EMMS() is not in sparc. 

diff --git a/gfx/ycbcr/yuv_convert.cpp b/gfx/ycbcr/yuv_convert.cpp
--- a/gfx/ycbcr/yuv_convert.cpp
+++ b/gfx/ycbcr/yuv_convert.cpp
@@ -105,9 +105,11 @@
     }
   }
 
+#ifdef ARCH_CPU_X86_FAMILY
   // MMX used for FastConvertYUVToRGB32Row requires emms instruction.
   if (has_sse)
     EMMS();
+#endif
 }
 
 // C version does 8 at a time to mimic MMX code
@@ -348,9 +350,12 @@
 #endif
     }
   }
+
+#ifdef ARCH_CPU_X86_FAMILY
   // MMX used for FastConvertYUVToRGB32Row and FilterRows requires emms.
   if (has_mmx)
     EMMS();
+#endif
 }
 
 }  // namespace gfx