[x265] [PATCH] sad[8xN]: Intrinsic code
praveen at multicorewareinc.com
praveen at multicorewareinc.com
Fri Aug 23 08:42:26 CEST 2013
# HG changeset patch
# User praveentiwari
# Date 1377240135 -19800
# Node ID 664704e5b91d81f3b01057173aa182885d005129
# Parent 2fff95ef9e502c74067bb8196e8806baae2c3175
sad[8xN]: Intrinsic code
diff -r 2fff95ef9e50 -r 664704e5b91d source/common/vec/pixel8.inc
--- a/source/common/vec/pixel8.inc Fri Aug 23 12:06:49 2013 +0530
+++ b/source/common/vec/pixel8.inc Fri Aug 23 12:12:15 2013 +0530
@@ -31,6 +31,7 @@
#define ALWAYSINLINE __forceinline
#pragma warning(disable: 4100) // unused formal parameters
#endif
+#pragma warning(disable: 4799) // MMX warning , EMMS
template<int ly>
int sad_4(pixel * fenc, intptr_t fencstride, pixel * fref, intptr_t frefstride)
@@ -72,56 +73,405 @@
return horizontal_add(sum);
}
-template<int size>
-ALWAYSINLINE void unrollFunc_8(pixel *fenc, intptr_t fencstride, pixel *fref, intptr_t frefstride, Vec8us& sad)
-{
- unrollFunc_8<1>(fenc, fencstride, fref, frefstride, sad);
- unrollFunc_8<size - 1>(fenc + fencstride, fencstride, fref + frefstride, frefstride, sad);
-}
-
-template<>
-ALWAYSINLINE void unrollFunc_8<1>(pixel *fenc, intptr_t, pixel *fref, intptr_t, Vec8us& sad)
-{
- Vec16uc m1, n1;
-
- m1.load_a(fenc);
- n1.load(fref);
- sad.addSumAbsDiff(m1, n1);
-}
-
+#ifdef X86_64
template<int ly>
int sad_8(pixel * fenc, intptr_t fencstride, pixel * fref, intptr_t frefstride)
{
- Vec4i sum(0);
- Vec8us sad;
- int max_iterators = (ly >> 4) << 4;
- int row;
-
- if (ly < 16)
+ assert((ly % 4) == 0);
+ __m128i sum0 = _mm_setzero_si128();
+ __m128i sum1 = _mm_setzero_si128();
+ __m128i T00, T01, T02, T03;
+ __m128i T10, T11, T12, T13;
+ __m128i T20, T21;
+
+ if (ly == 4)
{
- sad = 0;
- unrollFunc_8<ly>(fenc, fencstride, fref, frefstride, sad);
- sum += extend_low(sad);
- return horizontal_add(sum);
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (0) * fencstride));
+ T01 = _mm_loadl_epi64((__m128i*)(fenc + (1) * fencstride));
+ T01 = _mm_unpacklo_epi64(T00, T01);
+ T02 = _mm_loadl_epi64((__m128i*)(fenc + (2) * fencstride));
+ T03 = _mm_loadl_epi64((__m128i*)(fenc + (3) * fencstride));
+ T03 = _mm_unpacklo_epi64(T02, T03);
+
+ T10 = _mm_loadl_epi64((__m128i*)(fref + (0) * frefstride));
+ T11 = _mm_loadl_epi64((__m128i*)(fref + (1) * frefstride));
+ T11 = _mm_unpacklo_epi64(T10, T11);
+ T12 = _mm_loadl_epi64((__m128i*)(fref + (2) * frefstride));
+ T13 = _mm_loadl_epi64((__m128i*)(fref + (3) * frefstride));
+ T13 = _mm_unpacklo_epi64(T12, T13);
+ T20 = _mm_sad_epu8(T01, T11);
+ T21 = _mm_sad_epu8(T03, T13);
+
+ sum0 = _mm_add_epi32(sum0, T20);
+ sum1 = _mm_add_epi32(sum1, T21);
}
- for (row = 0; row < max_iterators; row += 16)
+ else if (ly == 8)
{
- sad = 0;
- unrollFunc_8<16>(fenc, fencstride, fref, frefstride, sad);
- sum += extend_low(sad);
- fenc += fencstride * 16;
- fref += frefstride * 16;
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (0) * fencstride));
+ T01 = _mm_loadl_epi64((__m128i*)(fenc + (1) * fencstride));
+ T01 = _mm_unpacklo_epi64(T00, T01);
+ T02 = _mm_loadl_epi64((__m128i*)(fenc + (2) * fencstride));
+ T03 = _mm_loadl_epi64((__m128i*)(fenc + (3) * fencstride));
+ T03 = _mm_unpacklo_epi64(T02, T03);
+
+ T10 = _mm_loadl_epi64((__m128i*)(fref + (0) * frefstride));
+ T11 = _mm_loadl_epi64((__m128i*)(fref + (1) * frefstride));
+ T11 = _mm_unpacklo_epi64(T10, T11);
+ T12 = _mm_loadl_epi64((__m128i*)(fref + (2) * frefstride));
+ T13 = _mm_loadl_epi64((__m128i*)(fref + (3) * frefstride));
+ T13 = _mm_unpacklo_epi64(T12, T13);
+ T20 = _mm_sad_epu8(T01, T11);
+ T21 = _mm_sad_epu8(T03, T13);
+
+ sum0 = _mm_add_epi32(sum0, T20);
+ sum1 = _mm_add_epi32(sum1, T21);
+
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (4) * fencstride));
+ T01 = _mm_loadl_epi64((__m128i*)(fenc + (5) * fencstride));
+ T01 = _mm_unpacklo_epi64(T00, T01);
+ T02 = _mm_loadl_epi64((__m128i*)(fenc + (6) * fencstride));
+ T03 = _mm_loadl_epi64((__m128i*)(fenc + (7) * fencstride));
+ T03 = _mm_unpacklo_epi64(T02, T03);
+
+ T10 = _mm_loadl_epi64((__m128i*)(fref + (4) * frefstride));
+ T11 = _mm_loadl_epi64((__m128i*)(fref + (5) * frefstride));
+ T11 = _mm_unpacklo_epi64(T10, T11);
+ T12 = _mm_loadl_epi64((__m128i*)(fref + (6) * frefstride));
+ T13 = _mm_loadl_epi64((__m128i*)(fref + (7) * frefstride));
+ T13 = _mm_unpacklo_epi64(T12, T13);
+ T20 = _mm_sad_epu8(T01, T11);
+ T21 = _mm_sad_epu8(T03, T13);
+
+ sum0 = _mm_add_epi32(sum0, T20);
+ sum1 = _mm_add_epi32(sum1, T21);
}
-
- if (ly & 8)
+ else if (ly == 16)
{
- sad = 0;
- unrollFunc_8<8>(fenc, fencstride, fref, frefstride, sad);
- sum += extend_low(sad);
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (0) * fencstride));
+ T01 = _mm_loadl_epi64((__m128i*)(fenc + (1) * fencstride));
+ T01 = _mm_unpacklo_epi64(T00, T01);
+ T02 = _mm_loadl_epi64((__m128i*)(fenc + (2) * fencstride));
+ T03 = _mm_loadl_epi64((__m128i*)(fenc + (3) * fencstride));
+ T03 = _mm_unpacklo_epi64(T02, T03);
+
+ T10 = _mm_loadl_epi64((__m128i*)(fref + (0) * frefstride));
+ T11 = _mm_loadl_epi64((__m128i*)(fref + (1) * frefstride));
+ T11 = _mm_unpacklo_epi64(T10, T11);
+ T12 = _mm_loadl_epi64((__m128i*)(fref + (2) * frefstride));
+ T13 = _mm_loadl_epi64((__m128i*)(fref + (3) * frefstride));
+ T13 = _mm_unpacklo_epi64(T12, T13);
+ T20 = _mm_sad_epu8(T01, T11);
+ T21 = _mm_sad_epu8(T03, T13);
+
+ sum0 = _mm_add_epi32(sum0, T20);
+ sum1 = _mm_add_epi32(sum1, T21);
+
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (4) * fencstride));
+ T01 = _mm_loadl_epi64((__m128i*)(fenc + (5) * fencstride));
+ T01 = _mm_unpacklo_epi64(T00, T01);
+ T02 = _mm_loadl_epi64((__m128i*)(fenc + (6) * fencstride));
+ T03 = _mm_loadl_epi64((__m128i*)(fenc + (7) * fencstride));
+ T03 = _mm_unpacklo_epi64(T02, T03);
+
+ T10 = _mm_loadl_epi64((__m128i*)(fref + (4) * frefstride));
+ T11 = _mm_loadl_epi64((__m128i*)(fref + (5) * frefstride));
+ T11 = _mm_unpacklo_epi64(T10, T11);
+ T12 = _mm_loadl_epi64((__m128i*)(fref + (6) * frefstride));
+ T13 = _mm_loadl_epi64((__m128i*)(fref + (7) * frefstride));
+ T13 = _mm_unpacklo_epi64(T12, T13);
+ T20 = _mm_sad_epu8(T01, T11);
+ T21 = _mm_sad_epu8(T03, T13);
+
+ sum0 = _mm_add_epi32(sum0, T20);
+ sum1 = _mm_add_epi32(sum1, T21);
+
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (8) * fencstride));
+ T01 = _mm_loadl_epi64((__m128i*)(fenc + (9) * fencstride));
+ T01 = _mm_unpacklo_epi64(T00, T01);
+ T02 = _mm_loadl_epi64((__m128i*)(fenc + (10) * fencstride));
+ T03 = _mm_loadl_epi64((__m128i*)(fenc + (11) * fencstride));
+ T03 = _mm_unpacklo_epi64(T02, T03);
+
+ T10 = _mm_loadl_epi64((__m128i*)(fref + (8) * frefstride));
+ T11 = _mm_loadl_epi64((__m128i*)(fref + (9) * frefstride));
+ T11 = _mm_unpacklo_epi64(T10, T11);
+ T12 = _mm_loadl_epi64((__m128i*)(fref + (10) * frefstride));
+ T13 = _mm_loadl_epi64((__m128i*)(fref + (11) * frefstride));
+ T13 = _mm_unpacklo_epi64(T12, T13);
+ T20 = _mm_sad_epu8(T01, T11);
+ T21 = _mm_sad_epu8(T03, T13);
+
+ sum0 = _mm_add_epi32(sum0, T20);
+ sum1 = _mm_add_epi32(sum1, T21);
+
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (12) * fencstride));
+ T01 = _mm_loadl_epi64((__m128i*)(fenc + (13) * fencstride));
+ T01 = _mm_unpacklo_epi64(T00, T01);
+ T02 = _mm_loadl_epi64((__m128i*)(fenc + (14) * fencstride));
+ T03 = _mm_loadl_epi64((__m128i*)(fenc + (15) * fencstride));
+ T03 = _mm_unpacklo_epi64(T02, T03);
+
+ T10 = _mm_loadl_epi64((__m128i*)(fref + (12) * frefstride));
+ T11 = _mm_loadl_epi64((__m128i*)(fref + (13) * frefstride));
+ T11 = _mm_unpacklo_epi64(T10, T11);
+ T12 = _mm_loadl_epi64((__m128i*)(fref + (14) * frefstride));
+ T13 = _mm_loadl_epi64((__m128i*)(fref + (15) * frefstride));
+ T13 = _mm_unpacklo_epi64(T12, T13);
+ T20 = _mm_sad_epu8(T01, T11);
+ T21 = _mm_sad_epu8(T03, T13);
+
+ sum0 = _mm_add_epi32(sum0, T20);
+ sum1 = _mm_add_epi32(sum1, T21);
}
- return horizontal_add(sum);
+ else if ((ly % 8) == 0)
+ {
+ for (int i = 0; i < ly; i += 8)
+ {
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (i + 0) * fencstride));
+ T01 = _mm_loadl_epi64((__m128i*)(fenc + (i + 1) * fencstride));
+ T01 = _mm_unpacklo_epi64(T00, T01);
+ T02 = _mm_loadl_epi64((__m128i*)(fenc + (i + 2) * fencstride));
+ T03 = _mm_loadl_epi64((__m128i*)(fenc + (i + 3) * fencstride));
+ T03 = _mm_unpacklo_epi64(T02, T03);
+
+ T10 = _mm_loadl_epi64((__m128i*)(fref + (i + 0) * frefstride));
+ T11 = _mm_loadl_epi64((__m128i*)(fref + (i + 1) * frefstride));
+ T11 = _mm_unpacklo_epi64(T10, T11);
+ T12 = _mm_loadl_epi64((__m128i*)(fref + (i + 2) * frefstride));
+ T13 = _mm_loadl_epi64((__m128i*)(fref + (i + 3) * frefstride));
+ T13 = _mm_unpacklo_epi64(T12, T13);
+ T20 = _mm_sad_epu8(T01, T11);
+ T21 = _mm_sad_epu8(T03, T13);
+
+ sum0 = _mm_add_epi32(sum0, T20);
+ sum1 = _mm_add_epi32(sum1, T21);
+
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (i + 4) * fencstride));
+ T01 = _mm_loadl_epi64((__m128i*)(fenc + (i + 5) * fencstride));
+ T01 = _mm_unpacklo_epi64(T00, T01);
+ T02 = _mm_loadl_epi64((__m128i*)(fenc + (i + 6) * fencstride));
+ T03 = _mm_loadl_epi64((__m128i*)(fenc + (i + 7) * fencstride));
+ T03 = _mm_unpacklo_epi64(T02, T03);
+
+ T10 = _mm_loadl_epi64((__m128i*)(fref + (i + 4) * frefstride));
+ T11 = _mm_loadl_epi64((__m128i*)(fref + (i + 5) * frefstride));
+ T11 = _mm_unpacklo_epi64(T10, T11);
+ T12 = _mm_loadl_epi64((__m128i*)(fref + (i + 6) * frefstride));
+ T13 = _mm_loadl_epi64((__m128i*)(fref + (i + 7) * frefstride));
+ T13 = _mm_unpacklo_epi64(T12, T13);
+ T20 = _mm_sad_epu8(T01, T11);
+ T21 = _mm_sad_epu8(T03, T13);
+
+ sum0 = _mm_add_epi32(sum0, T20);
+ sum1 = _mm_add_epi32(sum1, T21);
+ }
+ }
+ else
+ {
+ for (int i = 0; i < ly; i += 4)
+ {
+ T00 = _mm_loadl_epi64((__m128i*)(fenc + (i + 0) * fencstride));
+ T01 = _mm_loadl_epi64((__m128i*)(fenc + (i + 1) * fencstride));
+ T01 = _mm_unpacklo_epi64(T00, T01);
+ T02 = _mm_loadl_epi64((__m128i*)(fenc + (i + 2) * fencstride));
+ T03 = _mm_loadl_epi64((__m128i*)(fenc + (i + 3) * fencstride));
+ T03 = _mm_unpacklo_epi64(T02, T03);
+
+ T10 = _mm_loadl_epi64((__m128i*)(fref + (i + 0) * frefstride));
+ T11 = _mm_loadl_epi64((__m128i*)(fref + (i + 1) * frefstride));
+ T11 = _mm_unpacklo_epi64(T10, T11);
+ T12 = _mm_loadl_epi64((__m128i*)(fref + (i + 2) * frefstride));
+ T13 = _mm_loadl_epi64((__m128i*)(fref + (i + 3) * frefstride));
+ T13 = _mm_unpacklo_epi64(T12, T13);
+ T20 = _mm_sad_epu8(T01, T11);
+ T21 = _mm_sad_epu8(T03, T13);
+
+ sum0 = _mm_add_epi32(sum0, T20);
+ sum1 = _mm_add_epi32(sum1, T21);
+ }
+ }
+ // [0 x 0 x]
+ sum0 = _mm_add_epi32(sum0, sum1);
+ sum1 = _mm_shuffle_epi32(sum0, 2);
+ sum0 = _mm_add_epi32(sum0, sum1);
+ return _mm_cvtsi128_si32(sum0);
}
+#else /* ifdef X86_64 */
+
+template<int ly>
+int sad_8(pixel * fenc, intptr_t fencstride, pixel * fref, intptr_t frefstride)
+{
+ assert((ly % 4) == 0);
+
+ __m64 sum0 = _mm_setzero_si64();
+
+ __m64 T00, T01, T02, T03;
+ __m64 T10, T11, T12, T13;
+ __m64 T20, T21, T22, T23;
+
+ if ((ly % 16) == 0)
+ {
+ for (int i = 0; i < ly; i += 16)
+ {
+ T00 = (*(__m64*)(fenc + (i + 0) * fencstride));
+ T01 = (*(__m64*)(fenc + (i + 1) * fencstride));
+ T02 = (*(__m64*)(fenc + (i + 2) * fencstride));
+ T03 = (*(__m64*)(fenc + (i + 3) * fencstride));
+
+ T10 = (*(__m64*)(fref + (i + 0) * frefstride));
+ T11 = (*(__m64*)(fref + (i + 1) * frefstride));
+ T12 = (*(__m64*)(fref + (i + 2) * frefstride));
+ T13 = (*(__m64*)(fref + (i + 3) * frefstride));
+
+ T20 = _mm_sad_pu8(T00, T10);
+ T21 = _mm_sad_pu8(T01, T11);
+ T22 = _mm_sad_pu8(T02, T12);
+ T23 = _mm_sad_pu8(T03, T13);
+
+ sum0 = _mm_add_pi16(sum0, T20);
+ sum0 = _mm_add_pi16(sum0, T21);
+ sum0 = _mm_add_pi16(sum0, T22);
+ sum0 = _mm_add_pi16(sum0, T23);
+
+ T00 = (*(__m64*)(fenc + (i + 4) * fencstride));
+ T01 = (*(__m64*)(fenc + (i + 5) * fencstride));
+ T02 = (*(__m64*)(fenc + (i + 6) * fencstride));
+ T03 = (*(__m64*)(fenc + (i + 7) * fencstride));
+
+ T10 = (*(__m64*)(fref + (i + 4) * frefstride));
+ T11 = (*(__m64*)(fref + (i + 5) * frefstride));
+ T12 = (*(__m64*)(fref + (i + 6) * frefstride));
+ T13 = (*(__m64*)(fref + (i + 7) * frefstride));
+
+ T20 = _mm_sad_pu8(T00, T10);
+ T21 = _mm_sad_pu8(T01, T11);
+ T22 = _mm_sad_pu8(T02, T12);
+ T23 = _mm_sad_pu8(T03, T13);
+
+ sum0 = _mm_add_pi16(sum0, T20);
+ sum0 = _mm_add_pi16(sum0, T21);
+ sum0 = _mm_add_pi16(sum0, T22);
+ sum0 = _mm_add_pi16(sum0, T23);
+
+ T00 = (*(__m64*)(fenc + (i + 8) * fencstride));
+ T01 = (*(__m64*)(fenc + (i + 9) * fencstride));
+ T02 = (*(__m64*)(fenc + (i + 10) * fencstride));
+ T03 = (*(__m64*)(fenc + (i + 11) * fencstride));
+
+ T10 = (*(__m64*)(fref + (i + 8) * frefstride));
+ T11 = (*(__m64*)(fref + (i + 9) * frefstride));
+ T12 = (*(__m64*)(fref + (i + 10) * frefstride));
+ T13 = (*(__m64*)(fref + (i + 11) * frefstride));
+
+ T20 = _mm_sad_pu8(T00, T10);
+ T21 = _mm_sad_pu8(T01, T11);
+ T22 = _mm_sad_pu8(T02, T12);
+ T23 = _mm_sad_pu8(T03, T13);
+
+ sum0 = _mm_add_pi16(sum0, T20);
+ sum0 = _mm_add_pi16(sum0, T21);
+ sum0 = _mm_add_pi16(sum0, T22);
+ sum0 = _mm_add_pi16(sum0, T23);
+
+ T00 = (*(__m64*)(fenc + (i + 12) * fencstride));
+ T01 = (*(__m64*)(fenc + (i + 13) * fencstride));
+ T02 = (*(__m64*)(fenc + (i + 14) * fencstride));
+ T03 = (*(__m64*)(fenc + (i + 15) * fencstride));
+
+ T10 = (*(__m64*)(fref + (i + 12) * frefstride));
+ T11 = (*(__m64*)(fref + (i + 13) * frefstride));
+ T12 = (*(__m64*)(fref + (i + 14) * frefstride));
+ T13 = (*(__m64*)(fref + (i + 15) * frefstride));
+
+ T20 = _mm_sad_pu8(T00, T10);
+ T21 = _mm_sad_pu8(T01, T11);
+ T22 = _mm_sad_pu8(T02, T12);
+ T23 = _mm_sad_pu8(T03, T13);
+
+ sum0 = _mm_add_pi16(sum0, T20);
+ sum0 = _mm_add_pi16(sum0, T21);
+ sum0 = _mm_add_pi16(sum0, T22);
+ sum0 = _mm_add_pi16(sum0, T23);
+ }
+ }
+ else if ((ly % 8) == 0)
+ {
+ for (int i = 0; i < ly; i += 8)
+ {
+ T00 = (*(__m64*)(fenc + (i + 0) * fencstride));
+ T01 = (*(__m64*)(fenc + (i + 1) * fencstride));
+ T02 = (*(__m64*)(fenc + (i + 2) * fencstride));
+ T03 = (*(__m64*)(fenc + (i + 3) * fencstride));
+
+ T10 = (*(__m64*)(fref + (i + 0) * frefstride));
+ T11 = (*(__m64*)(fref + (i + 1) * frefstride));
+ T12 = (*(__m64*)(fref + (i + 2) * frefstride));
+ T13 = (*(__m64*)(fref + (i + 3) * frefstride));
+
+ T20 = _mm_sad_pu8(T00, T10);
+ T21 = _mm_sad_pu8(T01, T11);
+ T22 = _mm_sad_pu8(T02, T12);
+ T23 = _mm_sad_pu8(T03, T13);
+
+ sum0 = _mm_add_pi16(sum0, T20);
+ sum0 = _mm_add_pi16(sum0, T21);
+ sum0 = _mm_add_pi16(sum0, T22);
+ sum0 = _mm_add_pi16(sum0, T23);
+
+ T00 = (*(__m64*)(fenc + (i + 4) * fencstride));
+ T01 = (*(__m64*)(fenc + (i + 5) * fencstride));
+ T02 = (*(__m64*)(fenc + (i + 6) * fencstride));
+ T03 = (*(__m64*)(fenc + (i + 7) * fencstride));
+
+ T10 = (*(__m64*)(fref + (i + 4) * frefstride));
+ T11 = (*(__m64*)(fref + (i + 5) * frefstride));
+ T12 = (*(__m64*)(fref + (i + 6) * frefstride));
+ T13 = (*(__m64*)(fref + (i + 7) * frefstride));
+
+ T20 = _mm_sad_pu8(T00, T10);
+ T21 = _mm_sad_pu8(T01, T11);
+ T22 = _mm_sad_pu8(T02, T12);
+ T23 = _mm_sad_pu8(T03, T13);
+
+ sum0 = _mm_add_pi16(sum0, T20);
+ sum0 = _mm_add_pi16(sum0, T21);
+ sum0 = _mm_add_pi16(sum0, T22);
+ sum0 = _mm_add_pi16(sum0, T23);
+ }
+ }
+ else
+ {
+ for (int i = 0; i < ly; i += 4)
+ {
+ T00 = (*(__m64*)(fenc + (i + 0) * fencstride));
+ T01 = (*(__m64*)(fenc + (i + 1) * fencstride));
+ T02 = (*(__m64*)(fenc + (i + 2) * fencstride));
+ T03 = (*(__m64*)(fenc + (i + 3) * fencstride));
+
+ T10 = (*(__m64*)(fref + (i + 0) * frefstride));
+ T11 = (*(__m64*)(fref + (i + 1) * frefstride));
+ T12 = (*(__m64*)(fref + (i + 2) * frefstride));
+ T13 = (*(__m64*)(fref + (i + 3) * frefstride));
+
+ T20 = _mm_sad_pu8(T00, T10);
+ T21 = _mm_sad_pu8(T01, T11);
+ T22 = _mm_sad_pu8(T02, T12);
+ T23 = _mm_sad_pu8(T03, T13);
+
+ sum0 = _mm_add_pi16(sum0, T20);
+ sum0 = _mm_add_pi16(sum0, T21);
+ sum0 = _mm_add_pi16(sum0, T22);
+ sum0 = _mm_add_pi16(sum0, T23);
+ }
+ }
+ // 8 * 255 -> 11 bits x 8 -> 14 bits
+ int sum = _m_to_int(sum0);
+ return sum;
+}
+
+#endif /* ifdef X86_64 */
+
template<int ly>
int sad_12(pixel * fenc, intptr_t fencstride, pixel * fref, intptr_t frefstride)
{
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