2008-04-15 01:56:54 +08:00
|
|
|
; RUN: llvm-as < %s | llc -march=x86-64 -stats |& \
|
2007-04-16 23:15:52 +08:00
|
|
|
; RUN: grep {6 .*Number of machine instrs printed}
|
2007-04-11 13:02:57 +08:00
|
|
|
|
|
|
|
;; Integer absolute value, should produce something at least as good as:
|
|
|
|
;; movl %edi, %eax
|
|
|
|
;; sarl $31, %eax
|
|
|
|
;; addl %eax, %edi
|
|
|
|
;; xorl %eax, %edi
|
|
|
|
;; movl %edi, %eax
|
|
|
|
;; ret
|
2008-04-01 07:20:09 +08:00
|
|
|
define i32 @test(i32 %a) nounwind {
|
2007-04-11 13:02:57 +08:00
|
|
|
%tmp1neg = sub i32 0, %a
|
|
|
|
%b = icmp sgt i32 %a, -1
|
|
|
|
%abs = select i1 %b, i32 %a, i32 %tmp1neg
|
|
|
|
ret i32 %abs
|
|
|
|
}
|
|
|
|
|