| Evan Cheng | 39dfb0f | 2011-07-07 03:55:05 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -march=arm -mattr=+v4t | FileCheck %s |
| Chris Lattner | 603572a | 2007-04-11 05:02:57 +0000 | [diff] [blame] | 2 | |
| 3 | ;; Integer absolute value, should produce something as good as: ARM: |
| 4 | ;; add r3, r0, r0, asr #31 |
| 5 | ;; eor r0, r3, r0, asr #31 |
| 6 | ;; bx lr |
| Chris Lattner | 603572a | 2007-04-11 05:02:57 +0000 | [diff] [blame] | 7 | |
| 8 | define i32 @test(i32 %a) { |
| 9 | %tmp1neg = sub i32 0, %a |
| 10 | %b = icmp sgt i32 %a, -1 |
| 11 | %abs = select i1 %b, i32 %a, i32 %tmp1neg |
| 12 | ret i32 %abs |
| Chris Lattner | d863b76 | 2010-02-08 23:47:34 +0000 | [diff] [blame] | 13 | ; CHECK: add r1, r0, r0, asr #31 |
| 14 | ; CHECK: eor r0, r1, r0, asr #31 |
| 15 | ; CHECK: bx lr |
| Chris Lattner | 603572a | 2007-04-11 05:02:57 +0000 | [diff] [blame] | 16 | } |