neon-partial-reduce-dot-product.ll | Explore in Territory

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mtriple aarch64 -mattr=+neon,+dotprod < %s | FileCheck %s --check-prefixes=CHECK,CHECK-DOT,CHECK-NOI8MM
; RUN: llc -mtriple aarch64 -mattr=+neon < %s | FileCheck %s --check-prefixes=CHECK,CHECK-NOI8MM,CHECK-NODOT
; RUN: llc -mtriple aarch64 -mattr=+neon,+dotprod,+i8mm < %s | FileCheck %s --check-prefixes=CHECK,CHECK-DOT,CHECK-I8MM

define <4 x i32> @udot(<4 x i32> %acc, <16 x i8> %u, <16 x i8> %s) {
; CHECK-DOT-LABEL: udot:
; CHECK-DOT:       // %bb.0:
; CHECK-DOT-NEXT:    udot v0.4s, v2.16b, v1.16b
; CHECK-DOT-NEXT:    ret
;
; CHECK-NODOT-LABEL: udot:
; CHECK-NODOT:       // %bb.0:
; CHECK-NODOT-NEXT:    umull v3.8h, v2.8b, v1.8b
; CHECK-NODOT-NEXT:    umull2 v1.8h, v2.16b, v1.16b
; CHECK-NODOT-NEXT:    ushll v2.4s, v1.4h, #0
; CHECK-NODOT-NEXT:    uaddw v0.4s, v0.4s, v3.4h
; CHECK-NODOT-NEXT:    uaddw2 v2.4s, v2.4s, v3.8h
; CHECK-NODOT-NEXT:    uaddw2 v0.4s, v0.4s, v1.8h
; CHECK-NODOT-NEXT:    add v0.4s, v2.4s, v0.4s
; CHECK-NODOT-NEXT:    ret
  %u.wide = zext <16 x i8> %u to <16 x i32>
  %s.wide = zext <16 x i8> %s to <16 x i32>
  %mult = mul nuw nsw <16 x i32> %s.wide, %u.wide
  %partial.reduce = tail call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> %acc, <16 x i32> %mult)
  ret <4 x i32> %partial.reduce
}

define <2 x i32> @udot_narrow(<2 x i32> %acc, <8 x i8> %u, <8 x i8> %s) {
; CHECK-DOT-LABEL: udot_narrow:
; CHECK-DOT:       // %bb.0:
; CHECK-DOT-NEXT:    udot v0.2s, v2.8b, v1.8b
; CHECK-DOT-NEXT:    ret
;
; CHECK-NODOT-LABEL: udot_narrow:
; CHECK-NODOT:       // %bb.0:
; CHECK-NODOT-NEXT:    umull v1.8h, v2.8b, v1.8b
; CHECK-NODOT-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-NODOT-NEXT:    ushll v2.4s, v1.4h, #0
; CHECK-NODOT-NEXT:    ushll2 v3.4s, v1.8h, #0
; CHECK-NODOT-NEXT:    ext v4.16b, v1.16b, v1.16b, #8
; CHECK-NODOT-NEXT:    uaddw v0.4s, v0.4s, v1.4h
; CHECK-NODOT-NEXT:    ext v3.16b, v3.16b, v3.16b, #8
; CHECK-NODOT-NEXT:    ext v2.16b, v2.16b, v2.16b, #8
; CHECK-NODOT-NEXT:    add v0.2s, v3.2s, v0.2s
; CHECK-NODOT-NEXT:    uaddw v1.4s, v2.4s, v4.4h
; CHECK-NODOT-NEXT:    add v0.2s, v1.2s, v0.2s
; CHECK-NODOT-NEXT:    ret
  %u.wide = zext <8 x i8> %u to <8 x i32>
  %s.wide = zext <8 x i8> %s to <8 x i32>
  %mult = mul nuw nsw <8 x i32> %s.wide, %u.wide
  %partial.reduce = tail call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<2 x i32> %acc, <8 x i32> %mult)
  ret <2 x i32> %partial.reduce
}

define <4 x i32> @sdot(<4 x i32> %acc, <16 x i8> %u, <16 x i8> %s) {
; CHECK-DOT-LABEL: sdot:
; CHECK-DOT:       // %bb.0:
; CHECK-DOT-NEXT:    sdot v0.4s, v2.16b, v1.16b
; CHECK-DOT-NEXT:    ret
;
; CHECK-NODOT-LABEL: sdot:
; CHECK-NODOT:       // %bb.0:
; CHECK-NODOT-NEXT:    smull v3.8h, v2.8b, v1.8b
; CHECK-NODOT-NEXT:    smull2 v1.8h, v2.16b, v1.16b
; CHECK-NODOT-NEXT:    sshll v2.4s, v1.4h, #0
; CHECK-NODOT-NEXT:    saddw v0.4s, v0.4s, v3.4h
; CHECK-NODOT-NEXT:    saddw2 v2.4s, v2.4s, v3.8h
; CHECK-NODOT-NEXT:    saddw2 v0.4s, v0.4s, v1.8h
; CHECK-NODOT-NEXT:    add v0.4s, v2.4s, v0.4s
; CHECK-NODOT-NEXT:    ret
  %u.wide = sext <16 x i8> %u to <16 x i32>
  %s.wide = sext <16 x i8> %s to <16 x i32>
  %mult = mul nuw nsw <16 x i32> %s.wide, %u.wide
  %partial.reduce = tail call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> %acc, <16 x i32> %mult)
  ret <4 x i32> %partial.reduce
}

define <2 x i32> @sdot_narrow(<2 x i32> %acc, <8 x i8> %u, <8 x i8> %s) {
; CHECK-DOT-LABEL: sdot_narrow:
; CHECK-DOT:       // %bb.0:
; CHECK-DOT-NEXT:    sdot v0.2s, v2.8b, v1.8b
; CHECK-DOT-NEXT:    ret
;
; CHECK-NODOT-LABEL: sdot_narrow:
; CHECK-NODOT:       // %bb.0:
; CHECK-NODOT-NEXT:    smull v1.8h, v2.8b, v1.8b
; CHECK-NODOT-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-NODOT-NEXT:    sshll v2.4s, v1.4h, #0
; CHECK-NODOT-NEXT:    sshll2 v3.4s, v1.8h, #0
; CHECK-NODOT-NEXT:    ext v4.16b, v1.16b, v1.16b, #8
; CHECK-NODOT-NEXT:    saddw v0.4s, v0.4s, v1.4h
; CHECK-NODOT-NEXT:    ext v3.16b, v3.16b, v3.16b, #8
; CHECK-NODOT-NEXT:    ext v2.16b, v2.16b, v2.16b, #8
; CHECK-NODOT-NEXT:    add v0.2s, v3.2s, v0.2s
; CHECK-NODOT-NEXT:    saddw v1.4s, v2.4s, v4.4h
; CHECK-NODOT-NEXT:    add v0.2s, v1.2s, v0.2s
; CHECK-NODOT-NEXT:    ret
  %u.wide = sext <8 x i8> %u to <8 x i32>
  %s.wide = sext <8 x i8> %s to <8 x i32>
  %mult = mul nuw nsw <8 x i32> %s.wide, %u.wide
  %partial.reduce = tail call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<2 x i32> %acc, <8 x i32> %mult)
  ret <2 x i32> %partial.reduce
}

define <4 x i32> @usdot(<4 x i32> %acc, <16 x i8> %u, <16 x i8> %s) {
; CHECK-NOI8MM-LABEL: usdot:
; CHECK-NOI8MM:       // %bb.0:
; CHECK-NOI8MM-NEXT:    ushll v3.8h, v1.8b, #0
; CHECK-NOI8MM-NEXT:    ushll2 v1.8h, v1.16b, #0
; CHECK-NOI8MM-NEXT:    sshll v4.8h, v2.8b, #0
; CHECK-NOI8MM-NEXT:    sshll2 v2.8h, v2.16b, #0
; CHECK-NOI8MM-NEXT:    smlal v0.4s, v4.4h, v3.4h
; CHECK-NOI8MM-NEXT:    smull v5.4s, v2.4h, v1.4h
; CHECK-NOI8MM-NEXT:    smlal2 v0.4s, v2.8h, v1.8h
; CHECK-NOI8MM-NEXT:    smlal2 v5.4s, v4.8h, v3.8h
; CHECK-NOI8MM-NEXT:    add v0.4s, v5.4s, v0.4s
; CHECK-NOI8MM-NEXT:    ret
;
; CHECK-I8MM-LABEL: usdot:
; CHECK-I8MM:       // %bb.0:
; CHECK-I8MM-NEXT:    usdot v0.4s, v1.16b, v2.16b
; CHECK-I8MM-NEXT:    ret
  %u.wide = zext <16 x i8> %u to <16 x i32>
  %s.wide = sext <16 x i8> %s to <16 x i32>
  %mult = mul nuw nsw <16 x i32> %s.wide, %u.wide
  %partial.reduce = tail call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> %acc, <16 x i32> %mult)
  ret <4 x i32> %partial.reduce
}

define <2 x i32> @usdot_narrow(<2 x i32> %acc, <8 x i8> %u, <8 x i8> %s) #0{
; CHECK-NOI8MM-LABEL: usdot_narrow:
; CHECK-NOI8MM:       // %bb.0:
; CHECK-NOI8MM-NEXT:    ushll v1.8h, v1.8b, #0
; CHECK-NOI8MM-NEXT:    sshll v2.8h, v2.8b, #0
; CHECK-NOI8MM-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-NOI8MM-NEXT:    smull v3.4s, v2.4h, v1.4h
; CHECK-NOI8MM-NEXT:    smull2 v4.4s, v2.8h, v1.8h
; CHECK-NOI8MM-NEXT:    ext v5.16b, v1.16b, v1.16b, #8
; CHECK-NOI8MM-NEXT:    ext v6.16b, v2.16b, v2.16b, #8
; CHECK-NOI8MM-NEXT:    smlal v0.4s, v2.4h, v1.4h
; CHECK-NOI8MM-NEXT:    ext v3.16b, v3.16b, v3.16b, #8
; CHECK-NOI8MM-NEXT:    ext v1.16b, v4.16b, v4.16b, #8
; CHECK-NOI8MM-NEXT:    smlal v3.4s, v6.4h, v5.4h
; CHECK-NOI8MM-NEXT:    add v0.2s, v1.2s, v0.2s
; CHECK-NOI8MM-NEXT:    add v0.2s, v3.2s, v0.2s
; CHECK-NOI8MM-NEXT:    ret
;
; CHECK-I8MM-LABEL: usdot_narrow:
; CHECK-I8MM:       // %bb.0:
; CHECK-I8MM-NEXT:    usdot v0.2s, v1.8b, v2.8b
; CHECK-I8MM-NEXT:    ret
  %u.wide = zext <8 x i8> %u to <8 x i32>
  %s.wide = sext <8 x i8> %s to <8 x i32>
  %mult = mul nuw nsw <8 x i32> %s.wide, %u.wide
  %partial.reduce = tail call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<2 x i32> %acc, <8 x i32> %mult)
  ret <2 x i32> %partial.reduce
}

define <4 x i32> @sudot(<4 x i32> %acc, <16 x i8> %u, <16 x i8> %s) #0{
; CHECK-NOI8MM-LABEL: sudot:
; CHECK-NOI8MM:       // %bb.0:
; CHECK-NOI8MM-NEXT:    sshll v3.8h, v1.8b, #0
; CHECK-NOI8MM-NEXT:    sshll2 v1.8h, v1.16b, #0
; CHECK-NOI8MM-NEXT:    ushll v4.8h, v2.8b, #0
; CHECK-NOI8MM-NEXT:    ushll2 v2.8h, v2.16b, #0
; CHECK-NOI8MM-NEXT:    smlal v0.4s, v4.4h, v3.4h
; CHECK-NOI8MM-NEXT:    smull v5.4s, v2.4h, v1.4h
; CHECK-NOI8MM-NEXT:    smlal2 v0.4s, v2.8h, v1.8h
; CHECK-NOI8MM-NEXT:    smlal2 v5.4s, v4.8h, v3.8h
; CHECK-NOI8MM-NEXT:    add v0.4s, v5.4s, v0.4s
; CHECK-NOI8MM-NEXT:    ret
;
; CHECK-I8MM-LABEL: sudot:
; CHECK-I8MM:       // %bb.0:
; CHECK-I8MM-NEXT:    usdot v0.4s, v2.16b, v1.16b
; CHECK-I8MM-NEXT:    ret
  %u.wide = sext <16 x i8> %u to <16 x i32>
  %s.wide = zext <16 x i8> %s to <16 x i32>
  %mult = mul nuw nsw <16 x i32> %s.wide, %u.wide
  %partial.reduce = tail call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> %acc, <16 x i32> %mult)
  ret <4 x i32> %partial.reduce
}

define <2 x i32> @sudot_narrow(<2 x i32> %acc, <8 x i8> %u, <8 x i8> %s) #0{
; CHECK-NOI8MM-LABEL: sudot_narrow:
; CHECK-NOI8MM:       // %bb.0:
; CHECK-NOI8MM-NEXT:    sshll v1.8h, v1.8b, #0
; CHECK-NOI8MM-NEXT:    ushll v2.8h, v2.8b, #0
; CHECK-NOI8MM-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-NOI8MM-NEXT:    smull v3.4s, v2.4h, v1.4h
; CHECK-NOI8MM-NEXT:    smull2 v4.4s, v2.8h, v1.8h
; CHECK-NOI8MM-NEXT:    ext v5.16b, v1.16b, v1.16b, #8
; CHECK-NOI8MM-NEXT:    ext v6.16b, v2.16b, v2.16b, #8
; CHECK-NOI8MM-NEXT:    smlal v0.4s, v2.4h, v1.4h
; CHECK-NOI8MM-NEXT:    ext v3.16b, v3.16b, v3.16b, #8
; CHECK-NOI8MM-NEXT:    ext v1.16b, v4.16b, v4.16b, #8
; CHECK-NOI8MM-NEXT:    smlal v3.4s, v6.4h, v5.4h
; CHECK-NOI8MM-NEXT:    add v0.2s, v1.2s, v0.2s
; CHECK-NOI8MM-NEXT:    add v0.2s, v3.2s, v0.2s
; CHECK-NOI8MM-NEXT:    ret
;
; CHECK-I8MM-LABEL: sudot_narrow:
; CHECK-I8MM:       // %bb.0:
; CHECK-I8MM-NEXT:    usdot v0.2s, v2.8b, v1.8b
; CHECK-I8MM-NEXT:    ret
  %u.wide = sext <8 x i8> %u to <8 x i32>
  %s.wide = zext <8 x i8> %s to <8 x i32>
  %mult = mul nuw nsw <8 x i32> %s.wide, %u.wide
  %partial.reduce = tail call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<2 x i32> %acc, <8 x i32> %mult)
  ret <2 x i32> %partial.reduce
}

define <4 x i64> @udot_8to64(<4 x i64> %acc, <16 x i8> %a, <16 x i8> %b) {
; CHECK-DOT-LABEL: udot_8to64:
; CHECK-DOT:       // %bb.0: // %entry
; CHECK-DOT-NEXT:    movi v4.2d, #0000000000000000
; CHECK-DOT-NEXT:    udot v4.4s, v2.16b, v3.16b
; CHECK-DOT-NEXT:    saddw2 v1.2d, v1.2d, v4.4s
; CHECK-DOT-NEXT:    saddw v0.2d, v0.2d, v4.2s
; CHECK-DOT-NEXT:    ret
;
; CHECK-NODOT-LABEL: udot_8to64:
; CHECK-NODOT:       // %bb.0: // %entry
; CHECK-NODOT-NEXT:    umull v4.8h, v2.8b, v3.8b
; CHECK-NODOT-NEXT:    umull2 v2.8h, v2.16b, v3.16b
; CHECK-NODOT-NEXT:    ushll v3.4s, v4.4h, #0
; CHECK-NODOT-NEXT:    ushll v5.4s, v2.4h, #0
; CHECK-NODOT-NEXT:    ushll2 v4.4s, v4.8h, #0
; CHECK-NODOT-NEXT:    ushll2 v2.4s, v2.8h, #0
; CHECK-NODOT-NEXT:    uaddw2 v1.2d, v1.2d, v3.4s
; CHECK-NODOT-NEXT:    uaddw v0.2d, v0.2d, v3.2s
; CHECK-NODOT-NEXT:    uaddl2 v3.2d, v4.4s, v5.4s
; CHECK-NODOT-NEXT:    uaddl v4.2d, v4.2s, v5.2s
; CHECK-NODOT-NEXT:    uaddw2 v1.2d, v1.2d, v2.4s
; CHECK-NODOT-NEXT:    uaddw v0.2d, v0.2d, v2.2s
; CHECK-NODOT-NEXT:    add v1.2d, v3.2d, v1.2d
; CHECK-NODOT-NEXT:    add v0.2d, v4.2d, v0.2d
; CHECK-NODOT-NEXT:    ret
entry:
  %a.wide = zext <16 x i8> %a to <16 x i64>
  %b.wide = zext <16 x i8> %b to <16 x i64>
  %mult = mul nuw nsw <16 x i64> %a.wide, %b.wide
  %partial.reduce = tail call <4 x i64> @llvm.experimental.vector.partial.reduce.add.v4i64.v16i64(
  <4 x i64> %acc, <16 x i64> %mult)
  ret <4 x i64> %partial.reduce
}

define <4 x i64> @sdot_8to64(<4 x i64> %acc, <16 x i8> %a, <16 x i8> %b){
; CHECK-DOT-LABEL: sdot_8to64:
; CHECK-DOT:       // %bb.0: // %entry
; CHECK-DOT-NEXT:    movi v4.2d, #0000000000000000
; CHECK-DOT-NEXT:    sdot v4.4s, v2.16b, v3.16b
; CHECK-DOT-NEXT:    saddw2 v1.2d, v1.2d, v4.4s
; CHECK-DOT-NEXT:    saddw v0.2d, v0.2d, v4.2s
; CHECK-DOT-NEXT:    ret
;
; CHECK-NODOT-LABEL: sdot_8to64:
; CHECK-NODOT:       // %bb.0: // %entry
; CHECK-NODOT-NEXT:    smull v4.8h, v2.8b, v3.8b
; CHECK-NODOT-NEXT:    smull2 v2.8h, v2.16b, v3.16b
; CHECK-NODOT-NEXT:    sshll v3.4s, v4.4h, #0
; CHECK-NODOT-NEXT:    sshll v5.4s, v2.4h, #0
; CHECK-NODOT-NEXT:    sshll2 v4.4s, v4.8h, #0
; CHECK-NODOT-NEXT:    sshll2 v2.4s, v2.8h, #0
; CHECK-NODOT-NEXT:    saddw2 v1.2d, v1.2d, v3.4s
; CHECK-NODOT-NEXT:    saddw v0.2d, v0.2d, v3.2s
; CHECK-NODOT-NEXT:    saddl2 v3.2d, v4.4s, v5.4s
; CHECK-NODOT-NEXT:    saddl v4.2d, v4.2s, v5.2s
; CHECK-NODOT-NEXT:    saddw2 v1.2d, v1.2d, v2.4s
; CHECK-NODOT-NEXT:    saddw v0.2d, v0.2d, v2.2s
; CHECK-NODOT-NEXT:    add v1.2d, v3.2d, v1.2d
; CHECK-NODOT-NEXT:    add v0.2d, v4.2d, v0.2d
; CHECK-NODOT-NEXT:    ret
entry:
  %a.wide = sext <16 x i8> %a to <16 x i64>
  %b.wide = sext <16 x i8> %b to <16 x i64>
  %mult = mul nuw nsw <16 x i64> %a.wide, %b.wide
  %partial.reduce = tail call <4 x i64> @llvm.experimental.vector.partial.reduce.add.v4i64.v16i64(
  <4 x i64> %acc, <16 x i64> %mult)
  ret <4 x i64> %partial.reduce
}

define <4 x i64> @usdot_8to64(<4 x i64> %acc, <16 x i8> %a, <16 x i8> %b){
; CHECK-NOI8MM-LABEL: usdot_8to64:
; CHECK-NOI8MM:       // %bb.0: // %entry
; CHECK-NOI8MM-NEXT:    ushll v4.8h, v2.8b, #0
; CHECK-NOI8MM-NEXT:    sshll v5.8h, v3.8b, #0
; CHECK-NOI8MM-NEXT:    ushll2 v2.8h, v2.16b, #0
; CHECK-NOI8MM-NEXT:    sshll2 v3.8h, v3.16b, #0
; CHECK-NOI8MM-NEXT:    ushll v6.4s, v4.4h, #0
; CHECK-NOI8MM-NEXT:    sshll v7.4s, v5.4h, #0
; CHECK-NOI8MM-NEXT:    ushll2 v4.4s, v4.8h, #0
; CHECK-NOI8MM-NEXT:    sshll2 v5.4s, v5.8h, #0
; CHECK-NOI8MM-NEXT:    ushll2 v16.4s, v2.8h, #0
; CHECK-NOI8MM-NEXT:    sshll2 v17.4s, v3.8h, #0
; CHECK-NOI8MM-NEXT:    ushll v2.4s, v2.4h, #0
; CHECK-NOI8MM-NEXT:    sshll v3.4s, v3.4h, #0
; CHECK-NOI8MM-NEXT:    smlal2 v1.2d, v6.4s, v7.4s
; CHECK-NOI8MM-NEXT:    smlal v0.2d, v6.2s, v7.2s
; CHECK-NOI8MM-NEXT:    smull v18.2d, v4.2s, v5.2s
; CHECK-NOI8MM-NEXT:    smull2 v4.2d, v4.4s, v5.4s
; CHECK-NOI8MM-NEXT:    smlal2 v1.2d, v16.4s, v17.4s
; CHECK-NOI8MM-NEXT:    smlal v0.2d, v16.2s, v17.2s
; CHECK-NOI8MM-NEXT:    smlal2 v4.2d, v2.4s, v3.4s
; CHECK-NOI8MM-NEXT:    smlal v18.2d, v2.2s, v3.2s
; CHECK-NOI8MM-NEXT:    add v1.2d, v4.2d, v1.2d
; CHECK-NOI8MM-NEXT:    add v0.2d, v18.2d, v0.2d
; CHECK-NOI8MM-NEXT:    ret
;
; CHECK-I8MM-LABEL: usdot_8to64:
; CHECK-I8MM:       // %bb.0: // %entry
; CHECK-I8MM-NEXT:    movi v4.2d, #0000000000000000
; CHECK-I8MM-NEXT:    usdot v4.4s, v2.16b, v3.16b
; CHECK-I8MM-NEXT:    saddw2 v1.2d, v1.2d, v4.4s
; CHECK-I8MM-NEXT:    saddw v0.2d, v0.2d, v4.2s
; CHECK-I8MM-NEXT:    ret
entry:
  %a.wide = zext <16 x i8> %a to <16 x i64>
  %b.wide = sext <16 x i8> %b to <16 x i64>
  %mult = mul nuw nsw <16 x i64> %a.wide, %b.wide
  %partial.reduce = tail call <4 x i64> @llvm.experimental.vector.partial.reduce.add.v4i64.v16i64(
  <4 x i64> %acc, <16 x i64> %mult)
  ret <4 x i64> %partial.reduce
}

define <4 x i64> @sudot_8to64(<4 x i64> %acc, <16 x i8> %a, <16 x i8> %b) {
; CHECK-NOI8MM-LABEL: sudot_8to64:
; CHECK-NOI8MM:       // %bb.0: // %entry
; CHECK-NOI8MM-NEXT:    sshll v4.8h, v2.8b, #0
; CHECK-NOI8MM-NEXT:    ushll v5.8h, v3.8b, #0
; CHECK-NOI8MM-NEXT:    sshll2 v2.8h, v2.16b, #0
; CHECK-NOI8MM-NEXT:    ushll2 v3.8h, v3.16b, #0
; CHECK-NOI8MM-NEXT:    sshll v6.4s, v4.4h, #0
; CHECK-NOI8MM-NEXT:    ushll v7.4s, v5.4h, #0
; CHECK-NOI8MM-NEXT:    sshll2 v4.4s, v4.8h, #0
; CHECK-NOI8MM-NEXT:    ushll2 v5.4s, v5.8h, #0
; CHECK-NOI8MM-NEXT:    sshll2 v16.4s, v2.8h, #0
; CHECK-NOI8MM-NEXT:    ushll2 v17.4s, v3.8h, #0
; CHECK-NOI8MM-NEXT:    sshll v2.4s, v2.4h, #0
; CHECK-NOI8MM-NEXT:    ushll v3.4s, v3.4h, #0
; CHECK-NOI8MM-NEXT:    smlal2 v1.2d, v6.4s, v7.4s
; CHECK-NOI8MM-NEXT:    smlal v0.2d, v6.2s, v7.2s
; CHECK-NOI8MM-NEXT:    smull v18.2d, v4.2s, v5.2s
; CHECK-NOI8MM-NEXT:    smull2 v4.2d, v4.4s, v5.4s
; CHECK-NOI8MM-NEXT:    smlal2 v1.2d, v16.4s, v17.4s
; CHECK-NOI8MM-NEXT:    smlal v0.2d, v16.2s, v17.2s
; CHECK-NOI8MM-NEXT:    smlal2 v4.2d, v2.4s, v3.4s
; CHECK-NOI8MM-NEXT:    smlal v18.2d, v2.2s, v3.2s
; CHECK-NOI8MM-NEXT:    add v1.2d, v4.2d, v1.2d
; CHECK-NOI8MM-NEXT:    add v0.2d, v18.2d, v0.2d
; CHECK-NOI8MM-NEXT:    ret
;
; CHECK-I8MM-LABEL: sudot_8to64:
; CHECK-I8MM:       // %bb.0: // %entry
; CHECK-I8MM-NEXT:    movi v4.2d, #0000000000000000
; CHECK-I8MM-NEXT:    usdot v4.4s, v3.16b, v2.16b
; CHECK-I8MM-NEXT:    saddw2 v1.2d, v1.2d, v4.4s
; CHECK-I8MM-NEXT:    saddw v0.2d, v0.2d, v4.2s
; CHECK-I8MM-NEXT:    ret
entry:
  %a.wide = sext <16 x i8> %a to <16 x i64>
  %b.wide = zext <16 x i8> %b to <16 x i64>
  %mult = mul nuw nsw <16 x i64> %a.wide, %b.wide
  %partial.reduce = tail call <4 x i64> @llvm.experimental.vector.partial.reduce.add.v4i64.v16i64(
  <4 x i64> %acc, <16 x i64> %mult)
  ret <4 x i64> %partial.reduce
}

define <4 x i32> @not_udot(<4 x i32> %acc, <8 x i8> %u, <8 x i8> %s) #0{
; CHECK-LABEL: not_udot:
; CHECK:       // %bb.0:
; CHECK-NEXT:    umull v1.8h, v2.8b, v1.8b
; CHECK-NEXT:    uaddw v0.4s, v0.4s, v1.4h
; CHECK-NEXT:    uaddw2 v0.4s, v0.4s, v1.8h
; CHECK-NEXT:    ret
  %u.wide = zext <8 x i8> %u to <8 x i32>
  %s.wide = zext <8 x i8> %s to <8 x i32>
  %mult = mul nuw nsw <8 x i32> %s.wide, %u.wide
  %partial.reduce = tail call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> %acc, <8 x i32> %mult)
  ret <4 x i32> %partial.reduce
}

define <2 x i32> @not_udot_narrow(<2 x i32> %acc, <4 x i8> %u, <4 x i8> %s) {
; CHECK-LABEL: not_udot_narrow:
; CHECK:       // %bb.0:
; CHECK-NEXT:    bic v1.4h, #255, lsl #8
; CHECK-NEXT:    bic v2.4h, #255, lsl #8
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-NEXT:    umull v3.4s, v2.4h, v1.4h
; CHECK-NEXT:    umlal v0.4s, v2.4h, v1.4h
; CHECK-NEXT:    ext v1.16b, v3.16b, v3.16b, #8
; CHECK-NEXT:    add v0.2s, v1.2s, v0.2s
; CHECK-NEXT:    ret
  %u.wide = zext <4 x i8> %u to <4 x i32>
  %s.wide = zext <4 x i8> %s to <4 x i32>
  %mult = mul nuw nsw <4 x i32> %s.wide, %u.wide
  %partial.reduce = tail call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<2 x i32> %acc, <4 x i32> %mult)
  ret <2 x i32> %partial.reduce
}
llvm/llvm/test/CodeGen/AArch64/neon-partial-reduce-dot-product.ll
