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_mm256_storeu_pd and _mm256_loadu_pd using 128 bit lanes #1198

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Sep 13, 2024
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_mm256_storeu_pd and _mm256_loadu_pd using 128 bit lanes #1198

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11 changes: 11 additions & 0 deletions simde/x86/avx.h
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Original file line number Diff line number Diff line change
Expand Up @@ -3784,6 +3784,12 @@ simde__m256d
simde_mm256_loadu_pd (const double a[HEDLEY_ARRAY_PARAM(4)]) {
#if defined(SIMDE_X86_AVX_NATIVE)
return _mm256_loadu_pd(a);
#elif SIMDE_NATURAL_VECTOR_SIZE_LE(128)
simde__m256d_private r_;
for (size_t i = 0 ; i < (sizeof(r_.m128d) / sizeof(r_.m128d[0])) ; i++) {
r_.m128d[i] = simde_mm_loadu_pd(a + 2*i);
}
return simde__m256d_from_private(r_);
#else
simde__m256d r;
simde_memcpy(&r, a, sizeof(r));
Expand Down Expand Up @@ -5272,6 +5278,11 @@ void
simde_mm256_storeu_pd (simde_float64 mem_addr[4], simde__m256d a) {
#if defined(SIMDE_X86_AVX_NATIVE)
_mm256_storeu_pd(mem_addr, a);
#elif SIMDE_NATURAL_VECTOR_SIZE_LE(128)
simde__m256d_private a_ = simde__m256d_to_private(a);
for (size_t i = 0 ; i < (sizeof(a_.m128d) / sizeof(a_.m128d[0])) ; i++) {
simde_mm_storeu_pd(mem_addr + 2*i, a_.m128d[i]);
}
#else
simde_memcpy(mem_addr, &a, sizeof(a));
#endif
Expand Down
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