Example #1
0
static void
TEST (void)
{
  union
    {
      __m128i x[NUM / 2];
      long long ll[NUM];
    } dst;
  union
    {
      __m128i x[NUM / 2];
      int i[NUM * 2];
    } src1, src2;
  int i, sign = 1;
  long long value;

  for (i = 0; i < NUM * 2; i += 2)
    {
      src1.i[i] = i * i * sign;
      src2.i[i] = (i + 20) * sign;
      sign = -sign;
    }

  for (i = 0; i < NUM; i += 2)
    dst.x[i / 2] = _mm_mul_epi32 (src1.x[i / 2], src2.x[i / 2]);

  for (i = 0; i < NUM; i++)
    {
      value = (long long) src1.i[i * 2] * (long long) src2.i[i * 2];
      if (value != dst.ll[i])
	abort ();
    }
}
int oneThread(int threadId)
{
	int *aa;
	int *bb;
	int k;
	int itr;

	aa = (int *)_mm_malloc(sizeof(int)*ARRAY_SIZE, 16);
	bb = (int *)_mm_malloc(sizeof(int)*ARRAY_SIZE, 16);

	memset(&aa[0], 1, ARRAY_SIZE*4);
	memset(&bb[0], 2, ARRAY_SIZE*4);

  __m128i a0,a1,a2,a3,b0,b1,b2,b3;
  __m128i a4,a5,a6,a7,b4,b5,b6,b7;
	__m128i c0,c1,c2,c3;
	__m128i c4,c5,c6,c7;
	__m128i cc;
	cc = _mm_set_epi32 (0, 0, 0, 0);

	for (k = 0; k < REPS; k++) 
	{
		for (itr = 0; itr<ARRAY_SIZE; itr+=32)
		{
			a0 = _mm_load_si128((__m128i*)&aa[itr]);
			a1 = _mm_load_si128((__m128i*)&aa[itr+4]);	
			a2 = _mm_load_si128((__m128i*)&aa[itr+8]);	
			a3 = _mm_load_si128((__m128i*)&aa[itr+12]);	
			a4 = _mm_load_si128((__m128i*)&aa[itr+16]);
			a5 = _mm_load_si128((__m128i*)&aa[itr+20]);	
			a6 = _mm_load_si128((__m128i*)&aa[itr+24]);	
			a7 = _mm_load_si128((__m128i*)&aa[itr+28]);	
			b0 = _mm_load_si128((__m128i*)&bb[itr]);
			b1 = _mm_load_si128((__m128i*)&bb[itr+4]);	
			b2 = _mm_load_si128((__m128i*)&bb[itr+8]);	
			b3 = _mm_load_si128((__m128i*)&bb[itr+12]);	
			b4 = _mm_load_si128((__m128i*)&bb[itr+16]);
			b5 = _mm_load_si128((__m128i*)&bb[itr+20]);	
			b6 = _mm_load_si128((__m128i*)&bb[itr+24]);	
			b7 = _mm_load_si128((__m128i*)&bb[itr+28]);	

			c0 = _mm_mul_epi32(a0, b0);
			c1 = _mm_mul_epi32(a1, b1);
			c2 = _mm_mul_epi32(a2, b2);
			c3 = _mm_mul_epi32(a3, b3);
			c4 = _mm_mul_epi32(a4, b4);
			c5 = _mm_mul_epi32(a5, b5);
			c6 = _mm_mul_epi32(a6, b6);
			c7 = _mm_mul_epi32(a7, b7);

			c0 = _mm_add_epi32(c0,c1);
			c1 = _mm_add_epi32(c2,c3);
			c2 = _mm_add_epi32(c4,c5);
			c3 = _mm_add_epi32(c6,c7);
			c0 = _mm_add_epi32(c0,c1);
			c1 = _mm_add_epi32(c2,c3);
			c0 = _mm_add_epi32(c0,c1);
			cc = _mm_add_epi32(cc,c0);

		}	
	}
	cc = _mm_hadd_epi32(cc,cc);
	cc = _mm_hadd_epi32(cc,cc);

	int count =0;
	count = _mm_cvtsi128_si32(cc) ;	

	free(aa);
	free(bb);

	return count;
}
/* Compute reflection coefficients from input signal */
void silk_burg_modified_sse4_1(
    opus_int32                  *res_nrg,           /* O    Residual energy                                             */
    opus_int                    *res_nrg_Q,         /* O    Residual energy Q value                                     */
    opus_int32                  A_Q16[],            /* O    Prediction coefficients (length order)                      */
    const opus_int16            x[],                /* I    Input signal, length: nb_subfr * (D + subfr_length)       */
    const opus_int32            minInvGain_Q30,     /* I    Inverse of max prediction gain                              */
    const opus_int              subfr_length,       /* I    Input signal subframe length (incl. D preceding samples)    */
    const opus_int              nb_subfr,           /* I    Number of subframes stacked in x                            */
    const opus_int              D,                  /* I    Order                                                       */
    int                         arch                /* I    Run-time architecture                                       */
)
{
    opus_int         k, n, s, lz, rshifts, rshifts_extra, reached_max_gain;
    opus_int32       C0, num, nrg, rc_Q31, invGain_Q30, Atmp_QA, Atmp1, tmp1, tmp2, x1, x2;
    const opus_int16 *x_ptr;
    opus_int32       C_first_row[ SILK_MAX_ORDER_LPC ];
    opus_int32       C_last_row[  SILK_MAX_ORDER_LPC ];
    opus_int32       Af_QA[       SILK_MAX_ORDER_LPC ];
    opus_int32       CAf[ SILK_MAX_ORDER_LPC + 1 ];
    opus_int32       CAb[ SILK_MAX_ORDER_LPC + 1 ];
    opus_int32       xcorr[ SILK_MAX_ORDER_LPC ];

    __m128i FIRST_3210, LAST_3210, ATMP_3210, TMP1_3210, TMP2_3210, T1_3210, T2_3210, PTR_3210, SUBFR_3210, X1_3210, X2_3210;
    __m128i CONST1 = _mm_set1_epi32(1);

    silk_assert(subfr_length * nb_subfr <= MAX_FRAME_SIZE);

    /* Compute autocorrelations, added over subframes */
    silk_sum_sqr_shift(&C0, &rshifts, x, nb_subfr * subfr_length);
    if(rshifts > MAX_RSHIFTS) {
        C0 = silk_LSHIFT32(C0, rshifts - MAX_RSHIFTS);
        silk_assert(C0 > 0);
        rshifts = MAX_RSHIFTS;
    } else {
        lz = silk_CLZ32(C0) - 1;
        rshifts_extra = N_BITS_HEAD_ROOM - lz;
        if(rshifts_extra > 0) {
            rshifts_extra = silk_min(rshifts_extra, MAX_RSHIFTS - rshifts);
            C0 = silk_RSHIFT32(C0, rshifts_extra);
        } else {
            rshifts_extra = silk_max(rshifts_extra, MIN_RSHIFTS - rshifts);
            C0 = silk_LSHIFT32(C0, -rshifts_extra);
        }
        rshifts += rshifts_extra;
    }
    CAb[ 0 ] = CAf[ 0 ] = C0 + silk_SMMUL(SILK_FIX_CONST(FIND_LPC_COND_FAC, 32), C0) + 1;                                /* Q(-rshifts) */
    silk_memset(C_first_row, 0, SILK_MAX_ORDER_LPC * sizeof(opus_int32));
    if(rshifts > 0) {
        for(s = 0; s < nb_subfr; s++) {
            x_ptr = x + s * subfr_length;
            for(n = 1; n < D + 1; n++) {
                C_first_row[ n - 1 ] += (opus_int32)silk_RSHIFT64(
                    silk_inner_prod16_aligned_64(x_ptr, x_ptr + n, subfr_length - n, arch), rshifts);
            }
        }
    } else {
        for(s = 0; s < nb_subfr; s++) {
            int i;
            opus_int32 d;
            x_ptr = x + s * subfr_length;
            celt_pitch_xcorr(x_ptr, x_ptr + 1, xcorr, subfr_length - D, D, arch);
            for(n = 1; n < D + 1; n++) {
               for (i = n + subfr_length - D, d = 0; i < subfr_length; i++)
                  d = MAC16_16(d, x_ptr[ i ], x_ptr[ i - n ]);
               xcorr[ n - 1 ] += d;
            }
            for(n = 1; n < D + 1; n++) {
                C_first_row[ n - 1 ] += silk_LSHIFT32(xcorr[ n - 1 ], -rshifts);
            }
        }
    }
    silk_memcpy(C_last_row, C_first_row, SILK_MAX_ORDER_LPC * sizeof(opus_int32));

    /* Initialize */
    CAb[ 0 ] = CAf[ 0 ] = C0 + silk_SMMUL(SILK_FIX_CONST(FIND_LPC_COND_FAC, 32), C0) + 1;                                /* Q(-rshifts) */

    invGain_Q30 = (opus_int32)1 << 30;
    reached_max_gain = 0;
    for(n = 0; n < D; n++) {
        /* Update first row of correlation matrix (without first element) */
        /* Update last row of correlation matrix (without last element, stored in reversed order) */
        /* Update C * Af */
        /* Update C * flipud(Af) (stored in reversed order) */
        if(rshifts > -2) {
            for(s = 0; s < nb_subfr; s++) {
                x_ptr = x + s * subfr_length;
                x1  = -silk_LSHIFT32((opus_int32)x_ptr[ n ],                    16 - rshifts);        /* Q(16-rshifts) */
                x2  = -silk_LSHIFT32((opus_int32)x_ptr[ subfr_length - n - 1 ], 16 - rshifts);        /* Q(16-rshifts) */
                tmp1 = silk_LSHIFT32((opus_int32)x_ptr[ n ],                    QA - 16);             /* Q(QA-16) */
                tmp2 = silk_LSHIFT32((opus_int32)x_ptr[ subfr_length - n - 1 ], QA - 16);             /* Q(QA-16) */
                for(k = 0; k < n; k++) {
                    C_first_row[ k ] = silk_SMLAWB(C_first_row[ k ], x1, x_ptr[ n - k - 1 ]           ); /* Q(-rshifts) */
                    C_last_row[ k ]  = silk_SMLAWB(C_last_row[ k ],  x2, x_ptr[ subfr_length - n + k ]); /* Q(-rshifts) */
                    Atmp_QA = Af_QA[ k ];
                    tmp1 = silk_SMLAWB(tmp1, Atmp_QA, x_ptr[ n - k - 1 ]           );                 /* Q(QA-16) */
                    tmp2 = silk_SMLAWB(tmp2, Atmp_QA, x_ptr[ subfr_length - n + k ]);                 /* Q(QA-16) */
                }
                tmp1 = silk_LSHIFT32(-tmp1, 32 - QA - rshifts);                                       /* Q(16-rshifts) */
                tmp2 = silk_LSHIFT32(-tmp2, 32 - QA - rshifts);                                       /* Q(16-rshifts) */
                for(k = 0; k <= n; k++) {
                    CAf[ k ] = silk_SMLAWB(CAf[ k ], tmp1, x_ptr[ n - k ]                   );        /* Q(-rshift) */
                    CAb[ k ] = silk_SMLAWB(CAb[ k ], tmp2, x_ptr[ subfr_length - n + k - 1 ]);        /* Q(-rshift) */
                }
            }
        } else {
            for(s = 0; s < nb_subfr; s++) {
                x_ptr = x + s * subfr_length;
                x1  = -silk_LSHIFT32((opus_int32)x_ptr[ n ],                    -rshifts);            /* Q(-rshifts) */
                x2  = -silk_LSHIFT32((opus_int32)x_ptr[ subfr_length - n - 1 ], -rshifts);            /* Q(-rshifts) */
                tmp1 = silk_LSHIFT32((opus_int32)x_ptr[ n ],                    17);                  /* Q17 */
                tmp2 = silk_LSHIFT32((opus_int32)x_ptr[ subfr_length - n - 1 ], 17);                  /* Q17 */

                X1_3210 = _mm_set1_epi32(x1);
                X2_3210 = _mm_set1_epi32(x2);
                TMP1_3210 = _mm_setzero_si128();
                TMP2_3210 = _mm_setzero_si128();
                for(k = 0; k < n - 3; k += 4) {
                    PTR_3210   = OP_CVTEPI16_EPI32_M64(&x_ptr[ n - k - 1 - 3 ]);
                    SUBFR_3210 = OP_CVTEPI16_EPI32_M64(&x_ptr[ subfr_length - n + k ]);
                    FIRST_3210 = _mm_loadu_si128((__m128i *)&C_first_row[ k ]);
                    PTR_3210   = _mm_shuffle_epi32(PTR_3210,  _MM_SHUFFLE(0, 1, 2, 3));
                    LAST_3210  = _mm_loadu_si128((__m128i *)&C_last_row[ k ]);
                    ATMP_3210  = _mm_loadu_si128((__m128i *)&Af_QA[ k ]);

                    T1_3210 = _mm_mullo_epi32(PTR_3210, X1_3210);
                    T2_3210 = _mm_mullo_epi32(SUBFR_3210, X2_3210);

                    ATMP_3210 = _mm_srai_epi32(ATMP_3210, 7);
                    ATMP_3210 = _mm_add_epi32(ATMP_3210, CONST1);
                    ATMP_3210 = _mm_srai_epi32(ATMP_3210, 1);

                    FIRST_3210 = _mm_add_epi32(FIRST_3210, T1_3210);
                    LAST_3210 = _mm_add_epi32(LAST_3210, T2_3210);

                    PTR_3210   = _mm_mullo_epi32(ATMP_3210, PTR_3210);
                    SUBFR_3210   = _mm_mullo_epi32(ATMP_3210, SUBFR_3210);

                    _mm_storeu_si128((__m128i *)&C_first_row[ k ], FIRST_3210);
                    _mm_storeu_si128((__m128i *)&C_last_row[ k ], LAST_3210);

                    TMP1_3210 = _mm_add_epi32(TMP1_3210, PTR_3210);
                    TMP2_3210 = _mm_add_epi32(TMP2_3210, SUBFR_3210);
                }

                TMP1_3210 = _mm_add_epi32(TMP1_3210, _mm_unpackhi_epi64(TMP1_3210, TMP1_3210));
                TMP2_3210 = _mm_add_epi32(TMP2_3210, _mm_unpackhi_epi64(TMP2_3210, TMP2_3210));
                TMP1_3210 = _mm_add_epi32(TMP1_3210, _mm_shufflelo_epi16(TMP1_3210, 0x0E));
                TMP2_3210 = _mm_add_epi32(TMP2_3210, _mm_shufflelo_epi16(TMP2_3210, 0x0E));

                tmp1 += _mm_cvtsi128_si32(TMP1_3210);
                tmp2 += _mm_cvtsi128_si32(TMP2_3210);

                for(; k < n; k++) {
                    C_first_row[ k ] = silk_MLA(C_first_row[ k ], x1, x_ptr[ n - k - 1 ]           ); /* Q(-rshifts) */
                    C_last_row[ k ]  = silk_MLA(C_last_row[ k ],  x2, x_ptr[ subfr_length - n + k ]); /* Q(-rshifts) */
                    Atmp1 = silk_RSHIFT_ROUND(Af_QA[ k ], QA - 17);                                   /* Q17 */
                    tmp1 = silk_MLA(tmp1, x_ptr[ n - k - 1 ],            Atmp1);                      /* Q17 */
                    tmp2 = silk_MLA(tmp2, x_ptr[ subfr_length - n + k ], Atmp1);                      /* Q17 */
                }

                tmp1 = -tmp1;                /* Q17 */
                tmp2 = -tmp2;                /* Q17 */

                {
                    __m128i xmm_tmp1, xmm_tmp2;
                    __m128i xmm_x_ptr_n_k_x2x0, xmm_x_ptr_n_k_x3x1;
                    __m128i xmm_x_ptr_sub_x2x0, xmm_x_ptr_sub_x3x1;

                    xmm_tmp1 = _mm_set1_epi32(tmp1);
                    xmm_tmp2 = _mm_set1_epi32(tmp2);

                    for(k = 0; k <= n - 3; k += 4) {
                        xmm_x_ptr_n_k_x2x0 = OP_CVTEPI16_EPI32_M64(&x_ptr[ n - k - 3 ]);
                        xmm_x_ptr_sub_x2x0 = OP_CVTEPI16_EPI32_M64(&x_ptr[ subfr_length - n + k - 1 ]);

                        xmm_x_ptr_n_k_x2x0 = _mm_shuffle_epi32(xmm_x_ptr_n_k_x2x0, _MM_SHUFFLE(0, 1, 2, 3));

                        xmm_x_ptr_n_k_x2x0 = _mm_slli_epi32(xmm_x_ptr_n_k_x2x0, -rshifts - 1);
                        xmm_x_ptr_sub_x2x0 = _mm_slli_epi32(xmm_x_ptr_sub_x2x0, -rshifts - 1);

                        /* equal shift right 4 bytes, xmm_x_ptr_n_k_x3x1 = _mm_srli_si128(xmm_x_ptr_n_k_x2x0, 4)*/
                        xmm_x_ptr_n_k_x3x1 = _mm_shuffle_epi32(xmm_x_ptr_n_k_x2x0, _MM_SHUFFLE(0, 3, 2, 1));
                        xmm_x_ptr_sub_x3x1 = _mm_shuffle_epi32(xmm_x_ptr_sub_x2x0, _MM_SHUFFLE(0, 3, 2, 1));

                        xmm_x_ptr_n_k_x2x0 = _mm_mul_epi32(xmm_x_ptr_n_k_x2x0, xmm_tmp1);
                        xmm_x_ptr_n_k_x3x1 = _mm_mul_epi32(xmm_x_ptr_n_k_x3x1, xmm_tmp1);
                        xmm_x_ptr_sub_x2x0 = _mm_mul_epi32(xmm_x_ptr_sub_x2x0, xmm_tmp2);
                        xmm_x_ptr_sub_x3x1 = _mm_mul_epi32(xmm_x_ptr_sub_x3x1, xmm_tmp2);

                        xmm_x_ptr_n_k_x2x0 = _mm_srli_epi64(xmm_x_ptr_n_k_x2x0, 16);
                        xmm_x_ptr_n_k_x3x1 = _mm_slli_epi64(xmm_x_ptr_n_k_x3x1, 16);
                        xmm_x_ptr_sub_x2x0 = _mm_srli_epi64(xmm_x_ptr_sub_x2x0, 16);
                        xmm_x_ptr_sub_x3x1 = _mm_slli_epi64(xmm_x_ptr_sub_x3x1, 16);

                        xmm_x_ptr_n_k_x2x0 = _mm_blend_epi16(xmm_x_ptr_n_k_x2x0, xmm_x_ptr_n_k_x3x1, 0xCC);
                        xmm_x_ptr_sub_x2x0 = _mm_blend_epi16(xmm_x_ptr_sub_x2x0, xmm_x_ptr_sub_x3x1, 0xCC);

                        X1_3210  = _mm_loadu_si128((__m128i *)&CAf[ k ]);
                        PTR_3210 = _mm_loadu_si128((__m128i *)&CAb[ k ]);

                        X1_3210  = _mm_add_epi32(X1_3210, xmm_x_ptr_n_k_x2x0);
                        PTR_3210 = _mm_add_epi32(PTR_3210, xmm_x_ptr_sub_x2x0);

                        _mm_storeu_si128((__m128i *)&CAf[ k ], X1_3210);
                        _mm_storeu_si128((__m128i *)&CAb[ k ], PTR_3210);
                    }

                    for(; k <= n; k++) {
                        CAf[ k ] = silk_SMLAWW(CAf[ k ], tmp1,
                            silk_LSHIFT32((opus_int32)x_ptr[ n - k ], -rshifts - 1));                    /* Q(-rshift) */
                        CAb[ k ] = silk_SMLAWW(CAb[ k ], tmp2,
                            silk_LSHIFT32((opus_int32)x_ptr[ subfr_length - n + k - 1 ], -rshifts - 1)); /* Q(-rshift) */
                    }
                }
            }
        }

        /* Calculate nominator and denominator for the next order reflection (parcor) coefficient */
        tmp1 = C_first_row[ n ];                                                                        /* Q(-rshifts) */
        tmp2 = C_last_row[ n ];                                                                         /* Q(-rshifts) */
        num  = 0;                                                                                       /* Q(-rshifts) */
        nrg  = silk_ADD32(CAb[ 0 ], CAf[ 0 ]);                                                        /* Q(1-rshifts) */
        for(k = 0; k < n; k++) {
            Atmp_QA = Af_QA[ k ];
            lz = silk_CLZ32(silk_abs(Atmp_QA)) - 1;
            lz = silk_min(32 - QA, lz);
            Atmp1 = silk_LSHIFT32(Atmp_QA, lz);                                                       /* Q(QA + lz) */

            tmp1 = silk_ADD_LSHIFT32(tmp1, silk_SMMUL(C_last_row[  n - k - 1 ], Atmp1), 32 - QA - lz);  /* Q(-rshifts) */
            tmp2 = silk_ADD_LSHIFT32(tmp2, silk_SMMUL(C_first_row[ n - k - 1 ], Atmp1), 32 - QA - lz);  /* Q(-rshifts) */
            num  = silk_ADD_LSHIFT32(num,  silk_SMMUL(CAb[ n - k ],             Atmp1), 32 - QA - lz);  /* Q(-rshifts) */
            nrg  = silk_ADD_LSHIFT32(nrg,  silk_SMMUL(silk_ADD32(CAb[ k + 1 ], CAf[ k + 1 ]),
                                                                                Atmp1), 32 - QA - lz);    /* Q(1-rshifts) */
        }
        CAf[ n + 1 ] = tmp1;                                                                            /* Q(-rshifts) */
        CAb[ n + 1 ] = tmp2;                                                                            /* Q(-rshifts) */
        num = silk_ADD32(num, tmp2);                                                                  /* Q(-rshifts) */
        num = silk_LSHIFT32(-num, 1);                                                                 /* Q(1-rshifts) */

        /* Calculate the next order reflection (parcor) coefficient */
        if(silk_abs(num) < nrg) {
            rc_Q31 = silk_DIV32_varQ(num, nrg, 31);
        } else {
            rc_Q31 = (num > 0) ? silk_int32_MAX : silk_int32_MIN;
        }

        /* Update inverse prediction gain */
        tmp1 = ((opus_int32)1 << 30) - silk_SMMUL(rc_Q31, rc_Q31);
        tmp1 = silk_LSHIFT(silk_SMMUL(invGain_Q30, tmp1), 2);
        if(tmp1 <= minInvGain_Q30) {
            /* Max prediction gain exceeded; set reflection coefficient such that max prediction gain is exactly hit */
            tmp2 = ((opus_int32)1 << 30) - silk_DIV32_varQ(minInvGain_Q30, invGain_Q30, 30);            /* Q30 */
            rc_Q31 = silk_SQRT_APPROX(tmp2);                                                  /* Q15 */
            /* Newton-Raphson iteration */
            rc_Q31 = silk_RSHIFT32(rc_Q31 + silk_DIV32(tmp2, rc_Q31), 1);                   /* Q15 */
            rc_Q31 = silk_LSHIFT32(rc_Q31, 16);                                               /* Q31 */
            if(num < 0) {
                /* Ensure adjusted reflection coefficients has the original sign */
                rc_Q31 = -rc_Q31;
            }
            invGain_Q30 = minInvGain_Q30;
            reached_max_gain = 1;
        } else {
            invGain_Q30 = tmp1;
        }

        /* Update the AR coefficients */
        for(k = 0; k < (n + 1) >> 1; k++) {
            tmp1 = Af_QA[ k ];                                                                  /* QA */
            tmp2 = Af_QA[ n - k - 1 ];                                                          /* QA */
            Af_QA[ k ]         = silk_ADD_LSHIFT32(tmp1, silk_SMMUL(tmp2, rc_Q31), 1);      /* QA */
            Af_QA[ n - k - 1 ] = silk_ADD_LSHIFT32(tmp2, silk_SMMUL(tmp1, rc_Q31), 1);      /* QA */
        }
        Af_QA[ n ] = silk_RSHIFT32(rc_Q31, 31 - QA);                                          /* QA */

        if(reached_max_gain) {
            /* Reached max prediction gain; set remaining coefficients to zero and exit loop */
            for(k = n + 1; k < D; k++) {
                Af_QA[ k ] = 0;
            }
            break;
        }

        /* Update C * Af and C * Ab */
        for(k = 0; k <= n + 1; k++) {
            tmp1 = CAf[ k ];                                                                    /* Q(-rshifts) */
            tmp2 = CAb[ n - k + 1 ];                                                            /* Q(-rshifts) */
            CAf[ k ]         = silk_ADD_LSHIFT32(tmp1, silk_SMMUL(tmp2, rc_Q31), 1);        /* Q(-rshifts) */
            CAb[ n - k + 1 ] = silk_ADD_LSHIFT32(tmp2, silk_SMMUL(tmp1, rc_Q31), 1);        /* Q(-rshifts) */
        }
    }

    if(reached_max_gain) {
        for(k = 0; k < D; k++) {
            /* Scale coefficients */
            A_Q16[ k ] = -silk_RSHIFT_ROUND(Af_QA[ k ], QA - 16);
        }
        /* Subtract energy of preceding samples from C0 */
        if(rshifts > 0) {
            for(s = 0; s < nb_subfr; s++) {
                x_ptr = x + s * subfr_length;
                C0 -= (opus_int32)silk_RSHIFT64(silk_inner_prod16_aligned_64(x_ptr, x_ptr, D, arch), rshifts);
            }
        } else {
            for(s = 0; s < nb_subfr; s++) {
                x_ptr = x + s * subfr_length;
                C0 -= silk_LSHIFT32(silk_inner_prod_aligned(x_ptr, x_ptr, D, arch), -rshifts);
            }
        }
        /* Approximate residual energy */
        *res_nrg = silk_LSHIFT(silk_SMMUL(invGain_Q30, C0), 2);
        *res_nrg_Q = -rshifts;
    } else {
        /* Return residual energy */
        nrg  = CAf[ 0 ];                                                                            /* Q(-rshifts) */
        tmp1 = (opus_int32)1 << 16;                                                                             /* Q16 */
        for(k = 0; k < D; k++) {
            Atmp1 = silk_RSHIFT_ROUND(Af_QA[ k ], QA - 16);                                       /* Q16 */
            nrg  = silk_SMLAWW(nrg, CAf[ k + 1 ], Atmp1);                                         /* Q(-rshifts) */
            tmp1 = silk_SMLAWW(tmp1, Atmp1, Atmp1);                                               /* Q16 */
            A_Q16[ k ] = -Atmp1;
        }
        *res_nrg = silk_SMLAWW(nrg, silk_SMMUL(SILK_FIX_CONST(FIND_LPC_COND_FAC, 32), C0), -tmp1);/* Q(-rshifts) */
        *res_nrg_Q = -rshifts;
    }
}
Example #4
0
__m128i test_mm_mul_epi32(__m128i x, __m128i y) {
  // CHECK-LABEL: test_mm_mul_epi32
  // CHECK: call <2 x i64> @llvm.x86.sse41.pmuldq
  // CHECK-ASM: pmuldq %xmm{{.*}}, %xmm{{.*}}
  return _mm_mul_epi32(x, y);
}
Example #5
0
BOOST_FORCEINLINE __m128i __vectorcall operator * ( __m128i const left, __m128i const right ) {
    return _mm_mul_epi32( left, right );
}
Example #6
0
__m128i test_mm_mul_epi32(__m128i x, __m128i y) {
  // CHECK-LABEL: test_mm_mul_epi32
  // CHECK: call <2 x i64> @llvm.x86.sse41.pmuldq(<4 x i32> %{{.*}}, <4 x i32> %{{.*}})
  return _mm_mul_epi32(x, y);
}
Example #7
0
/* Entropy constrained matrix-weighted VQ, hard-coded to 5-element vectors, for a single input data vector */
void silk_VQ_WMat_EC_sse4_1(
    opus_int8                   *ind,                           /* O    index of best codebook vector               */
    opus_int32                  *rate_dist_Q14,                 /* O    best weighted quant error + mu * rate       */
    opus_int                    *gain_Q7,                       /* O    sum of absolute LTP coefficients            */
    const opus_int16            *in_Q14,                        /* I    input vector to be quantized                */
    const opus_int32            *W_Q18,                         /* I    weighting matrix                            */
    const opus_int8             *cb_Q7,                         /* I    codebook                                    */
    const opus_uint8            *cb_gain_Q7,                    /* I    codebook effective gain                     */
    const opus_uint8            *cl_Q5,                         /* I    code length for each codebook vector        */
    const opus_int              mu_Q9,                          /* I    tradeoff betw. weighted error and rate      */
    const opus_int32            max_gain_Q7,                    /* I    maximum sum of absolute LTP coefficients    */
    opus_int                    L                               /* I    number of vectors in codebook               */
)
{
    opus_int   k, gain_tmp_Q7;
    const opus_int8 *cb_row_Q7;
    opus_int16 diff_Q14[ 5 ];
    opus_int32 sum1_Q14, sum2_Q16;

    __m128i C_tmp1, C_tmp2, C_tmp3, C_tmp4, C_tmp5;
    /* Loop over codebook */
    *rate_dist_Q14 = silk_int32_MAX;
    cb_row_Q7 = cb_Q7;
    for( k = 0; k < L; k++ ) {
        gain_tmp_Q7 = cb_gain_Q7[k];

        diff_Q14[ 0 ] = in_Q14[ 0 ] - silk_LSHIFT( cb_row_Q7[ 0 ], 7 );

        C_tmp1 = OP_CVTEPI16_EPI32_M64( &in_Q14[ 1 ] );
        C_tmp2 = OP_CVTEPI8_EPI32_M32( &cb_row_Q7[ 1 ] );
        C_tmp2 = _mm_slli_epi32( C_tmp2, 7 );
        C_tmp1 = _mm_sub_epi32( C_tmp1, C_tmp2 );

        diff_Q14[ 1 ] = _mm_extract_epi16( C_tmp1, 0 );
        diff_Q14[ 2 ] = _mm_extract_epi16( C_tmp1, 2 );
        diff_Q14[ 3 ] = _mm_extract_epi16( C_tmp1, 4 );
        diff_Q14[ 4 ] = _mm_extract_epi16( C_tmp1, 6 );

        /* Weighted rate */
        sum1_Q14 = silk_SMULBB( mu_Q9, cl_Q5[ k ] );

        /* Penalty for too large gain */
        sum1_Q14 = silk_ADD_LSHIFT32( sum1_Q14, silk_max( silk_SUB32( gain_tmp_Q7, max_gain_Q7 ), 0 ), 10 );

        silk_assert( sum1_Q14 >= 0 );

        /* first row of W_Q18 */
        C_tmp3 = _mm_loadu_si128( (__m128i *)(&W_Q18[ 1 ] ) );
        C_tmp4 = _mm_mul_epi32( C_tmp3, C_tmp1 );
        C_tmp4 = _mm_srli_si128( C_tmp4, 2 );

        C_tmp1 = _mm_shuffle_epi32( C_tmp1, _MM_SHUFFLE( 0, 3, 2, 1 ) ); /* shift right 4 bytes */
        C_tmp3 = _mm_shuffle_epi32( C_tmp3, _MM_SHUFFLE( 0, 3, 2, 1 ) ); /* shift right 4 bytes */

        C_tmp5 = _mm_mul_epi32( C_tmp3, C_tmp1 );
        C_tmp5 = _mm_srli_si128( C_tmp5, 2 );

        C_tmp5 = _mm_add_epi32( C_tmp4, C_tmp5 );
        C_tmp5 = _mm_slli_epi32( C_tmp5, 1 );

        C_tmp5 = _mm_add_epi32( C_tmp5, _mm_shuffle_epi32( C_tmp5, _MM_SHUFFLE( 0, 0, 0, 2 ) ) );
        sum2_Q16 = _mm_cvtsi128_si32( C_tmp5 );

        sum2_Q16 = silk_SMLAWB( sum2_Q16, W_Q18[  0 ], diff_Q14[ 0 ] );
        sum1_Q14 = silk_SMLAWB( sum1_Q14, sum2_Q16,    diff_Q14[ 0 ] );

        /* second row of W_Q18 */
        sum2_Q16 = silk_SMULWB(           W_Q18[  7 ], diff_Q14[ 2 ] );
        sum2_Q16 = silk_SMLAWB( sum2_Q16, W_Q18[  8 ], diff_Q14[ 3 ] );
        sum2_Q16 = silk_SMLAWB( sum2_Q16, W_Q18[  9 ], diff_Q14[ 4 ] );
        sum2_Q16 = silk_LSHIFT( sum2_Q16, 1 );
        sum2_Q16 = silk_SMLAWB( sum2_Q16, W_Q18[  6 ], diff_Q14[ 1 ] );
        sum1_Q14 = silk_SMLAWB( sum1_Q14, sum2_Q16,    diff_Q14[ 1 ] );

        /* third row of W_Q18 */
        sum2_Q16 = silk_SMULWB(           W_Q18[ 13 ], diff_Q14[ 3 ] );
        sum2_Q16 = silk_SMLAWB( sum2_Q16, W_Q18[ 14 ], diff_Q14[ 4 ] );
        sum2_Q16 = silk_LSHIFT( sum2_Q16, 1 );
        sum2_Q16 = silk_SMLAWB( sum2_Q16, W_Q18[ 12 ], diff_Q14[ 2 ] );
        sum1_Q14 = silk_SMLAWB( sum1_Q14, sum2_Q16,    diff_Q14[ 2 ] );

        /* fourth row of W_Q18 */
        sum2_Q16 = silk_SMULWB(           W_Q18[ 19 ], diff_Q14[ 4 ] );
        sum2_Q16 = silk_LSHIFT( sum2_Q16, 1 );
        sum2_Q16 = silk_SMLAWB( sum2_Q16, W_Q18[ 18 ], diff_Q14[ 3 ] );
        sum1_Q14 = silk_SMLAWB( sum1_Q14, sum2_Q16,    diff_Q14[ 3 ] );

        /* last row of W_Q18 */
        sum2_Q16 = silk_SMULWB(           W_Q18[ 24 ], diff_Q14[ 4 ] );
        sum1_Q14 = silk_SMLAWB( sum1_Q14, sum2_Q16,    diff_Q14[ 4 ] );

        silk_assert( sum1_Q14 >= 0 );

        /* find best */
        if( sum1_Q14 < *rate_dist_Q14 ) {
            *rate_dist_Q14 = sum1_Q14;
            *ind = (opus_int8)k;
            *gain_Q7 = gain_tmp_Q7;
        }

        /* Go to next cbk vector */
        cb_row_Q7 += LTP_ORDER;
    }
}