llvm/test/CodeGen/AArch64/sve-asrd.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc -mattr=+sve -combiner-disabled < %s | FileCheck %s

target triple = "aarch64-unknown-linux-gnu"

; Ensure we don't try to represent sdiv-by-one using ARSD.
define <16 x i16> @sdiv_by_one_v16i16(<16 x i16> %a) vscale_range(2,2) {
; CHECK-LABEL: sdiv_by_one_v16i16:
; CHECK:       // %bb.0:
; CHECK-NEXT:    mov z2.h, #1 // =0x1
; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
; CHECK-NEXT:    ptrue p0.s
; CHECK-NEXT:    sunpklo z1.s, z1.h
; CHECK-NEXT:    sunpklo z0.s, z0.h
; CHECK-NEXT:    sunpklo z2.s, z2.h
; CHECK-NEXT:    sdiv z1.s, p0/m, z1.s, z2.s
; CHECK-NEXT:    sdiv z0.s, p0/m, z0.s, z2.s
; CHECK-NEXT:    ptrue p0.h, vl8
; CHECK-NEXT:    uzp1 z1.h, z1.h, z1.h
; CHECK-NEXT:    uzp1 z0.h, z0.h, z0.h
; CHECK-NEXT:    splice z0.h, p0, z0.h, z1.h
; CHECK-NEXT:    movprfx z1, z0
; CHECK-NEXT:    ext z1.b, z1.b, z0.b, #16
; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
; CHECK-NEXT:    // kill: def $q1 killed $q1 killed $z1
; CHECK-NEXT:    ret
  %res = sdiv <16 x i16> %a, splat(i16 1)
  ret <16 x i16> %res
}

; Ensure we don't try to represent sdiv-by-one using ARSD.
define <vscale x 8 x i16> @sdiv_by_one_nxv8i16(<vscale x 8 x i16> %a) {
; CHECK-LABEL: sdiv_by_one_nxv8i16:
; CHECK:       // %bb.0:
; CHECK-NEXT:    mov z1.h, #1 // =0x1
; CHECK-NEXT:    sunpkhi z2.s, z0.h
; CHECK-NEXT:    sunpklo z0.s, z0.h
; CHECK-NEXT:    ptrue p0.s
; CHECK-NEXT:    sunpkhi z3.s, z1.h
; CHECK-NEXT:    sunpklo z1.s, z1.h
; CHECK-NEXT:    sdiv z2.s, p0/m, z2.s, z3.s
; CHECK-NEXT:    sdiv z0.s, p0/m, z0.s, z1.s
; CHECK-NEXT:    uzp1 z0.h, z0.h, z2.h
; CHECK-NEXT:    ret
  %res = sdiv <vscale x 8 x i16> %a, splat(i16 1)
  ret <vscale x 8 x i16> %res
}