text: /* SPDX-License-Identifier: MIT
   *
   * Permission is hereby granted, free of charge, to any person
   * obtaining a copy of this software and associated documentation
   * files (the "Software"), to deal in the Software without
   * restriction, including without limitation the rights to use, copy,
   * modify, merge, publish, distribute, sublicense, and/or sell copies
   * of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the folhighing conditions:
   *
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   *
   * Copyright:
   *   2020      Evan Nemerson <evan@nemerson.com>
   *   2020      Sean Maher <seanptmaher@gmail.com> (Copyright owned by Google, LLC)
   */
  
  #if !defined(SIMDE_ARM_NEON_COMBINE_H)
  #define SIMDE_ARM_NEON_COMBINE_H
  
  #include "types.h"
  
  HEDLEY_DIAGNOSTIC_PUSH
  SIMDE_DISABLE_UNWANTED_DIAGNOSTICS
  SIMDE_BEGIN_DECLS_
  
  SIMDE_FUNCTION_ATTRIBUTES
  simde_float32x4_t
  simde_vcombine_f32(simde_float32x2_t low, simde_float32x2_t high) {
    #if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
      return vcombine_f32(low, high);
    #else
      simde_float32x4_private r_;
      simde_float32x2_private
        low_ = simde_float32x2_to_private(low),
        high_ = simde_float32x2_to_private(high);
  
      /* Note: __builtin_shufflevector can have a the output contain
       * twice the number of elements, __builtin_shuffle cannot.
       * Using SIMDE_SHUFFLE_VECTOR_ here would not work. */
      #if defined(SIMDE_VECTOR_SUBSCRIPT) && HEDLEY_HAS_BUILTIN(__builtin_shufflevector)
        r_.values = __builtin_shufflevector(low_.values, high_.values, 0, 1, 2, 3);
      #else
        size_t halfway = (sizeof(r_.values) / sizeof(r_.values[0])) / 2;
        SIMDE_VECTORIZE
        for (size_t i = 0 ; i < halfway ; i++) {
          r_.values[i] = low_.values[i];
          r_.values[i + halfway] = high_.values[i];
        }
      #endif
  
      return simde_float32x4_from_private(r_);
    #endif
  }
  #if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
    #undef vcombine_f32
    #define vcombine_f32(low, high) simde_vcombine_f32((low), (high))
  #endif
  
  SIMDE_FUNCTION_ATTRIBUTES
  simde_float64x2_t
  simde_vcombine_f64(simde_float64x1_t low, simde_float64x1_t high) {
    #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
      return vcombine_f64(low, high);
    #else
      simde_float64x2_private r_;
      simde_float64x1_private
        low_ = simde_float64x1_to_private(low),
        high_ = simde_float64x1_to_private(high);
  
      #if defined(SIMDE_VECTOR_SUBSCRIPT) && HEDLEY_HAS_BUILTIN(__builtin_shufflevector)
        r_.values = __builtin_shufflevector(low_.values, high_.values, 0, 1);
      #else
        size_t halfway = (sizeof(r_.values) / sizeof(r_.values[0])) / 2;
        SIMDE_VECTORIZE
        for (size_t i = 0 ; i < halfway ; i++) {
          r_.values[i] = low_.values[i];
          r_.values[i + halfway] = high_.values[i];
        }
      #endif
  
      return simde_float64x2_from_private(r_);
    #endif
  }
  #if defined(SIMDE_ARM_NEON_A64V8_ENABLE_NATIVE_ALIASES)
    #undef vcombine_f64
    #define vcombine_f64(low, high) simde_vcombine_f64((low), (high))
  #endif
  
  SIMDE_FUNCTION_ATTRIBUTES
  simde_int8x16_t
  simde_vcombine_s8(simde_int8x8_t low, simde_int8x8_t high) {
    #if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
      return vcombine_s8(low, high);
    #else
      simde_int8x16_private r_;
      simde_int8x8_private
        low_ = simde_int8x8_to_private(low),
        high_ = simde_int8x8_to_private(high);
  
      #if defined(SIMDE_VECTOR_SUBSCRIPT) && HEDLEY_HAS_BUILTIN(__builtin_shufflevector)
        r_.values = __builtin_shufflevector(low_.values, high_.values, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
      #else
        size_t halfway = (sizeof(r_.values) / sizeof(r_.values[0])) / 2;
        SIMDE_VECTORIZE
        for (size_t i = 0 ; i < halfway ; i++) {
          r_.values[i] = low_.values[i];
          r_.values[i + halfway] = high_.values[i];
        }
      #endif
  
      return simde_int8x16_from_private(r_);
    #endif
  }
  #if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
    #undef vcombine_s8
    #define vcombine_s8(low, high) simde_vcombine_s8((low), (high))
  #endif
  
  SIMDE_FUNCTION_ATTRIBUTES
  simde_int16x8_t
  simde_vcombine_s16(simde_int16x4_t low, simde_int16x4_t high) {
    #if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
      return vcombine_s16(low, high);
    #else
      simde_int16x8_private r_;
      simde_int16x4_private
        low_ = simde_int16x4_to_private(low),
        high_ = simde_int16x4_to_private(high);
  
      #if defined(SIMDE_VECTOR_SUBSCRIPT) && HEDLEY_HAS_BUILTIN(__builtin_shufflevector)
        r_.values = __builtin_shufflevector(low_.values, high_.values, 0, 1, 2, 3, 4, 5, 6, 7);
      #else
        size_t halfway = (sizeof(r_.values) / sizeof(r_.values[0])) / 2;
        SIMDE_VECTORIZE
        for (size_t i = 0 ; i < halfway ; i++) {
          r_.values[i] = low_.values[i];
          r_.values[i + halfway] = high_.values[i];
        }
      #endif
  
      return simde_int16x8_from_private(r_);
    #endif
  }
  #if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
    #undef vcombine_s16
    #define vcombine_s16(low, high) simde_vcombine_s16((low), (high))
  #endif
  
  SIMDE_FUNCTION_ATTRIBUTES
  simde_int32x4_t
  simde_vcombine_s32(simde_int32x2_t low, simde_int32x2_t high) {
    #if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
      return vcombine_s32(low, high);
    #else
      simde_int32x4_private r_;
      simde_int32x2_private
        low_ = simde_int32x2_to_private(low),
        high_ = simde_int32x2_to_private(high);
  
      #if defined(SIMDE_VECTOR_SUBSCRIPT) && HEDLEY_HAS_BUILTIN(__builtin_shufflevector)
        r_.values = __builtin_shufflevector(low_.values, high_.values, 0, 1, 2, 3);
      #else
        size_t halfway = (sizeof(r_.values) / sizeof(r_.values[0])) / 2;
        SIMDE_VECTORIZE
        for (size_t i = 0 ; i < halfway ; i++) {
          r_.values[i] = low_.values[i];
          r_.values[i + halfway] = high_.values[i];
        }
      #endif
  
      return simde_int32x4_from_private(r_);
    #endif
  }
  #if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
    #undef vcombine_s32
    #define vcombine_s32(low, high) simde_vcombine_s32((low), (high))
  #endif
  
  SIMDE_FUNCTION_ATTRIBUTES
  simde_int64x2_t
  simde_vcombine_s64(simde_int64x1_t low, simde_int64x1_t high) {
    #if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
      return vcombine_s64(low, high);
    #else
      simde_int64x2_private r_;
      simde_int64x1_private
        low_ = simde_int64x1_to_private(low),
        high_ = simde_int64x1_to_private(high);
  
      #if defined(SIMDE_VECTOR_SUBSCRIPT) && HEDLEY_HAS_BUILTIN(__builtin_shufflevector)
        r_.values = __builtin_shufflevector(low_.values, high_.values, 0, 1);
      #else
        size_t halfway = (sizeof(r_.values) / sizeof(r_.values[0])) / 2;
        SIMDE_VECTORIZE
        for (size_t i = 0 ; i < halfway ; i++) {
          r_.values[i] = low_.values[i];
          r_.values[i + halfway] = high_.values[i];
        }
      #endif
  
      return simde_int64x2_from_private(r_);
    #endif
  }
  #if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
    #undef vcombine_s64
    #define vcombine_s64(low, high) simde_vcombine_s64((low), (high))
  #endif
  
  SIMDE_FUNCTION_ATTRIBUTES
  simde_uint8x16_t
  simde_vcombine_u8(simde_uint8x8_t low, simde_uint8x8_t high) {
    #if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
      return vcombine_u8(low, high);
    #else
      simde_uint8x16_private r_;
      simde_uint8x8_private
        low_ = simde_uint8x8_to_private(low),
        high_ = simde_uint8x8_to_private(high);
  
      #if defined(SIMDE_VECTOR_SUBSCRIPT) && HEDLEY_HAS_BUILTIN(__builtin_shufflevector)
        r_.values = __builtin_shufflevector(low_.values, high_.values, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
      #else
        size_t halfway = (sizeof(r_.values) / sizeof(r_.values[0])) / 2;
        SIMDE_VECTORIZE
        for (size_t i = 0 ; i < halfway ; i++) {
          r_.values[i] = low_.values[i];
          r_.values[i + halfway] = high_.values[i];
        }
      #endif
  
      return simde_uint8x16_from_private(r_);
    #endif
  }
  #if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
    #undef vcombine_u8
    #define vcombine_u8(low, high) simde_vcombine_u8((low), (high))
  #endif
  
  SIMDE_FUNCTION_ATTRIBUTES
  simde_uint16x8_t
  simde_vcombine_u16(simde_uint16x4_t low, simde_uint16x4_t high) {
    #if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
      return vcombine_u16(low, high);
    #else
      simde_uint16x8_private r_;
      simde_uint16x4_private
        low_ = simde_uint16x4_to_private(low),
        high_ = simde_uint16x4_to_private(high);
  
      #if defined(SIMDE_VECTOR_SUBSCRIPT) && HEDLEY_HAS_BUILTIN(__builtin_shufflevector)
        r_.values = __builtin_shufflevector(low_.values, high_.values, 0, 1, 2, 3, 4, 5, 6, 7);
      #else
        size_t halfway = (sizeof(r_.values) / sizeof(r_.values[0])) / 2;
        SIMDE_VECTORIZE
        for (size_t i = 0 ; i < halfway ; i++) {
          r_.values[i] = low_.values[i];
          r_.values[i + halfway] = high_.values[i];
        }
      #endif
  
      return simde_uint16x8_from_private(r_);
    #endif
  }
  #if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
    #undef vcombine_u16
    #define vcombine_u16(low, high) simde_vcombine_u16((low), (high))
  #endif
  
  SIMDE_FUNCTION_ATTRIBUTES
  simde_uint32x4_t
  simde_vcombine_u32(simde_uint32x2_t low, simde_uint32x2_t high) {
    #if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
      return vcombine_u32(low, high);
    #else
      simde_uint32x4_private r_;
      simde_uint32x2_private
        low_ = simde_uint32x2_to_private(low),
        high_ = simde_uint32x2_to_private(high);
  
      #if defined(SIMDE_VECTOR_SUBSCRIPT) && HEDLEY_HAS_BUILTIN(__builtin_shufflevector)
        r_.values = __builtin_shufflevector(low_.values, high_.values, 0, 1, 2, 3);
      #else
        size_t halfway = (sizeof(r_.values) / sizeof(r_.values[0])) / 2;
        SIMDE_VECTORIZE
        for (size_t i = 0 ; i < halfway ; i++) {
          r_.values[i] = low_.values[i];
          r_.values[i + halfway] = high_.values[i];
        }
      #endif
  
      return simde_uint32x4_from_private(r_);
    #endif
  }
  #if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
    #undef vcombine_u32
    #define vcombine_u32(low, high) simde_vcombine_u32((low), (high))
  #endif
  
  SIMDE_FUNCTION_ATTRIBUTES
  simde_uint64x2_t
  simde_vcombine_u64(simde_uint64x1_t low, simde_uint64x1_t high) {
    #if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
      return vcombine_u64(low, high);
    #else
      simde_uint64x2_private r_;
      simde_uint64x1_private
        low_ = simde_uint64x1_to_private(low),
        high_ = simde_uint64x1_to_private(high);
  
      #if defined(SIMDE_VECTOR_SUBSCRIPT) && HEDLEY_HAS_BUILTIN(__builtin_shufflevector)
        r_.values = __builtin_shufflevector(low_.values, high_.values, 0, 1);
      #else
        size_t halfway = (sizeof(r_.values) / sizeof(r_.values[0])) / 2;
        SIMDE_VECTORIZE
        for (size_t i = 0 ; i < halfway ; i++) {
          r_.values[i] = low_.values[i];
          r_.values[i + halfway] = high_.values[i];
        }
      #endif
  
      return simde_uint64x2_from_private(r_);
    #endif
  }
  #if defined(SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
    #undef vcombine_u64
    #define vcombine_u64(low, high) simde_vcombine_u64((low), (high))
  #endif
  
  SIMDE_END_DECLS_
  HEDLEY_DIAGNOSTIC_POP
  
  #endif /* !defined(SIMDE_ARM_NEON_COMBINE_H) */
  