Fix for AVX2 dither function.

source/row_gcc.cc

 // VERSION 2
 /*
  *  Copyright 2011 The LibYuv Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS. All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
@@ skipping 548 matching lines @@
     "por        %%xmm1,%%xmm0                  \n"
     "packssdw   %%xmm0,%%xmm0                  \n"
     "lea        0x10(%0),%0                    \n"
     "movq       %%xmm0,(%1)                    \n"
     "lea        0x8(%1),%1                     \n"
     "sub        $0x4,%2                        \n"
     "jg        1b                              \n"
   : "+r"(src),  // %0
     "+r"(dst),  // %1
     "+r"(pix)   // %2
-  : "rm"(dither4) // %3
+  : "m"(dither4) // %3
   : "memory", "cc",
     "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
   );
 }
 
 #ifdef HAS_ARGBTORGB565DITHERROW_AVX2
 void ARGBToRGB565DitherRow_AVX2(const uint8* src, uint8* dst,
                                 const uint32 dither4, int pix) {
   asm volatile (
     "vbroadcastss %3,%%xmm6                    \n"
@@ skipping 23 matching lines @@
     "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
     "lea        0x20(%0),%0                    \n"
     "vmovdqu    %%xmm0,(%1)                    \n"
     "lea        0x10(%1),%1                    \n"
     "sub        $0x8,%2                        \n"
     "jg         1b                             \n"
     "vzeroupper                                \n"
   : "+r"(src),  // %0
     "+r"(dst),  // %1
     "+r"(pix)   // %2
-  : "rm"(dither4) // %3
+  : "m"(dither4) // %3
   : "memory", "cc",
     "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
   );
 }
 #endif  // HAS_ARGBTORGB565DITHERROW_AVX2
 
 
 void ARGBToARGB1555Row_SSE2(const uint8* src, uint8* dst, int pix) {
   asm volatile (
     "pcmpeqb   %%xmm4,%%xmm4                   \n"
@@ skipping 4960 matching lines @@
   );
 }
 #endif  // HAS_ARGBLUMACOLORTABLEROW_SSSE3
 
 #endif  // defined(__x86_64__) || defined(__i386__)
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif