llvm/test/CodeGen/AArch64/sve2-int-mulh.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve2 < %s | FileCheck %s

;
; SMULH
;

define <vscale x 16 x i8> @smulh_i8(<vscale x 16 x i8> %a, <vscale x 16 x i8> %b) {
; CHECK-LABEL: smulh_i8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    smulh z0.b, z0.b, z1.b
; CHECK-NEXT:    ret
  %1 = sext <vscale x 16 x i8> %a to <vscale x 16 x i16>
  %2 = sext <vscale x 16 x i8> %b to <vscale x 16 x i16>
  %mul = mul <vscale x 16 x i16> %1, %2
  %shr = lshr <vscale x 16 x i16> %mul, splat(i16 8)
  %tr = trunc <vscale x 16 x i16> %shr to <vscale x 16 x i8>
  ret <vscale x 16 x i8> %tr
}

define <vscale x 8 x i16> @smulh_i16(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b) {
; CHECK-LABEL: smulh_i16:
; CHECK:       // %bb.0:
; CHECK-NEXT:    smulh z0.h, z0.h, z1.h
; CHECK-NEXT:    ret
  %1 = sext <vscale x 8 x i16> %a to <vscale x 8 x i32>
  %2 = sext <vscale x 8 x i16> %b to <vscale x 8 x i32>
  %mul = mul <vscale x 8 x i32> %1, %2
  %shr = lshr <vscale x 8 x i32> %mul, splat(i32 16)
  %tr = trunc <vscale x 8 x i32> %shr to <vscale x 8 x i16>
  ret <vscale x 8 x i16> %tr
}

define <vscale x 4 x i32> @smulh_i32(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b) {
; CHECK-LABEL: smulh_i32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    smulh z0.s, z0.s, z1.s
; CHECK-NEXT:    ret
  %1 = sext <vscale x 4 x i32> %a to <vscale x 4 x i64>
  %2 = sext <vscale x 4 x i32> %b to <vscale x 4 x i64>
  %mul = mul <vscale x 4 x i64> %1, %2
  %shr = lshr <vscale x 4 x i64> %mul, splat(i64 32)
  %tr = trunc <vscale x 4 x i64> %shr to <vscale x 4 x i32>
  ret <vscale x 4 x i32> %tr
}

define <vscale x 2 x i64> @smulh_i64(<vscale x 2 x i64> %a, <vscale x 2 x i64> %b) {
; CHECK-LABEL: smulh_i64:
; CHECK:       // %bb.0:
; CHECK-NEXT:    smulh z0.d, z0.d, z1.d
; CHECK-NEXT:    ret
  %1 = sext <vscale x 2 x i64> %a to <vscale x 2 x i128>
  %2 = sext <vscale x 2 x i64> %b to <vscale x 2 x i128>
  %mul = mul <vscale x 2 x i128> %1, %2
  %shr = lshr <vscale x 2 x i128> %mul, splat(i128 64)
  %tr = trunc <vscale x 2 x i128> %shr to <vscale x 2 x i64>
  ret <vscale x 2 x i64> %tr
}

;
; UMULH
;

define <vscale x 16 x i8> @umulh_i8(<vscale x 16 x i8> %a, <vscale x 16 x i8> %b) {
; CHECK-LABEL: umulh_i8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    umulh z0.b, z0.b, z1.b
; CHECK-NEXT:    ret
  %1 = zext <vscale x 16 x i8> %a to <vscale x 16 x i16>
  %2 = zext <vscale x 16 x i8> %b to <vscale x 16 x i16>
  %mul = mul <vscale x 16 x i16> %1, %2
  %shr = lshr <vscale x 16 x i16> %mul, splat(i16 8)
  %tr = trunc <vscale x 16 x i16> %shr to <vscale x 16 x i8>
  ret <vscale x 16 x i8> %tr
}

define <vscale x 8 x i16> @umulh_i16(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b) {
; CHECK-LABEL: umulh_i16:
; CHECK:       // %bb.0:
; CHECK-NEXT:    umulh z0.h, z0.h, z1.h
; CHECK-NEXT:    ret
  %1 = zext <vscale x 8 x i16> %a to <vscale x 8 x i32>
  %2 = zext <vscale x 8 x i16> %b to <vscale x 8 x i32>
  %mul = mul <vscale x 8 x i32> %1, %2
  %shr = lshr <vscale x 8 x i32> %mul, splat(i32 16)
  %tr = trunc <vscale x 8 x i32> %shr to <vscale x 8 x i16>
  ret <vscale x 8 x i16> %tr
}

define <vscale x 4 x i32> @umulh_i32(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b) {
; CHECK-LABEL: umulh_i32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    umulh z0.s, z0.s, z1.s
; CHECK-NEXT:    ret
  %1 = zext <vscale x 4 x i32> %a to <vscale x 4 x i64>
  %2 = zext <vscale x 4 x i32> %b to <vscale x 4 x i64>
  %mul = mul <vscale x 4 x i64> %1, %2
  %shr = lshr <vscale x 4 x i64> %mul, splat(i64 32)
  %tr = trunc <vscale x 4 x i64> %shr to <vscale x 4 x i32>
  ret <vscale x 4 x i32> %tr
}

define <vscale x 2 x i64> @umulh_i64(<vscale x 2 x i64> %a, <vscale x 2 x i64> %b) {
; CHECK-LABEL: umulh_i64:
; CHECK:       // %bb.0:
; CHECK-NEXT:    umulh z0.d, z0.d, z1.d
; CHECK-NEXT:    ret
  %1 = zext <vscale x 2 x i64> %a to <vscale x 2 x i128>
  %2 = zext <vscale x 2 x i64> %b to <vscale x 2 x i128>
  %mul = mul <vscale x 2 x i128> %1, %2
  %shr = lshr <vscale x 2 x i128> %mul, splat(i128 64)
  %tr = trunc <vscale x 2 x i128> %shr to <vscale x 2 x i64>
  ret <vscale x 2 x i64> %tr
}


; Fixed-length 128bits

define <16 x i8> @smulh_v16i8(<16 x i8> %a, <16 x i8> %b) {
; CHECK-LABEL: smulh_v16i8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
; CHECK-NEXT:    smulh z0.b, z0.b, z1.b
; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
; CHECK-NEXT:    ret
  %1 = sext <16 x i8> %a to <16 x i16>
  %2 = sext <16 x i8> %b to <16 x i16>
  %mul = mul <16 x i16> %1, %2
  %shr = lshr <16 x i16> %mul, splat(i16 8)
  %tr = trunc <16 x i16> %shr to <16 x i8>
  ret <16 x i8> %tr
}

define <8 x i16> @smulh_v8i16(<8 x i16> %a, <8 x i16> %b) {
; CHECK-LABEL: smulh_v8i16:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
; CHECK-NEXT:    smulh z0.h, z0.h, z1.h
; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
; CHECK-NEXT:    ret
  %1 = sext <8 x i16> %a to <8 x i32>
  %2 = sext <8 x i16> %b to <8 x i32>
  %mul = mul <8 x i32> %1, %2
  %shr = lshr <8 x i32> %mul, splat(i32 16)
  %tr = trunc <8 x i32> %shr to <8 x i16>
  ret <8 x i16> %tr
}

define <4 x i32> @smulh_v4i32(<4 x i32> %a, <4 x i32> %b) {
; CHECK-LABEL: smulh_v4i32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
; CHECK-NEXT:    smulh z0.s, z0.s, z1.s
; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
; CHECK-NEXT:    ret
  %1 = sext <4 x i32> %a to <4 x i64>
  %2 = sext <4 x i32> %b to <4 x i64>
  %mul = mul <4 x i64> %1, %2
  %shr = lshr <4 x i64> %mul, splat(i64 32)
  %tr = trunc <4 x i64> %shr to <4 x i32>
  ret <4 x i32> %tr
}

define <2 x i64> @smulh_v2i64(<2 x i64> %a, <2 x i64> %b) {
; CHECK-LABEL: smulh_v2i64:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
; CHECK-NEXT:    smulh z0.d, z0.d, z1.d
; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
; CHECK-NEXT:    ret
  %1 = sext <2 x i64> %a to <2 x i128>
  %2 = sext <2 x i64> %b to <2 x i128>
  %mul = mul <2 x i128> %1, %2
  %shr = lshr <2 x i128> %mul, splat(i128 64)
  %tr = trunc <2 x i128> %shr to <2 x i64>
  ret <2 x i64> %tr
}

define <16 x i8> @umulh_v16i8(<16 x i8> %a, <16 x i8> %b) {
; CHECK-LABEL: umulh_v16i8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
; CHECK-NEXT:    umulh z0.b, z0.b, z1.b
; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
; CHECK-NEXT:    ret
  %1 = zext <16 x i8> %a to <16 x i16>
  %2 = zext <16 x i8> %b to <16 x i16>
  %mul = mul <16 x i16> %1, %2
  %shr = lshr <16 x i16> %mul, splat(i16 8)
  %tr = trunc <16 x i16> %shr to <16 x i8>
  ret <16 x i8> %tr
}

define <8 x i16> @umulh_v8i16(<8 x i16> %a, <8 x i16> %b) {
; CHECK-LABEL: umulh_v8i16:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
; CHECK-NEXT:    umulh z0.h, z0.h, z1.h
; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
; CHECK-NEXT:    ret
  %1 = zext <8 x i16> %a to <8 x i32>
  %2 = zext <8 x i16> %b to <8 x i32>
  %mul = mul <8 x i32> %1, %2
  %shr = lshr <8 x i32> %mul, splat(i32 16)
  %tr = trunc <8 x i32> %shr to <8 x i16>
  ret <8 x i16> %tr
}

define <4 x i32> @umulh_v4i32(<4 x i32> %a, <4 x i32> %b) {
; CHECK-LABEL: umulh_v4i32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
; CHECK-NEXT:    umulh z0.s, z0.s, z1.s
; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
; CHECK-NEXT:    ret
  %1 = zext <4 x i32> %a to <4 x i64>
  %2 = zext <4 x i32> %b to <4 x i64>
  %mul = mul <4 x i64> %1, %2
  %shr = lshr <4 x i64> %mul, splat(i64 32)
  %tr = trunc <4 x i64> %shr to <4 x i32>
  ret <4 x i32> %tr
}

define <2 x i64> @umulh_v2i64(<2 x i64> %a, <2 x i64> %b) {
; CHECK-LABEL: umulh_v2i64:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
; CHECK-NEXT:    umulh z0.d, z0.d, z1.d
; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
; CHECK-NEXT:    ret
  %1 = zext <2 x i64> %a to <2 x i128>
  %2 = zext <2 x i64> %b to <2 x i128>
  %mul = mul <2 x i128> %1, %2
  %shr = lshr <2 x i128> %mul, splat(i128 64)
  %tr = trunc <2 x i128> %shr to <2 x i64>
  ret <2 x i64> %tr
}



; Fixed-length 64bits

define <8 x i8> @smulh_v8i8(<8 x i8> %a, <8 x i8> %b) {
; CHECK-LABEL: smulh_v8i8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
; CHECK-NEXT:    smulh z0.b, z0.b, z1.b
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
; CHECK-NEXT:    ret
  %1 = sext <8 x i8> %a to <8 x i16>
  %2 = sext <8 x i8> %b to <8 x i16>
  %mul = mul <8 x i16> %1, %2
  %shr = lshr <8 x i16> %mul, splat(i16 8)
  %tr = trunc <8 x i16> %shr to <8 x i8>
  ret <8 x i8> %tr
}

define <4 x i16> @smulh_v4i16(<4 x i16> %a, <4 x i16> %b) {
; CHECK-LABEL: smulh_v4i16:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
; CHECK-NEXT:    smulh z0.h, z0.h, z1.h
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
; CHECK-NEXT:    ret
  %1 = sext <4 x i16> %a to <4 x i32>
  %2 = sext <4 x i16> %b to <4 x i32>
  %mul = mul <4 x i32> %1, %2
  %shr = lshr <4 x i32> %mul, splat(i32 16)
  %tr = trunc <4 x i32> %shr to <4 x i16>
  ret <4 x i16> %tr
}

define <2 x i32> @smulh_v2i32(<2 x i32> %a, <2 x i32> %b) {
; CHECK-LABEL: smulh_v2i32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
; CHECK-NEXT:    smulh z0.s, z0.s, z1.s
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
; CHECK-NEXT:    ret
  %1 = sext <2 x i32> %a to <2 x i64>
  %2 = sext <2 x i32> %b to <2 x i64>
  %mul = mul <2 x i64> %1, %2
  %shr = lshr <2 x i64> %mul, splat(i64 32)
  %tr = trunc <2 x i64> %shr to <2 x i32>
  ret <2 x i32> %tr
}

define <1 x i64> @smulh_v1i64(<1 x i64> %a, <1 x i64> %b) {
; CHECK-LABEL: smulh_v1i64:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
; CHECK-NEXT:    smulh z0.d, z0.d, z1.d
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
; CHECK-NEXT:    ret
  %1 = sext <1 x i64> %a to <1 x i128>
  %2 = sext <1 x i64> %b to <1 x i128>
  %mul = mul <1 x i128> %1, %2
  %shr = lshr <1 x i128> %mul, splat(i128 64)
  %tr = trunc <1 x i128> %shr to <1 x i64>
  ret <1 x i64> %tr
}

define <8 x i8> @umulh_v8i8(<8 x i8> %a, <8 x i8> %b) {
; CHECK-LABEL: umulh_v8i8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
; CHECK-NEXT:    umulh z0.b, z0.b, z1.b
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
; CHECK-NEXT:    ret
  %1 = zext <8 x i8> %a to <8 x i16>
  %2 = zext <8 x i8> %b to <8 x i16>
  %mul = mul <8 x i16> %1, %2
  %shr = lshr <8 x i16> %mul, splat(i16 8)
  %tr = trunc <8 x i16> %shr to <8 x i8>
  ret <8 x i8> %tr
}

define <4 x i16> @umulh_v4i16(<4 x i16> %a, <4 x i16> %b) {
; CHECK-LABEL: umulh_v4i16:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
; CHECK-NEXT:    umulh z0.h, z0.h, z1.h
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
; CHECK-NEXT:    ret
  %1 = zext <4 x i16> %a to <4 x i32>
  %2 = zext <4 x i16> %b to <4 x i32>
  %mul = mul <4 x i32> %1, %2
  %shr = lshr <4 x i32> %mul, splat(i32 16)
  %tr = trunc <4 x i32> %shr to <4 x i16>
  ret <4 x i16> %tr
}

define <2 x i32> @umulh_v2i32(<2 x i32> %a, <2 x i32> %b) {
; CHECK-LABEL: umulh_v2i32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
; CHECK-NEXT:    umulh z0.s, z0.s, z1.s
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
; CHECK-NEXT:    ret
  %1 = zext <2 x i32> %a to <2 x i64>
  %2 = zext <2 x i32> %b to <2 x i64>
  %mul = mul <2 x i64> %1, %2
  %shr = lshr <2 x i64> %mul, splat(i64 32)
  %tr = trunc <2 x i64> %shr to <2 x i32>
  ret <2 x i32> %tr
}

define <1 x i64> @umulh_v1i64(<1 x i64> %a, <1 x i64> %b) {
; CHECK-LABEL: umulh_v1i64:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
; CHECK-NEXT:    umulh z0.d, z0.d, z1.d
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
; CHECK-NEXT:    ret
  %1 = zext <1 x i64> %a to <1 x i128>
  %2 = zext <1 x i64> %b to <1 x i128>
  %mul = mul <1 x i128> %1, %2
  %shr = lshr <1 x i128> %mul, splat(i128 64)
  %tr = trunc <1 x i128> %shr to <1 x i64>
  ret <1 x i64> %tr
}