| Evan Cheng | b92f1b2 | 2008-06-11 19:07:54 +0000 | [diff] [blame^] | 1 | ; RUN: llvm-as < %s | opt -tailduplicate -taildup-threshold=3 -stats -disable-output |& |
| 2 | ; RUN: not grep tailduplicate |
| 3 | |
| 4 | define i32 @foo(i32 %l) nounwind { |
| 5 | entry: |
| 6 | %cond = icmp eq i32 %l, 1 ; <i1> [#uses=1] |
| 7 | br i1 %cond, label %bb, label %bb9 |
| 8 | |
| 9 | bb: ; preds = %entry |
| 10 | br label %bb9 |
| 11 | |
| 12 | bb5: ; preds = %bb9 |
| 13 | %tmp7 = call i32 (...)* @bar( i32 %x.0 ) nounwind ; <i32> [#uses=1] |
| 14 | br label %bb9 |
| 15 | |
| 16 | bb9: ; preds = %bb5, %bb, %entry |
| 17 | %x.0 = phi i32 [ 0, %entry ], [ %tmp7, %bb5 ], [ 1525, %bb ] ; <i32> [#uses=2] |
| 18 | %l_addr.0 = phi i32 [ %l, %entry ], [ %tmp11, %bb5 ], [ %l, %bb ] ; <i32> [#uses=1] |
| 19 | %tmp11 = add i32 %l_addr.0, -1 ; <i32> [#uses=2] |
| 20 | %tmp13 = icmp eq i32 %tmp11, -1 ; <i1> [#uses=1] |
| 21 | br i1 %tmp13, label %bb15, label %bb5 |
| 22 | |
| 23 | bb15: ; preds = %bb9 |
| 24 | ret i32 %x.0 |
| 25 | } |
| 26 | |
| 27 | declare i32 @bar(...) |