third_party/llvm-project/llvm/test/CodeGen/X86/haddsub-shuf.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+ssse3 | FileCheck %s --check-prefix=SSSE3
; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+avx  | FileCheck %s --check-prefixes=AVX,AVX1
; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+avx2 | FileCheck %s --check-prefixes=AVX,AVX2

; The next 8 tests check for matching the horizontal op and eliminating the shuffle.
; PR34111 - https://bugs.llvm.org/show_bug.cgi?id=34111

define <4 x float> @hadd_v4f32(<4 x float> %a) {
; SSSE3-LABEL: hadd_v4f32:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    haddps %xmm0, %xmm0
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hadd_v4f32:
; AVX:       # %bb.0:
; AVX-NEXT:    vhaddps %xmm0, %xmm0, %xmm0
; AVX-NEXT:    retq
  %a02 = shufflevector <4 x float> %a, <4 x float> undef, <2 x i32> <i32 0, i32 2>
  %a13 = shufflevector <4 x float> %a, <4 x float> undef, <2 x i32> <i32 1, i32 3>
  %hop = fadd <2 x float> %a02, %a13
  %shuf = shufflevector <2 x float> %hop, <2 x float> undef, <4 x i32> <i32 undef, i32 undef, i32 0, i32 1>
  ret <4 x float> %shuf
}

define <8 x float> @hadd_v8f32a(<8 x float> %a) {
; SSSE3-LABEL: hadd_v8f32a:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    movaps %xmm0, %xmm2
; SSSE3-NEXT:    haddps %xmm1, %xmm2
; SSSE3-NEXT:    movddup {{.*#+}} xmm0 = xmm2[0,0]
; SSSE3-NEXT:    movaps %xmm2, %xmm1
; SSSE3-NEXT:    retq
;
; AVX1-LABEL: hadd_v8f32a:
; AVX1:       # %bb.0:
; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
; AVX1-NEXT:    vhaddps %xmm1, %xmm0, %xmm0
; AVX1-NEXT:    vmovddup {{.*#+}} xmm1 = xmm0[0,0]
; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT:    retq
;
; AVX2-LABEL: hadd_v8f32a:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vextractf128 $1, %ymm0, %xmm1
; AVX2-NEXT:    vhaddps %xmm1, %xmm0, %xmm0
; AVX2-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,0,2,1]
; AVX2-NEXT:    retq
  %a0 = shufflevector <8 x float> %a, <8 x float> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
  %a1 = shufflevector <8 x float> %a, <8 x float> undef, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
  %hop = fadd <4 x float> %a0, %a1
  %shuf = shufflevector <4 x float> %hop, <4 x float> undef, <8 x i32> <i32 undef, i32 undef, i32 0, i32 1, i32 undef, i32 undef, i32 2, i32 3>
  ret <8 x float> %shuf
}

define <8 x float> @hadd_v8f32b(<8 x float> %a) {
; SSSE3-LABEL: hadd_v8f32b:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    haddps %xmm0, %xmm0
; SSSE3-NEXT:    haddps %xmm1, %xmm1
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hadd_v8f32b:
; AVX:       # %bb.0:
; AVX-NEXT:    vhaddps %ymm0, %ymm0, %ymm0
; AVX-NEXT:    retq
  %a0 = shufflevector <8 x float> %a, <8 x float> undef, <8 x i32> <i32 0, i32 2, i32 undef, i32 undef, i32 4, i32 6, i32 undef, i32 undef>
  %a1 = shufflevector <8 x float> %a, <8 x float> undef, <8 x i32> <i32 1, i32 3, i32 undef, i32 undef, i32 5, i32 7, i32 undef, i32 undef>
  %hop = fadd <8 x float> %a0, %a1
  %shuf = shufflevector <8 x float> %hop, <8 x float> undef, <8 x i32> <i32 0, i32 1, i32 0, i32 1, i32 4, i32 5, i32 4, i32 5>
  ret <8 x float> %shuf
}

define <4 x float> @hsub_v4f32(<4 x float> %a) {
; SSSE3-LABEL: hsub_v4f32:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    hsubps %xmm0, %xmm0
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hsub_v4f32:
; AVX:       # %bb.0:
; AVX-NEXT:    vhsubps %xmm0, %xmm0, %xmm0
; AVX-NEXT:    retq
  %a02 = shufflevector <4 x float> %a, <4 x float> undef, <2 x i32> <i32 0, i32 2>
  %a13 = shufflevector <4 x float> %a, <4 x float> undef, <2 x i32> <i32 1, i32 3>
  %hop = fsub <2 x float> %a02, %a13
  %shuf = shufflevector <2 x float> %hop, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 0, i32 1>
  ret <4 x float> %shuf
}

define <8 x float> @hsub_v8f32a(<8 x float> %a) {
; SSSE3-LABEL: hsub_v8f32a:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    movaps %xmm0, %xmm2
; SSSE3-NEXT:    hsubps %xmm1, %xmm2
; SSSE3-NEXT:    movddup {{.*#+}} xmm0 = xmm2[0,0]
; SSSE3-NEXT:    movaps %xmm2, %xmm1
; SSSE3-NEXT:    retq
;
; AVX1-LABEL: hsub_v8f32a:
; AVX1:       # %bb.0:
; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
; AVX1-NEXT:    vhsubps %xmm1, %xmm0, %xmm0
; AVX1-NEXT:    vmovddup {{.*#+}} xmm1 = xmm0[0,0]
; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT:    retq
;
; AVX2-LABEL: hsub_v8f32a:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vextractf128 $1, %ymm0, %xmm1
; AVX2-NEXT:    vhsubps %xmm1, %xmm0, %xmm0
; AVX2-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,0,2,1]
; AVX2-NEXT:    retq
  %a0 = shufflevector <8 x float> %a, <8 x float> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
  %a1 = shufflevector <8 x float> %a, <8 x float> undef, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
  %hop = fsub <4 x float> %a0, %a1
  %shuf = shufflevector <4 x float> %hop, <4 x float> undef, <8 x i32> <i32 undef, i32 undef, i32 0, i32 1, i32 undef, i32 undef, i32 2, i32 3>
  ret <8 x float> %shuf
}

define <8 x float> @hsub_v8f32b(<8 x float> %a) {
; SSSE3-LABEL: hsub_v8f32b:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    hsubps %xmm0, %xmm0
; SSSE3-NEXT:    hsubps %xmm1, %xmm1
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hsub_v8f32b:
; AVX:       # %bb.0:
; AVX-NEXT:    vhsubps %ymm0, %ymm0, %ymm0
; AVX-NEXT:    retq
  %a0 = shufflevector <8 x float> %a, <8 x float> undef, <8 x i32> <i32 0, i32 2, i32 undef, i32 undef, i32 4, i32 6, i32 undef, i32 undef>
  %a1 = shufflevector <8 x float> %a, <8 x float> undef, <8 x i32> <i32 1, i32 3, i32 undef, i32 undef, i32 5, i32 7, i32 undef, i32 undef>
  %hop = fsub <8 x float> %a0, %a1
  %shuf = shufflevector <8 x float> %hop, <8 x float> undef, <8 x i32> <i32 0, i32 1, i32 0, i32 1, i32 4, i32 5, i32 4, i32 5>
  ret <8 x float> %shuf
}

define <2 x double> @hadd_v2f64(<2 x double> %a) {
; SSSE3-LABEL: hadd_v2f64:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    haddpd %xmm0, %xmm0
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hadd_v2f64:
; AVX:       # %bb.0:
; AVX-NEXT:    vhaddpd %xmm0, %xmm0, %xmm0
; AVX-NEXT:    retq
  %a0 = shufflevector <2 x double> %a, <2 x double> undef, <2 x i32> <i32 0, i32 undef>
  %a1 = shufflevector <2 x double> %a, <2 x double> undef, <2 x i32> <i32 1, i32 undef>
  %hop = fadd <2 x double> %a0, %a1
  %shuf = shufflevector <2 x double> %hop, <2 x double> undef, <2 x i32> <i32 0, i32 0>
  ret <2 x double> %shuf
}

define <4 x double> @hadd_v4f64(<4 x double> %a) {
; SSSE3-LABEL: hadd_v4f64:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    haddpd %xmm0, %xmm0
; SSSE3-NEXT:    haddpd %xmm1, %xmm1
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hadd_v4f64:
; AVX:       # %bb.0:
; AVX-NEXT:    vhaddpd %ymm0, %ymm0, %ymm0
; AVX-NEXT:    retq
  %a0 = shufflevector <4 x double> %a, <4 x double> undef, <4 x i32> <i32 0, i32 undef, i32 2, i32 undef>
  %a1 = shufflevector <4 x double> %a, <4 x double> undef, <4 x i32> <i32 1, i32 undef, i32 3, i32 undef>
  %hop = fadd <4 x double> %a0, %a1
  %shuf = shufflevector <4 x double> %hop, <4 x double> undef, <4 x i32> <i32 0, i32 0, i32 2, i32 2>
  ret <4 x double> %shuf
}

define <2 x double> @hsub_v2f64(<2 x double> %a) {
; SSSE3-LABEL: hsub_v2f64:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    hsubpd %xmm0, %xmm0
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hsub_v2f64:
; AVX:       # %bb.0:
; AVX-NEXT:    vhsubpd %xmm0, %xmm0, %xmm0
; AVX-NEXT:    retq
  %a0 = shufflevector <2 x double> %a, <2 x double> undef, <2 x i32> <i32 0, i32 undef>
  %a1 = shufflevector <2 x double> %a, <2 x double> undef, <2 x i32> <i32 1, i32 undef>
  %hop = fsub <2 x double> %a0, %a1
  %shuf = shufflevector <2 x double> %hop, <2 x double> undef, <2 x i32> <i32 undef, i32 0>
  ret <2 x double> %shuf
}

define <4 x double> @hsub_v4f64(<4 x double> %a) {
; SSSE3-LABEL: hsub_v4f64:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    hsubpd %xmm0, %xmm0
; SSSE3-NEXT:    hsubpd %xmm1, %xmm1
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hsub_v4f64:
; AVX:       # %bb.0:
; AVX-NEXT:    vhsubpd %ymm0, %ymm0, %ymm0
; AVX-NEXT:    retq
  %a0 = shufflevector <4 x double> %a, <4 x double> undef, <4 x i32> <i32 0, i32 undef, i32 2, i32 undef>
  %a1 = shufflevector <4 x double> %a, <4 x double> undef, <4 x i32> <i32 1, i32 undef, i32 3, i32 undef>
  %hop = fsub <4 x double> %a0, %a1
  %shuf = shufflevector <4 x double> %hop, <4 x double> undef, <4 x i32> <i32 0, i32 0, i32 2, i32 2>
  ret <4 x double> %shuf
}

define <4 x i32> @hadd_v4i32(<4 x i32> %a) {
; SSSE3-LABEL: hadd_v4i32:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    phaddd %xmm0, %xmm0
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hadd_v4i32:
; AVX:       # %bb.0:
; AVX-NEXT:    vphaddd %xmm0, %xmm0, %xmm0
; AVX-NEXT:    retq
  %a02 = shufflevector <4 x i32> %a, <4 x i32> undef, <4 x i32> <i32 0, i32 2, i32 undef, i32 undef>
  %a13 = shufflevector <4 x i32> %a, <4 x i32> undef, <4 x i32> <i32 1, i32 3, i32 undef, i32 undef>
  %hop = add <4 x i32> %a02, %a13
  %shuf = shufflevector <4 x i32> %hop, <4 x i32> undef, <4 x i32> <i32 0, i32 undef, i32 undef, i32 1>
  ret <4 x i32> %shuf
}

define <8 x i32> @hadd_v8i32a(<8 x i32> %a) {
; SSSE3-LABEL: hadd_v8i32a:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    movdqa %xmm0, %xmm2
; SSSE3-NEXT:    phaddd %xmm1, %xmm2
; SSSE3-NEXT:    pshufd {{.*#+}} xmm0 = xmm2[0,1,0,1]
; SSSE3-NEXT:    movdqa %xmm2, %xmm1
; SSSE3-NEXT:    retq
;
; AVX1-LABEL: hadd_v8i32a:
; AVX1:       # %bb.0:
; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
; AVX1-NEXT:    vphaddd %xmm1, %xmm0, %xmm0
; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm0[0,1,0,1]
; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT:    retq
;
; AVX2-LABEL: hadd_v8i32a:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
; AVX2-NEXT:    vphaddd %xmm1, %xmm0, %xmm0
; AVX2-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,0,2,1]
; AVX2-NEXT:    retq
  %a0 = shufflevector <8 x i32> %a, <8 x i32> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
  %a1 = shufflevector <8 x i32> %a, <8 x i32> undef, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
  %hop = add <4 x i32> %a0, %a1
  %shuf = shufflevector <4 x i32> %hop, <4 x i32> undef, <8 x i32> <i32 undef, i32 undef, i32 0, i32 1, i32 undef, i32 undef, i32 2, i32 3>
  ret <8 x i32> %shuf
}

define <8 x i32> @hadd_v8i32b(<8 x i32> %a) {
; SSSE3-LABEL: hadd_v8i32b:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    phaddd %xmm0, %xmm0
; SSSE3-NEXT:    phaddd %xmm1, %xmm1
; SSSE3-NEXT:    retq
;
; AVX1-LABEL: hadd_v8i32b:
; AVX1:       # %bb.0:
; AVX1-NEXT:    vphaddd %xmm0, %xmm0, %xmm1
; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm0
; AVX1-NEXT:    vphaddd %xmm0, %xmm0, %xmm0
; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT:    vmovddup {{.*#+}} ymm0 = ymm0[0,0,2,2]
; AVX1-NEXT:    retq
;
; AVX2-LABEL: hadd_v8i32b:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vphaddd %ymm0, %ymm0, %ymm0
; AVX2-NEXT:    retq
  %a0 = shufflevector <8 x i32> %a, <8 x i32> undef, <8 x i32> <i32 0, i32 2, i32 undef, i32 undef, i32 4, i32 6, i32 undef, i32 undef>
  %a1 = shufflevector <8 x i32> %a, <8 x i32> undef, <8 x i32> <i32 1, i32 3, i32 undef, i32 undef, i32 5, i32 7, i32 undef, i32 undef>
  %hop = add <8 x i32> %a0, %a1
  %shuf = shufflevector <8 x i32> %hop, <8 x i32> undef, <8 x i32> <i32 0, i32 1, i32 0, i32 1, i32 4, i32 5, i32 4, i32 5>
  ret <8 x i32> %shuf
}

define <4 x i32> @hsub_v4i32(<4 x i32> %a) {
; SSSE3-LABEL: hsub_v4i32:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    phsubd %xmm0, %xmm0
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hsub_v4i32:
; AVX:       # %bb.0:
; AVX-NEXT:    vphsubd %xmm0, %xmm0, %xmm0
; AVX-NEXT:    retq
  %a02 = shufflevector <4 x i32> %a, <4 x i32> undef, <4 x i32> <i32 0, i32 2, i32 undef, i32 undef>
  %a13 = shufflevector <4 x i32> %a, <4 x i32> undef, <4 x i32> <i32 1, i32 3, i32 undef, i32 undef>
  %hop = sub <4 x i32> %a02, %a13
  %shuf = shufflevector <4 x i32> %hop, <4 x i32> undef, <4 x i32> <i32 undef, i32 1, i32 0, i32 undef>
  ret <4 x i32> %shuf
}

define <8 x i32> @hsub_v8i32a(<8 x i32> %a) {
; SSSE3-LABEL: hsub_v8i32a:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    movdqa %xmm0, %xmm2
; SSSE3-NEXT:    phsubd %xmm1, %xmm2
; SSSE3-NEXT:    pshufd {{.*#+}} xmm0 = xmm2[0,1,0,1]
; SSSE3-NEXT:    movdqa %xmm2, %xmm1
; SSSE3-NEXT:    retq
;
; AVX1-LABEL: hsub_v8i32a:
; AVX1:       # %bb.0:
; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
; AVX1-NEXT:    vphsubd %xmm1, %xmm0, %xmm0
; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm0[0,1,0,1]
; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT:    retq
;
; AVX2-LABEL: hsub_v8i32a:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
; AVX2-NEXT:    vphsubd %xmm1, %xmm0, %xmm0
; AVX2-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,0,2,1]
; AVX2-NEXT:    retq
  %a0 = shufflevector <8 x i32> %a, <8 x i32> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
  %a1 = shufflevector <8 x i32> %a, <8 x i32> undef, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
  %hop = sub <4 x i32> %a0, %a1
  %shuf = shufflevector <4 x i32> %hop, <4 x i32> undef, <8 x i32> <i32 undef, i32 undef, i32 0, i32 1, i32 undef, i32 undef, i32 2, i32 3>
  ret <8 x i32> %shuf
}

define <8 x i32> @hsub_v8i32b(<8 x i32> %a) {
; SSSE3-LABEL: hsub_v8i32b:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    phsubd %xmm0, %xmm0
; SSSE3-NEXT:    phsubd %xmm1, %xmm1
; SSSE3-NEXT:    retq
;
; AVX1-LABEL: hsub_v8i32b:
; AVX1:       # %bb.0:
; AVX1-NEXT:    vphsubd %xmm0, %xmm0, %xmm1
; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm0
; AVX1-NEXT:    vphsubd %xmm0, %xmm0, %xmm0
; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT:    vmovddup {{.*#+}} ymm0 = ymm0[0,0,2,2]
; AVX1-NEXT:    retq
;
; AVX2-LABEL: hsub_v8i32b:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vphsubd %ymm0, %ymm0, %ymm0
; AVX2-NEXT:    retq
  %a0 = shufflevector <8 x i32> %a, <8 x i32> undef, <8 x i32> <i32 0, i32 2, i32 undef, i32 undef, i32 4, i32 6, i32 undef, i32 undef>
  %a1 = shufflevector <8 x i32> %a, <8 x i32> undef, <8 x i32> <i32 1, i32 3, i32 undef, i32 undef, i32 5, i32 7, i32 undef, i32 undef>
  %hop = sub <8 x i32> %a0, %a1
  %shuf = shufflevector <8 x i32> %hop, <8 x i32> undef, <8 x i32> <i32 0, i32 1, i32 0, i32 1, i32 4, i32 5, i32 4, i32 5>
  ret <8 x i32> %shuf
}

define <8 x i16> @hadd_v8i16(<8 x i16> %a) {
; SSSE3-LABEL: hadd_v8i16:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    phaddw %xmm0, %xmm0
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hadd_v8i16:
; AVX:       # %bb.0:
; AVX-NEXT:    vphaddw %xmm0, %xmm0, %xmm0
; AVX-NEXT:    retq
  %a0246 = shufflevector <8 x i16> %a, <8 x i16> undef, <8 x i32> <i32 0, i32 2, i32 4, i32 6, i32 undef, i32 undef, i32 undef, i32 undef>
  %a1357 = shufflevector <8 x i16> %a, <8 x i16> undef, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
  %hop = add <8 x i16> %a0246, %a1357
  %shuf = shufflevector <8 x i16> %hop, <8 x i16> undef, <8 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 0, i32 1, i32 2, i32 3>
  ret <8 x i16> %shuf
}

define <16 x i16> @hadd_v16i16a(<16 x i16> %a) {
; SSSE3-LABEL: hadd_v16i16a:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    movdqa %xmm0, %xmm2
; SSSE3-NEXT:    phaddw %xmm1, %xmm2
; SSSE3-NEXT:    pshufd {{.*#+}} xmm0 = xmm2[0,1,0,1]
; SSSE3-NEXT:    movdqa %xmm2, %xmm1
; SSSE3-NEXT:    retq
;
; AVX1-LABEL: hadd_v16i16a:
; AVX1:       # %bb.0:
; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
; AVX1-NEXT:    vphaddw %xmm1, %xmm0, %xmm0
; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm0[0,1,0,1]
; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT:    retq
;
; AVX2-LABEL: hadd_v16i16a:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
; AVX2-NEXT:    vphaddw %xmm1, %xmm0, %xmm0
; AVX2-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,0,2,1]
; AVX2-NEXT:    retq
  %a0 = shufflevector <16 x i16> %a, <16 x i16> undef, <8 x i32> <i32 0, i32 2, i32 4, i32 6, i32 8, i32 10, i32 12, i32 14>
  %a1 = shufflevector <16 x i16> %a, <16 x i16> undef, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15>
  %hop = add <8 x i16> %a0, %a1
  %shuf = shufflevector <8 x i16> %hop, <8 x i16> undef, <16 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 4, i32 5, i32 6, i32 7>
  ret <16 x i16> %shuf
}

define <16 x i16> @hadd_v16i16b(<16 x i16> %a) {
; SSSE3-LABEL: hadd_v16i16b:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    phaddw %xmm0, %xmm0
; SSSE3-NEXT:    phaddw %xmm1, %xmm1
; SSSE3-NEXT:    retq
;
; AVX1-LABEL: hadd_v16i16b:
; AVX1:       # %bb.0:
; AVX1-NEXT:    vphaddw %xmm0, %xmm0, %xmm1
; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm0
; AVX1-NEXT:    vphaddw %xmm0, %xmm0, %xmm0
; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT:    vmovddup {{.*#+}} ymm0 = ymm0[0,0,2,2]
; AVX1-NEXT:    retq
;
; AVX2-LABEL: hadd_v16i16b:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vphaddw %ymm0, %ymm0, %ymm0
; AVX2-NEXT:    retq
  %a0 = shufflevector <16 x i16> %a, <16 x i16> undef, <16 x i32> <i32 0, i32 2, i32 4, i32 6, i32 undef, i32 undef, i32 undef, i32 undef, i32 8, i32 10, i32 12, i32 14, i32 undef, i32 undef, i32 undef, i32 undef>
  %a1 = shufflevector <16 x i16> %a, <16 x i16> undef, <16 x i32> <i32 1, i32 3, i32 5, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 9, i32 11, i32 13, i32 15, i32 undef, i32 undef, i32 undef, i32 undef>
  %hop = add <16 x i16> %a0, %a1
  %shuf = shufflevector <16 x i16> %hop, <16 x i16> undef, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3, i32 8, i32 9, i32 10, i32 11, i32 8, i32 9, i32 10, i32 11>
  ret <16 x i16> %shuf
}

define <8 x i16> @hsub_v8i16(<8 x i16> %a) {
; SSSE3-LABEL: hsub_v8i16:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    phsubw %xmm0, %xmm0
; SSSE3-NEXT:    retq
;
; AVX-LABEL: hsub_v8i16:
; AVX:       # %bb.0:
; AVX-NEXT:    vphsubw %xmm0, %xmm0, %xmm0
; AVX-NEXT:    retq
  %a0246 = shufflevector <8 x i16> %a, <8 x i16> undef, <8 x i32> <i32 0, i32 2, i32 4, i32 6, i32 undef, i32 undef, i32 undef, i32 undef>
  %a1357 = shufflevector <8 x i16> %a, <8 x i16> undef, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
  %hop = sub <8 x i16> %a0246, %a1357
  %shuf = shufflevector <8 x i16> %hop, <8 x i16> undef, <8 x i32> <i32 0, i32 undef, i32 2, i32 undef, i32 undef, i32 1, i32 undef, i32 3>
  ret <8 x i16> %shuf
}

define <16 x i16> @hsub_v16i16a(<16 x i16> %a) {
; SSSE3-LABEL: hsub_v16i16a:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    movdqa %xmm0, %xmm2
; SSSE3-NEXT:    phsubw %xmm1, %xmm2
; SSSE3-NEXT:    pshufd {{.*#+}} xmm0 = xmm2[0,1,0,1]
; SSSE3-NEXT:    movdqa %xmm2, %xmm1
; SSSE3-NEXT:    retq
;
; AVX1-LABEL: hsub_v16i16a:
; AVX1:       # %bb.0:
; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
; AVX1-NEXT:    vphsubw %xmm1, %xmm0, %xmm0
; AVX1-NEXT:    vpshufd {{.*#+}} xmm1 = xmm0[0,1,0,1]
; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT:    retq
;
; AVX2-LABEL: hsub_v16i16a:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
; AVX2-NEXT:    vphsubw %xmm1, %xmm0, %xmm0
; AVX2-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,0,2,1]
; AVX2-NEXT:    retq
  %a0 = shufflevector <16 x i16> %a, <16 x i16> undef, <8 x i32> <i32 0, i32 2, i32 4, i32 6, i32 8, i32 10, i32 12, i32 14>
  %a1 = shufflevector <16 x i16> %a, <16 x i16> undef, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15>
  %hop = sub <8 x i16> %a0, %a1
  %shuf = shufflevector <8 x i16> %hop, <8 x i16> undef, <16 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 4, i32 5, i32 6, i32 7>
  ret <16 x i16> %shuf
}

define <16 x i16> @hsub_v16i16b(<16 x i16> %a) {
; SSSE3-LABEL: hsub_v16i16b:
; SSSE3:       # %bb.0:
; SSSE3-NEXT:    phsubw %xmm0, %xmm0
; SSSE3-NEXT:    phsubw %xmm1, %xmm1
; SSSE3-NEXT:    retq
;
; AVX1-LABEL: hsub_v16i16b:
; AVX1:       # %bb.0:
; AVX1-NEXT:    vphsubw %xmm0, %xmm0, %xmm1
; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm0
; AVX1-NEXT:    vphsubw %xmm0, %xmm0, %xmm0
; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT:    vmovddup {{.*#+}} ymm0 = ymm0[0,0,2,2]
; AVX1-NEXT:    retq
;
; AVX2-LABEL: hsub_v16i16b:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vphsubw %ymm0, %ymm0, %ymm0
; AVX2-NEXT:    retq
  %a0 = shufflevector <16 x i16> %a, <16 x i16> undef, <16 x i32> <i32 0, i32 2, i32 4, i32 6, i32 undef, i32 undef, i32 undef, i32 undef, i32 8, i32 10, i32 12, i32 14, i32 undef, i32 undef, i32 undef, i32 undef>
  %a1 = shufflevector <16 x i16> %a, <16 x i16> undef, <16 x i32> <i32 1, i32 3, i32 5, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 9, i32 11, i32 13, i32 15, i32 undef, i32 undef, i32 undef, i32 undef>
  %hop = sub <16 x i16> %a0, %a1
  %shuf = shufflevector <16 x i16> %hop, <16 x i16> undef, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3, i32 8, i32 9, i32 10, i32 11, i32 8, i32 9, i32 10, i32 11>
  ret <16 x i16> %shuf
}