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Return types of unlink_insn_chain and duplicate_insn_chain 

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

	* rtl.h (unlink_insn_chain): Strengthen return type from rtx to
	rtx_insn *.
	(duplicate_insn_chain): Likewise.
	* cfgrtl.c (unlink_insn_chain): Strengthen return type from rtx to
	rtx_insn *, also for locals "prevfirst" and "nextlast".  Add a
	checked cast for now (until we can strengthen the params in the
	same way).
	(duplicate_insn_chain): Likewise.

From-SVN: r214197
This commit is contained in:
David Malcolm 2014-08-19 21:22:25 +00:00 committed by David Malcolm
parent 75b46023e7
commit a90c614ae3
3 changed files with 19 additions and 8 deletions
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11
gcc/ChangeLog
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@ -1,3 +1,14 @@
2014-08-19 David Malcolm <dmalcolm@redhat.com>
* rtl.h (unlink_insn_chain): Strengthen return type from rtx to
rtx_insn *.
(duplicate_insn_chain): Likewise.
* cfgrtl.c (unlink_insn_chain): Strengthen return type from rtx to
rtx_insn *, also for locals "prevfirst" and "nextlast". Add a
checked cast for now (until we can strengthen the params in the
same way).
(duplicate_insn_chain): Likewise.
2014-08-19 David Malcolm <dmalcolm@redhat.com>
* rtl.h (next_cc0_user): Strengthen return type from rtx to

12
gcc/cfgrtl.c
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@ -3303,11 +3303,11 @@ fixup_abnormal_edges (void)
/* Cut the insns from FIRST to LAST out of the insns stream. */
rtx
rtx_insn *
unlink_insn_chain (rtx first, rtx last)
{
rtx prevfirst = PREV_INSN (first);
rtx nextlast = NEXT_INSN (last);
rtx_insn *prevfirst = PREV_INSN (first);
rtx_insn *nextlast = NEXT_INSN (last);
SET_PREV_INSN (first) = NULL;
SET_NEXT_INSN (last) = NULL;
@ -3319,7 +3319,7 @@ unlink_insn_chain (rtx first, rtx last)
set_last_insn (prevfirst);
if (!prevfirst)
set_first_insn (nextlast);
return first;
return as_a <rtx_insn *> (first);
}
/* Skip over inter-block insns occurring after BB which are typically
@ -4080,7 +4080,7 @@ cfg_layout_can_duplicate_bb_p (const_basic_block bb)
return true;
}
rtx
rtx_insn *
duplicate_insn_chain (rtx from, rtx to)
{
rtx insn, next, copy;
@ -4166,7 +4166,7 @@ duplicate_insn_chain (rtx from, rtx to)
}
insn = NEXT_INSN (last);
delete_insn (last);
return insn;
return as_a <rtx_insn *> (insn);
}
/* Create a duplicate of the basic block BB. */

4
gcc/rtl.h
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@ -3099,7 +3099,7 @@ extern void delete_insn (rtx);
extern rtx_insn *entry_of_function (void);
extern void emit_insn_at_entry (rtx);
extern void delete_insn_chain (rtx, rtx, bool);
extern rtx unlink_insn_chain (rtx, rtx);
extern rtx_insn *unlink_insn_chain (rtx, rtx);
extern void delete_insn_and_edges (rtx);
extern rtx gen_lowpart_SUBREG (enum machine_mode, rtx);
extern rtx gen_const_mem (enum machine_mode, rtx);
@ -3175,7 +3175,7 @@ extern int fixup_args_size_notes (rtx, rtx, int);
/* In cfgrtl.c */
extern void print_rtl_with_bb (FILE *, const_rtx, int);
extern rtx duplicate_insn_chain (rtx, rtx);
extern rtx_insn *duplicate_insn_chain (rtx, rtx);
/* In expmed.c */
extern void init_expmed (void);