[x265] [PATCH] pixel8.inc: sad_x3_4 integrated faster MMX code for 32-bit build

praveen at multicorewareinc.com praveen at multicorewareinc.com
Sun Aug 25 07:16:52 CEST 2013


# HG changeset patch
# User praveentiwari
# Date 1377407801 -19800
# Node ID 2d9f2ffb4b5da6e1a1f5a156ee26c2747161a749
# Parent  5e31b5b7fbe5c908d4545d4db526aebca16d0fa2
pixel8.inc: sad_x3_4 integrated faster MMX code for 32-bit build

diff -r 5e31b5b7fbe5 -r 2d9f2ffb4b5d source/common/vec/pixel8.inc
--- a/source/common/vec/pixel8.inc	Sun Aug 25 10:37:56 2013 +0530
+++ b/source/common/vec/pixel8.inc	Sun Aug 25 10:46:41 2013 +0530
@@ -1316,6 +1316,7 @@
 }
 
 #if INSTRSET >= X265_CPU_LEVEL_SSE41
+#ifdef X86_64
 template<int ly>
 void sad_x3_4(pixel *fenc, pixel *fref1, pixel *fref2, pixel *fref3, intptr_t frefstride, int *res)
 {
@@ -1821,6 +1822,368 @@
     }
 }
 
+#else /* ifdef X86_64 */
+template<int ly>
+void sad_x3_4(pixel *fenc, pixel *fref1, pixel *fref2, pixel *fref3, intptr_t frefstride, int *res)
+{
+    assert((ly % 4) == 0);
+
+    __m64 sum0 = _mm_setzero_si64();
+    __m64 sum1 = _mm_setzero_si64();
+    __m64 sum2 = _mm_setzero_si64();
+
+    __m64 T00, T01, T02, T03, T04, T05, T06, T07;
+    __m64 T0, T1, T2, T3, T4, T5, T6, T7;
+    __m64 T10, T11, T12, T13, T14, T15, T16, T17;
+    __m64 T20, T21, T22, T23, T24, T25, T26, T27;
+
+    if ((ly % 16) == 0)
+    {
+        for (int i = 0; i < ly; i += 16)
+        {
+            T00 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 0) * FENC_STRIDE));
+            T01 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 1) * FENC_STRIDE));
+            T02 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 2) * FENC_STRIDE));
+            T03 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 3) * FENC_STRIDE));
+            T04 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 4) * FENC_STRIDE));
+            T05 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 5) * FENC_STRIDE));
+            T06 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 6) * FENC_STRIDE));
+            T07 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 7) * FENC_STRIDE));
+            T0 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 8) * FENC_STRIDE));
+            T1 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 9) * FENC_STRIDE));
+            T2 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 10) * FENC_STRIDE));
+            T3 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 11) * FENC_STRIDE));
+            T4 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 12) * FENC_STRIDE));
+            T5 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 13) * FENC_STRIDE));
+            T6 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 14) * FENC_STRIDE));
+            T7 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 15) * FENC_STRIDE));
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 0) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 1) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 2) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 3) * frefstride));
+            T14 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 4) * frefstride));
+            T15 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 5) * frefstride));
+            T16 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 6) * frefstride));
+            T17 = _mm_cvtsi32_si64(*(int*)(fref1 + (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);
+            T24 = _mm_sad_pu8(T04, T14);
+            T25 = _mm_sad_pu8(T05, T15);
+            T26 = _mm_sad_pu8(T06, T16);
+            T27 = _mm_sad_pu8(T07, T17);
+
+            sum0 = _mm_add_pi16(sum0, T20);
+            sum0 = _mm_add_pi16(sum0, T21);
+            sum0 = _mm_add_pi16(sum0, T22);
+            sum0 = _mm_add_pi16(sum0, T23);
+            sum0 = _mm_add_pi16(sum0, T24);
+            sum0 = _mm_add_pi16(sum0, T25);
+            sum0 = _mm_add_pi16(sum0, T26);
+            sum0 = _mm_add_pi16(sum0, T27);
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 8) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 9) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 10) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 11) * frefstride));
+            T14 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 12) * frefstride));
+            T15 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 13) * frefstride));
+            T16 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 14) * frefstride));
+            T17 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 15) * frefstride));
+
+            T20 = _mm_sad_pu8(T0, T10);
+            T21 = _mm_sad_pu8(T1, T11);
+            T22 = _mm_sad_pu8(T2, T12);
+            T23 = _mm_sad_pu8(T3, T13);
+            T24 = _mm_sad_pu8(T4, T14);
+            T25 = _mm_sad_pu8(T5, T15);
+            T26 = _mm_sad_pu8(T6, T16);
+            T27 = _mm_sad_pu8(T7, T17);
+
+            sum0 = _mm_add_pi16(sum0, T20);
+            sum0 = _mm_add_pi16(sum0, T21);
+            sum0 = _mm_add_pi16(sum0, T22);
+            sum0 = _mm_add_pi16(sum0, T23);
+            sum0 = _mm_add_pi16(sum0, T24);
+            sum0 = _mm_add_pi16(sum0, T25);
+            sum0 = _mm_add_pi16(sum0, T26);
+            sum0 = _mm_add_pi16(sum0, T27);
+            res[0] = _m_to_int(sum0);
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 0) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 1) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 2) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 3) * frefstride));
+            T14 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 4) * frefstride));
+            T15 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 5) * frefstride));
+            T16 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 6) * frefstride));
+            T17 = _mm_cvtsi32_si64(*(int*)(fref2 + (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);
+            T24 = _mm_sad_pu8(T04, T14);
+            T25 = _mm_sad_pu8(T05, T15);
+            T26 = _mm_sad_pu8(T06, T16);
+            T27 = _mm_sad_pu8(T07, T17);
+
+            sum1 = _mm_add_pi16(sum1, T20);
+            sum1 = _mm_add_pi16(sum1, T21);
+            sum1 = _mm_add_pi16(sum1, T22);
+            sum1 = _mm_add_pi16(sum1, T23);
+            sum1 = _mm_add_pi16(sum1, T24);
+            sum1 = _mm_add_pi16(sum1, T25);
+            sum1 = _mm_add_pi16(sum1, T26);
+            sum1 = _mm_add_pi16(sum1, T27);
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 8) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 9) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 10) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 11) * frefstride));
+            T14 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 12) * frefstride));
+            T15 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 13) * frefstride));
+            T16 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 14) * frefstride));
+            T17 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 15) * frefstride));
+
+            T20 = _mm_sad_pu8(T0, T10);
+            T21 = _mm_sad_pu8(T1, T11);
+            T22 = _mm_sad_pu8(T2, T12);
+            T23 = _mm_sad_pu8(T3, T13);
+            T24 = _mm_sad_pu8(T4, T14);
+            T25 = _mm_sad_pu8(T5, T15);
+            T26 = _mm_sad_pu8(T6, T16);
+            T27 = _mm_sad_pu8(T7, T17);
+
+            sum1 = _mm_add_pi16(sum1, T20);
+            sum1 = _mm_add_pi16(sum1, T21);
+            sum1 = _mm_add_pi16(sum1, T22);
+            sum1 = _mm_add_pi16(sum1, T23);
+            sum1 = _mm_add_pi16(sum1, T24);
+            sum1 = _mm_add_pi16(sum1, T25);
+            sum1 = _mm_add_pi16(sum1, T26);
+            sum1 = _mm_add_pi16(sum1, T27);
+            res[1] = _m_to_int(sum1);
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 0) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 1) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 2) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 3) * frefstride));
+            T14 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 4) * frefstride));
+            T15 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 5) * frefstride));
+            T16 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 6) * frefstride));
+            T17 = _mm_cvtsi32_si64(*(int*)(fref3 + (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);
+            T24 = _mm_sad_pu8(T04, T14);
+            T25 = _mm_sad_pu8(T05, T15);
+            T26 = _mm_sad_pu8(T06, T16);
+            T27 = _mm_sad_pu8(T07, T17);
+
+            sum2 = _mm_add_pi16(sum2, T20);
+            sum2 = _mm_add_pi16(sum2, T21);
+            sum2 = _mm_add_pi16(sum2, T22);
+            sum2 = _mm_add_pi16(sum2, T23);
+            sum2 = _mm_add_pi16(sum2, T24);
+            sum2 = _mm_add_pi16(sum2, T25);
+            sum2 = _mm_add_pi16(sum2, T26);
+            sum2 = _mm_add_pi16(sum2, T27);
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 8) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 9) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 10) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 11) * frefstride));
+            T14 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 12) * frefstride));
+            T15 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 13) * frefstride));
+            T16 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 14) * frefstride));
+            T17 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 15) * frefstride));
+
+            T20 = _mm_sad_pu8(T0, T10);
+            T21 = _mm_sad_pu8(T1, T11);
+            T22 = _mm_sad_pu8(T2, T12);
+            T23 = _mm_sad_pu8(T3, T13);
+            T24 = _mm_sad_pu8(T4, T14);
+            T25 = _mm_sad_pu8(T5, T15);
+            T26 = _mm_sad_pu8(T6, T16);
+            T27 = _mm_sad_pu8(T7, T17);
+
+            sum2 = _mm_add_pi16(sum2, T20);
+            sum2 = _mm_add_pi16(sum2, T21);
+            sum2 = _mm_add_pi16(sum2, T22);
+            sum2 = _mm_add_pi16(sum2, T23);
+            sum2 = _mm_add_pi16(sum2, T24);
+            sum2 = _mm_add_pi16(sum2, T25);
+            sum2 = _mm_add_pi16(sum2, T26);
+            sum2 = _mm_add_pi16(sum2, T27);
+            res[2] = _m_to_int(sum2);
+        }
+    }
+    else if ((ly % 8) == 0)
+    {
+        for (int i = 0; i < ly; i += 8)
+        {
+            T00 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 0) * FENC_STRIDE));
+            T01 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 1) * FENC_STRIDE));
+            T02 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 2) * FENC_STRIDE));
+            T03 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 3) * FENC_STRIDE));
+            T04 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 4) * FENC_STRIDE));
+            T05 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 5) * FENC_STRIDE));
+            T06 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 6) * FENC_STRIDE));
+            T07 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 7) * FENC_STRIDE));
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 0) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 1) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 2) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 3) * frefstride));
+            T14 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 4) * frefstride));
+            T15 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 5) * frefstride));
+            T16 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 6) * frefstride));
+            T17 = _mm_cvtsi32_si64(*(int*)(fref1 + (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);
+            T24 = _mm_sad_pu8(T04, T14);
+            T25 = _mm_sad_pu8(T05, T15);
+            T26 = _mm_sad_pu8(T06, T16);
+            T27 = _mm_sad_pu8(T07, T17);
+
+            sum0 = _mm_add_pi16(sum0, T20);
+            sum0 = _mm_add_pi16(sum0, T21);
+            sum0 = _mm_add_pi16(sum0, T22);
+            sum0 = _mm_add_pi16(sum0, T23);
+            sum0 = _mm_add_pi16(sum0, T24);
+            sum0 = _mm_add_pi16(sum0, T25);
+            sum0 = _mm_add_pi16(sum0, T26);
+            sum0 = _mm_add_pi16(sum0, T27);
+            res[0] = _m_to_int(sum0);
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 0) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 1) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 2) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 3) * frefstride));
+            T14 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 4) * frefstride));
+            T15 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 5) * frefstride));
+            T16 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 6) * frefstride));
+            T17 = _mm_cvtsi32_si64(*(int*)(fref2 + (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);
+            T24 = _mm_sad_pu8(T04, T14);
+            T25 = _mm_sad_pu8(T05, T15);
+            T26 = _mm_sad_pu8(T06, T16);
+            T27 = _mm_sad_pu8(T07, T17);
+
+            sum1 = _mm_add_pi16(sum1, T20);
+            sum1 = _mm_add_pi16(sum1, T21);
+            sum1 = _mm_add_pi16(sum1, T22);
+            sum1 = _mm_add_pi16(sum1, T23);
+            sum1 = _mm_add_pi16(sum1, T24);
+            sum1 = _mm_add_pi16(sum1, T25);
+            sum1 = _mm_add_pi16(sum1, T26);
+            sum1 = _mm_add_pi16(sum1, T27);
+            res[1] = _m_to_int(sum1);
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 0) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 1) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 2) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 3) * frefstride));
+            T14 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 4) * frefstride));
+            T15 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 5) * frefstride));
+            T16 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 6) * frefstride));
+            T17 = _mm_cvtsi32_si64(*(int*)(fref3 + (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);
+            T24 = _mm_sad_pu8(T04, T14);
+            T25 = _mm_sad_pu8(T05, T15);
+            T26 = _mm_sad_pu8(T06, T16);
+            T27 = _mm_sad_pu8(T07, T17);
+
+            sum2 = _mm_add_pi16(sum2, T20);
+            sum2 = _mm_add_pi16(sum2, T21);
+            sum2 = _mm_add_pi16(sum2, T22);
+            sum2 = _mm_add_pi16(sum2, T23);
+            sum2 = _mm_add_pi16(sum2, T24);
+            sum2 = _mm_add_pi16(sum2, T25);
+            sum2 = _mm_add_pi16(sum2, T26);
+            sum2 = _mm_add_pi16(sum2, T27);
+            res[2] = _m_to_int(sum2);
+        }
+    }
+    else
+    {
+        for (int i = 0; i < ly; i += 4)
+        {
+            T00 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 0) * FENC_STRIDE));
+            T01 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 1) * FENC_STRIDE));
+            T02 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 2) * FENC_STRIDE));
+            T03 = _mm_cvtsi32_si64(*(int*)(fenc + (i + 3) * FENC_STRIDE));
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 0) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 1) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref1 + (i + 2) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref1 + (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);
+            res[0] = _m_to_int(sum0);
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 0) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 1) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref2 + (i + 2) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref2 + (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);
+
+            sum1 = _mm_add_pi16(sum1, T20);
+            sum1 = _mm_add_pi16(sum1, T21);
+            sum1 = _mm_add_pi16(sum1, T22);
+            sum1 = _mm_add_pi16(sum1, T23);
+            res[1] = _m_to_int(sum1);
+
+            T10 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 0) * frefstride));
+            T11 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 1) * frefstride));
+            T12 = _mm_cvtsi32_si64(*(int*)(fref3 + (i + 2) * frefstride));
+            T13 = _mm_cvtsi32_si64(*(int*)(fref3 + (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);
+
+            sum2 = _mm_add_pi16(sum2, T20);
+            sum2 = _mm_add_pi16(sum2, T21);
+            sum2 = _mm_add_pi16(sum2, T22);
+            sum2 = _mm_add_pi16(sum2, T23);
+            res[2] = _m_to_int(sum2);
+        }
+    }
+}
+
+#endif /* ifdef X86_64 */
+
 template<int ly>
 void sad_x3_8(pixel *fenc, pixel *fref1, pixel *fref2, pixel *fref3, intptr_t frefstride, int *res)
 {


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