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Remove BB_FOOTER scaffolding 

gcc/
	* basic-block.h (struct rtl_bb_info): Strengthen field "footer_"
	from rtx to rtx_insn *.
	(BB_FOOTER): Replace function with access macro.
	(SET_BB_FOOTER): Delete.

	* cfgcleanup.c (try_optimize_cfg): Replace uses of SET_BB_FOOTER
	with BB_FOOTER.
	* cfgrtl.c (try_redirect_by_replacing_jump): Likewise.
	(emit_barrier_after_bb): Likewise.
	(record_effective_endpoints): Likewise.
	(relink_block_chain): Likewise.
	(fixup_fallthru_exit_predecessor): Likewise.
	(cfg_layout_duplicate_bb): Likewise.
	(cfg_layout_split_block): Likewise.
	(cfg_layout_delete_block): Likewise.
	(cfg_layout_merge_blocks): Likewise.
	(BB_FOOTER): Delete function.
	(SET_BB_FOOTER): Delete function.
	* combine.c (update_cfg_for_uncondjump): Replace uses of
	SET_BB_FOOTER with BB_FOOTER.

/
	* rtx-classes-status.txt (TODO): Remove SET_BB_FOOTER.

From-SVN: r214470
This commit is contained in:
David Malcolm 2014-08-25 20:13:26 +00:00 committed by David Malcolm
parent be7457df4d
commit d8ce2eae84
7 changed files with 48 additions and 37 deletions
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4
ChangeLog
View File

@ -1,3 +1,7 @@
2014-08-25 David Malcolm <dmalcolm@redhat.com>
* rtx-classes-status.txt (TODO): Remove SET_BB_FOOTER.
2014-08-25 David Malcolm <dmalcolm@redhat.com>
* rtx-classes-status.txt: Phase 3 (per-file commits within

23
gcc/ChangeLog
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@ -1,3 +1,26 @@
2014-08-25 David Malcolm <dmalcolm@redhat.com>
* basic-block.h (struct rtl_bb_info): Strengthen field "footer_"
from rtx to rtx_insn *.
(BB_FOOTER): Replace function with access macro.
(SET_BB_FOOTER): Delete.
* cfgcleanup.c (try_optimize_cfg): Replace uses of SET_BB_FOOTER
with BB_FOOTER.
* cfgrtl.c (try_redirect_by_replacing_jump): Likewise.
(emit_barrier_after_bb): Likewise.
(record_effective_endpoints): Likewise.
(relink_block_chain): Likewise.
(fixup_fallthru_exit_predecessor): Likewise.
(cfg_layout_duplicate_bb): Likewise.
(cfg_layout_split_block): Likewise.
(cfg_layout_delete_block): Likewise.
(cfg_layout_merge_blocks): Likewise.
(BB_FOOTER): Delete function.
(SET_BB_FOOTER): Delete function.
* combine.c (update_cfg_for_uncondjump): Replace uses of
SET_BB_FOOTER with BB_FOOTER.
2014-08-25 David Malcolm <dmalcolm@redhat.com>
* except.h (struct eh_landing_pad_d): Strengthen field

5
gcc/basic-block.h
View File

@ -127,7 +127,7 @@ struct GTY(()) rtl_bb_info {
/* In CFGlayout mode points to insn notes/jumptables to be placed just before
and after the block. */
rtx header_;
rtx footer_;
rtx_insn *footer_;
};
struct GTY(()) gimple_bb_info {
@ -381,8 +381,7 @@ extern rtx& SET_BB_END (basic_block bb);
extern rtx_insn *BB_HEADER (const_basic_block bb);
extern rtx& SET_BB_HEADER (basic_block bb);
extern rtx_insn *BB_FOOTER (const_basic_block bb);
extern rtx& SET_BB_FOOTER (basic_block bb);
#define BB_FOOTER(B) (B)->il.x.rtl->footer_
/* Special block numbers [markers] for entry and exit.
Neither of them is supposed to hold actual statements. */

6
gcc/cfgcleanup.c
View File

@ -2676,13 +2676,13 @@ try_optimize_cfg (int mode)
{
if (BB_FOOTER (b))
{
SET_BB_FOOTER (e->src) = BB_FOOTER (b);
SET_BB_FOOTER (b) = NULL;
BB_FOOTER (e->src) = BB_FOOTER (b);
BB_FOOTER (b) = NULL;
}
else
{
start_sequence ();
SET_BB_FOOTER (e->src) = emit_barrier ();
BB_FOOTER (e->src) = emit_barrier ();
end_sequence ();
}
}

43
gcc/cfgrtl.c
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@ -1063,7 +1063,7 @@ try_redirect_by_replacing_jump (edge e, basic_block target, bool in_cfglayout)
if (PREV_INSN (insn))
SET_NEXT_INSN (PREV_INSN (insn)) = NEXT_INSN (insn);
else
SET_BB_FOOTER (src) = NEXT_INSN (insn);
BB_FOOTER (src) = NEXT_INSN (insn);
if (NEXT_INSN (insn))
SET_PREV_INSN (NEXT_INSN (insn)) = PREV_INSN (insn);
}
@ -1451,7 +1451,7 @@ emit_barrier_after_bb (basic_block bb)
gcc_assert (current_ir_type () == IR_RTL_CFGRTL
|| current_ir_type () == IR_RTL_CFGLAYOUT);
if (current_ir_type () == IR_RTL_CFGLAYOUT)
SET_BB_FOOTER (bb) = unlink_insn_chain (barrier, barrier);
BB_FOOTER (bb) = unlink_insn_chain (barrier, barrier);
}
/* Like force_nonfallthru below, but additionally performs redirection
@ -3462,7 +3462,7 @@ record_effective_endpoints (void)
PREV_INSN (BB_HEAD (bb)));
end = skip_insns_after_block (bb);
if (NEXT_INSN (BB_END (bb)) && BB_END (bb) != end)
SET_BB_FOOTER (bb) = unlink_insn_chain (NEXT_INSN (BB_END (bb)), end);
BB_FOOTER (bb) = unlink_insn_chain (NEXT_INSN (BB_END (bb)), end);
next_insn = NEXT_INSN (BB_END (bb));
}
@ -3620,7 +3620,7 @@ relink_block_chain (bool stay_in_cfglayout_mode)
{
bb->aux = NULL;
if (!stay_in_cfglayout_mode)
SET_BB_HEADER (bb) = SET_BB_FOOTER (bb) = NULL;
SET_BB_HEADER (bb) = BB_FOOTER (bb) = NULL;
}
/* Maybe reset the original copy tables, they are not valid anymore
@ -3988,8 +3988,8 @@ fixup_fallthru_exit_predecessor (void)
bb = split_block (bb, NULL)->dest;
bb->aux = c->aux;
c->aux = bb;
SET_BB_FOOTER (bb) = BB_FOOTER (c);
SET_BB_FOOTER (c) = NULL;
BB_FOOTER (bb) = BB_FOOTER (c);
BB_FOOTER (c) = NULL;
}
while (c->aux != bb)
@ -4203,7 +4203,7 @@ cfg_layout_duplicate_bb (basic_block bb)
insn = NEXT_INSN (insn);
insn = duplicate_insn_chain (BB_FOOTER (bb), insn);
if (insn)
SET_BB_FOOTER (new_bb) = unlink_insn_chain (insn, get_last_insn ());
BB_FOOTER (new_bb) = unlink_insn_chain (insn, get_last_insn ());
}
return new_bb;
@ -4311,8 +4311,8 @@ cfg_layout_split_block (basic_block bb, void *insnp)
rtx insn = (rtx) insnp;
basic_block new_bb = rtl_split_block (bb, insn);
SET_BB_FOOTER (new_bb) = BB_FOOTER (bb);
SET_BB_FOOTER (bb) = NULL;
BB_FOOTER (new_bb) = BB_FOOTER (bb);
BB_FOOTER (bb) = NULL;
return new_bb;
}
@ -4443,7 +4443,7 @@ cfg_layout_delete_block (basic_block bb)
if (PREV_INSN (insn))
SET_NEXT_INSN (PREV_INSN (insn)) = NEXT_INSN (insn);
else
SET_BB_FOOTER (bb) = NEXT_INSN (insn);
BB_FOOTER (bb) = NEXT_INSN (insn);
if (NEXT_INSN (insn))
SET_PREV_INSN (NEXT_INSN (insn)) = PREV_INSN (insn);
}
@ -4578,7 +4578,7 @@ cfg_layout_merge_blocks (basic_block a, basic_block b)
if (BB_FOOTER (b))
{
if (!BB_FOOTER (a))
SET_BB_FOOTER (a) = SET_BB_FOOTER (b);
BB_FOOTER (a) = BB_FOOTER (b);
else
{
rtx_insn *last = BB_FOOTER (a);
@ -4588,7 +4588,7 @@ cfg_layout_merge_blocks (basic_block a, basic_block b)
SET_NEXT_INSN (last) = BB_FOOTER (b);
SET_PREV_INSN (BB_FOOTER (b)) = last;
}
SET_BB_FOOTER (b) = NULL;
BB_FOOTER (b) = NULL;
}
/* Move things from b->header before a->footer.
@ -4597,7 +4597,7 @@ cfg_layout_merge_blocks (basic_block a, basic_block b)
if (BB_HEADER (b))
{
if (! BB_FOOTER (a))
SET_BB_FOOTER (a) = BB_HEADER (b);
BB_FOOTER (a) = BB_HEADER (b);
else
{
rtx_insn *last = BB_HEADER (b);
@ -4606,7 +4606,7 @@ cfg_layout_merge_blocks (basic_block a, basic_block b)
last = NEXT_INSN (last);
SET_NEXT_INSN (last) = BB_FOOTER (a);
SET_PREV_INSN (BB_FOOTER (a)) = last;
SET_BB_FOOTER (a) = BB_HEADER (b);
BB_FOOTER (a) = BB_HEADER (b);
}
SET_BB_HEADER (b) = NULL;
}
@ -5150,19 +5150,4 @@ rtx& SET_BB_HEADER (basic_block bb)
return bb->il.x.rtl->header_;
}
/* BB_FOOTER as an rvalue. */
rtx_insn *BB_FOOTER (const_basic_block bb)
{
rtx insn = bb->il.x.rtl->footer_;
return safe_as_a <rtx_insn *> (insn);
}
/* BB_FOOTER as an lvalue. */
rtx& SET_BB_FOOTER (basic_block bb)
{
return bb->il.x.rtl->footer_;
}
#include "gt-cfgrtl.h"

2
gcc/combine.c
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@ -2425,7 +2425,7 @@ update_cfg_for_uncondjump (rtx_insn *insn)
if (PREV_INSN (insn))
SET_NEXT_INSN (PREV_INSN (insn)) = NEXT_INSN (insn);
else
SET_BB_FOOTER (bb) = NEXT_INSN (insn);
BB_FOOTER (bb) = NEXT_INSN (insn);
if (NEXT_INSN (insn))
SET_PREV_INSN (NEXT_INSN (insn)) = PREV_INSN (insn);
}

2
rtx-classes-status.txt
View File

@ -15,7 +15,7 @@ Phase 6: use extra rtx_def subclasses: TODO
TODO: "Scaffolding" to be removed
=================================
* DF_REF_INSN
* SET_BB_HEAD, SET_BB_END, SET_BB_HEADER, SET_BB_FOOTER
* SET_BB_HEAD, SET_BB_END, SET_BB_HEADER
* SET_BB_NOTE_LIST
* SET_BND_TO
* SET_DEP_PRO, SET_DEP_CON