test/CodeGen/ARM/vdup.ll - llvm-project/llvm - Git at Google

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc < %s -mtriple=arm-eabi -float-abi=soft -mattr=+neon -verify-machineinstrs | FileCheck %s

 define <8 x i8> @v_dup8(i8 %A) nounwind {
 ; CHECK-LABEL: v_dup8:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.8 d16, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <8 x i8> zeroinitializer, i8 %A, i32 0
 	%tmp2 = insertelement <8 x i8> %tmp1, i8 %A, i32 1
 	%tmp3 = insertelement <8 x i8> %tmp2, i8 %A, i32 2
 	%tmp4 = insertelement <8 x i8> %tmp3, i8 %A, i32 3
 	%tmp5 = insertelement <8 x i8> %tmp4, i8 %A, i32 4
 	%tmp6 = insertelement <8 x i8> %tmp5, i8 %A, i32 5
 	%tmp7 = insertelement <8 x i8> %tmp6, i8 %A, i32 6
 	%tmp8 = insertelement <8 x i8> %tmp7, i8 %A, i32 7
 	ret <8 x i8> %tmp8
 }

 define <4 x i16> @v_dup16(i16 %A) nounwind {
 ; CHECK-LABEL: v_dup16:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.16 d16, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <4 x i16> zeroinitializer, i16 %A, i32 0
 	%tmp2 = insertelement <4 x i16> %tmp1, i16 %A, i32 1
 	%tmp3 = insertelement <4 x i16> %tmp2, i16 %A, i32 2
 	%tmp4 = insertelement <4 x i16> %tmp3, i16 %A, i32 3
 	ret <4 x i16> %tmp4
 }

 define <2 x i32> @v_dup32(i32 %A) nounwind {
 ; CHECK-LABEL: v_dup32:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.32 d16, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <2 x i32> zeroinitializer, i32 %A, i32 0
 	%tmp2 = insertelement <2 x i32> %tmp1, i32 %A, i32 1
 	ret <2 x i32> %tmp2
 }

 define <2 x float> @v_dupfloat(float %A) nounwind {
 ; CHECK-LABEL: v_dupfloat:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.32 d16, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <2 x float> zeroinitializer, float %A, i32 0
 	%tmp2 = insertelement <2 x float> %tmp1, float %A, i32 1
 	ret <2 x float> %tmp2
 }

 define <16 x i8> @v_dupQ8(i8 %A) nounwind {
 ; CHECK-LABEL: v_dupQ8:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.8 q8, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    vmov r2, r3, d17
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <16 x i8> zeroinitializer, i8 %A, i32 0
 	%tmp2 = insertelement <16 x i8> %tmp1, i8 %A, i32 1
 	%tmp3 = insertelement <16 x i8> %tmp2, i8 %A, i32 2
 	%tmp4 = insertelement <16 x i8> %tmp3, i8 %A, i32 3
 	%tmp5 = insertelement <16 x i8> %tmp4, i8 %A, i32 4
 	%tmp6 = insertelement <16 x i8> %tmp5, i8 %A, i32 5
 	%tmp7 = insertelement <16 x i8> %tmp6, i8 %A, i32 6
 	%tmp8 = insertelement <16 x i8> %tmp7, i8 %A, i32 7
 	%tmp9 = insertelement <16 x i8> %tmp8, i8 %A, i32 8
 	%tmp10 = insertelement <16 x i8> %tmp9, i8 %A, i32 9
 	%tmp11 = insertelement <16 x i8> %tmp10, i8 %A, i32 10
 	%tmp12 = insertelement <16 x i8> %tmp11, i8 %A, i32 11
 	%tmp13 = insertelement <16 x i8> %tmp12, i8 %A, i32 12
 	%tmp14 = insertelement <16 x i8> %tmp13, i8 %A, i32 13
 	%tmp15 = insertelement <16 x i8> %tmp14, i8 %A, i32 14
 	%tmp16 = insertelement <16 x i8> %tmp15, i8 %A, i32 15
 	ret <16 x i8> %tmp16
 }

 define <8 x i16> @v_dupQ16(i16 %A) nounwind {
 ; CHECK-LABEL: v_dupQ16:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.16 q8, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    vmov r2, r3, d17
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <8 x i16> zeroinitializer, i16 %A, i32 0
 	%tmp2 = insertelement <8 x i16> %tmp1, i16 %A, i32 1
 	%tmp3 = insertelement <8 x i16> %tmp2, i16 %A, i32 2
 	%tmp4 = insertelement <8 x i16> %tmp3, i16 %A, i32 3
 	%tmp5 = insertelement <8 x i16> %tmp4, i16 %A, i32 4
 	%tmp6 = insertelement <8 x i16> %tmp5, i16 %A, i32 5
 	%tmp7 = insertelement <8 x i16> %tmp6, i16 %A, i32 6
 	%tmp8 = insertelement <8 x i16> %tmp7, i16 %A, i32 7
 	ret <8 x i16> %tmp8
 }

 define <4 x i32> @v_dupQ32(i32 %A) nounwind {
 ; CHECK-LABEL: v_dupQ32:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    mov r1, r0
 ; CHECK-NEXT:    mov r2, r0
 ; CHECK-NEXT:    mov r3, r0
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <4 x i32> zeroinitializer, i32 %A, i32 0
 	%tmp2 = insertelement <4 x i32> %tmp1, i32 %A, i32 1
 	%tmp3 = insertelement <4 x i32> %tmp2, i32 %A, i32 2
 	%tmp4 = insertelement <4 x i32> %tmp3, i32 %A, i32 3
 	ret <4 x i32> %tmp4
 }

 define <4 x float> @v_dupQfloat(float %A) nounwind {
 ; CHECK-LABEL: v_dupQfloat:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.32 q8, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    vmov r2, r3, d17
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <4 x float> zeroinitializer, float %A, i32 0
 	%tmp2 = insertelement <4 x float> %tmp1, float %A, i32 1
 	%tmp3 = insertelement <4 x float> %tmp2, float %A, i32 2
 	%tmp4 = insertelement <4 x float> %tmp3, float %A, i32 3
 	ret <4 x float> %tmp4
 }

 ; Check to make sure it works with shuffles, too.

 define <8 x i8> @v_shuffledup8(i8 %A) nounwind {
 ; CHECK-LABEL: v_shuffledup8:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.8 d16, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <8 x i8> undef, i8 %A, i32 0
 	%tmp2 = shufflevector <8 x i8> %tmp1, <8 x i8> undef, <8 x i32> zeroinitializer
 	ret <8 x i8> %tmp2
 }

 define <4 x i16> @v_shuffledup16(i16 %A) nounwind {
 ; CHECK-LABEL: v_shuffledup16:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.16 d16, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <4 x i16> undef, i16 %A, i32 0
 	%tmp2 = shufflevector <4 x i16> %tmp1, <4 x i16> undef, <4 x i32> zeroinitializer
 	ret <4 x i16> %tmp2
 }

 define <2 x i32> @v_shuffledup32(i32 %A) nounwind {
 ; CHECK-LABEL: v_shuffledup32:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.32 d16, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <2 x i32> undef, i32 %A, i32 0
 	%tmp2 = shufflevector <2 x i32> %tmp1, <2 x i32> undef, <2 x i32> zeroinitializer
 	ret <2 x i32> %tmp2
 }

 define <2 x float> @v_shuffledupfloat(float %A) nounwind {
 ; CHECK-LABEL: v_shuffledupfloat:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.32 d16, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <2 x float> undef, float %A, i32 0
 	%tmp2 = shufflevector <2 x float> %tmp1, <2 x float> undef, <2 x i32> zeroinitializer
 	ret <2 x float> %tmp2
 }

 define <16 x i8> @v_shuffledupQ8(i8 %A) nounwind {
 ; CHECK-LABEL: v_shuffledupQ8:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.8 q8, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    vmov r2, r3, d17
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <16 x i8> undef, i8 %A, i32 0
 	%tmp2 = shufflevector <16 x i8> %tmp1, <16 x i8> undef, <16 x i32> zeroinitializer
 	ret <16 x i8> %tmp2
 }

 define <8 x i16> @v_shuffledupQ16(i16 %A) nounwind {
 ; CHECK-LABEL: v_shuffledupQ16:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.16 q8, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    vmov r2, r3, d17
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <8 x i16> undef, i16 %A, i32 0
 	%tmp2 = shufflevector <8 x i16> %tmp1, <8 x i16> undef, <8 x i32> zeroinitializer
 	ret <8 x i16> %tmp2
 }

 define <4 x i32> @v_shuffledupQ32(i32 %A) nounwind {
 ; CHECK-LABEL: v_shuffledupQ32:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.32 q8, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    vmov r2, r3, d17
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <4 x i32> undef, i32 %A, i32 0
 	%tmp2 = shufflevector <4 x i32> %tmp1, <4 x i32> undef, <4 x i32> zeroinitializer
 	ret <4 x i32> %tmp2
 }

 define <4 x float> @v_shuffledupQfloat(float %A) nounwind {
 ; CHECK-LABEL: v_shuffledupQfloat:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.32 q8, r0
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    vmov r2, r3, d17
 ; CHECK-NEXT:    mov pc, lr
 	%tmp1 = insertelement <4 x float> undef, float %A, i32 0
 	%tmp2 = shufflevector <4 x float> %tmp1, <4 x float> undef, <4 x i32> zeroinitializer
 	ret <4 x float> %tmp2
 }

 define arm_aapcs_vfpcc <8 x i8> @vduplane8(<8 x i8> %A) nounwind {
 ; CHECK-LABEL: vduplane8:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.8 d0, d0[1]
 ; CHECK-NEXT:    mov pc, lr
 	%tmp2 = shufflevector <8 x i8> %A, <8 x i8> undef, <8 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
 	ret <8 x i8> %tmp2
 }

 define arm_aapcs_vfpcc <4 x i16> @vduplane16(<4 x i16> %A) nounwind {
 ; CHECK-LABEL: vduplane16:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.16 d0, d0[1]
 ; CHECK-NEXT:    mov pc, lr
 	%tmp2 = shufflevector <4 x i16> %A, <4 x i16> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
 	ret <4 x i16> %tmp2
 }

 define arm_aapcs_vfpcc <2 x i32> @vduplane32(<2 x i32> %A) nounwind {
 ; CHECK-LABEL: vduplane32:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.32 d0, d0[1]
 ; CHECK-NEXT:    mov pc, lr
 	%tmp2 = shufflevector <2 x i32> %A, <2 x i32> undef, <2 x i32> < i32 1, i32 1 >
 	ret <2 x i32> %tmp2
 }

 define arm_aapcs_vfpcc <2 x float> @vduplanefloat(<2 x float> %A) nounwind {
 ; CHECK-LABEL: vduplanefloat:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.32 d0, d0[1]
 ; CHECK-NEXT:    mov pc, lr
 	%tmp2 = shufflevector <2 x float> %A, <2 x float> undef, <2 x i32> < i32 1, i32 1 >
 	ret <2 x float> %tmp2
 }

 define arm_aapcs_vfpcc <16 x i8> @vduplaneQ8(<8 x i8> %A) nounwind {
 ; CHECK-LABEL: vduplaneQ8:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    @ kill: def $d0 killed $d0 def $q0
 ; CHECK-NEXT:    vdup.8 q0, d0[1]
 ; CHECK-NEXT:    mov pc, lr
 	%tmp2 = shufflevector <8 x i8> %A, <8 x i8> undef, <16 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
 	ret <16 x i8> %tmp2
 }

 define arm_aapcs_vfpcc <8 x i16> @vduplaneQ16(<4 x i16> %A) nounwind {
 ; CHECK-LABEL: vduplaneQ16:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    @ kill: def $d0 killed $d0 def $q0
 ; CHECK-NEXT:    vdup.16 q0, d0[1]
 ; CHECK-NEXT:    mov pc, lr
 	%tmp2 = shufflevector <4 x i16> %A, <4 x i16> undef, <8 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
 	ret <8 x i16> %tmp2
 }

 define arm_aapcs_vfpcc <4 x i32> @vduplaneQ32(<2 x i32> %A) nounwind {
 ; CHECK-LABEL: vduplaneQ32:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    @ kill: def $d0 killed $d0 def $q0
 ; CHECK-NEXT:    vdup.32 q0, d0[1]
 ; CHECK-NEXT:    mov pc, lr
 	%tmp2 = shufflevector <2 x i32> %A, <2 x i32> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
 	ret <4 x i32> %tmp2
 }

 define arm_aapcs_vfpcc <4 x float> @vduplaneQfloat(<2 x float> %A) nounwind {
 ; CHECK-LABEL: vduplaneQfloat:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    @ kill: def $d0 killed $d0 def $q0
 ; CHECK-NEXT:    vdup.32 q0, d0[1]
 ; CHECK-NEXT:    mov pc, lr
 	%tmp2 = shufflevector <2 x float> %A, <2 x float> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
 	ret <4 x float> %tmp2
 }

 define <2 x i64> @foo(<2 x i64> %arg0_int64x1_t) nounwind readnone {
 ; CHECK-LABEL: foo:
 ; CHECK:       @ %bb.0: @ %entry
 ; CHECK-NEXT:    mov r0, r2
 ; CHECK-NEXT:    mov r1, r3
 ; CHECK-NEXT:    mov pc, lr
 entry:
   %0 = shufflevector <2 x i64> %arg0_int64x1_t, <2 x i64> undef, <2 x i32> <i32 1, i32 1>
   ret <2 x i64> %0
 }

 define <2 x i64> @bar(<2 x i64> %arg0_int64x1_t) nounwind readnone {
 ; CHECK-LABEL: bar:
 ; CHECK:       @ %bb.0: @ %entry
 ; CHECK-NEXT:    mov r2, r0
 ; CHECK-NEXT:    mov r3, r1
 ; CHECK-NEXT:    mov pc, lr
 entry:
   %0 = shufflevector <2 x i64> %arg0_int64x1_t, <2 x i64> undef, <2 x i32> <i32 0, i32 0>
   ret <2 x i64> %0
 }

 define <2 x double> @baz(<2 x double> %arg0_int64x1_t) nounwind readnone {
 ; CHECK-LABEL: baz:
 ; CHECK:       @ %bb.0: @ %entry
 ; CHECK-NEXT:    mov r0, r2
 ; CHECK-NEXT:    mov r1, r3
 ; CHECK-NEXT:    mov pc, lr
 entry:
   %0 = shufflevector <2 x double> %arg0_int64x1_t, <2 x double> undef, <2 x i32> <i32 1, i32 1>
   ret <2 x double> %0
 }

 define <2 x double> @qux(<2 x double> %arg0_int64x1_t) nounwind readnone {
 ; CHECK-LABEL: qux:
 ; CHECK:       @ %bb.0: @ %entry
 ; CHECK-NEXT:    mov r2, r0
 ; CHECK-NEXT:    mov r3, r1
 ; CHECK-NEXT:    mov pc, lr
 entry:
   %0 = shufflevector <2 x double> %arg0_int64x1_t, <2 x double> undef, <2 x i32> <i32 0, i32 0>
   ret <2 x double> %0
 }

 ; Radar 7373643
 define void @redundantVdup(ptr %ptr) nounwind {
 ; CHECK-LABEL: redundantVdup:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vmov.i8 d16, #0x80
 ; CHECK-NEXT:    vstr d16, [r0]
 ; CHECK-NEXT:    mov pc, lr
   %1 = insertelement <8 x i8> undef, i8 -128, i32 0
   %2 = shufflevector <8 x i8> %1, <8 x i8> undef, <8 x i32> zeroinitializer
   store <8 x i8> %2, ptr %ptr, align 8
   ret void
 }

 define <4 x i32> @tdupi(i32 %x, i32 %y) {
 ; CHECK-LABEL: tdupi:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    mov r3, r1
 ; CHECK-NEXT:    mov r1, r0
 ; CHECK-NEXT:    mov r2, r0
 ; CHECK-NEXT:    mov pc, lr
   %1 = insertelement <4 x i32> undef, i32 %x, i32 0
   %2 = insertelement <4 x i32> %1, i32 %x, i32 1
   %3 = insertelement <4 x i32> %2, i32 %x, i32 2
   %4 = insertelement <4 x i32> %3, i32 %y, i32 3
   ret <4 x i32> %4
 }

 define <4 x float> @tdupf(float %x, float %y) {
 ; CHECK-LABEL: tdupf:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vdup.32 q0, r0
 ; CHECK-NEXT:    vmov s3, r1
 ; CHECK-NEXT:    vmov r0, r1, d0
 ; CHECK-NEXT:    vmov r2, r3, d1
 ; CHECK-NEXT:    mov pc, lr
   %1 = insertelement <4 x float> undef, float %x, i32 0
   %2 = insertelement <4 x float> %1, float %x, i32 1
   %3 = insertelement <4 x float> %2, float %x, i32 2
   %4 = insertelement <4 x float> %3, float %y, i32 3
   ret <4 x float> %4
 }

 ; This test checks that when splatting an element from a vector into another,
 ; the value isn't moved out to GPRs first.
 define <4 x i32> @tduplane(<4 x i32> %invec) {
 ; CHECK-LABEL: tduplane:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vmov d16, r0, r1
 ; CHECK-NEXT:    mov r3, #255
 ; CHECK-NEXT:    vmov.32 r0, d16[1]
 ; CHECK-NEXT:    mov r1, r0
 ; CHECK-NEXT:    mov r2, r0
 ; CHECK-NEXT:    mov pc, lr
   %in = extractelement <4 x i32> %invec, i32 1
   %1 = insertelement <4 x i32> undef, i32 %in, i32 0
   %2 = insertelement <4 x i32> %1, i32 %in, i32 1
   %3 = insertelement <4 x i32> %2, i32 %in, i32 2
   %4 = insertelement <4 x i32> %3, i32 255, i32 3
   ret <4 x i32> %4
 }

 define <2 x float> @check_f32(<4 x float> %v) nounwind {
 ; CHECK-LABEL: check_f32:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vmov d16, r2, r3
 ; CHECK-NEXT:    vdup.32 d16, d16[1]
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
   %x = extractelement <4 x float> %v, i32 3
   %1 = insertelement  <2 x float> undef, float %x, i32 0
   %2 = insertelement  <2 x float> %1, float %x, i32 1
   ret <2 x float> %2
 }

 define <2 x i32> @check_i32(<4 x i32> %v) nounwind {
 ; CHECK-LABEL: check_i32:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vmov d16, r2, r3
 ; CHECK-NEXT:    vdup.32 d16, d16[1]
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
   %x = extractelement <4 x i32> %v, i32 3
   %1 = insertelement  <2 x i32> undef, i32 %x, i32 0
   %2 = insertelement  <2 x i32> %1, i32 %x, i32 1
   ret <2 x i32> %2
 }

 define <4 x i16> @check_i16(<8 x i16> %v) nounwind {
 ; CHECK-LABEL: check_i16:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vmov d16, r0, r1
 ; CHECK-NEXT:    vdup.16 d16, d16[3]
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
   %x = extractelement <8 x i16> %v, i32 3
   %1 = insertelement  <4 x i16> undef, i16 %x, i32 0
   %2 = insertelement  <4 x i16> %1, i16 %x, i32 1
   ret <4 x i16> %2
 }

 define <8 x i8> @check_i8(<16 x i8> %v) nounwind {
 ; CHECK-LABEL: check_i8:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    vmov d16, r0, r1
 ; CHECK-NEXT:    vdup.8 d16, d16[3]
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
   %x = extractelement <16 x i8> %v, i32 3
   %1 = insertelement  <8  x i8> undef, i8 %x, i32 0
   %2 = insertelement  <8  x i8> %1, i8 %x, i32 1
   ret <8 x i8> %2
 }

 ; Check that an SPR splat produces a vdup.

 define <2 x float> @check_spr_splat2(<2 x float> %p, i16 %q) {
 ; CHECK-LABEL: check_spr_splat2:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    lsl r2, r2, #16
 ; CHECK-NEXT:    vmov d16, r0, r1
 ; CHECK-NEXT:    asr r2, r2, #16
 ; CHECK-NEXT:    vmov s0, r2
 ; CHECK-NEXT:    vcvt.f32.s32 s0, s0
 ; CHECK-NEXT:    vdup.32 d17, d0[0]
 ; CHECK-NEXT:    vsub.f32 d16, d17, d16
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov pc, lr
   %conv = sitofp i16 %q to float
   %splat.splatinsert = insertelement <2 x float> undef, float %conv, i32 0
   %splat.splat = shufflevector <2 x float> %splat.splatinsert, <2 x float> undef, <2 x i32> zeroinitializer
   %sub = fsub <2 x float> %splat.splat, %p
   ret <2 x float> %sub
 }

 define <4 x float> @check_spr_splat4(<4 x float> %p, i16 %q) {
 ; CHECK-LABEL: check_spr_splat4:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    ldrsh r12, [sp]
 ; CHECK-NEXT:    vmov d17, r2, r3
 ; CHECK-NEXT:    vmov d16, r0, r1
 ; CHECK-NEXT:    vmov s0, r12
 ; CHECK-NEXT:    vcvt.f32.s32 s0, s0
 ; CHECK-NEXT:    vdup.32 q9, d0[0]
 ; CHECK-NEXT:    vsub.f32 q8, q9, q8
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    vmov r2, r3, d17
 ; CHECK-NEXT:    mov pc, lr
   %conv = sitofp i16 %q to float
   %splat.splatinsert = insertelement <4 x float> undef, float %conv, i32 0
   %splat.splat = shufflevector <4 x float> %splat.splatinsert, <4 x float> undef, <4 x i32> zeroinitializer
   %sub = fsub <4 x float> %splat.splat, %p
   ret <4 x float> %sub
 }
 ; Same codegen as above test; scalar is splatted using vld1, so shuffle index is irrelevant.
 define <4 x float> @check_spr_splat4_lane1(<4 x float> %p, i16 %q) {
 ; CHECK-LABEL: check_spr_splat4_lane1:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    ldrsh r12, [sp]
 ; CHECK-NEXT:    vmov d17, r2, r3
 ; CHECK-NEXT:    vmov d16, r0, r1
 ; CHECK-NEXT:    vmov s0, r12
 ; CHECK-NEXT:    vcvt.f32.s32 s0, s0
 ; CHECK-NEXT:    vdup.32 q9, d0[0]
 ; CHECK-NEXT:    vsub.f32 q8, q9, q8
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    vmov r2, r3, d17
 ; CHECK-NEXT:    mov pc, lr
   %conv = sitofp i16 %q to float
   %splat.splatinsert = insertelement <4 x float> undef, float %conv, i32 1
   %splat.splat = shufflevector <4 x float> %splat.splatinsert, <4 x float> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
   %sub = fsub <4 x float> %splat.splat, %p
   ret <4 x float> %sub
 }

 ; Also make sure we don't barf on variable-index extractelts, where we almost
 ; could have generated a vdup.

 define <8 x i8> @check_i8_varidx(<16 x i8> %v, i32 %idx) {
 ; CHECK-LABEL: check_i8_varidx:
 ; CHECK:       @ %bb.0:
 ; CHECK-NEXT:    .save {r11}
 ; CHECK-NEXT:    push {r11}
 ; CHECK-NEXT:    .setfp r11, sp
 ; CHECK-NEXT:    mov r11, sp
 ; CHECK-NEXT:    .pad #28
 ; CHECK-NEXT:    sub sp, sp, #28
 ; CHECK-NEXT:    bic sp, sp, #15
 ; CHECK-NEXT:    ldr r12, [r11, #4]
 ; CHECK-NEXT:    vmov d17, r2, r3
 ; CHECK-NEXT:    vmov d16, r0, r1
 ; CHECK-NEXT:    mov r1, sp
 ; CHECK-NEXT:    and r0, r12, #15
 ; CHECK-NEXT:    vst1.64 {d16, d17}, [r1:128], r0
 ; CHECK-NEXT:    vld1.8 {d16[]}, [r1]
 ; CHECK-NEXT:    vmov r0, r1, d16
 ; CHECK-NEXT:    mov sp, r11
 ; CHECK-NEXT:    pop {r11}
 ; CHECK-NEXT:    mov pc, lr
   %x = extractelement <16 x i8> %v, i32 %idx
   %1 = insertelement  <8 x i8> undef, i8 %x, i32 0
   %2 = insertelement  <8 x i8> %1, i8 %x, i32 1
   ret <8 x i8> %2
 }
	; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
	; RUN: llc < %s -mtriple=arm-eabi -float-abi=soft -mattr=+neon -verify-machineinstrs \| FileCheck %s

	define <8 x i8> @v_dup8(i8 %A) nounwind {
	; CHECK-LABEL: v_dup8:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.8 d16, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <8 x i8> zeroinitializer, i8 %A, i32 0
	%tmp2 = insertelement <8 x i8> %tmp1, i8 %A, i32 1
	%tmp3 = insertelement <8 x i8> %tmp2, i8 %A, i32 2
	%tmp4 = insertelement <8 x i8> %tmp3, i8 %A, i32 3
	%tmp5 = insertelement <8 x i8> %tmp4, i8 %A, i32 4
	%tmp6 = insertelement <8 x i8> %tmp5, i8 %A, i32 5
	%tmp7 = insertelement <8 x i8> %tmp6, i8 %A, i32 6
	%tmp8 = insertelement <8 x i8> %tmp7, i8 %A, i32 7
	ret <8 x i8> %tmp8
	}

	define <4 x i16> @v_dup16(i16 %A) nounwind {
	; CHECK-LABEL: v_dup16:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.16 d16, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <4 x i16> zeroinitializer, i16 %A, i32 0
	%tmp2 = insertelement <4 x i16> %tmp1, i16 %A, i32 1
	%tmp3 = insertelement <4 x i16> %tmp2, i16 %A, i32 2
	%tmp4 = insertelement <4 x i16> %tmp3, i16 %A, i32 3
	ret <4 x i16> %tmp4
	}

	define <2 x i32> @v_dup32(i32 %A) nounwind {
	; CHECK-LABEL: v_dup32:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.32 d16, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <2 x i32> zeroinitializer, i32 %A, i32 0
	%tmp2 = insertelement <2 x i32> %tmp1, i32 %A, i32 1
	ret <2 x i32> %tmp2
	}

	define <2 x float> @v_dupfloat(float %A) nounwind {
	; CHECK-LABEL: v_dupfloat:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.32 d16, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <2 x float> zeroinitializer, float %A, i32 0
	%tmp2 = insertelement <2 x float> %tmp1, float %A, i32 1
	ret <2 x float> %tmp2
	}

	define <16 x i8> @v_dupQ8(i8 %A) nounwind {
	; CHECK-LABEL: v_dupQ8:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.8 q8, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: vmov r2, r3, d17
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <16 x i8> zeroinitializer, i8 %A, i32 0
	%tmp2 = insertelement <16 x i8> %tmp1, i8 %A, i32 1
	%tmp3 = insertelement <16 x i8> %tmp2, i8 %A, i32 2
	%tmp4 = insertelement <16 x i8> %tmp3, i8 %A, i32 3
	%tmp5 = insertelement <16 x i8> %tmp4, i8 %A, i32 4
	%tmp6 = insertelement <16 x i8> %tmp5, i8 %A, i32 5
	%tmp7 = insertelement <16 x i8> %tmp6, i8 %A, i32 6
	%tmp8 = insertelement <16 x i8> %tmp7, i8 %A, i32 7
	%tmp9 = insertelement <16 x i8> %tmp8, i8 %A, i32 8
	%tmp10 = insertelement <16 x i8> %tmp9, i8 %A, i32 9
	%tmp11 = insertelement <16 x i8> %tmp10, i8 %A, i32 10
	%tmp12 = insertelement <16 x i8> %tmp11, i8 %A, i32 11
	%tmp13 = insertelement <16 x i8> %tmp12, i8 %A, i32 12
	%tmp14 = insertelement <16 x i8> %tmp13, i8 %A, i32 13
	%tmp15 = insertelement <16 x i8> %tmp14, i8 %A, i32 14
	%tmp16 = insertelement <16 x i8> %tmp15, i8 %A, i32 15
	ret <16 x i8> %tmp16
	}

	define <8 x i16> @v_dupQ16(i16 %A) nounwind {
	; CHECK-LABEL: v_dupQ16:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.16 q8, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: vmov r2, r3, d17
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <8 x i16> zeroinitializer, i16 %A, i32 0
	%tmp2 = insertelement <8 x i16> %tmp1, i16 %A, i32 1
	%tmp3 = insertelement <8 x i16> %tmp2, i16 %A, i32 2
	%tmp4 = insertelement <8 x i16> %tmp3, i16 %A, i32 3
	%tmp5 = insertelement <8 x i16> %tmp4, i16 %A, i32 4
	%tmp6 = insertelement <8 x i16> %tmp5, i16 %A, i32 5
	%tmp7 = insertelement <8 x i16> %tmp6, i16 %A, i32 6
	%tmp8 = insertelement <8 x i16> %tmp7, i16 %A, i32 7
	ret <8 x i16> %tmp8
	}

	define <4 x i32> @v_dupQ32(i32 %A) nounwind {
	; CHECK-LABEL: v_dupQ32:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: mov r1, r0
	; CHECK-NEXT: mov r2, r0
	; CHECK-NEXT: mov r3, r0
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <4 x i32> zeroinitializer, i32 %A, i32 0
	%tmp2 = insertelement <4 x i32> %tmp1, i32 %A, i32 1
	%tmp3 = insertelement <4 x i32> %tmp2, i32 %A, i32 2
	%tmp4 = insertelement <4 x i32> %tmp3, i32 %A, i32 3
	ret <4 x i32> %tmp4
	}

	define <4 x float> @v_dupQfloat(float %A) nounwind {
	; CHECK-LABEL: v_dupQfloat:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.32 q8, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: vmov r2, r3, d17
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <4 x float> zeroinitializer, float %A, i32 0
	%tmp2 = insertelement <4 x float> %tmp1, float %A, i32 1
	%tmp3 = insertelement <4 x float> %tmp2, float %A, i32 2
	%tmp4 = insertelement <4 x float> %tmp3, float %A, i32 3
	ret <4 x float> %tmp4
	}

	; Check to make sure it works with shuffles, too.

	define <8 x i8> @v_shuffledup8(i8 %A) nounwind {
	; CHECK-LABEL: v_shuffledup8:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.8 d16, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <8 x i8> undef, i8 %A, i32 0
	%tmp2 = shufflevector <8 x i8> %tmp1, <8 x i8> undef, <8 x i32> zeroinitializer
	ret <8 x i8> %tmp2
	}

	define <4 x i16> @v_shuffledup16(i16 %A) nounwind {
	; CHECK-LABEL: v_shuffledup16:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.16 d16, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <4 x i16> undef, i16 %A, i32 0
	%tmp2 = shufflevector <4 x i16> %tmp1, <4 x i16> undef, <4 x i32> zeroinitializer
	ret <4 x i16> %tmp2
	}

	define <2 x i32> @v_shuffledup32(i32 %A) nounwind {
	; CHECK-LABEL: v_shuffledup32:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.32 d16, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <2 x i32> undef, i32 %A, i32 0
	%tmp2 = shufflevector <2 x i32> %tmp1, <2 x i32> undef, <2 x i32> zeroinitializer
	ret <2 x i32> %tmp2
	}

	define <2 x float> @v_shuffledupfloat(float %A) nounwind {
	; CHECK-LABEL: v_shuffledupfloat:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.32 d16, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <2 x float> undef, float %A, i32 0
	%tmp2 = shufflevector <2 x float> %tmp1, <2 x float> undef, <2 x i32> zeroinitializer
	ret <2 x float> %tmp2
	}

	define <16 x i8> @v_shuffledupQ8(i8 %A) nounwind {
	; CHECK-LABEL: v_shuffledupQ8:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.8 q8, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: vmov r2, r3, d17
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <16 x i8> undef, i8 %A, i32 0
	%tmp2 = shufflevector <16 x i8> %tmp1, <16 x i8> undef, <16 x i32> zeroinitializer
	ret <16 x i8> %tmp2
	}

	define <8 x i16> @v_shuffledupQ16(i16 %A) nounwind {
	; CHECK-LABEL: v_shuffledupQ16:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.16 q8, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: vmov r2, r3, d17
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <8 x i16> undef, i16 %A, i32 0
	%tmp2 = shufflevector <8 x i16> %tmp1, <8 x i16> undef, <8 x i32> zeroinitializer
	ret <8 x i16> %tmp2
	}

	define <4 x i32> @v_shuffledupQ32(i32 %A) nounwind {
	; CHECK-LABEL: v_shuffledupQ32:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.32 q8, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: vmov r2, r3, d17
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <4 x i32> undef, i32 %A, i32 0
	%tmp2 = shufflevector <4 x i32> %tmp1, <4 x i32> undef, <4 x i32> zeroinitializer
	ret <4 x i32> %tmp2
	}

	define <4 x float> @v_shuffledupQfloat(float %A) nounwind {
	; CHECK-LABEL: v_shuffledupQfloat:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.32 q8, r0
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: vmov r2, r3, d17
	; CHECK-NEXT: mov pc, lr
	%tmp1 = insertelement <4 x float> undef, float %A, i32 0
	%tmp2 = shufflevector <4 x float> %tmp1, <4 x float> undef, <4 x i32> zeroinitializer
	ret <4 x float> %tmp2
	}

	define arm_aapcs_vfpcc <8 x i8> @vduplane8(<8 x i8> %A) nounwind {
	; CHECK-LABEL: vduplane8:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.8 d0, d0[1]
	; CHECK-NEXT: mov pc, lr
	%tmp2 = shufflevector <8 x i8> %A, <8 x i8> undef, <8 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
	ret <8 x i8> %tmp2
	}

	define arm_aapcs_vfpcc <4 x i16> @vduplane16(<4 x i16> %A) nounwind {
	; CHECK-LABEL: vduplane16:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.16 d0, d0[1]
	; CHECK-NEXT: mov pc, lr
	%tmp2 = shufflevector <4 x i16> %A, <4 x i16> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
	ret <4 x i16> %tmp2
	}

	define arm_aapcs_vfpcc <2 x i32> @vduplane32(<2 x i32> %A) nounwind {
	; CHECK-LABEL: vduplane32:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.32 d0, d0[1]
	; CHECK-NEXT: mov pc, lr
	%tmp2 = shufflevector <2 x i32> %A, <2 x i32> undef, <2 x i32> < i32 1, i32 1 >
	ret <2 x i32> %tmp2
	}

	define arm_aapcs_vfpcc <2 x float> @vduplanefloat(<2 x float> %A) nounwind {
	; CHECK-LABEL: vduplanefloat:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.32 d0, d0[1]
	; CHECK-NEXT: mov pc, lr
	%tmp2 = shufflevector <2 x float> %A, <2 x float> undef, <2 x i32> < i32 1, i32 1 >
	ret <2 x float> %tmp2
	}

	define arm_aapcs_vfpcc <16 x i8> @vduplaneQ8(<8 x i8> %A) nounwind {
	; CHECK-LABEL: vduplaneQ8:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: @ kill: def $d0 killed $d0 def $q0
	; CHECK-NEXT: vdup.8 q0, d0[1]
	; CHECK-NEXT: mov pc, lr
	%tmp2 = shufflevector <8 x i8> %A, <8 x i8> undef, <16 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
	ret <16 x i8> %tmp2
	}

	define arm_aapcs_vfpcc <8 x i16> @vduplaneQ16(<4 x i16> %A) nounwind {
	; CHECK-LABEL: vduplaneQ16:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: @ kill: def $d0 killed $d0 def $q0
	; CHECK-NEXT: vdup.16 q0, d0[1]
	; CHECK-NEXT: mov pc, lr
	%tmp2 = shufflevector <4 x i16> %A, <4 x i16> undef, <8 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
	ret <8 x i16> %tmp2
	}

	define arm_aapcs_vfpcc <4 x i32> @vduplaneQ32(<2 x i32> %A) nounwind {
	; CHECK-LABEL: vduplaneQ32:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: @ kill: def $d0 killed $d0 def $q0
	; CHECK-NEXT: vdup.32 q0, d0[1]
	; CHECK-NEXT: mov pc, lr
	%tmp2 = shufflevector <2 x i32> %A, <2 x i32> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
	ret <4 x i32> %tmp2
	}

	define arm_aapcs_vfpcc <4 x float> @vduplaneQfloat(<2 x float> %A) nounwind {
	; CHECK-LABEL: vduplaneQfloat:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: @ kill: def $d0 killed $d0 def $q0
	; CHECK-NEXT: vdup.32 q0, d0[1]
	; CHECK-NEXT: mov pc, lr
	%tmp2 = shufflevector <2 x float> %A, <2 x float> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
	ret <4 x float> %tmp2
	}

	define <2 x i64> @foo(<2 x i64> %arg0_int64x1_t) nounwind readnone {
	; CHECK-LABEL: foo:
	; CHECK: @ %bb.0: @ %entry
	; CHECK-NEXT: mov r0, r2
	; CHECK-NEXT: mov r1, r3
	; CHECK-NEXT: mov pc, lr
	entry:
	%0 = shufflevector <2 x i64> %arg0_int64x1_t, <2 x i64> undef, <2 x i32> <i32 1, i32 1>
	ret <2 x i64> %0
	}

	define <2 x i64> @bar(<2 x i64> %arg0_int64x1_t) nounwind readnone {
	; CHECK-LABEL: bar:
	; CHECK: @ %bb.0: @ %entry
	; CHECK-NEXT: mov r2, r0
	; CHECK-NEXT: mov r3, r1
	; CHECK-NEXT: mov pc, lr
	entry:
	%0 = shufflevector <2 x i64> %arg0_int64x1_t, <2 x i64> undef, <2 x i32> <i32 0, i32 0>
	ret <2 x i64> %0
	}

	define <2 x double> @baz(<2 x double> %arg0_int64x1_t) nounwind readnone {
	; CHECK-LABEL: baz:
	; CHECK: @ %bb.0: @ %entry
	; CHECK-NEXT: mov r0, r2
	; CHECK-NEXT: mov r1, r3
	; CHECK-NEXT: mov pc, lr
	entry:
	%0 = shufflevector <2 x double> %arg0_int64x1_t, <2 x double> undef, <2 x i32> <i32 1, i32 1>
	ret <2 x double> %0
	}

	define <2 x double> @qux(<2 x double> %arg0_int64x1_t) nounwind readnone {
	; CHECK-LABEL: qux:
	; CHECK: @ %bb.0: @ %entry
	; CHECK-NEXT: mov r2, r0
	; CHECK-NEXT: mov r3, r1
	; CHECK-NEXT: mov pc, lr
	entry:
	%0 = shufflevector <2 x double> %arg0_int64x1_t, <2 x double> undef, <2 x i32> <i32 0, i32 0>
	ret <2 x double> %0
	}

	; Radar 7373643
	define void @redundantVdup(ptr %ptr) nounwind {
	; CHECK-LABEL: redundantVdup:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vmov.i8 d16, #0x80
	; CHECK-NEXT: vstr d16, [r0]
	; CHECK-NEXT: mov pc, lr
	%1 = insertelement <8 x i8> undef, i8 -128, i32 0
	%2 = shufflevector <8 x i8> %1, <8 x i8> undef, <8 x i32> zeroinitializer
	store <8 x i8> %2, ptr %ptr, align 8
	ret void
	}

	define <4 x i32> @tdupi(i32 %x, i32 %y) {
	; CHECK-LABEL: tdupi:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: mov r3, r1
	; CHECK-NEXT: mov r1, r0
	; CHECK-NEXT: mov r2, r0
	; CHECK-NEXT: mov pc, lr
	%1 = insertelement <4 x i32> undef, i32 %x, i32 0
	%2 = insertelement <4 x i32> %1, i32 %x, i32 1
	%3 = insertelement <4 x i32> %2, i32 %x, i32 2
	%4 = insertelement <4 x i32> %3, i32 %y, i32 3
	ret <4 x i32> %4
	}

	define <4 x float> @tdupf(float %x, float %y) {
	; CHECK-LABEL: tdupf:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vdup.32 q0, r0
	; CHECK-NEXT: vmov s3, r1
	; CHECK-NEXT: vmov r0, r1, d0
	; CHECK-NEXT: vmov r2, r3, d1
	; CHECK-NEXT: mov pc, lr
	%1 = insertelement <4 x float> undef, float %x, i32 0
	%2 = insertelement <4 x float> %1, float %x, i32 1
	%3 = insertelement <4 x float> %2, float %x, i32 2
	%4 = insertelement <4 x float> %3, float %y, i32 3
	ret <4 x float> %4
	}

	; This test checks that when splatting an element from a vector into another,
	; the value isn't moved out to GPRs first.
	define <4 x i32> @tduplane(<4 x i32> %invec) {
	; CHECK-LABEL: tduplane:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vmov d16, r0, r1
	; CHECK-NEXT: mov r3, #255
	; CHECK-NEXT: vmov.32 r0, d16[1]
	; CHECK-NEXT: mov r1, r0
	; CHECK-NEXT: mov r2, r0
	; CHECK-NEXT: mov pc, lr
	%in = extractelement <4 x i32> %invec, i32 1
	%1 = insertelement <4 x i32> undef, i32 %in, i32 0
	%2 = insertelement <4 x i32> %1, i32 %in, i32 1
	%3 = insertelement <4 x i32> %2, i32 %in, i32 2
	%4 = insertelement <4 x i32> %3, i32 255, i32 3
	ret <4 x i32> %4
	}

	define <2 x float> @check_f32(<4 x float> %v) nounwind {
	; CHECK-LABEL: check_f32:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vmov d16, r2, r3
	; CHECK-NEXT: vdup.32 d16, d16[1]
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%x = extractelement <4 x float> %v, i32 3
	%1 = insertelement <2 x float> undef, float %x, i32 0
	%2 = insertelement <2 x float> %1, float %x, i32 1
	ret <2 x float> %2
	}

	define <2 x i32> @check_i32(<4 x i32> %v) nounwind {
	; CHECK-LABEL: check_i32:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vmov d16, r2, r3
	; CHECK-NEXT: vdup.32 d16, d16[1]
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%x = extractelement <4 x i32> %v, i32 3
	%1 = insertelement <2 x i32> undef, i32 %x, i32 0
	%2 = insertelement <2 x i32> %1, i32 %x, i32 1
	ret <2 x i32> %2
	}

	define <4 x i16> @check_i16(<8 x i16> %v) nounwind {
	; CHECK-LABEL: check_i16:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vmov d16, r0, r1
	; CHECK-NEXT: vdup.16 d16, d16[3]
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%x = extractelement <8 x i16> %v, i32 3
	%1 = insertelement <4 x i16> undef, i16 %x, i32 0
	%2 = insertelement <4 x i16> %1, i16 %x, i32 1
	ret <4 x i16> %2
	}

	define <8 x i8> @check_i8(<16 x i8> %v) nounwind {
	; CHECK-LABEL: check_i8:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: vmov d16, r0, r1
	; CHECK-NEXT: vdup.8 d16, d16[3]
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%x = extractelement <16 x i8> %v, i32 3
	%1 = insertelement <8 x i8> undef, i8 %x, i32 0
	%2 = insertelement <8 x i8> %1, i8 %x, i32 1
	ret <8 x i8> %2
	}

	; Check that an SPR splat produces a vdup.

	define <2 x float> @check_spr_splat2(<2 x float> %p, i16 %q) {
	; CHECK-LABEL: check_spr_splat2:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: lsl r2, r2, #16
	; CHECK-NEXT: vmov d16, r0, r1
	; CHECK-NEXT: asr r2, r2, #16
	; CHECK-NEXT: vmov s0, r2
	; CHECK-NEXT: vcvt.f32.s32 s0, s0
	; CHECK-NEXT: vdup.32 d17, d0[0]
	; CHECK-NEXT: vsub.f32 d16, d17, d16
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov pc, lr
	%conv = sitofp i16 %q to float
	%splat.splatinsert = insertelement <2 x float> undef, float %conv, i32 0
	%splat.splat = shufflevector <2 x float> %splat.splatinsert, <2 x float> undef, <2 x i32> zeroinitializer
	%sub = fsub <2 x float> %splat.splat, %p
	ret <2 x float> %sub
	}

	define <4 x float> @check_spr_splat4(<4 x float> %p, i16 %q) {
	; CHECK-LABEL: check_spr_splat4:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: ldrsh r12, [sp]
	; CHECK-NEXT: vmov d17, r2, r3
	; CHECK-NEXT: vmov d16, r0, r1
	; CHECK-NEXT: vmov s0, r12
	; CHECK-NEXT: vcvt.f32.s32 s0, s0
	; CHECK-NEXT: vdup.32 q9, d0[0]
	; CHECK-NEXT: vsub.f32 q8, q9, q8
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: vmov r2, r3, d17
	; CHECK-NEXT: mov pc, lr
	%conv = sitofp i16 %q to float
	%splat.splatinsert = insertelement <4 x float> undef, float %conv, i32 0
	%splat.splat = shufflevector <4 x float> %splat.splatinsert, <4 x float> undef, <4 x i32> zeroinitializer
	%sub = fsub <4 x float> %splat.splat, %p
	ret <4 x float> %sub
	}
	; Same codegen as above test; scalar is splatted using vld1, so shuffle index is irrelevant.
	define <4 x float> @check_spr_splat4_lane1(<4 x float> %p, i16 %q) {
	; CHECK-LABEL: check_spr_splat4_lane1:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: ldrsh r12, [sp]
	; CHECK-NEXT: vmov d17, r2, r3
	; CHECK-NEXT: vmov d16, r0, r1
	; CHECK-NEXT: vmov s0, r12
	; CHECK-NEXT: vcvt.f32.s32 s0, s0
	; CHECK-NEXT: vdup.32 q9, d0[0]
	; CHECK-NEXT: vsub.f32 q8, q9, q8
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: vmov r2, r3, d17
	; CHECK-NEXT: mov pc, lr
	%conv = sitofp i16 %q to float
	%splat.splatinsert = insertelement <4 x float> undef, float %conv, i32 1
	%splat.splat = shufflevector <4 x float> %splat.splatinsert, <4 x float> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
	%sub = fsub <4 x float> %splat.splat, %p
	ret <4 x float> %sub
	}

	; Also make sure we don't barf on variable-index extractelts, where we almost
	; could have generated a vdup.

	define <8 x i8> @check_i8_varidx(<16 x i8> %v, i32 %idx) {
	; CHECK-LABEL: check_i8_varidx:
	; CHECK: @ %bb.0:
	; CHECK-NEXT: .save {r11}
	; CHECK-NEXT: push {r11}
	; CHECK-NEXT: .setfp r11, sp
	; CHECK-NEXT: mov r11, sp
	; CHECK-NEXT: .pad #28
	; CHECK-NEXT: sub sp, sp, #28
	; CHECK-NEXT: bic sp, sp, #15
	; CHECK-NEXT: ldr r12, [r11, #4]
	; CHECK-NEXT: vmov d17, r2, r3
	; CHECK-NEXT: vmov d16, r0, r1
	; CHECK-NEXT: mov r1, sp
	; CHECK-NEXT: and r0, r12, #15
	; CHECK-NEXT: vst1.64 {d16, d17}, [r1:128], r0
	; CHECK-NEXT: vld1.8 {d16[]}, [r1]
	; CHECK-NEXT: vmov r0, r1, d16
	; CHECK-NEXT: mov sp, r11
	; CHECK-NEXT: pop {r11}
	; CHECK-NEXT: mov pc, lr
	%x = extractelement <16 x i8> %v, i32 %idx
	%1 = insertelement <8 x i8> undef, i8 %x, i32 0
	%2 = insertelement <8 x i8> %1, i8 %x, i32 1
	ret <8 x i8> %2
	}