cfgbuild.c: Use rtx_insn

gcc/
2014-08-21  David Malcolm  <dmalcolm@redhat.com>

	* cfgbuild.c (make_edges): Strengthen local "insn" from rtx to
	rtx_insn *.
	(purge_dead_tablejump_edges): Likewise.
	(find_bb_boundaries): Likewise for locals "insn", "end",
	"flow_transfer_insn".

From-SVN: r214291

gcc/ChangeLog

 2014-08-21  David Malcolm  <dmalcolm@redhat.com>
 
+	* cfgbuild.c (make_edges): Strengthen local "insn" from rtx to
+	rtx_insn *.
+	(purge_dead_tablejump_edges): Likewise.
+	(find_bb_boundaries): Likewise for locals "insn", "end",
+	"flow_transfer_insn".
+
+2014-08-21  David Malcolm  <dmalcolm@redhat.com>
+
 	* caller-save.c (save_call_clobbered_regs): Strengthen locals
 	"ins" and "prev" from rtx to rtx_insn *.
 

gcc/cfgbuild.c

@@ -218,7 +218,8 @@ make_edges (basic_block min, basic_block max, int update_p)
 
   FOR_BB_BETWEEN (bb, min, max->next_bb, next_bb)
     {
-      rtx insn, x;
+      rtx_insn *insn;
+      rtx x;
       enum rtx_code code;
       edge e;
       edge_iterator ei;
@@ -399,7 +400,8 @@ mark_tablejump_edge (rtx label)
 static void
 purge_dead_tablejump_edges (basic_block bb, rtx table)
 {
-  rtx insn = BB_END (bb), tmp;
+  rtx_insn *insn = BB_END (bb);
+  rtx tmp;
   rtvec vec;
   int j;
   edge_iterator ei;
@@ -443,10 +445,10 @@ static void
 find_bb_boundaries (basic_block bb)
 {
   basic_block orig_bb = bb;
-  rtx insn = BB_HEAD (bb);
-  rtx end = BB_END (bb), x;
+  rtx_insn *insn = BB_HEAD (bb);
+  rtx_insn *end = BB_END (bb), *x;
   rtx_jump_table_data *table;
-  rtx flow_transfer_insn = NULL_RTX;
+  rtx_insn *flow_transfer_insn = NULL;
   edge fallthru = NULL;
 
   if (insn == BB_END (bb))
@@ -480,7 +482,7 @@ find_bb_boundaries (basic_block bb)
 
 	  bb = fallthru->dest;
 	  remove_edge (fallthru);
-	  flow_transfer_insn = NULL_RTX;
+	  flow_transfer_insn = NULL;
 	  if (code == CODE_LABEL && LABEL_ALT_ENTRY_P (insn))
 	    make_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun), bb, 0);
 	}