Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame^] | 1 | ; RUN: llvm-as < %s | llc -march=x86-64 -stats |& \ |
2 | ; RUN: grep {6 .*Number of machine instrs printed} | ||||
3 | |||||
4 | ;; Integer absolute value, should produce something at least as good as: | ||||
5 | ;; movl %edi, %eax | ||||
6 | ;; sarl $31, %eax | ||||
7 | ;; addl %eax, %edi | ||||
8 | ;; xorl %eax, %edi | ||||
9 | ;; movl %edi, %eax | ||||
10 | ;; ret | ||||
11 | define i32 @test(i32 %a) { | ||||
12 | %tmp1neg = sub i32 0, %a | ||||
13 | %b = icmp sgt i32 %a, -1 | ||||
14 | %abs = select i1 %b, i32 %a, i32 %tmp1neg | ||||
15 | ret i32 %abs | ||||
16 | } | ||||
17 |