %scalar.ph ], [ %mul, %for.body ] ; <------- i8 induction var. 17 %c.015 = phi i8 [ undef, %scalar.ph ], [ %conv8, %for.body ] 18 %conv2 = sext i8 %c.015 to i32 19 %tobool = icmp ne i8 %c.015, 0 20 %.sink = select i1 %tobool, i8 %c.015, i8 %0 21 %mul = mul i8 %mul16, %.sink 22 %add = add nsw i32 %conv2, 1 23 %conv8 = trunc i32 %add to i8 24 %sext = shl i32 %add, 24 25 %phitmp14 = icmp slt i32 %sext, 268435456 26 br i1 %phitmp14, label %for.body, label %for.end 27 28 for.end: ; preds = %for.body 29 store i8 %mul, i8* @b, align 1, !tbaa !0 30 ret void 31 } 32 33 !0 = metadata !{metadata !"omnipotent char", metadata !1} 34 !1 = metadata !{metadata !"Simple C/C++ TBAA"} 35 36
