| ; RUN: opt < %s -tailduplicate -disable-output | |
| define i32 @foo() { | |
| entry: | |
| br label %return.i | |
| after_ret.i: ; No predecessors! | |
| br label %return.i | |
| return.i: ; preds = %after_ret.i, %entry | |
| %tmp.3 = ptrtoint i32* null to i32 ; <i32> [#uses=1] | |
| br label %return.i1 | |
| after_ret.i1: ; No predecessors! | |
| br label %return.i1 | |
| return.i1: ; preds = %after_ret.i1, %return.i | |
| %tmp.8 = sub i32 %tmp.3, 0 ; <i32> [#uses=0] | |
| ret i32 0 | |
| } | |