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Optimize pointer deref

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Jérémy Lugand 2024-01-05 17:53:21 +01:00
parent 1cc1d74379
commit 252c28d3e6
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GPG Key ID: E60AF078DEB97B35
1 changed files with 9 additions and 11 deletions
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20
soh/soh/mixer.c
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@ -334,19 +334,17 @@ void aEnvMixerImpl(uint16_t in_addr, uint16_t n_samples, bool swap_reverb,
uint16_t vol_wet = rspa.vol_wet; uint16_t vol_wet = rspa.vol_wet;
uint16_t rate_wet = rspa.rate_wet; uint16_t rate_wet = rspa.rate_wet;
const __m128i* in_ptr = (__m128i*)in;
const __m128i* d_ptr[2] = { (__m128i*) dry[0], (__m128i*) dry[1] };
const __m128i* w_ptr[2] = { (__m128i*) wet[0], (__m128i*) wet[1] };
// Aligned loop // Aligned loop
for (int N = 0; N < n_aligned; N+=8) { for (int N = 0; N < n_aligned; N+=8) {
// Init vectors // Init vectors
__m128i in_channels = _mm_load_si128((__m128i*) &in[N]); const __m128i in_channels = _mm_load_si128(in_ptr++);
__m128i d[2] = { __m128i d[2] = { _mm_load_si128(d_ptr[0]), _mm_load_si128(d_ptr[1]) };
_mm_load_si128((__m128i*) &dry[0][N]), __m128i w[2] = { _mm_load_si128(w_ptr[0]), _mm_load_si128(w_ptr[1]) };
_mm_load_si128((__m128i*) &dry[1][N])
};
__m128i w[2] = {
_mm_load_si128((__m128i*) &wet[0][N]),
_mm_load_si128((__m128i*) &wet[1][N])
};
// Compute base samples // Compute base samples
// sample = ((in * vols) >> 16) ^ negs // sample = ((in * vols) >> 16) ^ negs
@ -364,8 +362,8 @@ void aEnvMixerImpl(uint16_t in_addr, uint16_t n_samples, bool swap_reverb,
// Store values to buffers // Store values to buffers
for (int j = 0; j < 2; j++) { for (int j = 0; j < 2; j++) {
_mm_store_si128((__m128i*) &dry[j][N], _mm_add_epi16(s[j], d[j])); _mm_store_si128(d_ptr[j]++, _mm_add_epi16(s[j], d[j]));
_mm_store_si128((__m128i*) &wet[j][N], _mm_add_epi16(ss[j], w[j])); _mm_store_si128(w_ptr[j]++, _mm_add_epi16(ss[j], w[j]));
vols[j] += rates[j]; vols[j] += rates[j];
} }
vol_wet += rate_wet; vol_wet += rate_wet;