| Dan Gohman | 3c7d308 | 2009-09-11 18:01:28 +0000 | [diff] [blame] | 1 | ;RUN: opt < %s -simplifycfg -disable-output |
| Devang Patel | 8bb3141 | 2007-12-22 01:32:53 +0000 | [diff] [blame] | 2 | target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" |
| 3 | |
| Devang Patel | cf7c0e3 | 2007-12-28 22:59:48 +0000 | [diff] [blame] | 4 | define i32 @bork() nounwind { |
| Devang Patel | 8bb3141 | 2007-12-22 01:32:53 +0000 | [diff] [blame] | 5 | entry: |
| Devang Patel | cf7c0e3 | 2007-12-28 22:59:48 +0000 | [diff] [blame] | 6 | br label %bb5.outer |
| 7 | |
| 8 | bb5.outer.loopexit: ; preds = %bb5 |
| 9 | br label %bb5.outer |
| 10 | |
| 11 | bb5.outer: ; preds = %bb5.outer.loopexit, %entry |
| 12 | %undo.0.ph = phi i32 [ 0, %entry ], [ 1, %bb5.outer.loopexit ] ; <i32> [#uses=1] |
| Devang Patel | 8bb3141 | 2007-12-22 01:32:53 +0000 | [diff] [blame] | 13 | br label %bb5 |
| 14 | |
| Devang Patel | cf7c0e3 | 2007-12-28 22:59:48 +0000 | [diff] [blame] | 15 | bb5: ; preds = %bb5, %bb5.outer |
| 16 | %tmp6 = tail call i32 (...)* @foo( ) nounwind ; <i32> [#uses=1] |
| 17 | switch i32 %tmp6, label %bb13 [ |
| 18 | i32 -1, label %bb10 |
| 19 | i32 102, label %bb5 |
| 20 | i32 110, label %bb5.outer.loopexit |
| Devang Patel | 8bb3141 | 2007-12-22 01:32:53 +0000 | [diff] [blame] | 21 | ] |
| 22 | |
| Devang Patel | 8bb3141 | 2007-12-22 01:32:53 +0000 | [diff] [blame] | 23 | bb10: ; preds = %bb5 |
| Devang Patel | cf7c0e3 | 2007-12-28 22:59:48 +0000 | [diff] [blame] | 24 | %tmp12 = tail call i32 (...)* @bar( i32 %undo.0.ph ) nounwind ; <i32> [#uses=0] |
| 25 | br label %UnifiedReturnBlock |
| Devang Patel | 8bb3141 | 2007-12-22 01:32:53 +0000 | [diff] [blame] | 26 | |
| Devang Patel | cf7c0e3 | 2007-12-28 22:59:48 +0000 | [diff] [blame] | 27 | bb13: ; preds = %bb5 |
| 28 | br label %UnifiedReturnBlock |
| Devang Patel | 8bb3141 | 2007-12-22 01:32:53 +0000 | [diff] [blame] | 29 | |
| Devang Patel | cf7c0e3 | 2007-12-28 22:59:48 +0000 | [diff] [blame] | 30 | UnifiedReturnBlock: ; preds = %bb13, %bb10 |
| 31 | %UnifiedRetVal = phi i32 [ 1, %bb10 ], [ 258, %bb13 ] ; <i32> [#uses=1] |
| 32 | ret i32 %UnifiedRetVal |
| Devang Patel | 8bb3141 | 2007-12-22 01:32:53 +0000 | [diff] [blame] | 33 | } |
| 34 | |
| 35 | declare i32 @foo(...) |
| 36 | |
| 37 | declare i32 @bar(...) |