| Dan Gohman | 36a0947 | 2009-09-08 23:54:48 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=x86-64 -stats |& \ |
| Evan Cheng | f06e6c2 | 2011-03-02 01:08:17 +0000 | [diff] [blame] | 2 | ; RUN: grep {5 .*Number of machine instrs printed} |
| Chris Lattner | 603572a | 2007-04-11 05:02:57 +0000 | [diff] [blame] | 3 | |
| 4 | ;; Integer absolute value, should produce something at least as good as: |
| Evan Cheng | f06e6c2 | 2011-03-02 01:08:17 +0000 | [diff] [blame] | 5 | ;; movl %edi, %ecx |
| 6 | ;; sarl $31, %ecx |
| 7 | ;; leal (%rdi,%rcx), %eax |
| 8 | ;; xorl %ecx, %eax |
| Chris Lattner | 603572a | 2007-04-11 05:02:57 +0000 | [diff] [blame] | 9 | ;; ret |
| Dale Johannesen | 1d3863f | 2008-03-31 23:20:09 +0000 | [diff] [blame] | 10 | define i32 @test(i32 %a) nounwind { |
| Chris Lattner | 603572a | 2007-04-11 05:02:57 +0000 | [diff] [blame] | 11 | %tmp1neg = sub i32 0, %a |
| 12 | %b = icmp sgt i32 %a, -1 |
| 13 | %abs = select i1 %b, i32 %a, i32 %tmp1neg |
| 14 | ret i32 %abs |
| 15 | } |
| 16 | |