rtl.h (NOTE_DATA): Refer to whole union.

	* rtl.h (NOTE_DATA): Refer to whole union.
	* emit-rtl.c (emit_note): Use memset to clear NOTE_DATA.

From-SVN: r68874

gcc/ChangeLog

+2003-07-02  Nathan Sidwell  <nathan@codesourcery.com>
+
+	* rtl.h (NOTE_DATA): Refer to whole union.
+	* emit-rtl.c (emit_note): Use memset to clear NOTE_DATA.
+
 2003-07-03  Eric Botcazou  <ebotcazou@libertysurf.fr>
 
 	PR optimization/11381

gcc/emit-rtl.c

@@ -4733,7 +4733,7 @@ emit_note (int note_no)
   note = rtx_alloc (NOTE);
   INSN_UID (note) = cur_insn_uid++;
   NOTE_LINE_NUMBER (note) = note_no;
-  NOTE_DATA (note) = 0;
+  memset (&NOTE_DATA (note), 0, sizeof (NOTE_DATA (note)));
   BLOCK_FOR_INSN (note) = NULL;
   add_insn (note);
   return note;

gcc/rtl.h

@@ -778,7 +778,7 @@ extern const char * const reg_note_name[];
    */
 
 /* Opaque data.  */
-#define NOTE_DATA(INSN)	        XCINT (INSN, 4, NOTE)
+#define NOTE_DATA(INSN)	        RTL_CHECKC1 (INSN, 4, NOTE)
 #define NOTE_SOURCE_FILE(INSN)	XCSTR (INSN, 4, NOTE)
 #define NOTE_BLOCK(INSN)	XCTREE (INSN, 4, NOTE)
 #define NOTE_EH_HANDLER(INSN)	XCINT (INSN, 4, NOTE)