| Dan Gohman | b1e1e82 | 2009-09-08 16:50:01 +0000 | [diff] [blame^] | 1 | ; RUN: opt %s -sccp | llvm-dis | grep {ret i32 0} |
| Chris Lattner | e0e50db | 2004-12-11 23:14:40 +0000 | [diff] [blame] | 2 | |
| 3 | ; Test that SCCP has basic knowledge of when and/or nuke overdefined values. |
| 4 | |
| Tanya Lattner | f396cc8 | 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 |
| Chris Lattner | e0e50db | 2004-12-11 23:14:40 +0000 | [diff] [blame] | 8 | } |
| Tanya Lattner | f396cc8 | 2008-03-19 04:14:49 +0000 | [diff] [blame] | 9 | |