diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f965a4ea114..085bef1a3c7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2012-08-22  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/54347
+	* config/i386/i386.c (ix86_split_to_parts): Replace
+	REAL_VALUE_TO_TARGET_LONG_DOUBLE with real_to_target.
+
 2012-08-22  Richard Guenther  <rguenther@suse.de>
 
 	* tree-vectorizer.c (vectorize_loops): Do not call
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 5da4da2b8a9..a6fc45b047a 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -20743,7 +20743,9 @@ ix86_split_to_parts (rtx operand, rtx *parts, enum machine_mode mode)
 		  parts[2] = gen_int_mode (l[2], SImode);
 		  break;
 		case XFmode:
-		  REAL_VALUE_TO_TARGET_LONG_DOUBLE (r, l);
+		  /* We can't use REAL_VALUE_TO_TARGET_LONG_DOUBLE since
+		     long double may not be 80-bit.  */
+		  real_to_target (l, &r, mode);
 		  parts[2] = gen_int_mode (l[2], SImode);
 		  break;
 		case DFmode: