| Chris Lattner | 557a143 | 2002-05-08 21:34:22 +0000 | [diff] [blame] | 1 | ; With reassociation, constant folding can eliminate the 12 and -12 constants. |
| 2 | ; |
| Dan Gohman | f2f6ce6 | 2009-09-11 18:01:28 +0000 | [diff] [blame^] | 3 | ; RUN: opt < %s -reassociate -constprop -instcombine -die -S | not grep add |
| Chris Lattner | 557a143 | 2002-05-08 21:34:22 +0000 | [diff] [blame] | 4 | |
| Tanya Lattner | 7f40dea | 2008-03-19 04:36:04 +0000 | [diff] [blame] | 5 | define i32 @test(i32 %arg) { |
| 6 | %tmp1 = sub i32 -12, %arg ; <i32> [#uses=1] |
| 7 | %tmp2 = add i32 %tmp1, 12 ; <i32> [#uses=1] |
| 8 | ret i32 %tmp2 |
| Chris Lattner | 557a143 | 2002-05-08 21:34:22 +0000 | [diff] [blame] | 9 | } |
| Tanya Lattner | 7f40dea | 2008-03-19 04:36:04 +0000 | [diff] [blame] | 10 | |