llvm-6502/test/CodeGen/ARM/iabs.ll
Bill Wendling eba564ceac Revert r141365. It was causing MultiSource/Benchmarks/MiBench/consumer-lame to
hang, and possibly SPEC/CINT2006/464_h264ref.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141560 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-10 18:27:30 +00:00

17 lines
446 B
LLVM

; RUN: llc < %s -march=arm -mattr=+v4t | FileCheck %s
;; Integer absolute value, should produce something as good as: ARM:
;; add r3, r0, r0, asr #31
;; eor r0, r3, r0, asr #31
;; bx lr
define i32 @test(i32 %a) {
%tmp1neg = sub i32 0, %a
%b = icmp sgt i32 %a, -1
%abs = select i1 %b, i32 %a, i32 %tmp1neg
ret i32 %abs
; CHECK: add r1, r0, r0, asr #31
; CHECK: eor r0, r1, r0, asr #31
; CHECK: bx lr
}