| Dan Gohman | 4298d2e | 2010-01-26 19:25:59 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -analyze -scalar-evolution \ |
| Dan Gohman | 169195e | 2010-01-09 18:17:45 +0000 | [diff] [blame] | 2 | ; RUN: -scalar-evolution-max-iterations=0 | grep {Loop %bb: backedge-taken count is 100} |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 3 | ; PR1533 |
| 4 | |
| 5 | @array = weak global [101 x i32] zeroinitializer, align 32 ; <[100 x i32]*> [#uses=1] |
| 6 | |
| 7 | define void @loop(i32 %x) { |
| 8 | entry: |
| 9 | br label %bb |
| 10 | |
| 11 | bb: ; preds = %bb, %entry |
| 12 | %i.01.0 = phi i32 [ 100, %entry ], [ %tmp4, %bb ] ; <i32> [#uses=2] |
| 13 | %tmp1 = getelementptr [101 x i32]* @array, i32 0, i32 %i.01.0 ; <i32*> [#uses=1] |
| 14 | store i32 %x, i32* %tmp1 |
| 15 | %tmp4 = add i32 %i.01.0, -1 ; <i32> [#uses=2] |
| 16 | %tmp7 = icmp sgt i32 %tmp4, -1 ; <i1> [#uses=1] |
| 17 | br i1 %tmp7, label %bb, label %return |
| 18 | |
| 19 | return: ; preds = %bb |
| 20 | ret void |
| 21 | } |