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The JUCE cross-platform C++ framework, with DISTRHO/KXStudio specific changes
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JUCE/modules/juce_dsp/native/juce_neon_SIMDNativeOps.h

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  1. /*

  2.   ==============================================================================

  3. 

  4.    This file is part of the JUCE library.

  5.    Copyright (c) 2017 - ROLI Ltd.

  6. 

  7.    JUCE is an open source library subject to commercial or open-source

  8.    licensing.

  9. 

  10.    By using JUCE, you agree to the terms of both the JUCE 5 End-User License

  11.    Agreement and JUCE 5 Privacy Policy (both updated and effective as of the

  12.    27th April 2017).

  13. 

  14.    End User License Agreement: www.juce.com/juce-5-licence

  15.    Privacy Policy: www.juce.com/juce-5-privacy-policy

  16. 

  17.    Or: You may also use this code under the terms of the GPL v3 (see

  18.    www.gnu.org/licenses).

  19. 

  20.    JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER

  21.    EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE

  22.    DISCLAIMED.

  23. 

  24.   ==============================================================================

  25. */

  26. 

  27. namespace juce

  28. {

  29. namespace dsp

  30. {

  31. 

  32. #ifndef DOXYGEN

  33. 

  34. #if JUCE_GCC && (__GNUC__ >= 6)

  35.  #pragma GCC diagnostic push

  36.  #pragma GCC diagnostic ignored "-Wignored-attributes"

  37. #endif

  38. 

  39. #ifdef _MSC_VER

  40.  #define DECLARE_NEON_SIMD_CONST(type, name) \

  41.     static __declspec(align(16)) const type name [16 / sizeof (type)]

  42. 

  43.  #define DEFINE_NEON_SIMD_CONST(type, class_type, name) \

  44.     __declspec(align(16)) const type SIMDNativeOps<class_type>:: name [16 / sizeof (type)]

  45. 

  46. #else

  47.  #define DECLARE_NEON_SIMD_CONST(type, name) \

  48.     static const type name [16 / sizeof (type)] __attribute__((aligned(16)))

  49. 

  50.  #define DEFINE_NEON_SIMD_CONST(type, class_type, name) \

  51.     const type SIMDNativeOps<class_type>:: name [16 / sizeof (type)] __attribute__((aligned(16)))

  52. 

  53. #endif

  54. 

  55. template <typename type>

  56. struct SIMDNativeOps;

  57. 

  58. //==============================================================================

  59. /** Unsigned 32-bit integer NEON intrinsics.

  60. 

  61.     @tags{DSP}

  62. */

  63. template <>

  64. struct SIMDNativeOps<uint32_t>

  65. {

  66.     //==============================================================================

  67.     typedef uint32x4_t vSIMDType;

  68.     typedef SIMDFallbackOps<uint32_t, vSIMDType> fb;

  69. 

  70.     //==============================================================================

  71.     DECLARE_NEON_SIMD_CONST (uint32_t, kAllBitsSet);

  72. 

  73.     //==============================================================================

  74.     static forcedinline vSIMDType expand (uint32_t s) noexcept                                  { return vdupq_n_u32 (s); }

  75.     static forcedinline vSIMDType load (const uint32_t* a) noexcept                             { return vld1q_u32 (a); }

  76.     static forcedinline void store (vSIMDType value, uint32_t* a) noexcept                      { vst1q_u32 (a, value); }

  77.     static forcedinline uint32_t get (vSIMDType v, size_t i) noexcept                           { return v[i]; }

  78.     static forcedinline vSIMDType set (vSIMDType v, size_t i, uint32_t s) noexcept              { v[i] = s; return v; }

  79.     static forcedinline vSIMDType add (vSIMDType a, vSIMDType b) noexcept                       { return vaddq_u32 (a, b); }

  80.     static forcedinline vSIMDType sub (vSIMDType a, vSIMDType b) noexcept                       { return vsubq_u32 (a, b); }

  81.     static forcedinline vSIMDType mul (vSIMDType a, vSIMDType b) noexcept                       { return vmulq_u32 (a, b); }

  82.     static forcedinline vSIMDType bit_and (vSIMDType a, vSIMDType b) noexcept                   { return vandq_u32 (a, b); }

  83.     static forcedinline vSIMDType bit_or  (vSIMDType a, vSIMDType b) noexcept                   { return vorrq_u32  (a, b); }

  84.     static forcedinline vSIMDType bit_xor (vSIMDType a, vSIMDType b) noexcept                   { return veorq_u32 (a, b); }

  85.     static forcedinline vSIMDType bit_notand (vSIMDType a, vSIMDType b) noexcept                { return vbicq_u32 (b, a); }

  86.     static forcedinline vSIMDType bit_not (vSIMDType a) noexcept                                { return bit_notand (a, vld1q_u32 ((uint32_t*) kAllBitsSet)); }

  87.     static forcedinline vSIMDType min (vSIMDType a, vSIMDType b) noexcept                       { return vminq_u32 (a, b); }

  88.     static forcedinline vSIMDType max (vSIMDType a, vSIMDType b) noexcept                       { return vmaxq_u32 (a, b); }

  89.     static forcedinline vSIMDType equal (vSIMDType a, vSIMDType b) noexcept                     { return (vSIMDType) vceqq_u32 (a, b); }

  90.     static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept                  { return (sum (notEqual (a, b)) == 0); }

  91.     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept                  { return bit_not (equal (a, b)); }

  92.     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept               { return (vSIMDType) vcgtq_u32 (a, b); }

  93.     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept        { return (vSIMDType) vcgeq_u32 (a, b); }

  94.     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept  { return vmlaq_u32 (a, b, c); }

  95.     static forcedinline uint32_t sum (vSIMDType a) noexcept

  96.     {

  97.         auto rr = vadd_u32 (vget_high_u32 (a), vget_low_u32 (a));

  98.         return vget_lane_u32 (vpadd_u32 (rr, rr), 0);

  99.     }

  100. };

  101. 

  102. //==============================================================================

  103. /** Signed 32-bit integer NEON intrinsics.

  104. 

  105.     @tags{DSP}

  106. */

  107. template <>

  108. struct SIMDNativeOps<int32_t>

  109. {

  110.     //==============================================================================

  111.     typedef int32x4_t vSIMDType;

  112.     typedef SIMDFallbackOps<int32_t, vSIMDType> fb;

  113. 

  114.     //==============================================================================

  115.     DECLARE_NEON_SIMD_CONST (int32_t, kAllBitsSet);

  116. 

  117.     //==============================================================================

  118.     static forcedinline vSIMDType expand (int32_t s) noexcept                                   { return vdupq_n_s32 (s); }

  119.     static forcedinline vSIMDType load (const int32_t* a) noexcept                              { return vld1q_s32 (a); }

  120.     static forcedinline void store (vSIMDType value, int32_t* a) noexcept                       { vst1q_s32 (a, value); }

  121.     static forcedinline int32_t get (vSIMDType v, size_t i) noexcept                            { return v[i]; }

  122.     static forcedinline vSIMDType set (vSIMDType v, size_t i, int32_t s) noexcept               { v[i] = s; return v; }

  123.     static forcedinline vSIMDType add (vSIMDType a, vSIMDType b) noexcept                       { return vaddq_s32 (a, b); }

  124.     static forcedinline vSIMDType sub (vSIMDType a, vSIMDType b) noexcept                       { return vsubq_s32 (a, b); }

  125.     static forcedinline vSIMDType mul (vSIMDType a, vSIMDType b) noexcept                       { return vmulq_s32 (a, b); }

  126.     static forcedinline vSIMDType bit_and (vSIMDType a, vSIMDType b) noexcept                   { return vandq_s32 (a, b); }

  127.     static forcedinline vSIMDType bit_or  (vSIMDType a, vSIMDType b) noexcept                   { return vorrq_s32 (a, b); }

  128.     static forcedinline vSIMDType bit_xor (vSIMDType a, vSIMDType b) noexcept                   { return veorq_s32 (a, b); }

  129.     static forcedinline vSIMDType bit_notand (vSIMDType a, vSIMDType b) noexcept                { return vbicq_s32 (b, a); }

  130.     static forcedinline vSIMDType bit_not (vSIMDType a) noexcept                                { return bit_notand (a, vld1q_s32 ((int32_t*) kAllBitsSet)); }

  131.     static forcedinline vSIMDType min (vSIMDType a, vSIMDType b) noexcept                       { return vminq_s32 (a, b); }

  132.     static forcedinline vSIMDType max (vSIMDType a, vSIMDType b) noexcept                       { return vmaxq_s32 (a, b); }

  133.     static forcedinline vSIMDType equal (vSIMDType a, vSIMDType b) noexcept                     { return (vSIMDType) vceqq_s32 (a, b); }

  134.     static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept                  { return (sum (notEqual (a, b)) == 0); }

  135.     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept                  { return bit_not (equal (a, b)); }

  136.     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept               { return (vSIMDType) vcgtq_s32 (a, b); }

  137.     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept        { return (vSIMDType) vcgeq_s32 (a, b); }

  138.     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept  { return vmlaq_s32 (a, b, c); }

  139.     static forcedinline int32_t sum (vSIMDType a) noexcept

  140.     {

  141.         auto rr = vadd_s32 (vget_high_s32 (a), vget_low_s32 (a));

  142.         rr = vpadd_s32 (rr, rr);

  143.         return vget_lane_s32 (rr, 0);

  144.     }

  145. };

  146. 

  147. //==============================================================================

  148. /** Signed 8-bit integer NEON intrinsics.

  149. 

  150.     @tags{DSP}

  151. */

  152. template <>

  153. struct SIMDNativeOps<int8_t>

  154. {

  155.     //==============================================================================

  156.     typedef int8x16_t vSIMDType;

  157.     typedef SIMDFallbackOps<int8_t, vSIMDType> fb;

  158. 

  159.     //==============================================================================

  160.     DECLARE_NEON_SIMD_CONST (int8_t, kAllBitsSet);

  161. 

  162.     //==============================================================================

  163.     static forcedinline vSIMDType expand (int8_t s) noexcept                                   { return vdupq_n_s8 (s); }

  164.     static forcedinline vSIMDType load (const int8_t* a) noexcept                              { return vld1q_s8 (a); }

  165.     static forcedinline void store (vSIMDType value, int8_t* a) noexcept                       { vst1q_s8 (a, value); }

  166.     static forcedinline int8_t get (vSIMDType v, size_t i) noexcept                            { return v[i]; }

  167.     static forcedinline vSIMDType set (vSIMDType v, size_t i, int8_t s) noexcept               { v[i] = s; return v; }

  168.     static forcedinline vSIMDType add (vSIMDType a, vSIMDType b) noexcept                      { return vaddq_s8 (a, b); }

  169.     static forcedinline vSIMDType sub (vSIMDType a, vSIMDType b) noexcept                      { return vsubq_s8 (a, b); }

  170.     static forcedinline vSIMDType mul (vSIMDType a, vSIMDType b) noexcept                      { return vmulq_s8 (a, b); }

  171.     static forcedinline vSIMDType bit_and (vSIMDType a, vSIMDType b) noexcept                  { return vandq_s8 (a, b); }

  172.     static forcedinline vSIMDType bit_or  (vSIMDType a, vSIMDType b) noexcept                  { return vorrq_s8 (a, b); }

  173.     static forcedinline vSIMDType bit_xor (vSIMDType a, vSIMDType b) noexcept                  { return veorq_s8 (a, b); }

  174.     static forcedinline vSIMDType bit_notand (vSIMDType a, vSIMDType b) noexcept               { return vbicq_s8 (b, a); }

  175.     static forcedinline vSIMDType bit_not (vSIMDType a) noexcept                               { return bit_notand (a, vld1q_s8 ((int8_t*) kAllBitsSet)); }

  176.     static forcedinline vSIMDType min (vSIMDType a, vSIMDType b) noexcept                      { return vminq_s8 (a, b); }

  177.     static forcedinline vSIMDType max (vSIMDType a, vSIMDType b) noexcept                      { return vmaxq_s8 (a, b); }

  178.     static forcedinline vSIMDType equal (vSIMDType a, vSIMDType b) noexcept                    { return (vSIMDType) vceqq_s8 (a, b); }

  179.     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept                 { return bit_not (equal (a, b)); }

  180.     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept              { return (vSIMDType) vcgtq_s8 (a, b); }

  181.     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept       { return (vSIMDType) vcgeq_s8 (a, b); }

  182.     static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept                 { return (SIMDNativeOps<int32_t>::sum ((SIMDNativeOps<int32_t>::vSIMDType) notEqual (a, b)) == 0); }

  183.     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept { return vmlaq_s8 (a, b, c); }

  184.     static forcedinline int8_t sum (vSIMDType a) noexcept                                      { return fb::sum (a); }

  185. };

  186. 

  187. //==============================================================================

  188. /** Unsigned 8-bit integer NEON intrinsics.

  189. 

  190.     @tags{DSP}

  191. */

  192. template <>

  193. struct SIMDNativeOps<uint8_t>

  194. {

  195.     //==============================================================================

  196.     typedef uint8x16_t vSIMDType;

  197.     typedef SIMDFallbackOps<uint8_t, vSIMDType> fb;

  198. 

  199.     //==============================================================================

  200.     DECLARE_NEON_SIMD_CONST (uint8_t, kAllBitsSet);

  201. 

  202.     //==============================================================================

  203.     static forcedinline vSIMDType expand (uint8_t s) noexcept                                  { return vdupq_n_u8 (s); }

  204.     static forcedinline vSIMDType load (const uint8_t* a) noexcept                             { return vld1q_u8 (a); }

  205.     static forcedinline void store (vSIMDType value, uint8_t* a) noexcept                      { vst1q_u8 (a, value); }

  206.     static forcedinline uint8_t get (vSIMDType v, size_t i) noexcept                           { return v[i]; }

  207.     static forcedinline vSIMDType set (vSIMDType v, size_t i, uint8_t s) noexcept              { v[i] = s; return v; }

  208.     static forcedinline vSIMDType add (vSIMDType a, vSIMDType b) noexcept                      { return vaddq_u8 (a, b); }

  209.     static forcedinline vSIMDType sub (vSIMDType a, vSIMDType b) noexcept                      { return vsubq_u8 (a, b); }

  210.     static forcedinline vSIMDType mul (vSIMDType a, vSIMDType b) noexcept                      { return vmulq_u8 (a, b); }

  211.     static forcedinline vSIMDType bit_and (vSIMDType a, vSIMDType b) noexcept                  { return vandq_u8 (a, b); }

  212.     static forcedinline vSIMDType bit_or  (vSIMDType a, vSIMDType b) noexcept                  { return vorrq_u8 (a, b); }

  213.     static forcedinline vSIMDType bit_xor (vSIMDType a, vSIMDType b) noexcept                  { return veorq_u8 (a, b); }

  214.     static forcedinline vSIMDType bit_notand (vSIMDType a, vSIMDType b) noexcept               { return vbicq_u8 (b, a); }

  215.     static forcedinline vSIMDType bit_not (vSIMDType a) noexcept                               { return bit_notand (a, vld1q_u8 ((uint8_t*) kAllBitsSet)); }

  216.     static forcedinline vSIMDType min (vSIMDType a, vSIMDType b) noexcept                      { return vminq_u8 (a, b); }

  217.     static forcedinline vSIMDType max (vSIMDType a, vSIMDType b) noexcept                      { return vmaxq_u8 (a, b); }

  218.     static forcedinline vSIMDType equal (vSIMDType a, vSIMDType b) noexcept                    { return (vSIMDType) vceqq_u8 (a, b); }

  219.     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept                 { return bit_not (equal (a, b)); }

  220.     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept              { return (vSIMDType) vcgtq_u8 (a, b); }

  221.     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept       { return (vSIMDType) vcgeq_u8 (a, b); }

  222.     static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept                 { return (SIMDNativeOps<uint32_t>::sum ((SIMDNativeOps<uint32_t>::vSIMDType) notEqual (a, b)) == 0); }

  223.     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept { return vmlaq_u8 (a, b, c); }

  224.     static forcedinline uint8_t sum (vSIMDType a) noexcept                                     { return fb::sum (a); }

  225. };

  226. 

  227. //==============================================================================

  228. /** Signed 16-bit integer NEON intrinsics.

  229. 

  230.     @tags{DSP}

  231. */

  232. template <>

  233. struct SIMDNativeOps<int16_t>

  234. {

  235.     //==============================================================================

  236.     typedef int16x8_t vSIMDType;

  237.     typedef SIMDFallbackOps<int16_t, vSIMDType> fb;

  238. 

  239.     //==============================================================================

  240.     DECLARE_NEON_SIMD_CONST (int16_t, kAllBitsSet);

  241. 

  242.     //==============================================================================

  243.     static forcedinline vSIMDType expand (int16_t s) noexcept                                  { return vdupq_n_s16 (s); }

  244.     static forcedinline vSIMDType load (const int16_t* a) noexcept                             { return vld1q_s16 (a); }

  245.     static forcedinline void store (vSIMDType value, int16_t* a) noexcept                      { vst1q_s16 (a, value); }

  246.     static forcedinline int16_t get (vSIMDType v, size_t i) noexcept                           { return v[i]; }

  247.     static forcedinline vSIMDType set (vSIMDType v, size_t i, int16_t s) noexcept              { v[i] = s; return v; }

  248.     static forcedinline vSIMDType add (vSIMDType a, vSIMDType b) noexcept                      { return vaddq_s16 (a, b); }

  249.     static forcedinline vSIMDType sub (vSIMDType a, vSIMDType b) noexcept                      { return vsubq_s16 (a, b); }

  250.     static forcedinline vSIMDType mul (vSIMDType a, vSIMDType b) noexcept                      { return vmulq_s16 (a, b); }

  251.     static forcedinline vSIMDType bit_and (vSIMDType a, vSIMDType b) noexcept                  { return vandq_s16 (a, b); }

  252.     static forcedinline vSIMDType bit_or  (vSIMDType a, vSIMDType b) noexcept                  { return vorrq_s16 (a, b); }

  253.     static forcedinline vSIMDType bit_xor (vSIMDType a, vSIMDType b) noexcept                  { return veorq_s16 (a, b); }

  254.     static forcedinline vSIMDType bit_notand (vSIMDType a, vSIMDType b) noexcept               { return vbicq_s16 (b, a); }

  255.     static forcedinline vSIMDType bit_not (vSIMDType a) noexcept                               { return bit_notand (a, vld1q_s16 ((int16_t*) kAllBitsSet)); }

  256.     static forcedinline vSIMDType min (vSIMDType a, vSIMDType b) noexcept                      { return vminq_s16 (a, b); }

  257.     static forcedinline vSIMDType max (vSIMDType a, vSIMDType b) noexcept                      { return vmaxq_s16 (a, b); }

  258.     static forcedinline vSIMDType equal (vSIMDType a, vSIMDType b) noexcept                    { return (vSIMDType) vceqq_s16 (a, b); }

  259.     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept                 { return bit_not (equal (a, b)); }

  260.     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept              { return (vSIMDType) vcgtq_s16 (a, b); }

  261.     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept       { return (vSIMDType) vcgeq_s16 (a, b); }

  262.     static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept                 { return (SIMDNativeOps<int32_t>::sum ((SIMDNativeOps<int32_t>::vSIMDType) notEqual (a, b)) == 0); }

  263.     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept { return vmlaq_s16 (a, b, c); }

  264.     static forcedinline int16_t sum (vSIMDType a) noexcept                                     { return fb::sum (a); }

  265. };

  266. 

  267. 

  268. //==============================================================================

  269. /** Unsigned 16-bit integer NEON intrinsics.

  270. 

  271.     @tags{DSP}

  272. */

  273. template <>

  274. struct SIMDNativeOps<uint16_t>

  275. {

  276.     //==============================================================================

  277.     typedef uint16x8_t vSIMDType;

  278.     typedef SIMDFallbackOps<uint16_t, vSIMDType> fb;

  279. 

  280.     //==============================================================================

  281.     DECLARE_NEON_SIMD_CONST (uint16_t, kAllBitsSet);

  282. 

  283.     //==============================================================================

  284.     static forcedinline vSIMDType expand (uint16_t s) noexcept                                 { return vdupq_n_u16 (s); }

  285.     static forcedinline vSIMDType load (const uint16_t* a) noexcept                            { return vld1q_u16 (a); }

  286.     static forcedinline void store (vSIMDType value, uint16_t* a) noexcept                     { vst1q_u16 (a, value); }

  287.     static forcedinline uint16_t get (vSIMDType v, size_t i) noexcept                          { return v[i]; }

  288.     static forcedinline vSIMDType set (vSIMDType v, size_t i, uint16_t s) noexcept             { v[i] = s; return v; }

  289.     static forcedinline vSIMDType add (vSIMDType a, vSIMDType b) noexcept                      { return vaddq_u16 (a, b); }

  290.     static forcedinline vSIMDType sub (vSIMDType a, vSIMDType b) noexcept                      { return vsubq_u16 (a, b); }

  291.     static forcedinline vSIMDType mul (vSIMDType a, vSIMDType b) noexcept                      { return vmulq_u16 (a, b); }

  292.     static forcedinline vSIMDType bit_and (vSIMDType a, vSIMDType b) noexcept                  { return vandq_u16 (a, b); }

  293.     static forcedinline vSIMDType bit_or  (vSIMDType a, vSIMDType b) noexcept                  { return vorrq_u16 (a, b); }

  294.     static forcedinline vSIMDType bit_xor (vSIMDType a, vSIMDType b) noexcept                  { return veorq_u16 (a, b); }

  295.     static forcedinline vSIMDType bit_notand (vSIMDType a, vSIMDType b) noexcept               { return vbicq_u16 (b, a); }

  296.     static forcedinline vSIMDType bit_not (vSIMDType a) noexcept                               { return bit_notand (a, vld1q_u16 ((uint16_t*) kAllBitsSet)); }

  297.     static forcedinline vSIMDType min (vSIMDType a, vSIMDType b) noexcept                      { return vminq_u16 (a, b); }

  298.     static forcedinline vSIMDType max (vSIMDType a, vSIMDType b) noexcept                      { return vmaxq_u16 (a, b); }

  299.     static forcedinline vSIMDType equal (vSIMDType a, vSIMDType b) noexcept                    { return (vSIMDType) vceqq_u16 (a, b); }

  300.     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept                 { return bit_not (equal (a, b)); }

  301.     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept              { return (vSIMDType) vcgtq_u16 (a, b); }

  302.     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept       { return (vSIMDType) vcgeq_u16 (a, b); }

  303.     static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept                 { return (SIMDNativeOps<uint32_t>::sum ((SIMDNativeOps<uint32_t>::vSIMDType) notEqual (a, b)) == 0); }

  304.     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept { return vmlaq_u16 (a, b, c); }

  305.     static forcedinline uint16_t sum (vSIMDType a) noexcept                                    { return fb::sum (a); }

  306. };

  307. 

  308. //==============================================================================

  309. /** Signed 64-bit integer NEON intrinsics.

  310. 

  311.     @tags{DSP}

  312. */

  313. template <>

  314. struct SIMDNativeOps<int64_t>

  315. {

  316.     //==============================================================================

  317.     typedef int64x2_t vSIMDType;

  318.     typedef SIMDFallbackOps<int64_t, vSIMDType> fb;

  319. 

  320.     //==============================================================================

  321.     DECLARE_NEON_SIMD_CONST (int64_t, kAllBitsSet);

  322. 

  323.     //==============================================================================

  324.     static forcedinline vSIMDType expand (int64_t s) noexcept                                  { return vdupq_n_s64 (s); }

  325.     static forcedinline vSIMDType load (const int64_t* a) noexcept                             { return vld1q_s64 (a); }

  326.     static forcedinline void store (vSIMDType value, int64_t* a) noexcept                      { vst1q_s64 (a, value); }

  327.     static forcedinline int64_t get (vSIMDType v, size_t i) noexcept                           { return v[i]; }

  328.     static forcedinline vSIMDType set (vSIMDType v, size_t i, int64_t s) noexcept              { v[i] = s; return v; }

  329.     static forcedinline vSIMDType add (vSIMDType a, vSIMDType b) noexcept                      { return vaddq_s64 (a, b); }

  330.     static forcedinline vSIMDType sub (vSIMDType a, vSIMDType b) noexcept                      { return vsubq_s64 (a, b); }

  331.     static forcedinline vSIMDType mul (vSIMDType a, vSIMDType b) noexcept                      { return fb::mul (a, b); }

  332.     static forcedinline vSIMDType bit_and (vSIMDType a, vSIMDType b) noexcept                  { return vandq_s64 (a, b); }

  333.     static forcedinline vSIMDType bit_or  (vSIMDType a, vSIMDType b) noexcept                  { return vorrq_s64 (a, b); }

  334.     static forcedinline vSIMDType bit_xor (vSIMDType a, vSIMDType b) noexcept                  { return veorq_s64 (a, b); }

  335.     static forcedinline vSIMDType bit_notand (vSIMDType a, vSIMDType b) noexcept               { return vbicq_s64 (b, a); }

  336.     static forcedinline vSIMDType bit_not (vSIMDType a) noexcept                               { return bit_notand (a, vld1q_s64 ((int64_t*) kAllBitsSet)); }

  337.     static forcedinline vSIMDType min (vSIMDType a, vSIMDType b) noexcept                      { return fb::min (a, b); }

  338.     static forcedinline vSIMDType max (vSIMDType a, vSIMDType b) noexcept                      { return fb::max (a, b); }

  339.     static forcedinline vSIMDType equal (vSIMDType a, vSIMDType b) noexcept                    { return fb::equal (a, b); }

  340.     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept                 { return fb::notEqual (a, b); }

  341.     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept              { return fb::greaterThan (a, b); }

  342.     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept       { return fb::greaterThanOrEqual (a, b); }

  343.     static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept                 { return (SIMDNativeOps<int32_t>::sum ((SIMDNativeOps<int32_t>::vSIMDType) notEqual (a, b)) == 0); }

  344.     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept { return fb::multiplyAdd (a, b, c); }

  345.     static forcedinline int64_t sum (vSIMDType a) noexcept                                     { return fb::sum (a); }

  346. };

  347. 

  348. 

  349. //==============================================================================

  350. /** Unsigned 64-bit integer NEON intrinsics.

  351. 

  352.     @tags{DSP}

  353. */

  354. template <>

  355. struct SIMDNativeOps<uint64_t>

  356. {

  357.     //==============================================================================

  358.     typedef uint64x2_t vSIMDType;

  359.     typedef SIMDFallbackOps<uint64_t, vSIMDType> fb;

  360. 

  361.     //==============================================================================

  362.     DECLARE_NEON_SIMD_CONST (uint64_t, kAllBitsSet);

  363. 

  364.     //==============================================================================

  365.     static forcedinline vSIMDType expand (uint64_t s) noexcept                                  { return vdupq_n_u64 (s); }

  366.     static forcedinline vSIMDType load (const uint64_t* a) noexcept                             { return vld1q_u64 (a); }

  367.     static forcedinline void store (vSIMDType value, uint64_t* a) noexcept                      { vst1q_u64 (a, value); }

  368.     static forcedinline uint64_t get (vSIMDType v, size_t i) noexcept                           { return v[i]; }

  369.     static forcedinline vSIMDType set (vSIMDType v, size_t i, uint64_t s) noexcept              { v[i] = s; return v; }

  370.     static forcedinline vSIMDType add (vSIMDType a, vSIMDType b) noexcept                       { return vaddq_u64 (a, b); }

  371.     static forcedinline vSIMDType sub (vSIMDType a, vSIMDType b) noexcept                       { return vsubq_u64 (a, b); }

  372.     static forcedinline vSIMDType mul (vSIMDType a, vSIMDType b) noexcept                       { return fb::mul (a, b); }

  373.     static forcedinline vSIMDType bit_and (vSIMDType a, vSIMDType b) noexcept                   { return vandq_u64 (a, b); }

  374.     static forcedinline vSIMDType bit_or  (vSIMDType a, vSIMDType b) noexcept                   { return vorrq_u64 (a, b); }

  375.     static forcedinline vSIMDType bit_xor (vSIMDType a, vSIMDType b) noexcept                   { return veorq_u64 (a, b); }

  376.     static forcedinline vSIMDType bit_notand (vSIMDType a, vSIMDType b) noexcept                { return vbicq_u64 (b, a); }

  377.     static forcedinline vSIMDType bit_not (vSIMDType a) noexcept                                { return bit_notand (a, vld1q_u64 ((uint64_t*) kAllBitsSet)); }

  378.     static forcedinline vSIMDType min (vSIMDType a, vSIMDType b) noexcept                       { return fb::min (a, b); }

  379.     static forcedinline vSIMDType max (vSIMDType a, vSIMDType b) noexcept                       { return fb::max (a, b); }

  380.     static forcedinline vSIMDType equal (vSIMDType a, vSIMDType b) noexcept                     { return fb::equal (a, b); }

  381.     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept                  { return fb::notEqual (a, b); }

  382.     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept               { return fb::greaterThan (a, b); }

  383.     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept        { return fb::greaterThanOrEqual (a, b); }

  384.     static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept                  { return (SIMDNativeOps<uint32_t>::sum ((SIMDNativeOps<uint32_t>::vSIMDType) notEqual (a, b)) == 0); }

  385.     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept  { return fb::multiplyAdd (a, b, c); }

  386.     static forcedinline uint64_t sum (vSIMDType a) noexcept { return fb::sum (a); }

  387. };

  388. 

  389.     //==============================================================================

  390. /** Single-precision floating point NEON intrinsics.

  391. 

  392.     @tags{DSP}

  393. */

  394. template <>

  395. struct SIMDNativeOps<float>

  396. {

  397.     //==============================================================================

  398.     typedef float32x4_t vSIMDType;

  399.     typedef uint32x4_t vMaskType;

  400.     typedef SIMDFallbackOps<float, vSIMDType> fb;

  401. 

  402.     //==============================================================================

  403.     DECLARE_NEON_SIMD_CONST (int32_t, kAllBitsSet);

  404.     DECLARE_NEON_SIMD_CONST (int32_t, kEvenHighBit);

  405.     DECLARE_NEON_SIMD_CONST (float, kOne);

  406. 

  407.     //==============================================================================

  408.     static forcedinline vSIMDType expand (float s) noexcept                                    { return vdupq_n_f32 (s); }

  409.     static forcedinline vSIMDType load (const float* a) noexcept                               { return vld1q_f32 (a); }

  410.     static forcedinline float get (vSIMDType v, size_t i) noexcept                             { return v[i]; }

  411.     static forcedinline vSIMDType set (vSIMDType v, size_t i, float s) noexcept                { v[i] = s; return v; }

  412.     static forcedinline void store (vSIMDType value, float* a) noexcept                        { vst1q_f32 (a, value); }

  413.     static forcedinline vSIMDType add (vSIMDType a, vSIMDType b) noexcept                      { return vaddq_f32 (a, b); }

  414.     static forcedinline vSIMDType sub (vSIMDType a, vSIMDType b) noexcept                      { return vsubq_f32 (a, b); }

  415.     static forcedinline vSIMDType mul (vSIMDType a, vSIMDType b) noexcept                      { return vmulq_f32 (a, b); }

  416.     static forcedinline vSIMDType bit_and (vSIMDType a, vSIMDType b) noexcept                  { return (vSIMDType) vandq_u32 ((vMaskType) a, (vMaskType) b); }

  417.     static forcedinline vSIMDType bit_or  (vSIMDType a, vSIMDType b) noexcept                  { return (vSIMDType) vorrq_u32 ((vMaskType) a, (vMaskType) b); }

  418.     static forcedinline vSIMDType bit_xor (vSIMDType a, vSIMDType b) noexcept                  { return (vSIMDType) veorq_u32 ((vMaskType) a, (vMaskType) b); }

  419.     static forcedinline vSIMDType bit_notand (vSIMDType a, vSIMDType b) noexcept               { return (vSIMDType) vbicq_u32 ((vMaskType) b, (vMaskType) a); }

  420.     static forcedinline vSIMDType bit_not (vSIMDType a) noexcept                               { return bit_notand (a, vld1q_f32 ((float*) kAllBitsSet)); }

  421.     static forcedinline vSIMDType min (vSIMDType a, vSIMDType b) noexcept                      { return vminq_f32 (a, b); }

  422.     static forcedinline vSIMDType max (vSIMDType a, vSIMDType b) noexcept                      { return vmaxq_f32 (a, b); }

  423.     static forcedinline vSIMDType equal (vSIMDType a, vSIMDType b) noexcept                    { return (vSIMDType) vceqq_f32 (a, b); }

  424.     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept                 { return bit_not (equal (a, b)); }

  425.     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept              { return (vSIMDType) vcgtq_f32 (a, b); }

  426.     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept       { return (vSIMDType) vcgeq_f32 (a, b); }

  427.     static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept                 { return (SIMDNativeOps<uint32_t>::sum ((SIMDNativeOps<uint32_t>::vSIMDType) notEqual (a, b)) == 0); }

  428.     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept { return vmlaq_f32 (a, b, c); }

  429.     static forcedinline vSIMDType dupeven (vSIMDType a) noexcept                               { return fb::shuffle<(0 << 0) | (0 << 2) | (2 << 4) | (2 << 6)>     (a); }

  430.     static forcedinline vSIMDType dupodd  (vSIMDType a) noexcept                               { return fb::shuffle<(1 << 0) | (1 << 2) | (3 << 4) | (3 << 6)>     (a); }

  431.     static forcedinline vSIMDType swapevenodd (vSIMDType a) noexcept                           { return fb::shuffle<(1 << 0) | (0 << 2) | (3 << 4) | (2 << 6)> (a); }

  432.     static forcedinline vSIMDType oddevensum (vSIMDType a) noexcept                            { return add (fb::shuffle<(2 << 0) | (3 << 2) | (0 << 4) | (1 << 6)> (a), a); }

  433. 

  434.     //==============================================================================

  435.     static forcedinline vSIMDType cmplxmul (vSIMDType a, vSIMDType b) noexcept

  436.     {

  437.         vSIMDType rr_ir = mul (a, dupeven (b));

  438.         vSIMDType ii_ri = mul (swapevenodd (a), dupodd (b));

  439.         return add (rr_ir, bit_xor (ii_ri, vld1q_f32 ((float*) kEvenHighBit)));

  440.     }

  441. 

  442.     static forcedinline float sum (vSIMDType a) noexcept

  443.     {

  444.         auto rr = vadd_f32 (vget_high_f32 (a), vget_low_f32 (a));

  445.         return vget_lane_f32 (vpadd_f32 (rr, rr), 0);

  446.     }

  447. };

  448. 

  449. //==============================================================================

  450. /** Double-precision floating point NEON intrinsics does not exist in NEON

  451.     so we need to emulate this.

  452. 

  453.     @tags{DSP}

  454. */

  455. template <>

  456. struct SIMDNativeOps<double>

  457. {

  458.     //==============================================================================

  459.     typedef struct { double v[2]; } vSIMDType;

  460.     typedef SIMDFallbackOps<double, vSIMDType> fb;

  461. 

  462.     static forcedinline vSIMDType expand (double s) noexcept                     { return {{s, s}}; }

  463.     static forcedinline vSIMDType load (const double* a) noexcept                { return {{a[0], a[1]}}; }

  464.     static forcedinline void store (vSIMDType v, double* a) noexcept             { a[0] = v.v[0]; a[1] = v.v[1]; }

  465.     static forcedinline double get (vSIMDType v, size_t i) noexcept              { return v.v[i]; }

  466.     static forcedinline vSIMDType set (vSIMDType v, size_t i, double s) noexcept { v.v[i] = s; return v; }

  467.     static forcedinline vSIMDType add (vSIMDType a, vSIMDType b) noexcept        { return {{a.v[0] + b.v[0], a.v[1] + b.v[1]}}; }

  468.     static forcedinline vSIMDType sub (vSIMDType a, vSIMDType b) noexcept        { return {{a.v[0] - b.v[0], a.v[1] - b.v[1]}}; }

  469.     static forcedinline vSIMDType mul (vSIMDType a, vSIMDType b) noexcept        { return {{a.v[0] * b.v[0], a.v[1] * b.v[1]}}; }

  470.     static forcedinline vSIMDType bit_and (vSIMDType a, vSIMDType b) noexcept    { return fb::bit_and (a, b); }

  471.     static forcedinline vSIMDType bit_or  (vSIMDType a, vSIMDType b) noexcept    { return fb::bit_or  (a, b); }

  472.     static forcedinline vSIMDType bit_xor (vSIMDType a, vSIMDType b) noexcept    { return fb::bit_xor (a, b); }

  473.     static forcedinline vSIMDType bit_notand (vSIMDType a, vSIMDType b) noexcept { return fb::bit_notand (a, b); }

  474.     static forcedinline vSIMDType bit_not (vSIMDType a) noexcept                 { return fb::bit_not (a); }

  475.     static forcedinline vSIMDType min (vSIMDType a, vSIMDType b) noexcept                    { return fb::min (a, b); }

  476.     static forcedinline vSIMDType max (vSIMDType a, vSIMDType b) noexcept                    { return fb::max (a, b); }

  477.     static forcedinline vSIMDType equal (vSIMDType a, vSIMDType b) noexcept                  { return fb::equal (a, b); }

  478.     static forcedinline vSIMDType notEqual (vSIMDType a, vSIMDType b) noexcept               { return fb::notEqual (a, b); }

  479.     static forcedinline vSIMDType greaterThan (vSIMDType a, vSIMDType b) noexcept            { return fb::greaterThan (a, b); }

  480.     static forcedinline vSIMDType greaterThanOrEqual (vSIMDType a, vSIMDType b) noexcept     { return fb::greaterThanOrEqual (a, b); }

  481.     static forcedinline bool      allEqual (vSIMDType a, vSIMDType b) noexcept               { return fb::allEqual (a, b); }

  482.     static forcedinline vSIMDType multiplyAdd (vSIMDType a, vSIMDType b, vSIMDType c) noexcept { return fb::multiplyAdd (a, b, c); }

  483.     static forcedinline vSIMDType cmplxmul (vSIMDType a, vSIMDType b) noexcept { return fb::cmplxmul (a, b); }

  484.     static forcedinline double sum (vSIMDType a) noexcept { return fb::sum (a); }

  485.     static forcedinline vSIMDType oddevensum (vSIMDType a) noexcept { return a; }

  486. };

  487. 

  488. #endif

  489. 

  490. #if JUCE_GCC && (__GNUC__ >= 6)

  491.  #pragma GCC diagnostic pop

  492. #endif

  493. 

  494. } // namespace dsp

  495. } // namespace juce