Xfermode: SSE2 implementation of multiply_modeproc

gyp/opts.gyp

 # Gyp file for opts projects
 {
   'targets': [
     # Due to an unfortunate intersection of lameness between gcc and gyp,
     # we have to build the *_SSE2.cpp files in a separate target.  The
     # gcc lameness is that, in order to compile SSE2 intrinsics code, it
     # must be passed the -msse2 flag.  However, with this flag, it may
     # emit SSE2 instructions even for scalar code, such as the CPUID
     # test used to test for the presence of SSE2.  So that, and all other
     # code must be compiled *without* -msse2.  The gyp lameness is that it
@@ skipping 38 matching lines @@
           ],
           'sources': [
             '../src/opts/opts_check_SSE2.cpp',
             '../src/opts/SkBitmapProcState_opts_SSE2.cpp',
             '../src/opts/SkBitmapFilter_opts_SSE2.cpp',
             '../src/opts/SkBlitRow_opts_SSE2.cpp',
             '../src/opts/SkBlitRect_opts_SSE2.cpp',
             '../src/opts/SkBlurImage_opts_SSE2.cpp',
             '../src/opts/SkMorphology_opts_SSE2.cpp',
             '../src/opts/SkUtils_opts_SSE2.cpp',
-            '../src/opts/SkXfermode_opts_none.cpp',
+            '../src/opts/SkXfermode_opts_SSE2.cpp',
           ],
         }],
         [ 'skia_arch_type == "arm" and arm_version >= 7', {
           # The assembly uses the frame pointer register (r7 in Thumb/r11 in
           # ARM), the compiler doesn't like that.
           'cflags!': [
             '-fno-omit-frame-pointer',
             '-mapcs-frame',
             '-mapcs',
           ],
@@ skipping 128 matching lines @@
         '../src/opts/SkBitmapProcState_matrix_neon.h',
         '../src/opts/SkBlitMask_opts_arm_neon.cpp',
         '../src/opts/SkBlitRow_opts_arm_neon.cpp',
         '../src/opts/SkBlurImage_opts_neon.cpp',
         '../src/opts/SkMorphology_opts_neon.cpp',
         '../src/opts/SkXfermode_opts_arm_neon.cpp',
       ],
     },
   ],
 }