i386.c (ix86_expand_clrmem): Properly call gen_strset for 64bit target.

2004-08-07  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (ix86_expand_clrmem): Properly call
	gen_strset for 64bit target.

From-SVN: r85673

gcc/ChangeLog

+2004-08-07  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/i386.c (ix86_expand_clrmem): Properly call
+	gen_strset for 64bit target.
+
 2004-08-07  Olivier Hainque  <hainque@act-europe.fr>
 
 	* config/vxworks.h (HANDLE_SYSV_PRAGMA): Remove definition.

gcc/config/i386/i386.c

@@ -11569,7 +11569,10 @@ ix86_expand_clrmem (rtx dst, rtx count_exp, rtx align_exp)
 		rtx mem = adjust_automodify_address_nv (dst,
 							GET_MODE (zeroreg),
 							destreg, offset);
-		emit_insn (gen_strset (destreg, mem, zeroreg));
+		emit_insn (gen_strset (destreg, mem,
+				       (TARGET_64BIT
+					? gen_rtx_SUBREG (SImode, zeroreg, 0)
+					: zeroreg)));
 		offset += size;
 	      }
 	  else