test/Analysis/CostModel/AArch64/free-widening-casts.ll

; RUN: opt < %s -mtriple=aarch64--linux-gnu -cost-model -analyze | FileCheck %s --check-prefix=COST
; RUN: llc < %s -mtriple=aarch64--linux-gnu | FileCheck %s --check-prefix=CODE

; COST-LABEL: uaddl_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <8 x i8> %a to <8 x i16>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <8 x i8> %b to <8 x i16>
; CODE-LABEL: uaddl_8h
; CODE:       uaddl v0.8h, v0.8b, v1.8b
define <8 x i16> @uaddl_8h(<8 x i8> %a, <8 x i8> %b) {
  %tmp0 = zext <8 x i8> %a to <8 x i16>
  %tmp1 = zext <8 x i8> %b to <8 x i16>
  %tmp2 = add <8 x i16> %tmp0, %tmp1
  ret <8 x i16> %tmp2
}

; COST-LABEL: uaddl_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <4 x i16> %a to <4 x i32>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <4 x i16> %b to <4 x i32>
; CODE-LABEL: uaddl_4s
; CODE:       uaddl v0.4s, v0.4h, v1.4h
define <4 x i32> @uaddl_4s(<4 x i16> %a, <4 x i16> %b) {
  %tmp0 = zext <4 x i16> %a to <4 x i32>
  %tmp1 = zext <4 x i16> %b to <4 x i32>
  %tmp2 = add <4 x i32> %tmp0, %tmp1
  ret <4 x i32> %tmp2
}

; COST-LABEL: uaddl_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <2 x i32> %a to <2 x i64>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <2 x i32> %b to <2 x i64>
; CODE-LABEL: uaddl_2d
; CODE:       uaddl v0.2d, v0.2s, v1.2s
define <2 x i64> @uaddl_2d(<2 x i32> %a, <2 x i32> %b) {
  %tmp0 = zext <2 x i32> %a to <2 x i64>
  %tmp1 = zext <2 x i32> %b to <2 x i64>
  %tmp2 = add <2 x i64> %tmp0, %tmp1
  ret <2 x i64> %tmp2
}

; COST-LABEL: uaddl2_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <16 x i8> %a to <16 x i16>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <16 x i8> %b to <16 x i16>
; CODE-LABEL: uaddl2_8h
; CODE:       uaddl2 v2.8h, v0.16b, v1.16b
; CODE-NEXT:  uaddl v0.8h, v0.8b, v1.8b
define <16 x i16> @uaddl2_8h(<16 x i8> %a, <16 x i8> %b) {
  %tmp0 = zext <16 x i8> %a to <16 x i16>
  %tmp1 = zext <16 x i8> %b to <16 x i16>
  %tmp2 = add <16 x i16> %tmp0, %tmp1
  ret <16 x i16> %tmp2
}

; COST-LABEL: uaddl2_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <8 x i16> %a to <8 x i32>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <8 x i16> %b to <8 x i32>
; CODE-LABEL: uaddl2_4s
; CODE:       uaddl2 v2.4s, v0.8h, v1.8h
; CODE-NEXT:  uaddl v0.4s, v0.4h, v1.4h
define <8 x i32> @uaddl2_4s(<8 x i16> %a, <8 x i16> %b) {
  %tmp0 = zext <8 x i16> %a to <8 x i32>
  %tmp1 = zext <8 x i16> %b to <8 x i32>
  %tmp2 = add <8 x i32> %tmp0, %tmp1
  ret <8 x i32> %tmp2
}

; COST-LABEL: uaddl2_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <4 x i32> %a to <4 x i64>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <4 x i32> %b to <4 x i64>
; CODE-LABEL: uaddl2_2d
; CODE:       uaddl2 v2.2d, v0.4s, v1.4s
; CODE-NEXT:  uaddl v0.2d, v0.2s, v1.2s
define <4 x i64> @uaddl2_2d(<4 x i32> %a, <4 x i32> %b) {
  %tmp0 = zext <4 x i32> %a to <4 x i64>
  %tmp1 = zext <4 x i32> %b to <4 x i64>
  %tmp2 = add <4 x i64> %tmp0, %tmp1
  ret <4 x i64> %tmp2
}

; COST-LABEL: saddl_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <8 x i8> %a to <8 x i16>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <8 x i8> %b to <8 x i16>
; CODE-LABEL: saddl_8h
; CODE:       saddl v0.8h, v0.8b, v1.8b
define <8 x i16> @saddl_8h(<8 x i8> %a, <8 x i8> %b) {
  %tmp0 = sext <8 x i8> %a to <8 x i16>
  %tmp1 = sext <8 x i8> %b to <8 x i16>
  %tmp2 = add <8 x i16> %tmp0, %tmp1
  ret <8 x i16> %tmp2
}

; COST-LABEL: saddl_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <4 x i16> %a to <4 x i32>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <4 x i16> %b to <4 x i32>
; CODE-LABEL: saddl_4s
; CODE:       saddl v0.4s, v0.4h, v1.4h
define <4 x i32> @saddl_4s(<4 x i16> %a, <4 x i16> %b) {
  %tmp0 = sext <4 x i16> %a to <4 x i32>
  %tmp1 = sext <4 x i16> %b to <4 x i32>
  %tmp2 = add <4 x i32> %tmp0, %tmp1
  ret <4 x i32> %tmp2
}

; COST-LABEL: saddl_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <2 x i32> %a to <2 x i64>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <2 x i32> %b to <2 x i64>
; CODE-LABEL: saddl_2d
; CODE:       saddl v0.2d, v0.2s, v1.2s
define <2 x i64> @saddl_2d(<2 x i32> %a, <2 x i32> %b) {
  %tmp0 = sext <2 x i32> %a to <2 x i64>
  %tmp1 = sext <2 x i32> %b to <2 x i64>
  %tmp2 = add <2 x i64> %tmp0, %tmp1
  ret <2 x i64> %tmp2
}

; COST-LABEL: saddl2_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <16 x i8> %a to <16 x i16>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <16 x i8> %b to <16 x i16>
; CODE-LABEL: saddl2_8h
; CODE:       saddl2 v2.8h, v0.16b, v1.16b
; CODE-NEXT:  saddl v0.8h, v0.8b, v1.8b
define <16 x i16> @saddl2_8h(<16 x i8> %a, <16 x i8> %b) {
  %tmp0 = sext <16 x i8> %a to <16 x i16>
  %tmp1 = sext <16 x i8> %b to <16 x i16>
  %tmp2 = add <16 x i16> %tmp0, %tmp1
  ret <16 x i16> %tmp2
}

; COST-LABEL: saddl2_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <8 x i16> %a to <8 x i32>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <8 x i16> %b to <8 x i32>
; CODE-LABEL: saddl2_4s
; CODE:       saddl2 v2.4s, v0.8h, v1.8h
; CODE-NEXT:  saddl v0.4s, v0.4h, v1.4h
define <8 x i32> @saddl2_4s(<8 x i16> %a, <8 x i16> %b) {
  %tmp0 = sext <8 x i16> %a to <8 x i32>
  %tmp1 = sext <8 x i16> %b to <8 x i32>
  %tmp2 = add <8 x i32> %tmp0, %tmp1
  ret <8 x i32> %tmp2
}

; COST-LABEL: saddl2_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <4 x i32> %a to <4 x i64>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <4 x i32> %b to <4 x i64>
; CODE-LABEL: saddl2_2d
; CODE:       saddl2 v2.2d, v0.4s, v1.4s
; CODE-NEXT:  saddl v0.2d, v0.2s, v1.2s
define <4 x i64> @saddl2_2d(<4 x i32> %a, <4 x i32> %b) {
  %tmp0 = sext <4 x i32> %a to <4 x i64>
  %tmp1 = sext <4 x i32> %b to <4 x i64>
  %tmp2 = add <4 x i64> %tmp0, %tmp1
  ret <4 x i64> %tmp2
}

; COST-LABEL: usubl_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <8 x i8> %a to <8 x i16>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <8 x i8> %b to <8 x i16>
; CODE-LABEL: usubl_8h
; CODE:       usubl v0.8h, v0.8b, v1.8b
define <8 x i16> @usubl_8h(<8 x i8> %a, <8 x i8> %b) {
  %tmp0 = zext <8 x i8> %a to <8 x i16>
  %tmp1 = zext <8 x i8> %b to <8 x i16>
  %tmp2 = sub <8 x i16> %tmp0, %tmp1
  ret <8 x i16> %tmp2
}

; COST-LABEL: usubl_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <4 x i16> %a to <4 x i32>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <4 x i16> %b to <4 x i32>
; CODE-LABEL: usubl_4s
; CODE:       usubl v0.4s, v0.4h, v1.4h
define <4 x i32> @usubl_4s(<4 x i16> %a, <4 x i16> %b) {
  %tmp0 = zext <4 x i16> %a to <4 x i32>
  %tmp1 = zext <4 x i16> %b to <4 x i32>
  %tmp2 = sub <4 x i32> %tmp0, %tmp1
  ret <4 x i32> %tmp2
}

; COST-LABEL: usubl_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <2 x i32> %a to <2 x i64>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <2 x i32> %b to <2 x i64>
; CODE-LABEL: usubl_2d
; CODE:       usubl v0.2d, v0.2s, v1.2s
define <2 x i64> @usubl_2d(<2 x i32> %a, <2 x i32> %b) {
  %tmp0 = zext <2 x i32> %a to <2 x i64>
  %tmp1 = zext <2 x i32> %b to <2 x i64>
  %tmp2 = sub <2 x i64> %tmp0, %tmp1
  ret <2 x i64> %tmp2
}

; COST-LABEL: usubl2_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <16 x i8> %a to <16 x i16>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <16 x i8> %b to <16 x i16>
; CODE-LABEL: usubl2_8h
; CODE:       usubl2 v2.8h, v0.16b, v1.16b
; CODE-NEXT:  usubl v0.8h, v0.8b, v1.8b
define <16 x i16> @usubl2_8h(<16 x i8> %a, <16 x i8> %b) {
  %tmp0 = zext <16 x i8> %a to <16 x i16>
  %tmp1 = zext <16 x i8> %b to <16 x i16>
  %tmp2 = sub <16 x i16> %tmp0, %tmp1
  ret <16 x i16> %tmp2
}

; COST-LABEL: usubl2_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <8 x i16> %a to <8 x i32>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <8 x i16> %b to <8 x i32>
; CODE-LABEL: usubl2_4s
; CODE:       usubl2 v2.4s, v0.8h, v1.8h
; CODE-NEXT:  usubl v0.4s, v0.4h, v1.4h
define <8 x i32> @usubl2_4s(<8 x i16> %a, <8 x i16> %b) {
  %tmp0 = zext <8 x i16> %a to <8 x i32>
  %tmp1 = zext <8 x i16> %b to <8 x i32>
  %tmp2 = sub <8 x i32> %tmp0, %tmp1
  ret <8 x i32> %tmp2
}

; COST-LABEL: usubl2_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <4 x i32> %a to <4 x i64>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <4 x i32> %b to <4 x i64>
; CODE-LABEL: usubl2_2d
; CODE:       usubl2 v2.2d, v0.4s, v1.4s
; CODE-NEXT:  usubl v0.2d, v0.2s, v1.2s
define <4 x i64> @usubl2_2d(<4 x i32> %a, <4 x i32> %b) {
  %tmp0 = zext <4 x i32> %a to <4 x i64>
  %tmp1 = zext <4 x i32> %b to <4 x i64>
  %tmp2 = sub <4 x i64> %tmp0, %tmp1
  ret <4 x i64> %tmp2
}

; COST-LABEL: ssubl_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <8 x i8> %a to <8 x i16>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <8 x i8> %b to <8 x i16>
; CODE-LABEL: ssubl_8h
; CODE:       ssubl v0.8h, v0.8b, v1.8b
define <8 x i16> @ssubl_8h(<8 x i8> %a, <8 x i8> %b) {
  %tmp0 = sext <8 x i8> %a to <8 x i16>
  %tmp1 = sext <8 x i8> %b to <8 x i16>
  %tmp2 = sub <8 x i16> %tmp0, %tmp1
  ret <8 x i16> %tmp2
}

; COST-LABEL: ssubl_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <4 x i16> %a to <4 x i32>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <4 x i16> %b to <4 x i32>
; CODE-LABEL: ssubl_4s
; CODE:       ssubl v0.4s, v0.4h, v1.4h
define <4 x i32> @ssubl_4s(<4 x i16> %a, <4 x i16> %b) {
  %tmp0 = sext <4 x i16> %a to <4 x i32>
  %tmp1 = sext <4 x i16> %b to <4 x i32>
  %tmp2 = sub <4 x i32> %tmp0, %tmp1
  ret <4 x i32> %tmp2
}

; COST-LABEL: ssubl_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <2 x i32> %a to <2 x i64>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <2 x i32> %b to <2 x i64>
; CODE-LABEL: ssubl_2d
; CODE:       ssubl v0.2d, v0.2s, v1.2s
define <2 x i64> @ssubl_2d(<2 x i32> %a, <2 x i32> %b) {
  %tmp0 = sext <2 x i32> %a to <2 x i64>
  %tmp1 = sext <2 x i32> %b to <2 x i64>
  %tmp2 = sub <2 x i64> %tmp0, %tmp1
  ret <2 x i64> %tmp2
}

; COST-LABEL: ssubl2_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <16 x i8> %a to <16 x i16>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <16 x i8> %b to <16 x i16>
; CODE-LABEL: ssubl2_8h
; CODE:       ssubl2 v2.8h, v0.16b, v1.16b
; CODE-NEXT:  ssubl v0.8h, v0.8b, v1.8b
define <16 x i16> @ssubl2_8h(<16 x i8> %a, <16 x i8> %b) {
  %tmp0 = sext <16 x i8> %a to <16 x i16>
  %tmp1 = sext <16 x i8> %b to <16 x i16>
  %tmp2 = sub <16 x i16> %tmp0, %tmp1
  ret <16 x i16> %tmp2
}

; COST-LABEL: ssubl2_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <8 x i16> %a to <8 x i32>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <8 x i16> %b to <8 x i32>
; CODE-LABEL: ssubl2_4s
; CODE:       ssubl2 v2.4s, v0.8h, v1.8h
; CODE-NEXT:  ssubl v0.4s, v0.4h, v1.4h
define <8 x i32> @ssubl2_4s(<8 x i16> %a, <8 x i16> %b) {
  %tmp0 = sext <8 x i16> %a to <8 x i32>
  %tmp1 = sext <8 x i16> %b to <8 x i32>
  %tmp2 = sub <8 x i32> %tmp0, %tmp1
  ret <8 x i32> %tmp2
}

; COST-LABEL: ssubl2_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <4 x i32> %a to <4 x i64>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = sext <4 x i32> %b to <4 x i64>
; CODE-LABEL: ssubl2_2d
; CODE:       ssubl2 v2.2d, v0.4s, v1.4s
; CODE-NEXT:  ssubl v0.2d, v0.2s, v1.2s
define <4 x i64> @ssubl2_2d(<4 x i32> %a, <4 x i32> %b) {
  %tmp0 = sext <4 x i32> %a to <4 x i64>
  %tmp1 = sext <4 x i32> %b to <4 x i64>
  %tmp2 = sub <4 x i64> %tmp0, %tmp1
  ret <4 x i64> %tmp2
}

; COST-LABEL: uaddw_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <8 x i8> %a to <8 x i16>
; CODE-LABEL: uaddw_8h
; CODE:       uaddw v0.8h, v1.8h, v0.8b
define <8 x i16> @uaddw_8h(<8 x i8> %a, <8 x i16> %b) {
  %tmp0 = zext <8 x i8> %a to <8 x i16>
  %tmp1 = add <8 x i16> %b, %tmp0
  ret <8 x i16> %tmp1
}

; COST-LABEL: uaddw_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <4 x i16> %a to <4 x i32>
; CODE-LABEL: uaddw_4s
; CODE:       uaddw v0.4s, v1.4s, v0.4h
define <4 x i32> @uaddw_4s(<4 x i16> %a, <4 x i32> %b) {
  %tmp0 = zext <4 x i16> %a to <4 x i32>
  %tmp1 = add <4 x i32> %b, %tmp0
  ret <4 x i32> %tmp1
}

; COST-LABEL: uaddw_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <2 x i32> %a to <2 x i64>
; CODE-LABEL: uaddw_2d
; CODE:       uaddw v0.2d, v1.2d, v0.2s
define <2 x i64> @uaddw_2d(<2 x i32> %a, <2 x i64> %b) {
  %tmp0 = zext <2 x i32> %a to <2 x i64>
  %tmp1 = add <2 x i64> %b, %tmp0
  ret <2 x i64> %tmp1
}

; COST-LABEL: uaddw2_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <16 x i8> %a to <16 x i16>
; CODE-LABEL: uaddw2_8h
; CODE:       uaddw2 v2.8h, v2.8h, v0.16b
; CODE-NEXT:  uaddw v0.8h, v1.8h, v0.8b
define <16 x i16> @uaddw2_8h(<16 x i8> %a, <16 x i16> %b) {
  %tmp0 = zext <16 x i8> %a to <16 x i16>
  %tmp1 = add <16 x i16> %b, %tmp0
  ret <16 x i16> %tmp1
}

; COST-LABEL: uaddw2_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <8 x i16> %a to <8 x i32>
; CODE-LABEL: uaddw2_4s
; CODE:       uaddw2 v2.4s, v2.4s, v0.8h
; CODE-NEXT:  uaddw v0.4s, v1.4s, v0.4h
define <8 x i32> @uaddw2_4s(<8 x i16> %a, <8 x i32> %b) {
  %tmp0 = zext <8 x i16> %a to <8 x i32>
  %tmp1 = add <8 x i32> %b, %tmp0
  ret <8 x i32> %tmp1
}

; COST-LABEL: uaddw2_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <4 x i32> %a to <4 x i64>
; CODE-LABEL: uaddw2_2d
; CODE:       uaddw2 v2.2d, v2.2d, v0.4s
; CODE-NEXT:  uaddw v0.2d, v1.2d, v0.2s
define <4 x i64> @uaddw2_2d(<4 x i32> %a, <4 x i64> %b) {
  %tmp0 = zext <4 x i32> %a to <4 x i64>
  %tmp1 = add <4 x i64> %b, %tmp0
  ret <4 x i64> %tmp1
}

; COST-LABEL: saddw_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <8 x i8> %a to <8 x i16>
; CODE-LABEL: saddw_8h
; CODE:       saddw v0.8h, v1.8h, v0.8b
define <8 x i16> @saddw_8h(<8 x i8> %a, <8 x i16> %b) {
  %tmp0 = sext <8 x i8> %a to <8 x i16>
  %tmp1 = add <8 x i16> %b, %tmp0
  ret <8 x i16> %tmp1
}

; COST-LABEL: saddw_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <4 x i16> %a to <4 x i32>
; CODE-LABEL: saddw_4s
; CODE:       saddw v0.4s, v1.4s, v0.4h
define <4 x i32> @saddw_4s(<4 x i16> %a, <4 x i32> %b) {
  %tmp0 = sext <4 x i16> %a to <4 x i32>
  %tmp1 = add <4 x i32> %b, %tmp0
  ret <4 x i32> %tmp1
}

; COST-LABEL: saddw_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <2 x i32> %a to <2 x i64>
; CODE-LABEL: saddw_2d
; CODE:       saddw v0.2d, v1.2d, v0.2s
define <2 x i64> @saddw_2d(<2 x i32> %a, <2 x i64> %b) {
  %tmp0 = sext <2 x i32> %a to <2 x i64>
  %tmp1 = add <2 x i64> %b, %tmp0
  ret <2 x i64> %tmp1
}

; COST-LABEL: saddw2_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <16 x i8> %a to <16 x i16>
; CODE-LABEL: saddw2_8h
; CODE:       saddw2 v2.8h, v2.8h, v0.16b
; CODE-NEXT:  saddw v0.8h, v1.8h, v0.8b
define <16 x i16> @saddw2_8h(<16 x i8> %a, <16 x i16> %b) {
  %tmp0 = sext <16 x i8> %a to <16 x i16>
  %tmp1 = add <16 x i16> %b, %tmp0
  ret <16 x i16> %tmp1
}

; COST-LABEL: saddw2_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <8 x i16> %a to <8 x i32>
; CODE-LABEL: saddw2_4s
; CODE:       saddw2 v2.4s, v2.4s, v0.8h
; CODE-NEXT:  saddw v0.4s, v1.4s, v0.4h
define <8 x i32> @saddw2_4s(<8 x i16> %a, <8 x i32> %b) {
  %tmp0 = sext <8 x i16> %a to <8 x i32>
  %tmp1 = add <8 x i32> %b, %tmp0
  ret <8 x i32> %tmp1
}

; COST-LABEL: saddw2_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <4 x i32> %a to <4 x i64>
; CODE-LABEL: saddw2_2d
; CODE:       saddw2 v2.2d, v2.2d, v0.4s
; CODE-NEXT:  saddw v0.2d, v1.2d, v0.2s
define <4 x i64> @saddw2_2d(<4 x i32> %a, <4 x i64> %b) {
  %tmp0 = sext <4 x i32> %a to <4 x i64>
  %tmp1 = add <4 x i64> %b, %tmp0
  ret <4 x i64> %tmp1
}

; COST-LABEL: usubw_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <8 x i8> %a to <8 x i16>
; CODE-LABEL: usubw_8h
; CODE:       usubw v0.8h, v1.8h, v0.8b
define <8 x i16> @usubw_8h(<8 x i8> %a, <8 x i16> %b) {
  %tmp0 = zext <8 x i8> %a to <8 x i16>
  %tmp1 = sub <8 x i16> %b, %tmp0
  ret <8 x i16> %tmp1
}

; COST-LABEL: usubw_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <4 x i16> %a to <4 x i32>
; CODE-LABEL: usubw_4s
; CODE:       usubw v0.4s, v1.4s, v0.4h
define <4 x i32> @usubw_4s(<4 x i16> %a, <4 x i32> %b) {
  %tmp0 = zext <4 x i16> %a to <4 x i32>
  %tmp1 = sub <4 x i32> %b, %tmp0
  ret <4 x i32> %tmp1
}

; COST-LABEL: usubw_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <2 x i32> %a to <2 x i64>
; CODE-LABEL: usubw_2d
; CODE:       usubw v0.2d, v1.2d, v0.2s
define <2 x i64> @usubw_2d(<2 x i32> %a, <2 x i64> %b) {
  %tmp0 = zext <2 x i32> %a to <2 x i64>
  %tmp1 = sub <2 x i64> %b, %tmp0
  ret <2 x i64> %tmp1
}

; COST-LABEL: usubw2_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <16 x i8> %a to <16 x i16>
; CODE-LABEL: usubw2_8h
; CODE:       usubw2 v2.8h, v2.8h, v0.16b
; CODE-NEXT:  usubw v0.8h, v1.8h, v0.8b
define <16 x i16> @usubw2_8h(<16 x i8> %a, <16 x i16> %b) {
  %tmp0 = zext <16 x i8> %a to <16 x i16>
  %tmp1 = sub <16 x i16> %b, %tmp0
  ret <16 x i16> %tmp1
}

; COST-LABEL: usubw2_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <8 x i16> %a to <8 x i32>
; CODE-LABEL: usubw2_4s
; CODE:       usubw2 v2.4s, v2.4s, v0.8h
; CODE-NEXT:  usubw v0.4s, v1.4s, v0.4h
define <8 x i32> @usubw2_4s(<8 x i16> %a, <8 x i32> %b) {
  %tmp0 = zext <8 x i16> %a to <8 x i32>
  %tmp1 = sub <8 x i32> %b, %tmp0
  ret <8 x i32> %tmp1
}

; COST-LABEL: usubw2_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = zext <4 x i32> %a to <4 x i64>
; CODE-LABEL: usubw2_2d
; CODE:       usubw2 v2.2d, v2.2d, v0.4s
; CODE-NEXT:  usubw v0.2d, v1.2d, v0.2s
define <4 x i64> @usubw2_2d(<4 x i32> %a, <4 x i64> %b) {
  %tmp0 = zext <4 x i32> %a to <4 x i64>
  %tmp1 = sub <4 x i64> %b, %tmp0
  ret <4 x i64> %tmp1
}

; COST-LABEL: ssubw_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <8 x i8> %a to <8 x i16>
; CODE-LABEL: ssubw_8h
; CODE:       ssubw v0.8h, v1.8h, v0.8b
define <8 x i16> @ssubw_8h(<8 x i8> %a, <8 x i16> %b) {
  %tmp0 = sext <8 x i8> %a to <8 x i16>
  %tmp1 = sub <8 x i16> %b, %tmp0
  ret <8 x i16> %tmp1
}

; COST-LABEL: ssubw_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <4 x i16> %a to <4 x i32>
; CODE-LABEL: ssubw_4s
; CODE:       ssubw v0.4s, v1.4s, v0.4h
define <4 x i32> @ssubw_4s(<4 x i16> %a, <4 x i32> %b) {
  %tmp0 = sext <4 x i16> %a to <4 x i32>
  %tmp1 = sub <4 x i32> %b, %tmp0
  ret <4 x i32> %tmp1
}

; COST-LABEL: ssubw_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <2 x i32> %a to <2 x i64>
; CODE-LABEL: ssubw_2d
; CODE:       ssubw v0.2d, v1.2d, v0.2s
define <2 x i64> @ssubw_2d(<2 x i32> %a, <2 x i64> %b) {
  %tmp0 = sext <2 x i32> %a to <2 x i64>
  %tmp1 = sub <2 x i64> %b, %tmp0
  ret <2 x i64> %tmp1
}

; COST-LABEL: ssubw2_8h
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <16 x i8> %a to <16 x i16>
; CODE-LABEL: ssubw2_8h
; CODE:       ssubw2 v2.8h, v2.8h, v0.16b
; CODE-NEXT:  ssubw v0.8h, v1.8h, v0.8b
define <16 x i16> @ssubw2_8h(<16 x i8> %a, <16 x i16> %b) {
  %tmp0 = sext <16 x i8> %a to <16 x i16>
  %tmp1 = sub <16 x i16> %b, %tmp0
  ret <16 x i16> %tmp1
}

; COST-LABEL: ssubw2_4s
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <8 x i16> %a to <8 x i32>
; CODE-LABEL: ssubw2_4s
; CODE:       ssubw2 v2.4s, v2.4s, v0.8h
; CODE-NEXT:  ssubw v0.4s, v1.4s, v0.4h
define <8 x i32> @ssubw2_4s(<8 x i16> %a, <8 x i32> %b) {
  %tmp0 = sext <8 x i16> %a to <8 x i32>
  %tmp1 = sub <8 x i32> %b, %tmp0
  ret <8 x i32> %tmp1
}

; COST-LABEL: ssubw2_2d
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp0 = sext <4 x i32> %a to <4 x i64>
; CODE-LABEL: ssubw2_2d
; CODE:       ssubw2 v2.2d, v2.2d, v0.4s
; CODE-NEXT:  ssubw v0.2d, v1.2d, v0.2s
define <4 x i64> @ssubw2_2d(<4 x i32> %a, <4 x i64> %b) {
  %tmp0 = sext <4 x i32> %a to <4 x i64>
  %tmp1 = sub <4 x i64> %b, %tmp0
  ret <4 x i64> %tmp1
}

; COST-LABEL: neg_wrong_operand_order
; COST-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %tmp0 = zext <8 x i8> %a to <8 x i16>
define <8 x i16> @neg_wrong_operand_order(<8 x i8> %a, <8 x i16> %b) {
  %tmp0 = zext <8 x i8> %a to <8 x i16>
  %tmp1 = sub <8 x i16> %tmp0, %b
  ret <8 x i16> %tmp1
}

; COST-LABEL: neg_non_widening_op
; COST-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %tmp0 = zext <8 x i8> %a to <8 x i16>
define <8 x i16> @neg_non_widening_op(<8 x i8> %a, <8 x i16> %b) {
  %tmp0 = zext <8 x i8> %a to <8 x i16>
  %tmp1 = udiv <8 x i16> %b, %tmp0
  ret <8 x i16> %tmp1
}

; COST-LABEL: neg_dissimilar_operand_kind_0
; COST-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %tmp0 = sext <8 x i8> %a to <8 x i16>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <8 x i8> %b to <8 x i16>
define <8 x i16> @neg_dissimilar_operand_kind_0(<8 x i8> %a, <8 x i8> %b) {
  %tmp0 = sext <8 x i8> %a to <8 x i16>
  %tmp1 = zext <8 x i8> %b to <8 x i16>
  %tmp2 = add <8 x i16> %tmp0, %tmp1
  ret <8 x i16> %tmp2
}

; COST-LABEL: neg_dissimilar_operand_kind_1
; COST-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %tmp0 = zext <4 x i8> %a to <4 x i32>
; COST-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %tmp1 = zext <4 x i16> %b to <4 x i32>
define <4 x i32> @neg_dissimilar_operand_kind_1(<4 x i8> %a, <4 x i16> %b) {
  %tmp0 = zext <4 x i8> %a to <4 x i32>
  %tmp1 = zext <4 x i16> %b to <4 x i32>
  %tmp2 = add <4 x i32> %tmp0, %tmp1
  ret <4 x i32> %tmp2
}

; COST-LABEL: neg_illegal_vector_type_0
; COST-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %tmp0 = zext <16 x i4> %a to <16 x i8>
define <16 x i8> @neg_illegal_vector_type_0(<16 x i4> %a, <16 x i8> %b) {
  %tmp0 = zext <16 x i4> %a to <16 x i8>
  %tmp1 = sub <16 x i8> %b, %tmp0
  ret <16 x i8> %tmp1
}

; COST-LABEL: neg_llegal_vector_type_1
; COST-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %tmp0 = zext <1 x i16> %a to <1 x i32>
define <1 x i32> @neg_llegal_vector_type_1(<1 x i16> %a, <1 x i32> %b) {
  %tmp0 = zext <1 x i16> %a to <1 x i32>
  %tmp1 = add <1 x i32> %b, %tmp0
  ret <1 x i32> %tmp1
}

; COST-LABEL: neg_llegal_vector_type_2
; COST-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %tmp0 = zext <4 x i16> %a to <4 x i64>
define <4 x i64> @neg_llegal_vector_type_2(<4 x i16> %a, <4 x i64> %b) {
  %tmp0 = zext <4 x i16> %a to <4 x i64>
  %tmp1 = add <4 x i64> %b, %tmp0
  ret <4 x i64> %tmp1
}

; COST-LABEL: neg_llegal_vector_type_3
; COST-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %tmp0 = zext <3 x i34> %a to <3 x i68>
define <3 x i68> @neg_llegal_vector_type_3(<3 x i34> %a, <3 x i68> %b) {
  %tmp0 = zext <3 x i34> %a to <3 x i68>
  %tmp1 = add <3 x i68> %b, %tmp0
  ret <3 x i68> %tmp1
}