commit da6193b1fcc1dfab27f4c36917864f2f2c41cf3e
Author: Matt Turner <mattst88@gmail.com>
Date:   Sun May 27 13:01:57 2012 -0400

    mmx: add missing _mm_empty calls
    
    Fixes spurious test failures on x86-32.

diff --git a/pixman/pixman-mmx.c b/pixman/pixman-mmx.c
index bb125bf..6e292c6 100644
--- a/pixman/pixman-mmx.c
+++ b/pixman/pixman-mmx.c
@@ -2232,6 +2232,8 @@ mmx_composite_src_x888_0565 (pixman_implementation_t *imp,
 	    w--;
 	}
     }
+
+    _mm_empty ();
 }
 
 static void
@@ -3542,6 +3544,7 @@ mmx_fetch_x8r8g8b8 (pixman_iter_t *iter, const uint32_t *mask)
 	w--;
     }
 
+    _mm_empty ();
     return iter->buffer;
 }
 
@@ -3585,6 +3588,7 @@ mmx_fetch_r5g6b5 (pixman_iter_t *iter, const uint32_t *mask)
 	w--;
     }
 
+    _mm_empty ();
     return iter->buffer;
 }
 
@@ -3630,6 +3634,7 @@ mmx_fetch_a8 (pixman_iter_t *iter, const uint32_t *mask)
 	w--;
     }
 
+    _mm_empty ();
     return iter->buffer;
 }