| Dan Gohman | 3c7d308 | 2009-09-11 18:01:28 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -sccp -S | grep {ret i32 0} |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 2 | |
| 3 | ; Test that SCCP has basic knowledge of when and/or nuke overdefined values. | ||||
| 4 | |||||
| Tanya Lattner | ba93e2d | 2008-03-19 04:14:49 +0000 | [diff] [blame] | 5 | define i32 @test(i32 %X) { |
| 6 | %Y = and i32 %X, 0 ; <i32> [#uses=1] | ||||
| 7 | ret i32 %Y | ||||
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 8 | } |
| Tanya Lattner | ba93e2d | 2008-03-19 04:14:49 +0000 | [diff] [blame] | 9 | |