Bulk update copyright dates
[flac.git] / src / libFLAC / lpc_intrin_sse41.c
index a89c0db..bef73f4 100644 (file)
@@ -1,6 +1,6 @@
 /* libFLAC - Free Lossless Audio Codec library
  * Copyright (C) 2000-2009  Josh Coalson
- * Copyright (C) 2011-2013  Xiph.Org Foundation
+ * Copyright (C) 2011-2016  Xiph.Org Foundation
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
 #  include <config.h>
 #endif
 
+#include "private/cpu.h"
+
 #ifndef FLAC__INTEGER_ONLY_LIBRARY
 #ifndef FLAC__NO_ASM
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
 #include "private/lpc.h"
 #ifdef FLAC__SSE4_1_SUPPORTED
 
 
 #include <smmintrin.h> /* SSE4.1 */
 
-#ifdef FLAC__CPU_IA32
-#define RESIDUAL64_RESULT(xmmN) residual[i] = data[i] - _mm_cvtsi128_si32(_mm_srl_epi64(xmmN, cnt));
-#define     DATA64_RESULT(xmmN) data[i] = residual[i] + _mm_cvtsi128_si32(_mm_srl_epi64(xmmN, cnt));
-#define RESIDUAL64_RESULT1(xmmN) residual[i] = data[i] - _mm_cvtsi128_si32(_mm_srli_epi64(xmmN, lp_quantization));
-#define     DATA64_RESULT1(xmmN) data[i] = residual[i] + _mm_cvtsi128_si32(_mm_srli_epi64(xmmN, lp_quantization));
-#else
-#define RESIDUAL64_RESULT(xmmN) residual[i] = data[i] - (FLAC__int32)(_mm_cvtsi128_si64(xmmN) >> lp_quantization);
-#define     DATA64_RESULT(xmmN) data[i] = residual[i] + (FLAC__int32)(_mm_cvtsi128_si64(xmmN) >> lp_quantization);
-#define RESIDUAL64_RESULT1(xmmN) RESIDUAL64_RESULT(xmmN)
-#define     DATA64_RESULT1(xmmN) DATA64_RESULT(xmmN)
-#endif
+#if defined FLAC__CPU_IA32 /* unused for x64 */
+
+#define RESIDUAL64_RESULT(xmmN)  residual[i] = data[i] - _mm_cvtsi128_si32(_mm_srl_epi64(xmmN, cnt))
+#define RESIDUAL64_RESULT1(xmmN) residual[i] = data[i] - _mm_cvtsi128_si32(_mm_srli_epi64(xmmN, lp_quantization))
 
 FLAC__SSE_TARGET("sse4.1")
 void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_sse41(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
 {
        int i;
-#ifdef FLAC__CPU_IA32
        __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
-#endif
 
        FLAC__ASSERT(order > 0);
        FLAC__ASSERT(order <= 32);
@@ -599,9 +592,10 @@ FLAC__SSE_TARGET("sse4.1")
 void FLAC__lpc_restore_signal_wide_intrin_sse41(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[])
 {
        int i;
-#ifdef FLAC__CPU_IA32
        __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
-#endif
+
+       if (!data_len)
+               return;
 
        FLAC__ASSERT(order > 0);
        FLAC__ASSERT(order <= 32);
@@ -610,525 +604,706 @@ void FLAC__lpc_restore_signal_wide_intrin_sse41(const FLAC__int32 residual[], un
        if(order <= 12) {
                if(order > 8) { /* order == 9, 10, 11, 12 */
                        if(order > 10) { /* order == 11, 12 */
-                               if(order == 12) {
-                                       __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
-                                       xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));  // 0  0  q[1]  q[0]
-                                       xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));  // 0  0  q[3]  q[2]
-                                       xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));  // 0  0  q[5]  q[4]
-                                       xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));  // 0  0  q[7]  q[6]
-                                       xmm4 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8));  // 0  0  q[9]  q[8]
-                                       xmm5 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+10)); // 0  0  q[11] q[10]
-
-                                       xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0)); // 0  q[1]  0  q[0]
-                                       xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0)); // 0  q[3]  0  q[2]
-                                       xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0)); // 0  q[5]  0  q[4]
-                                       xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0)); // 0  q[7]  0  q[6]
-                                       xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0)); // 0  q[9]  0  q[8]
-                                       xmm5 = _mm_shuffle_epi32(xmm5, _MM_SHUFFLE(3,1,2,0)); // 0  q[11] 0  q[10]
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = 0;
-                                               //sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
-                                               //sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
-                                               xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-12));  // 0   0        d[i-11]  d[i-12]
-                                               xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1)); // 0  d[i-12]   0        d[i-11]
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm5);
+                               __m128i qlp[6], dat[6];
+                               __m128i summ, temp;
+                               qlp[0] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));        // 0  0  q[1]  q[0]
+                               qlp[1] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));        // 0  0  q[3]  q[2]
+                               qlp[2] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));        // 0  0  q[5]  q[4]
+                               qlp[3] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));        // 0  0  q[7]  q[6]
+                               qlp[4] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8));        // 0  0  q[9]  q[8]
+                               if (order == 12)
+                                       qlp[5] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+10));       // 0  0  q[11] q[10]
+                               else
+                                       qlp[5] = _mm_cvtsi32_si128(qlp_coeff[10]);                                      // 0  0  0     q[10]
+
+                               qlp[0] = _mm_shuffle_epi32(qlp[0], _MM_SHUFFLE(2,0,3,1));       // 0  q[0]  0  q[1]
+                               qlp[1] = _mm_shuffle_epi32(qlp[1], _MM_SHUFFLE(2,0,3,1));       // 0  q[2]  0  q[3]
+                               qlp[2] = _mm_shuffle_epi32(qlp[2], _MM_SHUFFLE(2,0,3,1));       // 0  q[4]  0  q[5]
+                               qlp[3] = _mm_shuffle_epi32(qlp[3], _MM_SHUFFLE(2,0,3,1));       // 0  q[5]  0  q[7]
+                               qlp[4] = _mm_shuffle_epi32(qlp[4], _MM_SHUFFLE(2,0,3,1));       // 0  q[8]  0  q[9]
+                               qlp[5] = _mm_shuffle_epi32(qlp[5], _MM_SHUFFLE(2,0,3,1));       // 0  q[10] 0  q[11]
+
+                               dat[5] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-12)));        // ?  d[i-11]  ?  d[i-12]
+                               dat[4] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-10)));        // ?  d[i-9]   ?  d[i-10]
+                               dat[3] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-8 )));        // ?  d[i-7]   ?  d[i-8]
+                               dat[2] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-6 )));        // ?  d[i-5]   ?  d[i-6]
+                               dat[1] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-4 )));        // ?  d[i-3]   ?  d[i-4]
+                               dat[0] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 )));        // ?  d[i-1]   ?  d[i-2]
+
+                               summ =                     _mm_mul_epi32(dat[5], qlp[5]) ;
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[4], qlp[4]));
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[3], qlp[3]));
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
+
+                               summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));    // ?_64  sum_64
+                               summ = _mm_srl_epi64(summ, cnt);                                                // ?_64  (sum >> lp_quantization)_64  ==  ?_32  ?_32  ?_32  (sum >> lp_quantization)_32
+                               temp = _mm_cvtsi32_si128(residual[0]);                                  // 0  0  0  r[i]
+                               temp = _mm_add_epi32(temp, summ);                                               // ?  ?  ?  d[i]
+                               data[0] = _mm_cvtsi128_si32(temp);
+
+                               for(i = 1; i < (int)data_len; i++) {
+                                       dat[5] = _mm_alignr_epi8(dat[4], dat[5], 8);    //  ?  d[i-10] ?  d[i-11]
+                                       dat[4] = _mm_alignr_epi8(dat[3], dat[4], 8);    //  ?  d[i-8]  ?  d[i-9]
+                                       dat[3] = _mm_alignr_epi8(dat[2], dat[3], 8);    //  ?  d[i-6]  ?  d[i-7]
+                                       dat[2] = _mm_alignr_epi8(dat[1], dat[2], 8);    //  ?  d[i-4]  ?  d[i-5]
+                                       dat[1] = _mm_alignr_epi8(dat[0], dat[1], 8);    //  ?  d[i-2]  ?  d[i-3]
+                                       dat[0] = _mm_alignr_epi8(temp,   dat[0], 8);    //  ?  d[i  ]  ?  d[i-1]
+
+                                       summ =                     _mm_mul_epi32(dat[5], qlp[5]) ;
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[4], qlp[4]));
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[3], qlp[3]));
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
+
+                                       summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));    // ?_64  sum_64
+                                       summ = _mm_srl_epi64(summ, cnt);                                                // ?_64  (sum >> lp_quantization)_64  ==  ?_32  ?_32  ?_32  (sum >> lp_quantization)_32
+                                       temp = _mm_cvtsi32_si128(residual[i]);                                  // 0  0  0  r[i]
+                                       temp = _mm_add_epi32(temp, summ);                                               // ?  ?  ?  d[i]
+                                       data[i] = _mm_cvtsi128_si32(temp);
+                               }
+                       }
+                       else { /* order == 9, 10 */
+                               __m128i qlp[5], dat[5];
+                               __m128i summ, temp;
+                               qlp[0] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
+                               qlp[1] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
+                               qlp[2] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
+                               qlp[3] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
+                               if (order == 10)
+                                       qlp[4] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8));
+                               else
+                                       qlp[4] = _mm_cvtsi32_si128(qlp_coeff[8]);
+
+                               qlp[0] = _mm_shuffle_epi32(qlp[0], _MM_SHUFFLE(2,0,3,1));
+                               qlp[1] = _mm_shuffle_epi32(qlp[1], _MM_SHUFFLE(2,0,3,1));
+                               qlp[2] = _mm_shuffle_epi32(qlp[2], _MM_SHUFFLE(2,0,3,1));
+                               qlp[3] = _mm_shuffle_epi32(qlp[3], _MM_SHUFFLE(2,0,3,1));
+                               qlp[4] = _mm_shuffle_epi32(qlp[4], _MM_SHUFFLE(2,0,3,1));
+
+                               dat[4] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-10)));
+                               dat[3] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-8 )));
+                               dat[2] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-6 )));
+                               dat[1] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-4 )));
+                               dat[0] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 )));
+
+                               summ =                     _mm_mul_epi32(dat[4], qlp[4]) ;
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[3], qlp[3]));
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
+
+                               summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
+                               summ = _mm_srl_epi64(summ, cnt);
+                               temp = _mm_cvtsi32_si128(residual[0]);
+                               temp = _mm_add_epi32(temp, summ);
+                               data[0] = _mm_cvtsi128_si32(temp);
+
+                               for(i = 1; i < (int)data_len; i++) {
+                                       dat[4] = _mm_alignr_epi8(dat[3], dat[4], 8);
+                                       dat[3] = _mm_alignr_epi8(dat[2], dat[3], 8);
+                                       dat[2] = _mm_alignr_epi8(dat[1], dat[2], 8);
+                                       dat[1] = _mm_alignr_epi8(dat[0], dat[1], 8);
+                                       dat[0] = _mm_alignr_epi8(temp,   dat[0], 8);
+
+                                       summ =                     _mm_mul_epi32(dat[4], qlp[4]) ;
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[3], qlp[3]));
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
+
+                                       summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
+                                       summ = _mm_srl_epi64(summ, cnt);
+                                       temp = _mm_cvtsi32_si128(residual[i]);
+                                       temp = _mm_add_epi32(temp, summ);
+                                       data[i] = _mm_cvtsi128_si32(temp);
+                               }
+                       }
+               }
+               else if(order > 4) { /* order == 5, 6, 7, 8 */
+                       if(order > 6) { /* order == 7, 8 */
+                               __m128i qlp[4], dat[4];
+                               __m128i summ, temp;
+                               qlp[0] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
+                               qlp[1] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
+                               qlp[2] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
+                               if (order == 8)
+                                       qlp[3] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
+                               else
+                                       qlp[3] = _mm_cvtsi32_si128(qlp_coeff[6]);
+
+                               qlp[0] = _mm_shuffle_epi32(qlp[0], _MM_SHUFFLE(2,0,3,1));
+                               qlp[1] = _mm_shuffle_epi32(qlp[1], _MM_SHUFFLE(2,0,3,1));
+                               qlp[2] = _mm_shuffle_epi32(qlp[2], _MM_SHUFFLE(2,0,3,1));
+                               qlp[3] = _mm_shuffle_epi32(qlp[3], _MM_SHUFFLE(2,0,3,1));
+
+                               dat[3] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-8 )));
+                               dat[2] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-6 )));
+                               dat[1] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-4 )));
+                               dat[0] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 )));
+
+                               summ =                     _mm_mul_epi32(dat[3], qlp[3]) ;
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
+
+                               summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
+                               summ = _mm_srl_epi64(summ, cnt);
+                               temp = _mm_cvtsi32_si128(residual[0]);
+                               temp = _mm_add_epi32(temp, summ);
+                               data[0] = _mm_cvtsi128_si32(temp);
+
+                               for(i = 1; i < (int)data_len; i++) {
+                                       dat[3] = _mm_alignr_epi8(dat[2], dat[3], 8);
+                                       dat[2] = _mm_alignr_epi8(dat[1], dat[2], 8);
+                                       dat[1] = _mm_alignr_epi8(dat[0], dat[1], 8);
+                                       dat[0] = _mm_alignr_epi8(temp,   dat[0], 8);
+
+                                       summ =                     _mm_mul_epi32(dat[3], qlp[3]) ;
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
+
+                                       summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
+                                       summ = _mm_srl_epi64(summ, cnt);
+                                       temp = _mm_cvtsi32_si128(residual[i]);
+                                       temp = _mm_add_epi32(temp, summ);
+                                       data[i] = _mm_cvtsi128_si32(temp);
+                               }
+                       }
+                       else { /* order == 5, 6 */
+                               __m128i qlp[3], dat[3];
+                               __m128i summ, temp;
+                               qlp[0] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
+                               qlp[1] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
+                               if (order == 6)
+                                       qlp[2] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
+                               else
+                                       qlp[2] = _mm_cvtsi32_si128(qlp_coeff[4]);
+
+                               qlp[0] = _mm_shuffle_epi32(qlp[0], _MM_SHUFFLE(2,0,3,1));
+                               qlp[1] = _mm_shuffle_epi32(qlp[1], _MM_SHUFFLE(2,0,3,1));
+                               qlp[2] = _mm_shuffle_epi32(qlp[2], _MM_SHUFFLE(2,0,3,1));
+
+                               dat[2] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-6 )));
+                               dat[1] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-4 )));
+                               dat[0] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 )));
+
+                               summ =                     _mm_mul_epi32(dat[2], qlp[2]) ;
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
+
+                               summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
+                               summ = _mm_srl_epi64(summ, cnt);
+                               temp = _mm_cvtsi32_si128(residual[0]);
+                               temp = _mm_add_epi32(temp, summ);
+                               data[0] = _mm_cvtsi128_si32(temp);
+
+                               for(i = 1; i < (int)data_len; i++) {
+                                       dat[2] = _mm_alignr_epi8(dat[1], dat[2], 8);
+                                       dat[1] = _mm_alignr_epi8(dat[0], dat[1], 8);
+                                       dat[0] = _mm_alignr_epi8(temp,   dat[0], 8);
+
+                                       summ =                     _mm_mul_epi32(dat[2], qlp[2]) ;
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
+
+                                       summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
+                                       summ = _mm_srl_epi64(summ, cnt);
+                                       temp = _mm_cvtsi32_si128(residual[i]);
+                                       temp = _mm_add_epi32(temp, summ);
+                                       data[i] = _mm_cvtsi128_si32(temp);
+                               }
+                       }
+               }
+               else { /* order == 1, 2, 3, 4 */
+                       if(order > 2) { /* order == 3, 4 */
+                               __m128i qlp[2], dat[2];
+                               __m128i summ, temp;
+                               qlp[0] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
+                               if (order == 4)
+                                       qlp[1] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
+                               else
+                                       qlp[1] = _mm_cvtsi32_si128(qlp_coeff[2]);
+
+                               qlp[0] = _mm_shuffle_epi32(qlp[0], _MM_SHUFFLE(2,0,3,1));
+                               qlp[1] = _mm_shuffle_epi32(qlp[1], _MM_SHUFFLE(2,0,3,1));
+
+                               dat[1] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-4 )));
+                               dat[0] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 )));
+
+                               summ =                     _mm_mul_epi32(dat[1], qlp[1]) ;
+                               summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
+
+                               summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
+                               summ = _mm_srl_epi64(summ, cnt);
+                               temp = _mm_cvtsi32_si128(residual[0]);
+                               temp = _mm_add_epi32(temp, summ);
+                               data[0] = _mm_cvtsi128_si32(temp);
+
+                               for(i = 1; i < (int)data_len; i++) {
+                                       dat[1] = _mm_alignr_epi8(dat[0], dat[1], 8);
+                                       dat[0] = _mm_alignr_epi8(temp,   dat[0], 8);
+
+                                       summ =                     _mm_mul_epi32(dat[1], qlp[1]) ;
+                                       summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
+
+                                       summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
+                                       summ = _mm_srl_epi64(summ, cnt);
+                                       temp = _mm_cvtsi32_si128(residual[i]);
+                                       temp = _mm_add_epi32(temp, summ);
+                                       data[i] = _mm_cvtsi128_si32(temp);
+                               }
+                       }
+                       else { /* order == 1, 2 */
+                               if(order == 2) {
+                                       __m128i qlp0, dat0;
+                                       __m128i summ, temp;
+                                       qlp0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff));
+                                       qlp0 = _mm_shuffle_epi32(qlp0, _MM_SHUFFLE(2,0,3,1));
 
-                                               //sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
-                                               //sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-10));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm4);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
+                                       dat0 = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 )));
 
-                                               //sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
-                                               //sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm3);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
+                                       summ = _mm_mul_epi32(dat0, qlp0) ;
 
-                                               //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
-                                               //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm2);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
+                                       summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
+                                       summ = _mm_srl_epi64(summ, cnt);
+                                       temp = _mm_cvtsi32_si128(residual[0]);
+                                       temp = _mm_add_epi32(temp, summ);
+                                       data[0] = _mm_cvtsi128_si32(temp);
 
-                                               //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
-                                               //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm1);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
+                                       for(i = 1; i < (int)data_len; i++) {
+                                               dat0 = _mm_alignr_epi8(temp, dat0, 8);
 
-                                               //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
-                                               //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm0);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
+                                               summ = _mm_mul_epi32(dat0, qlp0) ;
 
-                                               xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
-                                               DATA64_RESULT1(xmm7);
+                                               summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
+                                               summ = _mm_srl_epi64(summ, cnt);
+                                               temp = _mm_cvtsi32_si128(residual[i]);
+                                               temp = _mm_add_epi32(temp, summ);
+                                               data[i] = _mm_cvtsi128_si32(temp);
                                        }
                                }
-                               else { /* order == 11 */
-                                       __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
-                                       xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
-                                       xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
-                                       xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
-                                       xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
-                                       xmm4 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8));
-                                       xmm5 = _mm_cvtsi32_si128(qlp_coeff[10]);
-
-                                       xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-                                       xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-                                       xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
-                                       xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
-                                       xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = 0;
-                                               //sum  = qlp_coeff[10] * (FLAC__int64)data[i-11];
-                                               xmm7 = _mm_cvtsi32_si128(data[i-11]);
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm5);
-
-                                               //sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
-                                               //sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-10));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm4);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
-                                               //sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm3);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
+                               else { /* order == 1 */
+                                       __m128i qlp0;
+                                       __m128i summ, temp;
+                                       qlp0 = _mm_cvtsi32_si128(qlp_coeff[0]);
+                                       temp = _mm_cvtsi32_si128(data[-1]);
+
+                                       summ = _mm_mul_epi32(temp, qlp0);
+                                       summ = _mm_srl_epi64(summ, cnt);
+                                       temp = _mm_cvtsi32_si128(residual[0]);
+                                       temp = _mm_add_epi32(temp, summ);
+                                       data[0] = _mm_cvtsi128_si32(temp);
+
+                                       for(i = 1; i < (int)data_len; i++) {
+                                               summ = _mm_mul_epi32(temp, qlp0) ;
+                                               summ = _mm_srl_epi64(summ, cnt);
+                                               temp = _mm_cvtsi32_si128(residual[i]);
+                                               temp = _mm_add_epi32(temp, summ);
+                                               data[i] = _mm_cvtsi128_si32(temp);
+                                       }
+                               }
+                       }
+               }
+       }
+       else { /* order > 12 */
+               FLAC__int64 sum;
+               for(i = 0; i < (int)data_len; i++) {
+                       sum = 0;
+                       switch(order) {
+                               case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
+                               case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
+                               case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
+                               case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
+                               case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
+                               case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
+                               case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
+                               case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
+                               case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
+                               case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
+                               case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
+                               case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
+                               case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
+                               case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
+                               case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
+                               case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
+                               case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
+                               case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
+                               case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
+                               case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
+                                        sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
+                                        sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+                                        sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
+                                        sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
+                                        sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
+                                        sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
+                                        sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
+                                        sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
+                                        sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
+                                        sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
+                                        sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
+                                        sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
+                       }
+                       data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
+               }
+       }
+}
 
-                                               //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
-                                               //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm2);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
+#endif /* defined FLAC__CPU_IA32 */
 
-                                               //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
-                                               //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm1);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
+FLAC__SSE_TARGET("sse4.1")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
+{
+       int i;
+       FLAC__int32 sum;
+       __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
 
-                                               //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
-                                               //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm0);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
+       FLAC__ASSERT(order > 0);
+       FLAC__ASSERT(order <= 32);
 
-                                               xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
-                                               DATA64_RESULT1(xmm7);
+       if(order <= 12) {
+               if(order > 8) {
+                       if(order > 10) {
+                               if(order == 12) {
+                                       __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+                                       q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+                                       q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+                                       q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+                                       q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+                                       q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+                                       q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+                                       q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+                                       q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+                                       q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+                                       q10 = _mm_cvtsi32_si128(qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
+                                       q11 = _mm_cvtsi32_si128(qlp_coeff[11]); q11 = _mm_shuffle_epi32(q11, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ, mull;
+                                               summ = _mm_mullo_epi32(q11, _mm_loadu_si128((const __m128i*)(data+i-12)));
+                                               mull = _mm_mullo_epi32(q10, _mm_loadu_si128((const __m128i*)(data+i-11))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
+                                       }
+                               }
+                               else { /* order == 11 */
+                                       __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+                                       q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+                                       q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+                                       q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+                                       q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+                                       q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+                                       q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+                                       q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+                                       q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+                                       q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+                                       q10 = _mm_cvtsi32_si128(qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ, mull;
+                                               summ = _mm_mullo_epi32(q10, _mm_loadu_si128((const __m128i*)(data+i-11)));
+                                               mull = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
                                        }
                                }
                        }
-                       else { /* order == 9, 10 */
+                       else {
                                if(order == 10) {
-                                       __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
-                                       xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
-                                       xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
-                                       xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
-                                       xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
-                                       xmm4 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8));
-
-                                       xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-                                       xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-                                       xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
-                                       xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
-                                       xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = 0;
-                                               //sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
-                                               //sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
-                                               xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-10));
-                                               xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm4);
-
-                                               //sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
-                                               //sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm3);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
-                                               //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm2);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
-                                               //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm1);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
-                                               //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm0);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
-                                               DATA64_RESULT(xmm7);
+                                       __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+                                       q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+                                       q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+                                       q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+                                       q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+                                       q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+                                       q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+                                       q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+                                       q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+                                       q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ, mull;
+                                               summ = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(data+i-10)));
+                                               mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
                                        }
                                }
                                else { /* order == 9 */
-                                       __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
-                                       xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
-                                       xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
-                                       xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
-                                       xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
-                                       xmm4 = _mm_cvtsi32_si128(qlp_coeff[8]);
-
-                                       xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-                                       xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-                                       xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
-                                       xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = 0;
-                                               //sum  = qlp_coeff[8] * (FLAC__int64)data[i-9];
-                                               xmm7 = _mm_cvtsi32_si128(data[i-9]);
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm4);
-
-                                               //sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
-                                               //sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm3);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
-                                               //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm2);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
-                                               //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm1);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
-                                               //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm0);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
-                                               DATA64_RESULT(xmm7);
+                                       __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+                                       q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+                                       q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+                                       q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+                                       q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+                                       q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+                                       q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+                                       q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+                                       q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ, mull;
+                                               summ = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(data+i-9)));
+                                               mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
                                        }
                                }
                        }
                }
-               else if(order > 4) { /* order == 5, 6, 7, 8 */
-                       if(order > 6) { /* order == 7, 8 */
+               else if(order > 4) {
+                       if(order > 6) {
                                if(order == 8) {
-                                       __m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
-                                       xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
-                                       xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
-                                       xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
-                                       xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
-
-                                       xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-                                       xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-                                       xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
-                                       xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = 0;
-                                               //sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
-                                               //sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
-                                               xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-8));
-                                               xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm3);
-
-                                               //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
-                                               //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm2);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
-                                               //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm1);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
-                                               //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm0);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
-                                               DATA64_RESULT(xmm7);
+                                       __m128i q0, q1, q2, q3, q4, q5, q6, q7;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+                                       q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+                                       q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+                                       q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+                                       q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+                                       q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+                                       q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+                                       q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ, mull;
+                                               summ = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(data+i-8)));
+                                               mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
                                        }
                                }
                                else { /* order == 7 */
-                                       __m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
-                                       xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
-                                       xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
-                                       xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
-                                       xmm3 = _mm_cvtsi32_si128(qlp_coeff[6]);
-
-                                       xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-                                       xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-                                       xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = 0;
-                                               //sum  = qlp_coeff[6] * (FLAC__int64)data[i-7];
-                                               xmm7 = _mm_cvtsi32_si128(data[i-7]);
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm3);
-
-                                               //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
-                                               //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm2);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
-                                               //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm1);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
-                                               //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm0);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
-                                               DATA64_RESULT(xmm7);
+                                       __m128i q0, q1, q2, q3, q4, q5, q6;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+                                       q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+                                       q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+                                       q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+                                       q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+                                       q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+                                       q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ, mull;
+                                               summ = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7)));
+                                               mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
                                        }
                                }
                        }
-                       else { /* order == 5, 6 */
+                       else {
                                if(order == 6) {
-                                       __m128i xmm0, xmm1, xmm2, xmm6, xmm7;
-                                       xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
-                                       xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
-                                       xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
-
-                                       xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-                                       xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-                                       xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = 0;
-                                               //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
-                                               //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
-                                               xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-6));
-                                               xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm2);
-
-                                               //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
-                                               //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm1);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
-                                               //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm0);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
-                                               DATA64_RESULT(xmm7);
+                                       __m128i q0, q1, q2, q3, q4, q5;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+                                       q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+                                       q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+                                       q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+                                       q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+                                       q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ, mull;
+                                               summ = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6)));
+                                               mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
                                        }
                                }
                                else { /* order == 5 */
-                                       __m128i xmm0, xmm1, xmm2, xmm6, xmm7;
-                                       xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
-                                       xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
-                                       xmm2 = _mm_cvtsi32_si128(qlp_coeff[4]);
-
-                                       xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-                                       xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = 0;
-                                               //sum  = qlp_coeff[4] * (FLAC__int64)data[i-5];
-                                               xmm7 = _mm_cvtsi32_si128(data[i-5]);
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm2);
-
-                                               //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
-                                               //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm1);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
-                                               //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm0);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
-                                               DATA64_RESULT(xmm7);
+                                       __m128i q0, q1, q2, q3, q4;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+                                       q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+                                       q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+                                       q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+                                       q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ, mull;
+                                               summ = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5)));
+                                               mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
                                        }
                                }
                        }
                }
-               else { /* order == 1, 2, 3, 4 */
-                       if(order > 2) { /* order == 3, 4 */
+               else {
+                       if(order > 2) {
                                if(order == 4) {
-                                       __m128i xmm0, xmm1, xmm6, xmm7;
-                                       xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
-                                       xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
-
-                                       xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-                                       xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = 0;
-                                               //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
-                                               //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
-                                               xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-4));
-                                               xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm1);
-
-                                               //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
-                                               //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm0);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
-                                               DATA64_RESULT(xmm7);
+                                       __m128i q0, q1, q2, q3;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+                                       q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+                                       q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+                                       q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ, mull;
+                                               summ = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4)));
+                                               mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
                                        }
                                }
                                else { /* order == 3 */
-                                       __m128i xmm0, xmm1, xmm6, xmm7;
-                                       xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
-                                       xmm1 = _mm_cvtsi32_si128(qlp_coeff[2]);
-
-                                       xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = 0;
-                                               //sum  = qlp_coeff[2] * (FLAC__int64)data[i-3];
-                                               xmm7 = _mm_cvtsi32_si128(data[i-3]);
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm1);
-
-                                               //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
-                                               //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
-                                               xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
-                                               xmm6 = _mm_mul_epi32(xmm6, xmm0);
-                                               xmm7 = _mm_add_epi64(xmm7, xmm6);
-
-                                               xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
-                                               DATA64_RESULT(xmm7);
+                                       __m128i q0, q1, q2;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+                                       q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+                                       q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ, mull;
+                                               summ = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3)));
+                                               mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+                                               mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
                                        }
                                }
                        }
-                       else { /* order == 1, 2 */
+                       else {
                                if(order == 2) {
-                                       __m128i xmm0, xmm7;
-                                       xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
-                                       xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = 0;
-                                               //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
-                                               //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-2));
-                                               xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm0);
-
-                                               xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
-                                               DATA64_RESULT(xmm7);
+                                       __m128i q0, q1;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+                                       q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ, mull;
+                                               summ = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2)));
+                                               mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
                                        }
                                }
                                else { /* order == 1 */
-                                       __m128i xmm0, xmm7;
-                                       xmm0 = _mm_cvtsi32_si128(qlp_coeff[0]);
-
-                                       for(i = 0; i < (int)data_len; i++) {
-                                               //sum = qlp_coeff[0] * (FLAC__int64)data[i-1];
-                                               xmm7 = _mm_cvtsi32_si128(data[i-1]);
-                                               xmm7 = _mm_mul_epi32(xmm7, xmm0);
-                                               DATA64_RESULT(xmm7);
+                                       __m128i q0;
+                                       q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+
+                                       for(i = 0; i < (int)data_len-3; i+=4) {
+                                               __m128i summ;
+                                               summ = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1)));
+                                               summ = _mm_sra_epi32(summ, cnt);
+                                               _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
                                        }
                                }
                        }
                }
+               for(; i < (int)data_len; i++) {
+                       sum = 0;
+                       switch(order) {
+                               case 12: sum += qlp_coeff[11] * data[i-12];
+                               case 11: sum += qlp_coeff[10] * data[i-11];
+                               case 10: sum += qlp_coeff[ 9] * data[i-10];
+                               case 9:  sum += qlp_coeff[ 8] * data[i- 9];
+                               case 8:  sum += qlp_coeff[ 7] * data[i- 8];
+                               case 7:  sum += qlp_coeff[ 6] * data[i- 7];
+                               case 6:  sum += qlp_coeff[ 5] * data[i- 6];
+                               case 5:  sum += qlp_coeff[ 4] * data[i- 5];
+                               case 4:  sum += qlp_coeff[ 3] * data[i- 4];
+                               case 3:  sum += qlp_coeff[ 2] * data[i- 3];
+                               case 2:  sum += qlp_coeff[ 1] * data[i- 2];
+                               case 1:  sum += qlp_coeff[ 0] * data[i- 1];
+                       }
+                       residual[i] = data[i] - (sum >> lp_quantization);
+               }
        }
        else { /* order > 12 */
-               FLAC__int64 sum;
                for(i = 0; i < (int)data_len; i++) {
                        sum = 0;
                        switch(order) {
-                               case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
-                               case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
-                               case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
-                               case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
-                               case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
-                               case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
-                               case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
-                               case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
-                               case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
-                               case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
-                               case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
-                               case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
-                               case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
-                               case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
-                               case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
-                               case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
-                               case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
-                               case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
-                               case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
-                               case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
-                                        sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
-                                        sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
-                                        sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
-                                        sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
-                                        sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
-                                        sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
-                                        sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
-                                        sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
-                                        sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
-                                        sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
-                                        sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
-                                        sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
+                               case 32: sum += qlp_coeff[31] * data[i-32];
+                               case 31: sum += qlp_coeff[30] * data[i-31];
+                               case 30: sum += qlp_coeff[29] * data[i-30];
+                               case 29: sum += qlp_coeff[28] * data[i-29];
+                               case 28: sum += qlp_coeff[27] * data[i-28];
+                               case 27: sum += qlp_coeff[26] * data[i-27];
+                               case 26: sum += qlp_coeff[25] * data[i-26];
+                               case 25: sum += qlp_coeff[24] * data[i-25];
+                               case 24: sum += qlp_coeff[23] * data[i-24];
+                               case 23: sum += qlp_coeff[22] * data[i-23];
+                               case 22: sum += qlp_coeff[21] * data[i-22];
+                               case 21: sum += qlp_coeff[20] * data[i-21];
+                               case 20: sum += qlp_coeff[19] * data[i-20];
+                               case 19: sum += qlp_coeff[18] * data[i-19];
+                               case 18: sum += qlp_coeff[17] * data[i-18];
+                               case 17: sum += qlp_coeff[16] * data[i-17];
+                               case 16: sum += qlp_coeff[15] * data[i-16];
+                               case 15: sum += qlp_coeff[14] * data[i-15];
+                               case 14: sum += qlp_coeff[13] * data[i-14];
+                               case 13: sum += qlp_coeff[12] * data[i-13];
+                                        sum += qlp_coeff[11] * data[i-12];
+                                        sum += qlp_coeff[10] * data[i-11];
+                                        sum += qlp_coeff[ 9] * data[i-10];
+                                        sum += qlp_coeff[ 8] * data[i- 9];
+                                        sum += qlp_coeff[ 7] * data[i- 8];
+                                        sum += qlp_coeff[ 6] * data[i- 7];
+                                        sum += qlp_coeff[ 5] * data[i- 6];
+                                        sum += qlp_coeff[ 4] * data[i- 5];
+                                        sum += qlp_coeff[ 3] * data[i- 4];
+                                        sum += qlp_coeff[ 2] * data[i- 3];
+                                        sum += qlp_coeff[ 1] * data[i- 2];
+                                        sum += qlp_coeff[ 0] * data[i- 1];
                        }
-                       data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
+                       residual[i] = data[i] - (sum >> lp_quantization);
                }
        }
 }