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Fix vector mult function for out of bound access

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This commit is contained in:
Sakthivel Velumani
2024-09-19 09:56:25 -04:00
parent a50cb354f4
commit 321a20ea78
1 changed files with 12 additions and 10 deletions
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openair1/PHY/TOOLS/cmult_sv.c
+12 -10
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@@ -30,28 +30,30 @@ void multadd_complex_vector_real_scalar(int16_t *x,
uint8_t zero_flag, uint8_t zero_flag,
uint32_t N) uint32_t N)
{ {
simd_q15_t alpha_128,*x_128=(simd_q15_t *)x,*y_128=(simd_q15_t*)y; simd_q15_t alpha_128,*x_128=(simd_q15_t *)x,*y_128=(simd_q15_t*)y;
int n; int n;
alpha_128 = set1_int16(alpha); alpha_128 = set1_int16(alpha);
const uint32_t num_adds = (N + 3) / 4; // ceil(N/4) const uint32_t num_simd_adds = N / 4;
const uint32_t num_adds = N % 4;
if (zero_flag == 1) { if (zero_flag == 1) {
for (n = 0; n < num_adds; n++) { for (n = 0; n < num_simd_adds; n++) {
// print_shorts("x_128[n]=", &x_128[n]);
// print_shorts("alpha_128", &alpha_128);
y_128[n] = mulhi_int16(x_128[n],alpha_128); y_128[n] = mulhi_int16(x_128[n],alpha_128);
// print_shorts("y_128[n]=", &y_128[n]); }
for (n = 0; n < num_adds; n++) {
const uint32_t offset = num_simd_adds * 4;
y[offset + n] = (x[offset + n] * alpha) >> 16;
} }
} else { } else {
for (n = 0; n < num_adds; n++) { for (n = 0; n < num_simd_adds; n++) {
y_128[n] = adds_int16(y_128[n],mulhi_int16(x_128[n],alpha_128)); y_128[n] = adds_int16(y_128[n],mulhi_int16(x_128[n],alpha_128));
} }
for (n = 0; n < num_adds; n++) {
const uint32_t offset = num_simd_adds * 4;
y[offset + n] += (x[offset + n] * alpha) >> 16;
}
} }
simde_mm_empty();
simde_m_empty();
} }
void multadd_real_vector_complex_scalar(const int16_t *x, const int16_t *alpha, int16_t *y, uint32_t N) void multadd_real_vector_complex_scalar(const int16_t *x, const int16_t *alpha, int16_t *y, uint32_t N)