191 lines
6.0 KiB
C
191 lines
6.0 KiB
C
/* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Copyright:
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* 2020 Evan Nemerson <evan@nemerson.com>
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* 2020 Sean Maher <seanptmaher@gmail.com> (Copyright owned by Google, LLC)
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*/
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#if !defined(SIMDE_ARM_NEON_QRDMULH_H)
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#define SIMDE_ARM_NEON_QRDMULH_H
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#include "types.h"
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HEDLEY_DIAGNOSTIC_PUSH
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SIMDE_DISABLE_UNWANTED_DIAGNOSTICS
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SIMDE_BEGIN_DECLS_
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SIMDE_FUNCTION_ATTRIBUTES
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int16_t
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simde_vqrdmulhh_s16(int16_t a, int16_t b) {
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#if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
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return vqrdmulhh_s16(a, b);
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#else
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return HEDLEY_STATIC_CAST(int16_t, (((1 << 15) + ((HEDLEY_STATIC_CAST(int32_t, (HEDLEY_STATIC_CAST(int32_t, a) * HEDLEY_STATIC_CAST(int32_t, b)))) << 1)) >> 16) & 0xffff);
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#endif
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}
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#if defined(SIMDE_ARM_NEON_A64V8_ENABLE_NATIVE_ALIASES)
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#undef vqrdmulhh_s16
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#define vqrdmulhh_s16(a, b) simde_vqrdmulhh_s16((a), (b))
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#endif
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SIMDE_FUNCTION_ATTRIBUTES
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int32_t
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simde_vqrdmulhs_s32(int32_t a, int32_t b) {
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#if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
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return vqrdmulhs_s32(a, b);
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#else
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return HEDLEY_STATIC_CAST(int32_t, (((HEDLEY_STATIC_CAST(int64_t, 1) << 31) + ((HEDLEY_STATIC_CAST(int64_t, (HEDLEY_STATIC_CAST(int64_t, a) * HEDLEY_STATIC_CAST(int64_t, b)))) << 1)) >> 32) & 0xffffffff);
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#endif
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}
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#if defined(SIMDE_ARM_NEON_A64V8_ENABLE_NATIVE_ALIASES)
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#undef vqrdmulhs_s32
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#define vqrdmulhs_s32(a, b) simde_vqrdmulhs_s32((a), (b))
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#endif
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SIMDE_FUNCTION_ATTRIBUTES
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simde_int16x4_t
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simde_vqrdmulh_s16(simde_int16x4_t a, simde_int16x4_t b) {
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#if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
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return vqrdmulh_s16(a, b);
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#else
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simde_int16x4_private
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r_,
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a_ = simde_int16x4_to_private(a),
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b_ = simde_int16x4_to_private(b);
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SIMDE_VECTORIZE
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for (size_t i = 0 ; i < (sizeof(r_.values) / sizeof(r_.values[0])) ; i++) {
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r_.values[i] = simde_vqrdmulhh_s16(a_.values[i], b_.values[i]);
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}
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return simde_int16x4_from_private(r_);
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#endif
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}
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#if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
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#undef vqrdmulh_s16
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#define vqrdmulh_s16(a, b) simde_vqrdmulh_s16((a), (b))
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#endif
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SIMDE_FUNCTION_ATTRIBUTES
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simde_int32x2_t
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simde_vqrdmulh_s32(simde_int32x2_t a, simde_int32x2_t b) {
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#if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
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return vqrdmulh_s32(a, b);
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#else
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simde_int32x2_private
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r_,
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a_ = simde_int32x2_to_private(a),
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b_ = simde_int32x2_to_private(b);
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SIMDE_VECTORIZE
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for (size_t i = 0 ; i < (sizeof(r_.values) / sizeof(r_.values[0])) ; i++) {
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r_.values[i] = simde_vqrdmulhs_s32(a_.values[i], b_.values[i]);
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}
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return simde_int32x2_from_private(r_);
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#endif
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}
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#if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
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#undef vqrdmulh_s32
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#define vqrdmulh_s32(a, b) simde_vqrdmulh_s32((a), (b))
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#endif
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SIMDE_FUNCTION_ATTRIBUTES
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simde_int16x8_t
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simde_vqrdmulhq_s16(simde_int16x8_t a, simde_int16x8_t b) {
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#if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
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return vqrdmulhq_s16(a, b);
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#else
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simde_int16x8_private
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r_,
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a_ = simde_int16x8_to_private(a),
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b_ = simde_int16x8_to_private(b);
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/* https://github.com/WebAssembly/simd/pull/365 */
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#if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
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r_.neon_i16 = vqrdmulhq_s16(a_.neon_i16, b_.neon_i16);
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#elif defined(SIMDE_X86_SSSE3_NATIVE)
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__m128i y = _mm_mulhrs_epi16(a_.m128i, b_.m128i);
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__m128i tmp = _mm_cmpeq_epi16(y, _mm_set1_epi16(INT16_MAX));
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r_.m128i = _mm_xor_si128(y, tmp);
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#elif defined(SIMDE_X86_SSE2_NATIVE)
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const __m128i prod_lo = _mm_mullo_epi16(a_.m128i, b_.m128i);
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const __m128i prod_hi = _mm_mulhi_epi16(a_.m128i, b_.m128i);
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const __m128i tmp =
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_mm_add_epi16(
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_mm_avg_epu16(
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_mm_srli_epi16(prod_lo, 14),
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_mm_setzero_si128()
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),
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_mm_add_epi16(prod_hi, prod_hi)
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);
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r_.m128i =
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_mm_xor_si128(
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tmp,
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_mm_cmpeq_epi16(_mm_set1_epi16(INT16_MAX), tmp)
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);
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#else
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SIMDE_VECTORIZE
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for (size_t i = 0 ; i < (sizeof(r_.values) / sizeof(r_.values[0])) ; i++) {
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r_.values[i] = simde_vqrdmulhh_s16(a_.values[i], b_.values[i]);
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}
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#endif
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return simde_int16x8_from_private(r_);
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#endif
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}
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#if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
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#undef vqrdmulhq_s16
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#define vqrdmulhq_s16(a, b) simde_vqrdmulhq_s16((a), (b))
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#endif
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SIMDE_FUNCTION_ATTRIBUTES
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simde_int32x4_t
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simde_vqrdmulhq_s32(simde_int32x4_t a, simde_int32x4_t b) {
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#if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
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return vqrdmulhq_s32(a, b);
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#else
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simde_int32x4_private
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r_,
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a_ = simde_int32x4_to_private(a),
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b_ = simde_int32x4_to_private(b);
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SIMDE_VECTORIZE
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for (size_t i = 0 ; i < (sizeof(r_.values) / sizeof(r_.values[0])) ; i++) {
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r_.values[i] = simde_vqrdmulhs_s32(a_.values[i], b_.values[i]);
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}
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return simde_int32x4_from_private(r_);
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#endif
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}
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#if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
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#undef vqrdmulhq_s32
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#define vqrdmulhq_s32(a, b) simde_vqrdmulhq_s32((a), (b))
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#endif
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SIMDE_END_DECLS_
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HEDLEY_DIAGNOSTIC_POP
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#endif /* !defined(SIMDE_ARM_NEON_QRDMULH_H) */
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