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Merged
merged 9 commits into from
Aug 25, 2020
Merged

add some avx512f intrinsics(mask, rotation, shift) #884

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6d2e9b2
add some avx512f intrinsics
minybot Aug 18, 2020
a77dfeb
add rustc_args_required_const
minybot Aug 19, 2020
8c74b07
run cargo fmt to fix the CI errors
minybot Aug 20, 2020
601b615
fix rustc_args_reqired_const and imm8
minybot Aug 20, 2020
16b931c
fix assert_instr
minybot Aug 20, 2020
ae9e8bf
fix assert_instr 2
minybot Aug 20, 2020
a9193d6
fix assert_instr 3
minybot Aug 20, 2020
0cc2139
change llvm.x86.avx512.mask.pror.d to llvm.x86.avx512.pror.d
minybot Aug 20, 2020
e700382
fix to pass CI
minybot Aug 24, 2020
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107 changes: 107 additions & 0 deletions crates/core_arch/avx512f.md
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@@ -0,0 +1,107 @@
<summary>["AVX512F"]</summary><p>
* [x] [`_mm512_and_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_and_epi32&expand=5236)
* [x] [`_mm512_and_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_and_epi64&expand=5236)
* [x] [`_mm512_and_si512`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_and_si512&expand=5236)
* [x] [`_mm512_kand`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_kand&expand=5236)
* [x] [`_mm512_kor`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_kor&expand=5236)
* [x] [`_mm512_kxor`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_kxor&expand=5236)
* [x] [`_kand_mask16`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=kand_mask16&expand=3212)
* [x] [`_kor_mask16`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=kor_mask16&expand=3239)
* [x] [`_kxor_mask16`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=kxor_mask16&expand=3291)
* [x] [`_mm512_mask_and_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_and_epi32&expand=5236)
* [x] [`_mm512_mask_and_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_and_epi64&expand=5236)
* [x] [`_mm512_mask_or_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_or_epi32&expand=5236)
* [x] [`_mm512_mask_or_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_or_epi64&expand=5236)
* [x] [`_mm512_mask_rol_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_rol_epi32&expand=5236)
* [x] [`_mm512_mask_rol_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_rol_epi64&expand=5236)
* [x] [`_mm512_mask_rolv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_rolv_epi32&expand=5236)
* [x] [`_mm512_mask_rolv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_rolv_epi64&expand=5236)
* [x] [`_mm512_mask_ror_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_ror_epi32&expand=5236)
* [x] [`_mm512_mask_ror_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_ror_epi64&expand=5236)
* [x] [`_mm512_mask_rorv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_rorv_epi32&expand=5236)
* [x] [`_mm512_mask_rorv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_rorv_epi64&expand=5236)
* [x] [`_mm512_mask_sll_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_sll_epi32&expand=5236)
* [x] [`_mm512_mask_sll_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_sll_epi64&expand=5236)
* [x] [`_mm512_mask_slli_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_slli_epi32&expand=5236)
* [x] [`_mm512_mask_slli_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_slli_epi64&expand=5236)
* [x] [`_mm512_mask_sllv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_sllv_epi32&expand=5236)
* [x] [`_mm512_mask_sllv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_sllv_epi64&expand=5236)
* [x] [`_mm512_mask_sra_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_sra_epi32&expand=5236)
* [x] [`_mm512_mask_sra_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_sra_epi64&expand=5236)
* [x] [`_mm512_mask_srai_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_srai_epi32&expand=5236)
* [x] [`_mm512_mask_srai_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_srai_epi64&expand=5236)
* [x] [`_mm512_mask_srav_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_srav_epi32&expand=5236)
* [x] [`_mm512_mask_srav_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_srav_epi64&expand=5236)
* [x] [`_mm512_mask_srl_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_srl_epi32&expand=5236)
* [x] [`_mm512_mask_srl_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_srl_epi64&expand=5236)
* [x] [`_mm512_mask_srli_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_srli_epi32&expand=5236)
* [x] [`_mm512_mask_srli_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_srli_epi64&expand=5236)
* [x] [`_mm512_mask_srlv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_srlv_epi32&expand=5236)
* [x] [`_mm512_mask_srlv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_srlv_epi64&expand=5236)
* [x] [`_mm512_mask_xor_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_xor_epi32&expand=5236)
* [x] [`_mm512_mask_xor_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_mask_xor_epi64&expand=5236)
* [x] [`_mm512_maskz_and_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_and_epi32&expand=5236)
* [x] [`_mm512_maskz_and_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_and_epi64&expand=5236)
* [x] [`_mm512_maskz_or_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_or_epi32&expand=5236)
* [x] [`_mm512_maskz_or_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_or_epi64&expand=5236)
* [x] [`_mm512_maskz_rol_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_rol_epi32&expand=5236)
* [x] [`_mm512_maskz_rol_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_rol_epi64&expand=5236)
* [x] [`_mm512_maskz_rolv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_rolv_epi32&expand=5236)
* [x] [`_mm512_maskz_rolv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_rolv_epi64&expand=5236)
* [x] [`_mm512_maskz_ror_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_ror_epi32&expand=5236)
* [x] [`_mm512_maskz_ror_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_ror_epi64&expand=5236)
* [x] [`_mm512_maskz_rorv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_rorv_epi32&expand=5236)
* [x] [`_mm512_maskz_rorv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_rorv_epi64&expand=5236)
* [x] [`_mm512_maskz_sll_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_sll_epi32&expand=5236)
* [x] [`_mm512_maskz_sll_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_sll_epi64&expand=5236)
* [x] [`_mm512_maskz_slli_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_slli_epi32&expand=5236)
* [x] [`_mm512_maskz_slli_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_slli_epi64&expand=5236)
* [x] [`_mm512_maskz_sllv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_sllv_epi32&expand=5236)
* [x] [`_mm512_maskz_sllv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_sllv_epi64&expand=5236)
* [x] [`_mm512_maskz_sra_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_sra_epi32&expand=5236)
* [x] [`_mm512_maskz_sra_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_sra_epi64&expand=5236)
* [x] [`_mm512_maskz_srai_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_srai_epi32&expand=5236)
* [x] [`_mm512_maskz_srai_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_srai_epi64&expand=5236)
* [x] [`_mm512_maskz_srav_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_srav_epi32&expand=5236)
* [x] [`_mm512_maskz_srav_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_srav_epi64&expand=5236)
* [x] [`_mm512_maskz_srl_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_srl_epi32&expand=5236)
* [x] [`_mm512_maskz_srl_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_srl_epi64&expand=5236)
* [x] [`_mm512_maskz_srli_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_srli_epi32&expand=5236)
* [x] [`_mm512_maskz_srli_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_srli_epi64&expand=5236)
* [x] [`_mm512_maskz_srlv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_srlv_epi32&expand=5236)
* [x] [`_mm512_maskz_srlv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_srlv_epi64&expand=5236)
* [x] [`_mm512_maskz_xor_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_xor_epi32&expand=5236)
* [x] [`_mm512_maskz_xor_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_maskz_xor_epi64&expand=5236)
* [x] [`_mm512_or_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_or_epi32&expand=5236)
* [x] [`_mm512_or_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_or_epi64&expand=5236)
* [x] [`_mm512_or_si512`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_or_si512&expand=5236)
* [x] [`_mm512_rol_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_rol_epi32&expand=5236)
* [x] [`_mm512_rol_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_rol_epi64&expand=5236)
* [x] [`_mm512_rolv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_rolv_epi32&expand=5236)
* [x] [`_mm512_rolv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_rolv_epi64&expand=5236)
* [x] [`_mm512_ror_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_ror_epi32&expand=5236)
* [x] [`_mm512_ror_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_ror_epi64&expand=5236)
* [x] [`_mm512_rorv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_rorv_epi32&expand=5236)
* [x] [`_mm512_rorv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_rorv_epi64&expand=5236)
* [x] [`_mm512_sll_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_sll_epi32&expand=5236)
* [x] [`_mm512_sll_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_sll_epi64&expand=5236)
* [x] [`_mm512_slli_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_slli_epi32&expand=5236)
* [x] [`_mm512_slli_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_slli_epi64&expand=5236)
* [x] [`_mm512_sllv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_sllv_epi32&expand=5236)
* [x] [`_mm512_sllv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_sllv_epi64&expand=5236)
* [x] [`_mm512_sra_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_sra_epi32&expand=5236)
* [x] [`_mm512_sra_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_sra_epi64&expand=5236)
* [x] [`_mm512_srai_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_srai_epi32&expand=5236)
* [x] [`_mm512_srai_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_srai_epi64&expand=5236)
* [x] [`_mm512_srav_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_srav_epi32&expand=5236)
* [x] [`_mm512_srav_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_srav_epi64&expand=5236)
* [x] [`_mm512_srl_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_srl_epi32&expand=5236)
* [x] [`_mm512_srl_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_srl_epi64&expand=5236)
* [x] [`_mm512_srli_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_srli_epi32&expand=5236)
* [x] [`_mm512_srli_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_srli_epi64&expand=5236)
* [x] [`_mm512_srlv_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_srlv_epi32&expand=5236)
* [x] [`_mm512_srlv_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_srlv_epi64&expand=5236)
* [x] [`_mm512_xor_epi32`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_xor_epi32&expand=5236)
* [x] [`_mm512_xor_epi64`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_xor_epi64&expand=5236)
* [x] [`_mm512_xor_si512`](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_xor_si512&expand=5236)
</p>
12 changes: 8 additions & 4 deletions crates/core_arch/src/aarch64/neon/mod.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,7 @@ extern "C" {
fn vpaddq_s32_(a: int32x4_t, b: int32x4_t) -> int32x4_t;
#[link_name = "llvm.aarch64.neon.addp.v16i8"]
fn vpaddq_s8_(a: int8x16_t, b: int8x16_t) -> int8x16_t;

#[link_name = "llvm.aarch64.neon.saddv.i32.v4i16"]
fn vaddv_s16_(a: int16x4_t) -> i16;
#[link_name = "llvm.aarch64.neon.saddv.i32.v2i32"]
Expand Down Expand Up @@ -1826,9 +1826,13 @@ mod tests {
#[simd_test(enable = "neon")]
unsafe fn test_vpaddq_s8() {
let a = i8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
let b = i8x16::new(0, -1, -2, -3, -4, -5, -6, -7, -8, -8, -10, -11, -12, -13, -14, -15);
let b = i8x16::new(
0, -1, -2, -3, -4, -5, -6, -7, -8, -8, -10, -11, -12, -13, -14, -15,
);
let r: i8x16 = transmute(vpaddq_s8(transmute(a), transmute(b)));
let e = i8x16::new(3, 7, 11, 15, 19, 23, 27, 31, -1, -5, -9, -13, -16, -21, -25, -29);
let e = i8x16::new(
3, 7, 11, 15, 19, 23, 27, 31, -1, -5, -9, -13, -16, -21, -25, -29,
);
assert_eq!(r, e);
}
#[simd_test(enable = "neon")]
Expand Down Expand Up @@ -2829,7 +2833,7 @@ mod tests {
let e = i64x2::new(i64::MIN, i64::MAX);
assert_eq!(r, e);
}

#[simd_test(enable = "neon")]
unsafe fn test_vaddv_s16() {
let a = i16x4::new(1, 2, 3, -4);
Expand Down
10 changes: 5 additions & 5 deletions crates/core_arch/src/arm/neon/mod.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -175,7 +175,7 @@ extern "C" {
#[cfg_attr(target_arch = "arm", link_name = "llvm.arm.neon.vpmaxs.v2f32")]
#[cfg_attr(target_arch = "aarch64", link_name = "llvm.aarch64.neon.fmaxp.v2f32")]
fn vpmaxf_v2f32(a: float32x2_t, b: float32x2_t) -> float32x2_t;

#[cfg_attr(target_arch = "arm", link_name = "llvm.arm.neon.vpadd.v4i16")]
#[cfg_attr(target_arch = "aarch64", link_name = "llvm.aarch64.neon.addp.v4i16")]
fn vpadd_s16_(a: int16x4_t, b: int16x4_t) -> int16x4_t;
Expand Down Expand Up @@ -299,7 +299,7 @@ pub unsafe fn vpadd_s32(a: int32x2_t, b: int32x2_t) -> int32x2_t {
#[cfg_attr(all(test, target_arch = "arm"), assert_instr(vpadd))]
#[cfg_attr(all(test, target_arch = "aarch64"), assert_instr(addp))]
pub unsafe fn vpadd_s8(a: int8x8_t, b: int8x8_t) -> int8x8_t {
vpadd_s8_(a,b)
vpadd_s8_(a, b)
}
/// Add pairwise.
#[inline]
Expand All @@ -308,7 +308,7 @@ pub unsafe fn vpadd_s8(a: int8x8_t, b: int8x8_t) -> int8x8_t {
#[cfg_attr(all(test, target_arch = "arm"), assert_instr(vpadd))]
#[cfg_attr(all(test, target_arch = "aarch64"), assert_instr(addp))]
pub unsafe fn vpadd_u16(a: uint16x4_t, b: uint16x4_t) -> uint16x4_t {
transmute(vpadd_s16_(transmute(a),transmute(b)))
transmute(vpadd_s16_(transmute(a), transmute(b)))
}
/// Add pairwise.
#[inline]
Expand All @@ -317,7 +317,7 @@ pub unsafe fn vpadd_u16(a: uint16x4_t, b: uint16x4_t) -> uint16x4_t {
#[cfg_attr(all(test, target_arch = "arm"), assert_instr(vpadd))]
#[cfg_attr(all(test, target_arch = "aarch64"), assert_instr(addp))]
pub unsafe fn vpadd_u32(a: uint32x2_t, b: uint32x2_t) -> uint32x2_t {
transmute(vpadd_s32_(transmute(a),transmute(b)))
transmute(vpadd_s32_(transmute(a), transmute(b)))
}
/// Add pairwise.
#[inline]
Expand All @@ -326,7 +326,7 @@ pub unsafe fn vpadd_u32(a: uint32x2_t, b: uint32x2_t) -> uint32x2_t {
#[cfg_attr(all(test, target_arch = "arm"), assert_instr(vpadd))]
#[cfg_attr(all(test, target_arch = "aarch64"), assert_instr(addp))]
pub unsafe fn vpadd_u8(a: uint8x8_t, b: uint8x8_t) -> uint8x8_t {
transmute(vpadd_s8_(transmute(a),transmute(b)))
transmute(vpadd_s8_(transmute(a), transmute(b)))
}

/// Unsigned saturating extract narrow.
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