1 ; RUN: opt < %s -gvnpre -S | grep b.gvnpre
3 define i32 @extract() {
4 entry: ; preds = %cond_false, %entry
5 %foo = add <2 x i32> < i32 1, i32 1 >, < i32 1, i32 1 >
6 br i1 true, label %cond_true, label %cond_false
12 %a = shufflevector <2 x i32> %foo, <2 x i32> undef, <2 x i32> < i32 0, i32 1 >
16 %b = shufflevector <2 x i32> %foo, <2 x i32> undef, <2 x i32> < i32 0, i32 1 >