we can repair later on.
3. We can do back-substitution or smarter value numbering to catch
commutative expressions split up over multiple statements.
+ 4. ANTIC_SAFE_LOADS could be a lot smarter than it is now.
+ Right now, it is simply calculating loads that occur before
+ any store in a block, instead of loads that occur before
+ stores that affect them. This is relatively more expensive, and
+ it's not clear how much more it will buy us.
*/
/* For ease of terminology, "expression node" in the below refers to
bitmap rvuse_out;
bitmap rvuse_gen;
bitmap rvuse_kill;
+
+ /* For actually occurring loads, as long as they occur before all the
+ other stores in the block, we know they are antic at the top of
+ the block, regardless of RVUSE_KILL. */
+ value_set_t antic_safe_loads;
} *bb_value_sets_t;
#define EXP_GEN(BB) ((bb_value_sets_t) ((BB)->aux))->exp_gen
#define RVUSE_KILL(BB) ((bb_value_sets_t) ((BB)->aux))->rvuse_kill
#define RVUSE_OUT(BB) ((bb_value_sets_t) ((BB)->aux))->rvuse_out
#define NEW_SETS(BB) ((bb_value_sets_t) ((BB)->aux))->new_sets
+#define ANTIC_SAFE_LOADS(BB) ((bb_value_sets_t) ((BB)->aux))->antic_safe_loads
/* This structure is used to keep track of statistics on what
optimization PRE was able to perform. */
static value_set_t set_new (bool);
static bool is_undefined_value (tree);
static tree create_expression_by_pieces (basic_block, tree, tree);
+static tree find_or_generate_expression (basic_block, tree, tree);
/* We can add and remove elements and entries to and from sets
if (is_gimple_min_invariant (val))
return true;
- if (set->length == 0)
+ if (!set || set->length == 0)
return false;
return value_exists_in_set_bitmap (set, val);
tree newval;
if (oldval)
{
+ /* This may seem like a weird place for this
+ check, but it's actually the easiest place to
+ do it. We can't do it lower on in the
+ recursion because it's valid for pieces of a
+ component ref to be of AGGREGATE_TYPE, as long
+ as the outermost one is not.
+ To avoid *that* case, we have a check for
+ AGGREGATE_TYPE_P in insert_aux. However, that
+ check will *not* catch this case because here
+ it occurs in the argument list. */
+ if (AGGREGATE_TYPE_P (TREE_TYPE (oldval)))
+ return NULL;
newval = phi_translate (find_leader (set, oldval),
set, pred, phiblock);
if (newval == NULL)
case tcc_reference:
{
- tree oldop1 = TREE_OPERAND (expr, 0);
- tree newop1;
+ tree oldop0 = TREE_OPERAND (expr, 0);
+ tree oldop1 = NULL;
+ tree newop0;
+ tree newop1 = NULL;
+ tree oldop2 = NULL;
+ tree newop2 = NULL;
+ tree oldop3 = NULL;
+ tree newop3 = NULL;
tree newexpr;
VEC (tree, gc) * oldvuses = NULL;
VEC (tree, gc) * newvuses = NULL;
- if (TREE_CODE (expr) != INDIRECT_REF)
+ if (TREE_CODE (expr) != INDIRECT_REF
+ && TREE_CODE (expr) != COMPONENT_REF
+ && TREE_CODE (expr) != ARRAY_REF)
return NULL;
- newop1 = phi_translate (find_leader (set, oldop1),
+ newop0 = phi_translate (find_leader (set, oldop0),
set, pred, phiblock);
- if (newop1 == NULL)
+ if (newop0 == NULL)
return NULL;
+
+ if (TREE_CODE (expr) == ARRAY_REF)
+ {
+ oldop1 = TREE_OPERAND (expr, 1);
+ newop1 = phi_translate (find_leader (set, oldop1),
+ set, pred, phiblock);
+
+ if (newop1 == NULL)
+ return NULL;
+ oldop2 = TREE_OPERAND (expr, 2);
+ if (oldop2)
+ {
+ newop2 = phi_translate (find_leader (set, oldop2),
+ set, pred, phiblock);
+
+ if (newop2 == NULL)
+ return NULL;
+ }
+ oldop3 = TREE_OPERAND (expr, 3);
+ if (oldop3)
+ {
+ newop3 = phi_translate (find_leader (set, oldop3),
+ set, pred, phiblock);
+
+ if (newop3 == NULL)
+ return NULL;
+ }
+ }
oldvuses = VALUE_HANDLE_VUSES (get_value_handle (expr));
if (oldvuses)
newvuses = translate_vuses_through_block (oldvuses, pred);
-
- if (newop1 != oldop1 || newvuses != oldvuses)
+
+ if (newop0 != oldop0 || newvuses != oldvuses
+ || newop1 != oldop1
+ || newop2 != oldop2
+ || newop3 != oldop3)
{
tree t;
newexpr = pool_alloc (reference_node_pool);
memcpy (newexpr, expr, tree_size (expr));
- TREE_OPERAND (newexpr, 0) = get_value_handle (newop1);
+ TREE_OPERAND (newexpr, 0) = get_value_handle (newop0);
+ if (TREE_CODE (expr) == ARRAY_REF)
+ {
+ TREE_OPERAND (newexpr, 1) = get_value_handle (newop1);
+ if (newop2)
+ TREE_OPERAND (newexpr, 2) = get_value_handle (newop2);
+ if (newop3)
+ TREE_OPERAND (newexpr, 3) = get_value_handle (newop3);
+ }
t = fully_constant_expression (newexpr);
for (i = 0; VEC_iterate (tree, vuses, i, vuse); i++)
{
- /* Any places where this is too conservative, are places
+ /* Any places where this is too conservative, are places
where we created a new version and shouldn't have. */
if (!bitmap_bit_p (RVUSE_IN (block), SSA_NAME_VERSION (vuse))
- || bitmap_bit_p (RVUSE_KILL (block), SSA_NAME_VERSION
- (vuse)))
+ || bitmap_bit_p (RVUSE_KILL (block), SSA_NAME_VERSION (vuse)))
return true;
}
return false;
case tcc_reference:
{
- if (TREE_CODE (expr) == INDIRECT_REF)
+ if (TREE_CODE (expr) == INDIRECT_REF
+ || TREE_CODE (expr) == COMPONENT_REF
+ || TREE_CODE (expr) == ARRAY_REF)
{
tree op0 = TREE_OPERAND (expr, 0);
- if (is_gimple_min_invariant (op0)
- || TREE_CODE (op0) == VALUE_HANDLE)
+ gcc_assert (is_gimple_min_invariant (op0)
+ || TREE_CODE (op0) == VALUE_HANDLE);
+ if (!set_contains_value (set, op0))
+ return false;
+ if (TREE_CODE (expr) == ARRAY_REF)
{
- bool retval = set_contains_value (set, op0);
- if (retval)
- return !vuses_dies_in_block_x (VALUE_HANDLE_VUSES (vh),
- block);
- return false;
- }
+ tree op1 = TREE_OPERAND (expr, 1);
+ tree op2 = TREE_OPERAND (expr, 2);
+ tree op3 = TREE_OPERAND (expr, 3);
+ gcc_assert (is_gimple_min_invariant (op1)
+ || TREE_CODE (op1) == VALUE_HANDLE);
+ if (!set_contains_value (set, op1))
+ return false;
+ gcc_assert (!op2 || is_gimple_min_invariant (op2)
+ || TREE_CODE (op2) == VALUE_HANDLE);
+ if (op2
+ && !set_contains_value (set, op2))
+ return false;
+ gcc_assert (!op3 || is_gimple_min_invariant (op3)
+ || TREE_CODE (op3) == VALUE_HANDLE);
+ if (op3
+ && !set_contains_value (set, op3))
+ return false;
+ }
+ return set_contains_value (ANTIC_SAFE_LOADS (block),
+ vh)
+ || !vuses_dies_in_block_x (VALUE_HANDLE_VUSES (vh),
+ block);
}
}
return false;
{
if (ANTIC_OUT)
print_value_set (dump_file, ANTIC_OUT, "ANTIC_OUT", block->index);
+
+ if (ANTIC_SAFE_LOADS (block))
+ print_value_set (dump_file, ANTIC_SAFE_LOADS (block),
+ "ANTIC_SAFE_LOADS", block->index);
print_value_set (dump_file, ANTIC_IN (block), "ANTIC_IN", block->index);
+
if (S)
print_value_set (dump_file, S, "S", block->index);
}
VEC_free (tree, heap, phis);
}
-/* Compute reaching vuses. This is a small bit of iterative dataflow
- to determine what virtual uses reach what blocks. Because we can't
- generate overlapping virtual uses, and virtual uses *do* actually
- die, this ends up being faster in most cases than continually
- walking the virtual use/def chains to determine whether we are
- inside a block where a given virtual is still available to be
- used. */
+/* Compute reaching vuses and antic safe loads. RVUSE computation is
+ is a small bit of iterative dataflow to determine what virtual uses
+ reach what blocks. Because we can't generate overlapping virtual
+ uses, and virtual uses *do* actually die, this ends up being faster
+ in most cases than continually walking the virtual use/def chains
+ to determine whether we are inside a block where a given virtual is
+ still available to be used.
+
+ ANTIC_SAFE_LOADS are those loads that actually occur before any kill to
+ their vuses in the block,and thus, are safe at the top of the
+ block.
+
+ An example:
+
+ <block begin>
+ b = *a
+ *a = 9
+ <block end>
+
+ b = *a is an antic safe load because it still safe to consider it
+ ANTIC at the top of the block.
+
+ We currently compute a conservative approximation to
+ ANTIC_SAFE_LOADS. We compute those loads that occur before *any*
+ stores in the block. This is not because it is difficult to
+ compute the precise answer, but because it is expensive. More
+ testing is necessary to determine whether it is worth computing the
+ precise answer. */
static void
-compute_rvuse (void)
+compute_rvuse_and_antic_safe (void)
{
size_t i;
basic_block bb;
int *postorder;
bool changed = true;
+ unsigned int *first_store_uid;
+ first_store_uid = xcalloc (n_basic_blocks, sizeof (unsigned int));
+
compute_vuse_representatives ();
FOR_ALL_BB (bb)
RVUSE_GEN (bb) = BITMAP_ALLOC (&grand_bitmap_obstack);
RVUSE_KILL (bb) = BITMAP_ALLOC (&grand_bitmap_obstack);
RVUSE_OUT (bb) = BITMAP_ALLOC (&grand_bitmap_obstack);
+ ANTIC_SAFE_LOADS (bb) = NULL;
}
-
/* Mark live on entry */
for (i = 0; i < num_ssa_names; i++)
{
def_operand_p defp;
use_operand_p usep;
-
for (bsi = bsi_start (bb); !bsi_end_p (bsi); bsi_next (&bsi))
{
tree stmt = bsi_stmt (bsi);
+
+ if (first_store_uid[bb->index] == 0
+ && !ZERO_SSA_OPERANDS (stmt, SSA_OP_VMAYUSE | SSA_OP_VMAYDEF
+ | SSA_OP_VMUSTDEF | SSA_OP_VMUSTKILL))
+ {
+ first_store_uid[bb->index] = stmt_ann (stmt)->uid;
+ }
+
+
FOR_EACH_SSA_USE_OPERAND (usep, stmt, iter, SSA_OP_VIRTUAL_KILLS
| SSA_OP_VMAYUSE)
{
RVUSE_IN[BB] = Union of RVUSE_OUT of predecessors.
RVUSE_OUT[BB] = RVUSE_GEN[BB] U (RVUSE_IN[BB] - RVUSE_KILL[BB])
*/
- postorder = xmalloc (sizeof (int) * (n_basic_blocks - NUM_FIXED_BLOCKS));
+ postorder = XNEWVEC (int, n_basic_blocks - NUM_FIXED_BLOCKS);
pre_and_rev_post_order_compute (NULL, postorder, false);
changed = true;
dump_bitmap_of_names (dump_file, RVUSE_OUT (bb));
}
}
+
+ FOR_EACH_BB (bb)
+ {
+ value_set_node_t node;
+ if (bitmap_empty_p (RVUSE_KILL (bb)))
+ continue;
+
+ for (node = EXP_GEN (bb)->head; node; node = node->next)
+ {
+ if (REFERENCE_CLASS_P (node->expr))
+ {
+ tree vh = get_value_handle (node->expr);
+ tree maybe = bitmap_find_leader (AVAIL_OUT (bb), vh);
+
+ if (maybe)
+ {
+ tree def = SSA_NAME_DEF_STMT (maybe);
+
+ if (bb_for_stmt (def) != bb)
+ continue;
+
+ if (TREE_CODE (def) == PHI_NODE
+ || stmt_ann (def)->uid < first_store_uid[bb->index])
+ {
+ if (ANTIC_SAFE_LOADS (bb) == NULL)
+ ANTIC_SAFE_LOADS (bb) = set_new (true);
+ value_insert_into_set (ANTIC_SAFE_LOADS (bb),
+ node->expr);
+ }
+ }
+ }
+ }
+ }
+ free (first_store_uid);
}
/* Return true if we can value number the call in STMT. This is true
|| BINARY_CLASS_P (op)
|| COMPARISON_CLASS_P (op)
|| TREE_CODE (op) == INDIRECT_REF
- || TREE_CODE (op) == CALL_EXPR;
+ || TREE_CODE (op) == COMPONENT_REF
+ || TREE_CODE (op) == CALL_EXPR
+ || TREE_CODE (op) == ARRAY_REF;
}
to see which expressions need to be put into GC'able memory */
static VEC(tree, heap) *need_creation;
+/* For COMPONENT_REF's and ARRAY_REF's, we can't have any intermediates for the
+ COMPONENT_REF or INDIRECT_REF or ARRAY_REF portion, because we'd end up with
+ trying to rename aggregates into ssa form directly, which is a no
+ no.
+
+ Thus, this routine doesn't create temporaries, it just builds a
+ single access expression for the array, calling
+ find_or_generate_expression to build the innermost pieces.
+
+ This function is a subroutine of create_expression_by_pieces, and
+ should not be called on it's own unless you really know what you
+ are doing.
+*/
+static tree
+create_component_ref_by_pieces (basic_block block, tree expr, tree stmts)
+{
+ tree genop = expr;
+ tree folded;
+
+ if (TREE_CODE (genop) == VALUE_HANDLE)
+ {
+ tree found = bitmap_find_leader (AVAIL_OUT (block), expr);
+ if (found)
+ return found;
+ }
+
+ if (TREE_CODE (genop) == VALUE_HANDLE)
+ genop = VALUE_HANDLE_EXPR_SET (expr)->head->expr;
+
+ switch TREE_CODE (genop)
+ {
+ case ARRAY_REF:
+ {
+ tree op0;
+ tree op1, op2, op3;
+ op0 = create_component_ref_by_pieces (block,
+ TREE_OPERAND (genop, 0),
+ stmts);
+ op1 = TREE_OPERAND (genop, 1);
+ if (TREE_CODE (op1) == VALUE_HANDLE)
+ op1 = find_or_generate_expression (block, op1, stmts);
+ op2 = TREE_OPERAND (genop, 2);
+ if (op2 && TREE_CODE (op2) == VALUE_HANDLE)
+ op2 = find_or_generate_expression (block, op2, stmts);
+ op3 = TREE_OPERAND (genop, 3);
+ if (op3 && TREE_CODE (op3) == VALUE_HANDLE)
+ op3 = find_or_generate_expression (block, op3, stmts);
+ folded = build4 (ARRAY_REF, TREE_TYPE (genop), op0, op1,
+ op2, op3);
+ return folded;
+ }
+ case COMPONENT_REF:
+ {
+ tree op0;
+ tree op1;
+ op0 = create_component_ref_by_pieces (block,
+ TREE_OPERAND (genop, 0),
+ stmts);
+ op1 = VALUE_HANDLE_EXPR_SET (TREE_OPERAND (genop, 1))->head->expr;
+ folded = fold_build3 (COMPONENT_REF, TREE_TYPE (genop), op0, op1,
+ NULL_TREE);
+ return folded;
+ }
+ break;
+ case INDIRECT_REF:
+ {
+ tree op1 = TREE_OPERAND (genop, 0);
+ tree genop1 = find_or_generate_expression (block, op1, stmts);
+
+ folded = fold_build1 (TREE_CODE (genop), TREE_TYPE (genop),
+ genop1);
+ return folded;
+ }
+ break;
+ case VAR_DECL:
+ case PARM_DECL:
+ case RESULT_DECL:
+ case SSA_NAME:
+ case STRING_CST:
+ return genop;
+ default:
+ gcc_unreachable ();
+ }
+
+ return NULL_TREE;
+}
/* Find a leader for an expression, or generate one using
create_expression_by_pieces if it's ANTIC but
}
break;
case tcc_reference:
- gcc_assert (TREE_CODE (expr) == INDIRECT_REF);
{
- tree op1 = TREE_OPERAND (expr, 0);
- tree genop1 = find_or_generate_expression (block, op1, stmts);
-
- folded = fold_build1 (TREE_CODE (expr), TREE_TYPE (expr),
- genop1);
+ if (TREE_CODE (expr) == COMPONENT_REF
+ || TREE_CODE (expr) == ARRAY_REF)
+ {
+ folded = create_component_ref_by_pieces (block, expr, stmts);
+ }
+ else
+ {
+ tree op1 = TREE_OPERAND (expr, 0);
+ tree genop1 = find_or_generate_expression (block, op1, stmts);
+
+ folded = fold_build1 (TREE_CODE (expr), TREE_TYPE (expr),
+ genop1);
+ }
break;
}
}
temp = pretemp;
- add_referenced_tmp_var (temp);
+ add_referenced_var (temp);
if (TREE_CODE (TREE_TYPE (expr)) == COMPLEX_TYPE)
DECL_COMPLEX_GIMPLE_REG_P (temp) = 1;
}
temp = prephitemp;
- add_referenced_tmp_var (temp);
+ add_referenced_var (temp);
if (TREE_CODE (type) == COMPLEX_TYPE)
DECL_COMPLEX_GIMPLE_REG_P (temp) = 1;
node;
node = node->next)
{
- if (can_PRE_operation (node->expr))
+ if (can_PRE_operation (node->expr)
+ && !AGGREGATE_TYPE_P (TREE_TYPE (node->expr)))
{
tree *avail;
tree val;
if (op == NULL_TREE)
continue;
- /* If OP is a constant that has overflowed, do not value number
- this expression. */
- if (CONSTANT_CLASS_P (op)
- && TREE_OVERFLOW (op))
- {
- pool_free (pool, vexpr);
- return NULL;
- }
-
/* Recursively value-numberize reference ops and tree lists. */
if (REFERENCE_CLASS_P (op))
{
FOR_EACH_EDGE (e, ei, block->preds)
{
+ /* We cannot handle abnormal incoming edges correctly. */
+ if (e->flags & EDGE_ABNORMAL)
+ return;
+
if (first)
{
bitmap_set_copy (tempset, AVAIL_OUT (e->src));
tree val = get_value_handle (name);
tree temp;
+ if (SSA_NAME_OCCURS_IN_ABNORMAL_PHI (name))
+ continue;
+
if (!mergephitemp
|| TREE_TYPE (name) != TREE_TYPE (mergephitemp))
{
fprintf (dump_file, " to merge available but not dominating values ");
}
- add_referenced_tmp_var (temp);
+ add_referenced_var (temp);
temp = create_phi_node (temp, block);
NECESSARY (temp) = 0;
VEC_safe_push (tree, heap, inserted_exprs, temp);
tree newstmt;
/* Mark the temp variable as referenced */
- add_referenced_tmp_var (SSA_NAME_VAR (TREE_OPERAND (stmt, 0)));
+ add_referenced_var (SSA_NAME_VAR (TREE_OPERAND (stmt, 0)));
- /* Put the new statement in GC memory, fix up the annotation
- and SSA_NAME_DEF_STMT on it, and then put it in place of
- the old statement in the IR stream. */
- newstmt = unshare_expr (stmt);
+ /* Put the new statement in GC memory, fix up the
+ SSA_NAME_DEF_STMT on it, and then put it in place of
+ the old statement before the store in the IR stream
+ as a plain ssa name copy. */
+ bsi = bsi_for_stmt (stmt);
+ bsi_prev (&bsi);
+ newstmt = build2 (MODIFY_EXPR, void_type_node,
+ TREE_OPERAND (stmt, 0),
+ TREE_OPERAND (bsi_stmt (bsi), 1));
SSA_NAME_DEF_STMT (TREE_OPERAND (newstmt, 0)) = newstmt;
-
- newstmt->common.ann = stmt->common.ann;
-
+ bsi_insert_before (&bsi, newstmt, BSI_SAME_STMT);
bsi = bsi_for_stmt (stmt);
- bsi_replace (&bsi, newstmt, true);
+ bsi_remove (&bsi, true);
}
else
release_defs (stmt);
}
}
+/* Tree-combine a value number expression *EXPR_P that does a type
+ conversion with the value number expression of its operand.
+ Returns true, if *EXPR_P simplifies to a value number or
+ gimple min-invariant expression different from EXPR_P and
+ sets *EXPR_P to the simplified expression value number.
+ Otherwise returns false and does not change *EXPR_P. */
+
+static bool
+try_combine_conversion (tree *expr_p)
+{
+ tree expr = *expr_p;
+ tree t;
+
+ if (!((TREE_CODE (expr) == NOP_EXPR
+ || TREE_CODE (expr) == CONVERT_EXPR)
+ && TREE_CODE (TREE_OPERAND (expr, 0)) == VALUE_HANDLE
+ && !VALUE_HANDLE_VUSES (TREE_OPERAND (expr, 0))))
+ return false;
+
+ t = fold_unary (TREE_CODE (expr), TREE_TYPE (expr),
+ VALUE_HANDLE_EXPR_SET (TREE_OPERAND (expr, 0))->head->expr);
+
+ /* Disallow value expressions we have no value number for already, as
+ we would miss a leader for it here. */
+ if (t
+ && !(TREE_CODE (t) == VALUE_HANDLE
+ || is_gimple_min_invariant (t)))
+ t = vn_lookup (t, NULL);
+
+ if (t && t != expr)
+ {
+ *expr_p = t;
+ return true;
+ }
+ return false;
+}
/* Compute the AVAIL set for all basic blocks.
basic_block *worklist;
size_t sp = 0;
tree param;
-
/* For arguments with default definitions, we pretend they are
defined in the entry block. */
for (param = DECL_ARGUMENTS (current_function_decl);
block_stmt_iterator bsi;
tree stmt, phi;
basic_block dom;
+ unsigned int stmt_uid = 1;
/* Pick a block from the worklist. */
block = worklist[--sp];
stmt = bsi_stmt (bsi);
ann = stmt_ann (stmt);
+
+ ann->uid = stmt_uid++;
/* For regular value numbering, we are only interested in
assignments of the form X_i = EXPR, where EXPR represents
tree newt = create_value_expr_from (rhs, block, stmt);
if (newt)
{
- add_to_sets (lhs, newt, stmt, TMP_GEN (block),
- AVAIL_OUT (block));
- value_insert_into_set (EXP_GEN (block), newt);
+ /* If we can combine a conversion expression
+ with the expression for its operand just
+ record the value number for it. */
+ if (try_combine_conversion (&newt))
+ vn_add (lhs, newt);
+ else
+ {
+ tree val = vn_lookup_or_add (newt, stmt);
+ vn_add (lhs, val);
+ value_insert_into_set (EXP_GEN (block), newt);
+ }
+ bitmap_insert_into_set (TMP_GEN (block), lhs);
+ bitmap_value_insert_into_set (AVAIL_OUT (block), lhs);
continue;
}
}
vn_init ();
if (!do_fre)
- current_loops = loop_optimizer_init (dump_file);
+ current_loops = loop_optimizer_init (LOOPS_NORMAL);
connect_infinite_loops_to_exit ();
memset (&pre_stats, 0, sizeof (pre_stats));
}
if (!do_fre && current_loops)
{
- loop_optimizer_finalize (current_loops, dump_file);
+ loop_optimizer_finalize (current_loops);
current_loops = NULL;
}
}
computing ANTIC, either, even though it's plenty fast. */
if (!do_fre && n_basic_blocks < 4000)
{
- vuse_names = xcalloc (num_ssa_names, sizeof (bitmap));
- compute_rvuse ();
+ vuse_names = XCNEWVEC (bitmap, num_ssa_names);
+ compute_rvuse_and_antic_safe ();
compute_antic ();
insert ();
free (vuse_names);
/* Gate and execute functions for PRE. */
-static void
+static unsigned int
do_pre (void)
{
execute_pre (false);
+ return 0;
}
static bool
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
- TODO_update_ssa | TODO_dump_func | TODO_ggc_collect
+ TODO_update_ssa_only_virtuals | TODO_dump_func | TODO_ggc_collect
| TODO_verify_ssa, /* todo_flags_finish */
0 /* letter */
};
/* Gate and execute functions for FRE. */
-static void
+static unsigned int
execute_fre (void)
{
execute_pre (true);
+ return 0;
}
static bool
OSDN Git Service
