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make forced labels a vec

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gcc/ChangeLog:

2016-08-27  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* cfgbuild.c (make_edges): Adjust.
	* cfgrtl.c (can_delete_label_p): Likewise.
	* dwarf2cfi.c (create_trace_edges): Likewise.
	* except.c (sjlj_emit_dispatch_table): Likewise.
	* function.h (struct expr_status): make x_forced_labels a vector.
	* jump.c (rebuild_jump_labels_1): Adjust.
	* reload1.c (set_initial_label_offsets): Likewise.
	* stmt.c (force_label_rtx): Likewise.
	(expand_label): Likewise.

From-SVN: r239800
This commit is contained in:
Trevor Saunders 2016-08-28 00:03:59 +00:00 committed by Trevor Saunders
parent 9cad8a673f
commit 6f7eba349b
9 changed files with 39 additions and 19 deletions
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12
gcc/ChangeLog
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@ -1,3 +1,15 @@
2016-08-27 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
* cfgbuild.c (make_edges): Adjust.
* cfgrtl.c (can_delete_label_p): Likewise.
* dwarf2cfi.c (create_trace_edges): Likewise.
* except.c (sjlj_emit_dispatch_table): Likewise.
* function.h (struct expr_status): make x_forced_labels a vector.
* jump.c (rebuild_jump_labels_1): Adjust.
* reload1.c (set_initial_label_offsets): Likewise.
* stmt.c (force_label_rtx): Likewise.
(expand_label): Likewise.
2016-08-27 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
* haifa-sched.c (fix_recovery_deps): Make ready_list a vector.

9
gcc/cfgbuild.c
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@ -204,7 +204,8 @@ make_edges (basic_block min, basic_block max, int update_p)
/* Heavy use of computed goto in machine-generated code can lead to
nearly fully-connected CFGs. In that case we spend a significant
amount of time searching the edge lists for duplicates. */
if (forced_labels || cfun->cfg->max_jumptable_ents > 100)
if (!vec_safe_is_empty (forced_labels)
|| cfun->cfg->max_jumptable_ents > 100)
edge_cache = sbitmap_alloc (last_basic_block_for_fn (cfun));
/* By nature of the way these get numbered, ENTRY_BLOCK_PTR->next_bb block
@ -280,8 +281,10 @@ make_edges (basic_block min, basic_block max, int update_p)
everything on the forced_labels list. */
else if (computed_jump_p (insn))
{
for (rtx_insn_list *x = forced_labels; x; x = x->next ())
make_label_edge (edge_cache, bb, x->insn (), EDGE_ABNORMAL);
rtx_insn *insn;
unsigned int i;
FOR_EACH_VEC_SAFE_ELT (forced_labels, i, insn)
make_label_edge (edge_cache, bb, insn, EDGE_ABNORMAL);
}
/* Returns create an exit out. */

3
gcc/cfgrtl.c
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@ -115,7 +115,8 @@ can_delete_label_p (const rtx_code_label *label)
return (!LABEL_PRESERVE_P (label)
/* User declared labels must be preserved. */
&& LABEL_NAME (label) == 0
&& !in_insn_list_p (forced_labels, label));
&& !vec_safe_contains<rtx_insn *> (forced_labels,
const_cast<rtx_code_label *> (label)));
}
/* Delete INSN by patching it out. */

6
gcc/dwarf2cfi.c
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@ -2354,8 +2354,10 @@ create_trace_edges (rtx_insn *insn)
}
else if (computed_jump_p (insn))
{
for (rtx_insn_list *lab = forced_labels; lab; lab = lab->next ())
maybe_record_trace_start (lab->insn (), insn);
rtx_insn *temp;
unsigned int i;
FOR_EACH_VEC_SAFE_ELT (forced_labels, i, temp)
maybe_record_trace_start (temp, insn);
}
else if (returnjump_p (insn))
;

3
gcc/except.c
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@ -1278,8 +1278,7 @@ sjlj_emit_dispatch_table (rtx_code_label *dispatch_label, int num_dispatch)
label on the nonlocal_goto_label list. Since we're modeling these
CFG edges more exactly, we can use the forced_labels list instead. */
LABEL_PRESERVE_P (dispatch_label) = 1;
forced_labels
= gen_rtx_INSN_LIST (VOIDmode, dispatch_label, forced_labels);
vec_safe_push<rtx_insn *> (forced_labels, dispatch_label);
#endif
/* Load up exc_ptr and filter values from the function context. */

2
gcc/function.h
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@ -126,7 +126,7 @@ struct GTY(()) expr_status {
rtx x_apply_args_value;
/* List of labels that must never be deleted. */
rtx_insn_list *x_forced_labels;
vec<rtx_insn *, va_gc> *x_forced_labels;
};
typedef struct call_site_record_d *call_site_record;

12
gcc/jump.c
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@ -68,8 +68,6 @@ static int invert_exp_1 (rtx, rtx);
static void
rebuild_jump_labels_1 (rtx_insn *f, bool count_forced)
{
rtx_insn_list *insn;
timevar_push (TV_REBUILD_JUMP);
init_label_info (f);
mark_all_labels (f);
@ -79,9 +77,13 @@ rebuild_jump_labels_1 (rtx_insn *f, bool count_forced)
count doesn't drop to zero. */
if (count_forced)
for (insn = forced_labels; insn; insn = insn->next ())
if (LABEL_P (insn->insn ()))
LABEL_NUSES (insn->insn ())++;
{
rtx_insn *insn;
unsigned int i;
FOR_EACH_VEC_SAFE_ELT (forced_labels, i, insn)
if (LABEL_P (insn))
LABEL_NUSES (insn)++;
}
timevar_pop (TV_REBUILD_JUMP);
}

7
gcc/reload1.c
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@ -3888,9 +3888,10 @@ set_initial_label_offsets (void)
{
memset (offsets_known_at, 0, num_labels);
for (rtx_insn_list *x = forced_labels; x; x = x->next ())
if (x->insn ())
set_label_offsets (x->insn (), NULL, 1);
unsigned int i;
rtx_insn *insn;
FOR_EACH_VEC_SAFE_ELT (forced_labels, i, insn)
set_label_offsets (insn, NULL, 1);
for (rtx_insn_list *x = nonlocal_goto_handler_labels; x; x = x->next ())
if (x->insn ())

4
gcc/stmt.c
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@ -136,7 +136,7 @@ force_label_rtx (tree label)
gcc_assert (function);
forced_labels = gen_rtx_INSN_LIST (VOIDmode, ref, forced_labels);
vec_safe_push (forced_labels, ref);
return ref;
}
@ -190,7 +190,7 @@ expand_label (tree label)
}
if (FORCED_LABEL (label))
forced_labels = gen_rtx_INSN_LIST (VOIDmode, label_r, forced_labels);
vec_safe_push<rtx_insn *> (forced_labels, label_r);
if (DECL_NONLOCAL (label) || FORCED_LABEL (label))
maybe_set_first_label_num (label_r);