test/CodeGen/Thumb/iabs.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=thumbv6m-none-eabi | FileCheck %s

define i8 @test_i8(i8 %a) nounwind {
; CHECK-LABEL: test_i8:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    sxtb r1, r0
; CHECK-NEXT:    asrs r1, r1, #7
; CHECK-NEXT:    adds r0, r0, r1
; CHECK-NEXT:    eors r0, r1
; CHECK-NEXT:    bx lr
  %tmp1neg = sub i8 0, %a
  %b = icmp sgt i8 %a, -1
  %abs = select i1 %b, i8 %a, i8 %tmp1neg
  ret i8 %abs
}

define i16 @test_i16(i16 %a) nounwind {
; CHECK-LABEL: test_i16:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    sxth r1, r0
; CHECK-NEXT:    asrs r1, r1, #15
; CHECK-NEXT:    adds r0, r0, r1
; CHECK-NEXT:    eors r0, r1
; CHECK-NEXT:    bx lr
  %tmp1neg = sub i16 0, %a
  %b = icmp sgt i16 %a, -1
  %abs = select i1 %b, i16 %a, i16 %tmp1neg
  ret i16 %abs
}

define i32 @test_i32(i32 %a) nounwind {
; CHECK-LABEL: test_i32:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    asrs r1, r0, #31
; CHECK-NEXT:    adds r0, r0, r1
; CHECK-NEXT:    eors r0, r1
; CHECK-NEXT:    bx lr
  %tmp1neg = sub i32 0, %a
  %b = icmp sgt i32 %a, -1
  %abs = select i1 %b, i32 %a, i32 %tmp1neg
  ret i32 %abs
}

define i64 @test_i64(i64 %a) nounwind {
; CHECK-LABEL: test_i64:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    asrs r2, r1, #31
; CHECK-NEXT:    adds r0, r0, r2
; CHECK-NEXT:    adcs r1, r2
; CHECK-NEXT:    eors r0, r2
; CHECK-NEXT:    eors r1, r2
; CHECK-NEXT:    bx lr
  %tmp1neg = sub i64 0, %a
  %b = icmp sgt i64 %a, -1
  %abs = select i1 %b, i64 %a, i64 %tmp1neg
  ret i64 %abs
}