| Chris Lattner | 557a143 | 2002-05-08 21:34:22 +0000 | [diff] [blame] | 1 | ; With reassociation, constant folding can eliminate the +/- 30 constants. |
| 2 | ; |
| Tanya Lattner | 7f40dea | 2008-03-19 04:36:04 +0000 | [diff] [blame^] | 3 | ; RUN: llvm-as < %s | opt -reassociate -constprop -instcombine -die | llvm-dis | not grep 30 |
| 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 %reg109, i32 %reg1111) { |
| 6 | %reg115 = add i32 %reg109, -30 ; <i32> [#uses=1] |
| 7 | %reg116 = add i32 %reg115, %reg1111 ; <i32> [#uses=1] |
| 8 | %reg117 = add i32 %reg116, 30 ; <i32> [#uses=1] |
| 9 | ret i32 %reg117 |
| Chris Lattner | 557a143 | 2002-05-08 21:34:22 +0000 | [diff] [blame] | 10 | } |
| Tanya Lattner | 7f40dea | 2008-03-19 04:36:04 +0000 | [diff] [blame^] | 11 | |