The attached patch strengthens both params of fixup_args_size_notes from
rtx to rtx_insn * (eliminating a checked cast), and thus falls under the
pre-approval granted by Jeff here:
https://gcc.gnu.org/ml/gcc-patches/2014-08/msg01310.html
Bootstrapped on x86_64-unknown-linux-gnu (Fedora 20), and has been
rebuilt as part of a config-list.mk build for all working configurations
(albeit with other patches for the latter case).
Committed to trunk as r214930.
Index: gcc/ChangeLog
===================================================================
--- gcc/ChangeLog (revision 214929)
+++ gcc/ChangeLog (revision 214930)
@@ -1,5 +1,14 @@
2014-09-05 David Malcolm <dmalc...@redhat.com>
+ * emit-rtl.c (try_split): Update NULL_RTX to NULL in call to
+ fixup_args_size_notes.
+ * expr.c (fixup_args_size_notes): Strengthen first two params from
+ rtx to rtx_insn *, eliminating a checked cast.
+ * rtl.h (fixup_args_size_notes): Strengthen first two params from
+ rtx to rtx_insn *.
+
+2014-09-05 David Malcolm <dmalc...@redhat.com>
+
* haifa-sched.c (get_ready_element): Strengthen return type from
rtx to rtx_insn *.
* sched-int.h (get_ready_element): Likewise.
Index: gcc/expr.c
===================================================================
--- gcc/expr.c (revision 214929)
+++ gcc/expr.c (revision 214930)
@@ -3953,9 +3953,8 @@
}
int
-fixup_args_size_notes (rtx prev, rtx uncast_last, int end_args_size)
+fixup_args_size_notes (rtx_insn *prev, rtx_insn *last, int end_args_size)
{
- rtx_insn *last = safe_as_a <rtx_insn *> (uncast_last);
int args_size = end_args_size;
bool saw_unknown = false;
rtx_insn *insn;
Index: gcc/emit-rtl.c
===================================================================
--- gcc/emit-rtl.c (revision 214929)
+++ gcc/emit-rtl.c (revision 214930)
@@ -3756,7 +3756,7 @@
#endif
case REG_ARGS_SIZE:
- fixup_args_size_notes (NULL_RTX, insn_last, INTVAL (XEXP (note, 0)));
+ fixup_args_size_notes (NULL, insn_last, INTVAL (XEXP (note, 0)));
break;
case REG_CALL_DECL:
Index: gcc/rtl.h
===================================================================
--- gcc/rtl.h (revision 214929)
+++ gcc/rtl.h (revision 214930)
@@ -3363,7 +3363,7 @@
extern rtx move_by_pieces (rtx, rtx, unsigned HOST_WIDE_INT,
unsigned int, int);
extern HOST_WIDE_INT find_args_size_adjust (rtx);
-extern int fixup_args_size_notes (rtx, rtx, int);
+extern int fixup_args_size_notes (rtx_insn *, rtx_insn *, int);
/* In cfgrtl.c */
extern void print_rtl_with_bb (FILE *, const rtx_insn *, int);
