| Chris Lattner | 2077ffa | 2002-05-06 02:37:38 +0000 | [diff] [blame] | 1 | ; Test CFG simplify removal of branch instructions... |
| 2 | ; | ||||
| Tanya Lattner | f04d8d1 | 2008-03-18 03:45:45 +0000 | [diff] [blame] | 3 | ; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis | not grep br |
| Chris Lattner | 2077ffa | 2002-05-06 02:37:38 +0000 | [diff] [blame] | 4 | |
| Tanya Lattner | f04d8d1 | 2008-03-18 03:45:45 +0000 | [diff] [blame] | 5 | define void @test1() { |
| 6 | br label %BB1 | ||||
| 7 | BB1: ; preds = %0 | ||||
| 8 | ret void | ||||
| Chris Lattner | 2077ffa | 2002-05-06 02:37:38 +0000 | [diff] [blame] | 9 | } |
| 10 | |||||
| Tanya Lattner | f04d8d1 | 2008-03-18 03:45:45 +0000 | [diff] [blame] | 11 | define void @test2() { |
| 12 | ret void | ||||
| 13 | BB1: ; No predecessors! | ||||
| 14 | ret void | ||||
| Chris Lattner | 2077ffa | 2002-05-06 02:37:38 +0000 | [diff] [blame] | 15 | } |
| 16 | |||||
| Tanya Lattner | f04d8d1 | 2008-03-18 03:45:45 +0000 | [diff] [blame] | 17 | define void @test3(i1 %T) { |
| 18 | br i1 %T, label %BB1, label %BB1 | ||||
| 19 | BB1: ; preds = %0, %0 | ||||
| 20 | ret void | ||||
| Chris Lattner | 2077ffa | 2002-05-06 02:37:38 +0000 | [diff] [blame] | 21 | } |
| 22 | |||||
| 23 | |||||
| Tanya Lattner | f04d8d1 | 2008-03-18 03:45:45 +0000 | [diff] [blame] | 24 | |
| 25 | |||||