| Dan Gohman | 3c7d308 | 2009-09-11 18:01:28 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -lcssa -S | \ |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 2 | ; RUN: grep {%X.1.lcssa} |
| Dan Gohman | 3c7d308 | 2009-09-11 18:01:28 +0000 | [diff] [blame] | 3 | ; RUN: opt < %s -lcssa -S | \ |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 4 | ; RUN: not grep {%X.1.lcssa1} |
| 5 | |
| Tanya Lattner | 348c618 | 2008-03-25 04:26:08 +0000 | [diff] [blame] | 6 | declare i1 @c1() |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 7 | |
| Tanya Lattner | 348c618 | 2008-03-25 04:26:08 +0000 | [diff] [blame] | 8 | declare i1 @c2() |
| 9 | |
| 10 | define i32 @foo() { |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 11 | entry: |
| Tanya Lattner | 348c618 | 2008-03-25 04:26:08 +0000 | [diff] [blame] | 12 | br label %loop_begin |
| 13 | loop_begin: ; preds = %loop_body.2, %entry |
| 14 | br i1 true, label %loop_body.1, label %loop_exit2 |
| 15 | loop_body.1: ; preds = %loop_begin |
| 16 | %X.1 = add i32 0, 1 ; <i32> [#uses=1] |
| 17 | %rel.1 = call i1 @c1( ) ; <i1> [#uses=1] |
| 18 | br i1 %rel.1, label %loop_exit, label %loop_body.2 |
| 19 | loop_body.2: ; preds = %loop_body.1 |
| 20 | %rel.2 = call i1 @c2( ) ; <i1> [#uses=1] |
| 21 | br i1 %rel.2, label %loop_exit, label %loop_begin |
| 22 | loop_exit: ; preds = %loop_body.2, %loop_body.1 |
| 23 | ret i32 %X.1 |
| 24 | loop_exit2: ; preds = %loop_begin |
| 25 | ret i32 1 |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 26 | } |
| Tanya Lattner | 348c618 | 2008-03-25 04:26:08 +0000 | [diff] [blame] | 27 | |