| Dan Gohman | 8a977e2 | 2010-01-26 19:25:59 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -analyze -scalar-evolution \ |
| Chandler Carruth | 4177e6f | 2012-07-02 12:47:22 +0000 | [diff] [blame] | 2 | ; RUN: -scalar-evolution-max-iterations=0 | grep "backedge-taken count is 13" |
| Nick Lewycky | 9a2f931 | 2007-09-27 14:12:54 +0000 | [diff] [blame] | 3 | ; PR1706 |
| 4 | |
| 5 | define i32 @f() { |
| 6 | entry: |
| 7 | br label %bb5 |
| 8 | |
| 9 | bb: ; preds = %bb5 |
| 10 | %tmp2 = shl i32 %j.0, 1 ; <i32> [#uses=1] |
| 11 | %tmp4 = add i32 %i.0, 268435456 ; <i32> [#uses=1] |
| 12 | br label %bb5 |
| 13 | |
| 14 | bb5: ; preds = %bb, %entry |
| 15 | %j.0 = phi i32 [ 1, %entry ], [ %tmp2, %bb ] ; <i32> [#uses=2] |
| 16 | %i.0 = phi i32 [ -1879048192, %entry ], [ %tmp4, %bb ] ; <i32> [#uses=2] |
| 17 | %tmp7 = icmp slt i32 %i.0, 1610612736 ; <i1> [#uses=1] |
| 18 | br i1 %tmp7, label %bb, label %return |
| 19 | |
| 20 | return: ; preds = %bb5 |
| 21 | ret i32 %j.0 |
| 22 | } |