| Dan Gohman | 3c7d308 | 2009-09-11 18:01:28 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -simplifycfg -disable-output |
| Devang Patel | 5bb06f7 | 2008-09-09 01:06:56 +0000 | [diff] [blame] | 2 | ; PR 2777 |
| 3 | @g_103 = common global i32 0 ; <i32*> [#uses=1] |
| 4 | |
| 5 | define i32 @func_127(i32 %p_129) nounwind { |
| 6 | entry: |
| 7 | load i32* @g_103, align 4 ; <i32>:0 [#uses=1] |
| 8 | icmp eq i32 %0, 0 ; <i1>:1 [#uses=2] |
| 9 | br i1 %1, label %bb6.preheader, label %entry.return_crit_edge |
| 10 | |
| 11 | entry.return_crit_edge: ; preds = %entry |
| 12 | br label %return |
| 13 | |
| 14 | bb6.preheader: ; preds = %entry |
| 15 | br i1 %1, label %bb6.preheader.split.us, label %bb6.preheader.split |
| 16 | |
| 17 | bb6.preheader.split.us: ; preds = %bb6.preheader |
| 18 | br label %return.loopexit.split |
| 19 | |
| 20 | bb6.preheader.split: ; preds = %bb6.preheader |
| 21 | br label %bb6 |
| 22 | |
| 23 | bb6: ; preds = %bb17.bb6_crit_edge, %bb6.preheader.split |
| 24 | %indvar35 = phi i32 [ 0, %bb6.preheader.split ], [ %indvar.next36, %bb17.bb6_crit_edge ] ; <i32> [#uses=1] |
| 25 | %p_129_addr.3.reg2mem.0 = phi i32 [ %p_129_addr.2, %bb17.bb6_crit_edge ], [ %p_129, %bb6.preheader.split ] ; <i32> [#uses=3] |
| 26 | icmp eq i32 %p_129_addr.3.reg2mem.0, 0 ; <i1>:2 [#uses=1] |
| 27 | br i1 %2, label %bb6.bb17_crit_edge, label %bb8 |
| 28 | |
| 29 | bb6.bb17_crit_edge: ; preds = %bb6 |
| 30 | br label %bb17 |
| 31 | |
| 32 | bb8: ; preds = %bb6 |
| 33 | br label %bb13 |
| 34 | |
| 35 | bb13: ; preds = %bb8 |
| 36 | br label %bb17 |
| 37 | |
| 38 | bb17: ; preds = %bb13, %bb6.bb17_crit_edge |
| 39 | %p_129_addr.2 = phi i32 [ %p_129_addr.3.reg2mem.0, %bb13 ], [ %p_129_addr.3.reg2mem.0, %bb6.bb17_crit_edge ] ; <i32> [#uses=1] |
| 40 | %indvar.next36 = add i32 %indvar35, 1 ; <i32> [#uses=2] |
| 41 | %exitcond37 = icmp eq i32 %indvar.next36, -1 ; <i1> [#uses=1] |
| 42 | br i1 %exitcond37, label %return.loopexit, label %bb17.bb6_crit_edge |
| 43 | |
| 44 | bb17.bb6_crit_edge: ; preds = %bb17 |
| 45 | br label %bb6 |
| 46 | |
| 47 | return.loopexit: ; preds = %bb17 |
| 48 | br label %return.loopexit.split |
| 49 | |
| 50 | return.loopexit.split: ; preds = %return.loopexit, %bb6.preheader.split.us |
| 51 | br label %return |
| 52 | |
| 53 | return: ; preds = %return.loopexit.split, %entry.return_crit_edge |
| 54 | ret i32 1 |
| 55 | } |
| 56 | |
| 57 | define i32 @func_135(i8 zeroext %p_137, i32 %p_138, i32 %p_140) nounwind { |
| 58 | entry: |
| 59 | ret i32 undef |
| 60 | } |