| Dan Gohman | 4298d2e | 2010-01-26 19:25:59 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -analyze -scalar-evolution |
| Nick Lewycky | a0f01ec | 2008-11-16 04:14:25 +0000 | [diff] [blame] | 2 | ; PR2602 |
| 3 | |
| 4 | define i32 @a() nounwind { |
| 5 | entry: |
| 6 | br label %bb |
| 7 | |
| 8 | bb: ; preds = %bb, %entry |
| 9 | %w.0 = phi i32 [ 0, %entry ], [ %tmp, %bb ] ; <i32> [#uses=2] |
| 10 | %e.0 = phi i32 [ 0, %entry ], [ %e.1, %bb ] ; <i32> [#uses=2] |
| 11 | %w.1 = add i32 0, %w.0 ; <i32>:0 [#uses=1] |
| 12 | %tmp = add i32 %e.0, %w.0 ; <i32>:1 [#uses=1] |
| 13 | %e.1 = add i32 %e.0, 1 ; <i32>:2 [#uses=1] |
| 14 | %cond = icmp eq i32 %w.1, -1 ; <i1>:3 [#uses=1] |
| 15 | br i1 %cond, label %return, label %bb |
| 16 | |
| 17 | return: ; preds = %bb |
| 18 | ret i32 undef |
| 19 | } |