| Dan Gohman | 0404c87 | 2009-09-28 18:40:27 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-rotate -loop-reduce -disable-output |
| 2 | |
| 3 | define fastcc void @foo() nounwind { |
| 4 | BB: |
| 5 | br label %BB1 |
| 6 | |
| 7 | BB1: ; preds = %BB19, %BB |
| 8 | br label %BB4 |
| 9 | |
| 10 | BB2: ; preds = %BB4 |
| 11 | %tmp = bitcast i32 undef to i32 ; <i32> [#uses=1] |
| 12 | br label %BB4 |
| 13 | |
| 14 | BB4: ; preds = %BB3, %BB1 |
| 15 | %tmp5 = phi i32 [ undef, %BB1 ], [ %tmp, %BB2 ] ; <i32> [#uses=1] |
| 16 | br i1 false, label %BB8, label %BB2 |
| 17 | |
| 18 | BB8: ; preds = %BB6 |
| 19 | %tmp7 = bitcast i32 %tmp5 to i32 ; <i32> [#uses=2] |
| 20 | br i1 false, label %BB9, label %BB13 |
| 21 | |
| 22 | BB9: ; preds = %BB12, %BB8 |
| 23 | %tmp10 = phi i32 [ %tmp11, %BB12 ], [ %tmp7, %BB8 ] ; <i32> [#uses=2] |
| 24 | %tmp11 = add i32 %tmp10, 1 ; <i32> [#uses=1] |
| 25 | br label %BB12 |
| 26 | |
| 27 | BB12: ; preds = %BB9 |
| 28 | br i1 false, label %BB9, label %BB17 |
| 29 | |
| 30 | BB13: ; preds = %BB15, %BB8 |
| 31 | %tmp14 = phi i32 [ %tmp16, %BB15 ], [ %tmp7, %BB8 ] ; <i32> [#uses=1] |
| 32 | br label %BB15 |
| 33 | |
| 34 | BB15: ; preds = %BB13 |
| 35 | %tmp16 = add i32 %tmp14, -1 ; <i32> [#uses=1] |
| 36 | br i1 false, label %BB13, label %BB18 |
| 37 | |
| 38 | BB17: ; preds = %BB12 |
| 39 | br label %BB19 |
| 40 | |
| 41 | BB18: ; preds = %BB15 |
| 42 | br label %BB19 |
| 43 | |
| 44 | BB19: ; preds = %BB18, %BB17 |
| 45 | %tmp20 = phi i32 [ %tmp10, %BB17 ], [ undef, %BB18 ] ; <i32> [#uses=0] |
| 46 | br label %BB1 |
| 47 | } |