last_call_insn returns an rtx_call_insn *

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

	* emit-rtl.c (last_call_insn): Strengthen return type from rtx to
	rtx_call_insn *.
	* rtl.h (is_a_helper <rtx_call_insn *>::test): New overload,
	accepting an rtx_insn *.
	(last_call_insn): Strengthen return type from rtx to
	rtx_call_insn *.

From-SVN: r214186

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6b1705e..d6c75e5 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,14 @@
 2014-08-19  David Malcolm  <dmalcolm@redhat.com>
 
+       * emit-rtl.c (last_call_insn): Strengthen return type from rtx to
+       rtx_call_insn *.
+       * rtl.h (is_a_helper <rtx_call_insn *>::test): New overload,
+       accepting an rtx_insn *.
+       (last_call_insn): Strengthen return type from rtx to
+       rtx_call_insn *.
+
+2014-08-19  David Malcolm  <dmalcolm@redhat.com>
+
        * rtl.h (delete_trivially_dead_insns): Strengthen initial param
        "insns" from rtx to rtx_insn *.
        * cse.c (delete_trivially_dead_insns): Likewise, also do it for

diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index decd5d6..5b68b1e 100644 (file)
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -3382,17 +3382,17 @@ prev_real_insn (rtx insn)
 /* Return the last CALL_INSN in the current list, or 0 if there is none.
    This routine does not look inside SEQUENCEs.  */
 
-rtx
+rtx_call_insn *
 last_call_insn (void)
 {
-  rtx insn;
+  rtx_insn *insn;
 
   for (insn = get_last_insn ();
        insn && !CALL_P (insn);
        insn = PREV_INSN (insn))
     ;
 
-  return insn;
+  return safe_as_a <rtx_call_insn *> (insn);
 }
 
 /* Find the next insn after INSN that really does something.  This routine

diff --git a/gcc/rtl.h b/gcc/rtl.h
index 84b8870..fea6637 100644 (file)
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -734,6 +734,14 @@ is_a_helper <rtx_call_insn *>::test (rtx rt)
 template <>
 template <>
 inline bool
+is_a_helper <rtx_call_insn *>::test (rtx_insn *insn)
+{
+  return CALL_P (insn);
+}
+
+template <>
+template <>
+inline bool
 is_a_helper <rtx_jump_table_data *>::test (rtx rt)
 {
   return JUMP_TABLE_DATA_P (rt);
@@ -2416,7 +2424,7 @@ extern rtx gen_use (rtx);
 extern rtx emit_use (rtx);
 extern rtx make_insn_raw (rtx);
 extern void add_function_usage_to (rtx, rtx);
-extern rtx last_call_insn (void);
+extern rtx_call_insn *last_call_insn (void);
 extern rtx_insn *previous_insn (rtx);
 extern rtx_insn *next_insn (rtx);
 extern rtx_insn *prev_nonnote_insn (rtx);