emit_jump_table_data returns an rtx_jump_table_data *

2014-08-19  David Malcolm  <dmalcolm@redhat.com>

	* emit-rtl.c (emit_jump_table_data): Strengthen return type from
	rtx to rtx_jump_table_data *.  Also for local.
	* rtl.h (emit_jump_table_data): Likewise.

From-SVN: r214193

gcc/ChangeLog

 2014-08-19  David Malcolm  <dmalcolm@redhat.com>
 
+	* emit-rtl.c (emit_jump_table_data): Strengthen return type from
+	rtx to rtx_jump_table_data *.  Also for local.
+	* rtl.h (emit_jump_table_data): Likewise.
+
+2014-08-19  David Malcolm  <dmalcolm@redhat.com>
+
 	* basic-block.h (create_basic_block_structure): Strengthen third
 	param "bb_note" from rtx to rtx_note *.
 	* rtl.h (emit_note_before): Strengthen return type from rtx to

gcc/emit-rtl.c

@@ -4998,10 +4998,11 @@ emit_label (rtx label)
 /* Make an insn of code JUMP_TABLE_DATA
    and add it to the end of the doubly-linked list.  */
 
-rtx
+rtx_jump_table_data *
 emit_jump_table_data (rtx table)
 {
-  rtx jump_table_data = rtx_alloc (JUMP_TABLE_DATA);
+  rtx_jump_table_data *jump_table_data =
+    as_a <rtx_jump_table_data *> (rtx_alloc (JUMP_TABLE_DATA));
   INSN_UID (jump_table_data) = cur_insn_uid++;
   PATTERN (jump_table_data) = table;
   BLOCK_FOR_INSN (jump_table_data) = NULL;

gcc/rtl.h

@@ -2414,7 +2414,7 @@ extern rtx emit_debug_insn (rtx);
 extern rtx emit_jump_insn (rtx);
 extern rtx emit_call_insn (rtx);
 extern rtx emit_label (rtx);
-extern rtx emit_jump_table_data (rtx);
+extern rtx_jump_table_data *emit_jump_table_data (rtx);
 extern rtx emit_barrier (void);
 extern rtx_note *emit_note (enum insn_note);
 extern rtx_note *emit_note_copy (rtx_note *);