| Cameron Zwarich | 4a60b93 | 2011-02-10 23:38:10 +0000 | [diff] [blame] | 1 | ; RUN: opt -loop-simplify -S < %s | FileCheck %s |
| Dan Gohman | c2f4006 | 2010-08-14 00:43:09 +0000 | [diff] [blame] | 2 | |
| 3 | ; LoopSimplify shouldn't split loop backedges that use indirectbr. |
| 4 | |
| 5 | ; CHECK: bb1: ; preds = %bb5, %bb |
| 6 | ; CHECK-NEXT: indirectbr |
| 7 | |
| 8 | ; CHECK: bb5: ; preds = %bb1 |
| 9 | ; CHECK-NEXT: br label %bb1{{$}} |
| 10 | |
| 11 | define void @foo(i8* %p) nounwind { |
| 12 | bb: |
| 13 | br label %bb1 |
| 14 | |
| 15 | bb1: ; preds = %bb5, %bb1, %bb |
| 16 | indirectbr i8* %p, [label %bb6, label %bb7, label %bb1, label %bb2, label %bb3, label %bb5, label %bb4] |
| 17 | |
| 18 | bb2: ; preds = %bb1 |
| 19 | ret void |
| 20 | |
| 21 | bb3: ; preds = %bb1 |
| 22 | ret void |
| 23 | |
| 24 | bb4: ; preds = %bb1 |
| 25 | ret void |
| 26 | |
| 27 | bb5: ; preds = %bb1 |
| 28 | br label %bb1 |
| 29 | |
| 30 | bb6: ; preds = %bb1 |
| 31 | ret void |
| 32 | |
| 33 | bb7: ; preds = %bb1 |
| 34 | ret void |
| 35 | } |