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case DFT12 processing with specific data organization: remove intermediate pointer

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This commit is contained in:
Laurent THOMAS
2024-10-30 17:54:58 +01:00
committed by Robert Schmidt
parent 4cf2719bd9
commit 5cd5f72533
1 changed files with 24 additions and 26 deletions
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openair1/PHY/TOOLS/oai_dfts.c
+24 -26
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@@ -4561,43 +4561,41 @@ __attribute__((always_inline)) static inline void dft12f_simd256(simd256_q15_t *
simd256_q15_t tmp_dft12[12];
simd256_q15_t *tmp_dft12_ptr = &tmp_dft12[0];
// msg("dft12\n");
bfly4_tw1_256(x0,
x3,
x6,
x9,
tmp_dft12_ptr,
tmp_dft12_ptr+3,
tmp_dft12_ptr+6,
tmp_dft12_ptr+9);
tmp_dft12,
tmp_dft12+3,
tmp_dft12+6,
tmp_dft12+9);
bfly4_tw1_256(x1,
x4,
x7,
x10,
tmp_dft12_ptr+1,
tmp_dft12_ptr+4,
tmp_dft12_ptr+7,
tmp_dft12_ptr+10);
tmp_dft12+1,
tmp_dft12+4,
tmp_dft12+7,
tmp_dft12+10);
bfly4_tw1_256(x2,
x5,
x8,
x11,
tmp_dft12_ptr+2,
tmp_dft12_ptr+5,
tmp_dft12_ptr+8,
tmp_dft12_ptr+11);
tmp_dft12+2,
tmp_dft12+5,
tmp_dft12+8,
tmp_dft12+11);
// k2=0;
bfly3_tw1_256(tmp_dft12_ptr,
tmp_dft12_ptr+1,
tmp_dft12_ptr+2,
bfly3_tw1_256(tmp_dft12,
tmp_dft12+1,
tmp_dft12+2,
y0,
y4,
y8);
@@ -4605,9 +4603,9 @@ __attribute__((always_inline)) static inline void dft12f_simd256(simd256_q15_t *
// k2=1;
bfly3_256(tmp_dft12_ptr+3,
tmp_dft12_ptr+4,
tmp_dft12_ptr+5,
bfly3_256(tmp_dft12+3,
tmp_dft12+4,
tmp_dft12+5,
y1,
y5,
y9,
@@ -4617,9 +4615,9 @@ __attribute__((always_inline)) static inline void dft12f_simd256(simd256_q15_t *
// k2=2;
bfly3_256(tmp_dft12_ptr+6,
tmp_dft12_ptr+7,
tmp_dft12_ptr+8,
bfly3_256(tmp_dft12+6,
tmp_dft12+7,
tmp_dft12+8,
y2,
y6,
y10,
@@ -4627,9 +4625,9 @@ __attribute__((always_inline)) static inline void dft12f_simd256(simd256_q15_t *
W4_12_256);
// k2=3;
bfly3_256(tmp_dft12_ptr+9,
tmp_dft12_ptr+10,
tmp_dft12_ptr+11,
bfly3_256(tmp_dft12+9,
tmp_dft12+10,
tmp_dft12+11,
y3,
y7,
y11,