1; RUN: opt < %s -gvn -S | not grep "%z2 =" 2; RUN: opt < %s -passes=gvn -S | not grep "%z2 =" 3 4define i32 @main() { 5block1: 6 %z1 = bitcast i32 0 to i32 7 br label %block2 8block2: 9 %z2 = bitcast i32 0 to i32 10 ret i32 %z2 11} 12