| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 1 | ; This test checks to make sure phi nodes are updated properly |
| 2 | ; |
| Tanya Lattner | 003eae5 | 2008-03-10 07:21:50 +0000 | [diff] [blame] | 3 | ; RUN: llvm-as < %s | opt -tailduplicate -disable-output |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 4 | |
| Tanya Lattner | 003eae5 | 2008-03-10 07:21:50 +0000 | [diff] [blame] | 5 | define i32 @test(i1 %c, i32 %X, i32 %Y) { |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 6 | br label %L |
| Tanya Lattner | 003eae5 | 2008-03-10 07:21:50 +0000 | [diff] [blame] | 7 | L: ; preds = %F, %0 |
| 8 | %A = add i32 %X, %Y ; <i32> [#uses=1] |
| 9 | br i1 %c, label %T, label %F |
| 10 | F: ; preds = %L |
| 11 | br i1 %c, label %L, label %T |
| 12 | T: ; preds = %F, %L |
| 13 | %V = phi i32 [ %A, %L ], [ 0, %F ] ; <i32> [#uses=1] |
| 14 | ret i32 %V |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 15 | } |
| Tanya Lattner | 003eae5 | 2008-03-10 07:21:50 +0000 | [diff] [blame] | 16 | |