diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 58735a14cdb..783fd914f50 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2008-01-30  Silvius Rus  <rus@google.com>
+
+	* config/i386/xmmintrin.h (_mm_prefetch): Add const to first arg.
+
 2008-01-30  Jan Hubicka  <jh@suse.cz>
 
 	PR target/34982
diff --git a/gcc/config/i386/xmmintrin.h b/gcc/config/i386/xmmintrin.h
index 18b659b2483..cfe55ef28e8 100644
--- a/gcc/config/i386/xmmintrin.h
+++ b/gcc/config/i386/xmmintrin.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007
+/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008
    Free Software Foundation, Inc.
 
    This file is part of GCC.
@@ -1193,7 +1193,7 @@ _m_psadbw (__m64 __A, __m64 __B)
    processor.  The selector I specifies the type of prefetch operation.  */
 #ifdef __OPTIMIZE__
 static __inline void __attribute__((__always_inline__, __artificial__))
-_mm_prefetch (void *__P, enum _mm_hint __I)
+_mm_prefetch (const void *__P, enum _mm_hint __I)
 {
   __builtin_prefetch (__P, 0, __I);
 }