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The TARGET_CAN_FOLLOW_JUMP hook takes insns 

gcc/ChangeLog:
	* config/arc/arc.c (arc_can_follow_jump): Strengthen both params
	from const_rtx to const rtx_insn *.  Update union members from rtx
	to rtx_insn *.
	* doc/tm.texi (TARGET_CAN_FOLLOW_JUMP): Autogenerated change.
	* hooks.c (hook_bool_const_rtx_const_rtx_true): Rename to...
	(hook_bool_const_rtx_insn_const_rtx_insn_true): ...this, and
	strengthen both params from const_rtx to const rtx_insn *.
	* hooks.h (hook_bool_const_rtx_const_rtx_true): Likewise.
	(hook_bool_const_rtx_insn_const_rtx_insn_true): Likewise.
	* reorg.c (follow_jumps): Strengthen param "jump" from rtx to
	rtx_insn *.
	* target.def (can_follow_jump): Strengthen both params from
	const_rtx to const rtx_insn *, and update default implementation
	from hook_bool_const_rtx_const_rtx_true to
	hook_bool_const_rtx_insn_const_rtx_insn_true.

From-SVN: r215269
This commit is contained in:
David Malcolm 2014-09-15 15:49:09 +00:00 committed by David Malcolm
parent 99de861295
commit c1ce59ab7f
7 changed files with 31 additions and 11 deletions
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18
gcc/ChangeLog
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@ -1,3 +1,21 @@
2014-09-15 David Malcolm <dmalcolm@redhat.com>
* config/arc/arc.c (arc_can_follow_jump): Strengthen both params
from const_rtx to const rtx_insn *. Update union members from rtx
to rtx_insn *.
* doc/tm.texi (TARGET_CAN_FOLLOW_JUMP): Autogenerated change.
* hooks.c (hook_bool_const_rtx_const_rtx_true): Rename to...
(hook_bool_const_rtx_insn_const_rtx_insn_true): ...this, and
strengthen both params from const_rtx to const rtx_insn *.
* hooks.h (hook_bool_const_rtx_const_rtx_true): Likewise.
(hook_bool_const_rtx_insn_const_rtx_insn_true): Likewise.
* reorg.c (follow_jumps): Strengthen param "jump" from rtx to
rtx_insn *.
* target.def (can_follow_jump): Strengthen both params from
const_rtx to const rtx_insn *, and update default implementation
from hook_bool_const_rtx_const_rtx_true to
hook_bool_const_rtx_insn_const_rtx_insn_true.
2014-09-15 David Malcolm <dmalcolm@redhat.com>
* sched-deps.c (deps_start_bb): Strengthen param "head" and local

7
gcc/config/arc/arc.c
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@ -420,7 +420,8 @@ arc_vector_mode_supported_p (enum machine_mode mode)
/* TARGET_PRESERVE_RELOAD_P is still awaiting patch re-evaluation / review. */
static bool arc_preserve_reload_p (rtx in) ATTRIBUTE_UNUSED;
static rtx arc_delegitimize_address (rtx);
static bool arc_can_follow_jump (const_rtx follower, const_rtx followee);
static bool arc_can_follow_jump (const rtx_insn *follower,
const rtx_insn *followee);
static rtx frame_insn (rtx);
static void arc_function_arg_advance (cumulative_args_t, enum machine_mode,
@ -9214,10 +9215,10 @@ arc_decl_pretend_args (tree decl)
to redirect two breqs. */
static bool
arc_can_follow_jump (const_rtx follower, const_rtx followee)
arc_can_follow_jump (const rtx_insn *follower, const rtx_insn *followee)
{
/* ??? get_attr_type is declared to take an rtx. */
union { const_rtx c; rtx r; } u;
union { const rtx_insn *c; rtx_insn *r; } u;
u.c = follower;
if (CROSSING_JUMP_P (followee))

2
gcc/doc/tm.texi
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@ -10827,7 +10827,7 @@ filling of delay slots can result in branches being redirected, and this
may in turn cause a branch offset to overflow.
@end defmac
@deftypefn {Target Hook} bool TARGET_CAN_FOLLOW_JUMP (const_rtx @var{follower}, const_rtx @var{followee})
@deftypefn {Target Hook} bool TARGET_CAN_FOLLOW_JUMP (const rtx_insn *@var{follower}, const rtx_insn *@var{followee})
FOLLOWER and FOLLOWEE are JUMP_INSN instructions; return true if FOLLOWER may be modified to follow FOLLOWEE; false, if it can't. For example, on some targets, certain kinds of branches can't be made to follow through a hot/cold partitioning.
@end deftypefn

6
gcc/hooks.c
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@ -116,10 +116,10 @@ hook_bool_mode_rtx_true (enum machine_mode mode ATTRIBUTE_UNUSED,
return true;
}
/* Generic hook that takes (rtx, rtx) and returns true. */
/* Generic hook that takes (const rtx_insn *, const rtx_insn *) and returns true. */
bool
hook_bool_const_rtx_const_rtx_true (const_rtx follower ATTRIBUTE_UNUSED,
const_rtx followee ATTRIBUTE_UNUSED)
hook_bool_const_rtx_insn_const_rtx_insn_true (const rtx_insn *follower ATTRIBUTE_UNUSED,
const rtx_insn *followee ATTRIBUTE_UNUSED)
{
return true;
}

3
gcc/hooks.h
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@ -36,7 +36,8 @@ extern bool hook_bool_mode_const_rtx_false (enum machine_mode, const_rtx);
extern bool hook_bool_mode_const_rtx_true (enum machine_mode, const_rtx);
extern bool hook_bool_mode_rtx_false (enum machine_mode, rtx);
extern bool hook_bool_mode_rtx_true (enum machine_mode, rtx);
extern bool hook_bool_const_rtx_const_rtx_true (const_rtx, const_rtx);
extern bool hook_bool_const_rtx_insn_const_rtx_insn_true (const rtx_insn *,
const rtx_insn *);
extern bool hook_bool_mode_uhwi_false (enum machine_mode,
unsigned HOST_WIDE_INT);
extern bool hook_bool_tree_false (tree);

2
gcc/reorg.c
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@ -2307,7 +2307,7 @@ fill_simple_delay_slots (int non_jumps_p)
set *CROSSING to true, otherwise set it to false. */
static rtx
follow_jumps (rtx label, rtx jump, bool *crossing)
follow_jumps (rtx label, rtx_insn *jump, bool *crossing)
{
rtx_insn *insn;
rtx_insn *next;

4
gcc/target.def
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@ -2278,8 +2278,8 @@ DEFHOOK
false, if it can't.\
For example, on some targets, certain kinds of branches can't be made to\
follow through a hot/cold partitioning.",
bool, (const_rtx follower, const_rtx followee),
hook_bool_const_rtx_const_rtx_true)
bool, (const rtx_insn *follower, const rtx_insn *followee),
hook_bool_const_rtx_insn_const_rtx_insn_true)
/* Return a register class for which branch target register
optimizations should be applied. */