1 ; RUN: opt < %s -gvn -enable-pre -S | grep "b.pre" 2 3 define i32 @main(i32 %p, i32 %q) { 4 block1: 5 %cmp = icmp eq i32 %p, %q 6 br i1 %cmp, label %block2, label %block3 7 8 block2: 9 %a = add i32 %p, 1 10 br label %block4 11 12 block3: 13 br label %block4 14 15 block4: 16 %b = add i32 %p, 1 17 ret i32 %b 18 } 19
