| ; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution |
| ; RUN: opt < %s -disable-output -scalar-evolution |
| ; PR2602 |
| |
| define i32 @a() nounwind { |
| entry: |
| br label %bb |
| |
| bb: ; preds = %bb, %entry |
| %w.0 = phi i32 [ 0, %entry ], [ %tmp, %bb ] ; <i32> [#uses=2] |
| %e.0 = phi i32 [ 0, %entry ], [ %e.1, %bb ] ; <i32> [#uses=2] |
| %w.1 = add i32 0, %w.0 ; <i32>:0 [#uses=1] |
| %tmp = add i32 %e.0, %w.0 ; <i32>:1 [#uses=1] |
| %e.1 = add i32 %e.0, 1 ; <i32>:2 [#uses=1] |
| %cond = icmp eq i32 %w.1, -1 ; <i1>:3 [#uses=1] |
| br i1 %cond, label %return, label %bb |
| |
| return: ; preds = %bb |
| ret i32 undef |
| } |
