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Merge remote-tracking branch 'origin/speedup_rotate_cpx_vector' into integration_2024_w34

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This commit is contained in:
Robert Schmidt
2024-08-27 14:29:12 +02:00
parent 2ec8fefbe8 aa9183c218
commit baf02b8d1e
1 changed files with 16 additions and 11 deletions
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openair1/PHY/TOOLS/cmult_sv.c
+16 -11
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@@ -160,7 +160,6 @@ void rotate_cpx_vector(const c16_t *const x, const c16_t *const alpha, c16_t *y,
int32_t *xd=(int32_t *)x;
simde__m128i shift = simde_mm_cvtsi32_si128(output_shift);
register simd_q15_t m0,m1,m2,m3;
((int16_t *)&alpha_128)[0] = alpha->r;
((int16_t *)&alpha_128)[1] = -alpha->i;
@@ -174,17 +173,23 @@ void rotate_cpx_vector(const c16_t *const x, const c16_t *const alpha, c16_t *y,
for(i=0; i<N>>2; i++) {
m0 = simde_mm_setr_epi32(xd[0],xd[0],xd[1],xd[1]);
m1 = simde_mm_setr_epi32(xd[2],xd[2],xd[3],xd[3]);
m2 = simde_mm_madd_epi16(m0,alpha_128); //complex multiply. result is 32bit [Re Im Re Im]
m3 = simde_mm_madd_epi16(m1,alpha_128); //complex multiply. result is 32bit [Re Im Re Im]
m2 = simde_mm_sra_epi32(m2,shift); // shift right by shift in order to compensate for the input amplitude
m3 = simde_mm_sra_epi32(m3,shift); // shift right by shift in order to compensate for the input amplitude
y_128[0] = simde_mm_packs_epi32(m2,m3); // pack in 16bit integers with saturation [re im re im re im re im]
y_128[i] = simde_mm_packs_epi32( // pack in 16bit integers with saturation [re im re im re im re im]
simde_mm_sra_epi32( // shift right by shift in order to compensate for the input amplitude
simde_mm_madd_epi16( // complex multiply. result is 32bit [Re Im Re Im]
simde_mm_setr_epi32( xd[0+i*4], xd[0+i*4], xd[1+i*4], xd[1+i*4]),
alpha_128
),
shift
),
simde_mm_sra_epi32( // shift right by shift in order to compensate for the input amplitude
simde_mm_madd_epi16( // complex multiply. result is 32bit [Re Im Re Im]
simde_mm_setr_epi32( xd[2+i*4], xd[2+i*4], xd[3+i*4], xd[3+i*4]),
alpha_128
),
shift
)
);
//print_ints("y_128[0]=", &y_128[0]);
xd+=4;
y_128+=1;
}
#if defined(__x86__) || defined(__x86_64__)
}