# include <arm_neon.h>
#endif
-// The inline asm is only safe for GCC, where it is necessary to get good codegen.
-// See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101693
-// Clang does fine without it.
-// Play around here: https://godbolt.org/z/7EWqrYq51
-#if (defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER))
-#define USE_INLINE_ASM
-#endif
-
-// Use either the AVX512 or AVX-VNNI version of the VNNI instructions.
-#if defined(USE_AVXVNNI)
-#define VNNI_PREFIX "%{vex%} "
-#else
-#define VNNI_PREFIX ""
-#endif
-
namespace Stockfish::Simd {
#if defined (USE_AVX512)
return _mm512_add_epi32(sum0123a, sum0123b);
}
- [[maybe_unused]] static __m128i m512_haddx4(
- __m512i sum0, __m512i sum1, __m512i sum2, __m512i sum3,
- __m128i bias) {
-
- __m512i sum = m512_hadd128x16_interleave(sum0, sum1, sum2, sum3);
-
- __m256i sum256lo = _mm512_castsi512_si256(sum);
- __m256i sum256hi = _mm512_extracti64x4_epi64(sum, 1);
-
- sum256lo = _mm256_add_epi32(sum256lo, sum256hi);
-
- __m128i sum128lo = _mm256_castsi256_si128(sum256lo);
- __m128i sum128hi = _mm256_extracti128_si256(sum256lo, 1);
-
- return _mm_add_epi32(_mm_add_epi32(sum128lo, sum128hi), bias);
- }
-
[[maybe_unused]] static void m512_add_dpbusd_epi32(
__m512i& acc,
__m512i a,
__m512i b) {
# if defined (USE_VNNI)
-# if defined (USE_INLINE_ASM)
- asm(
- "vpdpbusd %[b], %[a], %[acc]\n\t"
- : [acc]"+v"(acc)
- : [a]"v"(a), [b]"vm"(b)
- );
-# else
acc = _mm512_dpbusd_epi32(acc, a, b);
-# endif
# else
-# if defined (USE_INLINE_ASM)
- __m512i tmp = _mm512_maddubs_epi16(a, b);
- asm(
- "vpmaddwd %[tmp], %[ones], %[tmp]\n\t"
- "vpaddd %[acc], %[tmp], %[acc]\n\t"
- : [acc]"+v"(acc), [tmp]"+&v"(tmp)
- : [ones]"v"(_mm512_set1_epi16(1))
- );
-# else
__m512i product0 = _mm512_maddubs_epi16(a, b);
product0 = _mm512_madd_epi16(product0, _mm512_set1_epi16(1));
acc = _mm512_add_epi32(acc, product0);
-# endif
# endif
}
__m512i a1, __m512i b1) {
# if defined (USE_VNNI)
-# if defined (USE_INLINE_ASM)
- asm(
- "vpdpbusd %[b0], %[a0], %[acc]\n\t"
- "vpdpbusd %[b1], %[a1], %[acc]\n\t"
- : [acc]"+&v"(acc)
- : [a0]"v"(a0), [b0]"vm"(b0), [a1]"v"(a1), [b1]"vm"(b1)
- );
-# else
acc = _mm512_dpbusd_epi32(acc, a0, b0);
acc = _mm512_dpbusd_epi32(acc, a1, b1);
-# endif
# else
-# if defined (USE_INLINE_ASM)
- __m512i tmp0 = _mm512_maddubs_epi16(a0, b0);
- __m512i tmp1 = _mm512_maddubs_epi16(a1, b1);
- asm(
- "vpaddsw %[tmp0], %[tmp1], %[tmp0]\n\t"
- "vpmaddwd %[tmp0], %[ones], %[tmp0]\n\t"
- "vpaddd %[acc], %[tmp0], %[acc]\n\t"
- : [acc]"+v"(acc), [tmp0]"+&v"(tmp0)
- : [tmp1]"v"(tmp1), [ones]"v"(_mm512_set1_epi16(1))
- );
-# else
__m512i product0 = _mm512_maddubs_epi16(a0, b0);
__m512i product1 = _mm512_maddubs_epi16(a1, b1);
- product0 = _mm512_adds_epi16(product0, product1);
product0 = _mm512_madd_epi16(product0, _mm512_set1_epi16(1));
- acc = _mm512_add_epi32(acc, product0);
-# endif
+ product1 = _mm512_madd_epi16(product1, _mm512_set1_epi16(1));
+ acc = _mm512_add_epi32(acc, _mm512_add_epi32(product0, product1));
# endif
}
return _mm_cvtsi128_si32(sum128) + bias;
}
- [[maybe_unused]] static __m128i m256_haddx4(
- __m256i sum0, __m256i sum1, __m256i sum2, __m256i sum3,
- __m128i bias) {
-
- sum0 = _mm256_hadd_epi32(sum0, sum1);
- sum2 = _mm256_hadd_epi32(sum2, sum3);
-
- sum0 = _mm256_hadd_epi32(sum0, sum2);
-
- __m128i sum128lo = _mm256_castsi256_si128(sum0);
- __m128i sum128hi = _mm256_extracti128_si256(sum0, 1);
-
- return _mm_add_epi32(_mm_add_epi32(sum128lo, sum128hi), bias);
- }
-
[[maybe_unused]] static void m256_add_dpbusd_epi32(
__m256i& acc,
__m256i a,
__m256i b) {
# if defined (USE_VNNI)
-# if defined (USE_INLINE_ASM)
- asm(
- VNNI_PREFIX "vpdpbusd %[b], %[a], %[acc]\n\t"
- : [acc]"+v"(acc)
- : [a]"v"(a), [b]"vm"(b)
- );
-# else
acc = _mm256_dpbusd_epi32(acc, a, b);
-# endif
# else
-# if defined (USE_INLINE_ASM)
- __m256i tmp = _mm256_maddubs_epi16(a, b);
- asm(
- "vpmaddwd %[tmp], %[ones], %[tmp]\n\t"
- "vpaddd %[acc], %[tmp], %[acc]\n\t"
- : [acc]"+v"(acc), [tmp]"+&v"(tmp)
- : [ones]"v"(_mm256_set1_epi16(1))
- );
-# else
__m256i product0 = _mm256_maddubs_epi16(a, b);
product0 = _mm256_madd_epi16(product0, _mm256_set1_epi16(1));
acc = _mm256_add_epi32(acc, product0);
-# endif
# endif
}
__m256i a1, __m256i b1) {
# if defined (USE_VNNI)
-# if defined (USE_INLINE_ASM)
- asm(
- VNNI_PREFIX "vpdpbusd %[b0], %[a0], %[acc]\n\t"
- VNNI_PREFIX "vpdpbusd %[b1], %[a1], %[acc]\n\t"
- : [acc]"+&v"(acc)
- : [a0]"v"(a0), [b0]"vm"(b0), [a1]"v"(a1), [b1]"vm"(b1)
- );
-# else
acc = _mm256_dpbusd_epi32(acc, a0, b0);
acc = _mm256_dpbusd_epi32(acc, a1, b1);
-# endif
# else
-# if defined (USE_INLINE_ASM)
- __m256i tmp0 = _mm256_maddubs_epi16(a0, b0);
- __m256i tmp1 = _mm256_maddubs_epi16(a1, b1);
- asm(
- "vpaddsw %[tmp0], %[tmp1], %[tmp0]\n\t"
- "vpmaddwd %[tmp0], %[ones], %[tmp0]\n\t"
- "vpaddd %[acc], %[tmp0], %[acc]\n\t"
- : [acc]"+v"(acc), [tmp0]"+&v"(tmp0)
- : [tmp1]"v"(tmp1), [ones]"v"(_mm256_set1_epi16(1))
- );
-# else
__m256i product0 = _mm256_maddubs_epi16(a0, b0);
__m256i product1 = _mm256_maddubs_epi16(a1, b1);
- product0 = _mm256_adds_epi16(product0, product1);
product0 = _mm256_madd_epi16(product0, _mm256_set1_epi16(1));
- acc = _mm256_add_epi32(acc, product0);
-# endif
+ product1 = _mm256_madd_epi16(product1, _mm256_set1_epi16(1));
+ acc = _mm256_add_epi32(acc, _mm256_add_epi32(product0, product1));
# endif
}
return _mm_cvtsi128_si32(sum) + bias;
}
- [[maybe_unused]] static __m128i m128_haddx4(
- __m128i sum0, __m128i sum1, __m128i sum2, __m128i sum3,
- __m128i bias) {
-
- sum0 = _mm_hadd_epi32(sum0, sum1);
- sum2 = _mm_hadd_epi32(sum2, sum3);
- sum0 = _mm_hadd_epi32(sum0, sum2);
- return _mm_add_epi32(sum0, bias);
- }
-
[[maybe_unused]] static void m128_add_dpbusd_epi32(
__m128i& acc,
__m128i a,
__m128i b) {
-# if defined (USE_INLINE_ASM)
- __m128i tmp = _mm_maddubs_epi16(a, b);
- asm(
- "pmaddwd %[ones], %[tmp]\n\t"
- "paddd %[tmp], %[acc]\n\t"
- : [acc]"+v"(acc), [tmp]"+&v"(tmp)
- : [ones]"v"(_mm_set1_epi16(1))
- );
-# else
__m128i product0 = _mm_maddubs_epi16(a, b);
product0 = _mm_madd_epi16(product0, _mm_set1_epi16(1));
acc = _mm_add_epi32(acc, product0);
-# endif
}
[[maybe_unused]] static void m128_add_dpbusd_epi32x2(
__m128i a0, __m128i b0,
__m128i a1, __m128i b1) {
-# if defined (USE_INLINE_ASM)
- __m128i tmp0 = _mm_maddubs_epi16(a0, b0);
- __m128i tmp1 = _mm_maddubs_epi16(a1, b1);
- asm(
- "paddsw %[tmp1], %[tmp0]\n\t"
- "pmaddwd %[ones], %[tmp0]\n\t"
- "paddd %[tmp0], %[acc]\n\t"
- : [acc]"+v"(acc), [tmp0]"+&v"(tmp0)
- : [tmp1]"v"(tmp1), [ones]"v"(_mm_set1_epi16(1))
- );
-# else
__m128i product0 = _mm_maddubs_epi16(a0, b0);
__m128i product1 = _mm_maddubs_epi16(a1, b1);
- product0 = _mm_adds_epi16(product0, product1);
product0 = _mm_madd_epi16(product0, _mm_set1_epi16(1));
- acc = _mm_add_epi32(acc, product0);
-# endif
+ product1 = _mm_madd_epi16(product1, _mm_set1_epi16(1));
+ acc = _mm_add_epi32(acc, _mm_add_epi32(product0, product1));
+ }
+
+#endif
+
+#if defined (USE_NEON_DOTPROD)
+
+ [[maybe_unused]] static void dotprod_m128_add_dpbusd_epi32x2(
+ int32x4_t& acc,
+ int8x16_t a0, int8x16_t b0,
+ int8x16_t a1, int8x16_t b1) {
+
+ acc = vdotq_s32(acc, a0, b0);
+ acc = vdotq_s32(acc, a1, b1);
}
+ [[maybe_unused]] static void dotprod_m128_add_dpbusd_epi32(
+ int32x4_t& acc,
+ int8x16_t a, int8x16_t b) {
+
+ acc = vdotq_s32(acc, a, b);
+ }
#endif
#if defined (USE_NEON)
return neon_m128_reduce_add_epi32(sum) + bias;
}
- [[maybe_unused]] static int32x4_t neon_m128_haddx4(
- int32x4_t sum0, int32x4_t sum1, int32x4_t sum2, int32x4_t sum3,
- int32x4_t bias) {
-
- int32x4_t hsums {
- neon_m128_reduce_add_epi32(sum0),
- neon_m128_reduce_add_epi32(sum1),
- neon_m128_reduce_add_epi32(sum2),
- neon_m128_reduce_add_epi32(sum3)
- };
- return vaddq_s32(hsums, bias);
- }
-
[[maybe_unused]] static void neon_m128_add_dpbusd_epi32x2(
int32x4_t& acc,
int8x8_t a0, int8x8_t b0,
product = vmlal_s8(product, a1, b1);
acc = vpadalq_s16(acc, product);
}
-
#endif
+#if USE_NEON >= 8
+ [[maybe_unused]] static void neon_m128_add_dpbusd_epi32(
+ int32x4_t& acc,
+ int8x16_t a, int8x16_t b) {
+
+ int16x8_t product0 = vmull_s8(vget_low_s8(a), vget_low_s8(b));
+ int16x8_t product1 = vmull_high_s8(a, b);
+ int16x8_t sum = vpaddq_s16(product0, product1);
+ acc = vpadalq_s16(acc, sum);
+ }
+#endif
}
#endif // STOCKFISH_SIMD_H_INCLUDED
projects / stockfish / blobdiff