You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#include "config.h"
#include "system.h"
#include "basic-block.h"
#include "cfgloop.h"
#include "output.h"
-#include "errors.h"
#include "expr.h"
#include "function.h"
#include "diagnostic.h"
know their exact value. */
static bitmap nonzero_vars;
+/* Bitmap of blocks that are scheduled to be threaded through. This
+ is used to communicate with thread_through_blocks. */
+static bitmap threaded_blocks;
+
/* Stack of SSA_NAMEs which need their NONZERO_VARS property cleared
when the current block is finalized.
long num_re;
long num_const_prop;
long num_copy_prop;
+ long num_iterations;
};
static struct opt_stats_d opt_stats;
with useful information is very low. */
static htab_t vrp_data;
+typedef struct vrp_element *vrp_element_p;
+
+DEF_VEC_P(vrp_element_p);
+DEF_VEC_ALLOC_P(vrp_element_p,heap);
+
/* An entry in the VRP_DATA hash table. We record the variable and a
varray of VRP_ELEMENT records associated with that variable. */
struct vrp_hash_elt
{
tree var;
- varray_type records;
+ VEC(vrp_element_p,heap) *records;
};
/* Array of variables which have their values constrained by operations
static void record_const_or_copy (tree, tree);
static void record_equality (tree, tree);
static tree update_rhs_and_lookup_avail_expr (tree, tree, bool);
-static tree simplify_rhs_and_lookup_avail_expr (struct dom_walk_data *,
- tree, int);
+static tree simplify_rhs_and_lookup_avail_expr (tree, int);
static tree simplify_cond_and_lookup_avail_expr (tree, stmt_ann_t, int);
static tree simplify_switch_and_lookup_avail_expr (tree, int);
static tree find_equivalent_equality_comparison (tree);
static bool extract_range_from_cond (tree, tree *, tree *, int *);
static void record_equivalences_from_phis (basic_block);
static void record_equivalences_from_incoming_edge (basic_block);
-static bool eliminate_redundant_computations (struct dom_walk_data *,
- tree, stmt_ann_t);
+static bool eliminate_redundant_computations (tree, stmt_ann_t);
static void record_equivalences_from_stmt (tree, int, stmt_ann_t);
static void thread_across_edge (struct dom_walk_data *, edge);
static void dom_opt_finalize_block (struct dom_walk_data *, basic_block);
}
}
+/* Free an instance of vrp_hash_elt. */
+
+static void
+vrp_free (void *data)
+{
+ struct vrp_hash_elt *elt = data;
+ struct VEC(vrp_element_p,heap) **vrp_elt = &elt->records;
+
+ VEC_free (vrp_element_p, heap, *vrp_elt);
+ free (elt);
+}
+
/* Jump threading, redundancy elimination and const/copy propagation.
This pass may expose new symbols that need to be renamed into SSA. For
/* Create our hash tables. */
avail_exprs = htab_create (1024, real_avail_expr_hash, avail_expr_eq, free);
- vrp_data = htab_create (ceil_log2 (num_ssa_names), vrp_hash, vrp_eq, free);
+ vrp_data = htab_create (ceil_log2 (num_ssa_names), vrp_hash, vrp_eq,
+ vrp_free);
avail_exprs_stack = VEC_alloc (tree, heap, 20);
const_and_copies_stack = VEC_alloc (tree, heap, 20);
nonzero_vars_stack = VEC_alloc (tree, heap, 20);
vrp_variables_stack = VEC_alloc (tree, heap, 20);
stmts_to_rescan = VEC_alloc (tree, heap, 20);
nonzero_vars = BITMAP_ALLOC (NULL);
+ threaded_blocks = BITMAP_ALLOC (NULL);
need_eh_cleanup = BITMAP_ALLOC (NULL);
/* Setup callbacks for the generic dominator tree walker. */
/* Recursively walk the dominator tree optimizing statements. */
walk_dominator_tree (&walk_data, ENTRY_BLOCK_PTR);
- /* If we exposed any new variables, go ahead and put them into
- SSA form now, before we handle jump threading. This simplifies
- interactions between rewriting of _DECL nodes into SSA form
- and rewriting SSA_NAME nodes into SSA form after block
- duplication and CFG manipulation. */
- update_ssa (TODO_update_ssa);
-
- free_all_edge_infos ();
-
{
block_stmt_iterator bsi;
basic_block bb;
}
}
+ /* If we exposed any new variables, go ahead and put them into
+ SSA form now, before we handle jump threading. This simplifies
+ interactions between rewriting of _DECL nodes into SSA form
+ and rewriting SSA_NAME nodes into SSA form after block
+ duplication and CFG manipulation. */
+ update_ssa (TODO_update_ssa);
+
+ free_all_edge_infos ();
+
/* Thread jumps, creating duplicate blocks as needed. */
- cfg_altered |= thread_through_all_blocks ();
+ cfg_altered |= thread_through_all_blocks (threaded_blocks);
/* Removal of statements may make some EH edges dead. Purge
such edges from the CFG as needed. */
if (cfg_altered)
free_dominance_info (CDI_DOMINATORS);
- cfg_altered = cleanup_tree_cfg ();
+ /* Only iterate if we threaded jumps AND the CFG cleanup did
+ something interesting. Other cases generate far fewer
+ optimization opportunities and thus are not worth another
+ full DOM iteration. */
+ cfg_altered &= cleanup_tree_cfg ();
if (rediscover_loops_after_threading)
{
/* Reinitialize the various tables. */
bitmap_clear (nonzero_vars);
+ bitmap_clear (threaded_blocks);
htab_empty (avail_exprs);
htab_empty (vrp_data);
if (value && !is_gimple_min_invariant (value))
SSA_NAME_VALUE (name) = NULL;
}
+
+ opt_stats.num_iterations++;
}
while (optimize > 1 && cfg_altered);
/* Free nonzero_vars. */
BITMAP_FREE (nonzero_vars);
+ BITMAP_FREE (threaded_blocks);
BITMAP_FREE (need_eh_cleanup);
VEC_free (tree, heap, avail_exprs_stack);
statements. This does not prevent threading through E->dest. */
for (bsi = bsi_start (e->dest); ! bsi_end_p (bsi); bsi_next (&bsi))
{
- tree cached_lhs;
+ tree cached_lhs = NULL;
stmt = bsi_stmt (bsi);
else
{
/* Copy the operands. */
- tree *copy;
+ tree *copy, pre_fold_expr;
ssa_op_iter iter;
use_operand_p use_p;
unsigned int num, i = 0;
/* Try to fold/lookup the new expression. Inserting the
expression into the hash table is unlikely to help
- simplify anything later, so just query the hashtable. */
- cached_lhs = fold (TREE_OPERAND (stmt, 1));
- if (TREE_CODE (cached_lhs) != SSA_NAME
- && !is_gimple_min_invariant (cached_lhs))
- cached_lhs = lookup_avail_expr (stmt, false);
+ Sadly, we have to handle conditional assignments specially
+ here, because fold expects all the operands of an expression
+ to be folded before the expression itself is folded, but we
+ can't just substitute the folded condition here. */
+ if (TREE_CODE (TREE_OPERAND (stmt, 1)) == COND_EXPR)
+ {
+ tree cond = COND_EXPR_COND (TREE_OPERAND (stmt, 1));
+ cond = fold (cond);
+ if (cond == boolean_true_node)
+ pre_fold_expr = COND_EXPR_THEN (TREE_OPERAND (stmt, 1));
+ else if (cond == boolean_false_node)
+ pre_fold_expr = COND_EXPR_ELSE (TREE_OPERAND (stmt, 1));
+ else
+ pre_fold_expr = TREE_OPERAND (stmt, 1);
+ }
+ else
+ pre_fold_expr = TREE_OPERAND (stmt, 1);
+ if (pre_fold_expr)
+ {
+ cached_lhs = fold (pre_fold_expr);
+ if (TREE_CODE (cached_lhs) != SSA_NAME
+ && !is_gimple_min_invariant (cached_lhs))
+ cached_lhs = lookup_avail_expr (stmt, false);
+ }
/* Restore the statement's original uses/defs. */
i = 0;
{
struct edge_info *edge_info;
- update_bb_profile_for_threading (e->dest, EDGE_FREQUENCY (e),
- e->count, taken_edge);
if (e->aux)
edge_info = e->aux;
else
edge_info = allocate_edge_info (e);
edge_info->redirection_target = taken_edge;
- bb_ann (e->dest)->incoming_edge_threaded = true;
+ bitmap_set_bit (threaded_blocks, e->dest->index);
}
}
}
}
/* Given an expression EXPR (a relational expression or a statement),
- initialize the hash table element pointed by by ELEMENT. */
+ initialize the hash table element pointed to by ELEMENT. */
static void
initialize_hash_element (tree expr, tree lhs, struct expr_hash_elt *element)
{
tree last;
- /* If we are at a leaf node in the dominator tree, see if we can thread
- the edge from BB through its successor.
-
- Do this before we remove entries from our equivalence tables. */
+ /* If we have an outgoing edge to a block with multiple incoming and
+ outgoing edges, then we may be able to thread the edge. ie, we
+ may be able to statically determine which of the outgoing edges
+ will be traversed when the incoming edge from BB is traversed. */
if (single_succ_p (bb)
&& (single_succ_edge (bb)->flags & EDGE_ABNORMAL) == 0
- && (get_immediate_dominator (CDI_DOMINATORS, single_succ (bb)) != bb
- || phi_nodes (single_succ (bb))))
+ && !single_pred_p (single_succ (bb))
+ && !single_succ_p (single_succ (bb)))
{
thread_across_edge (walk_data, single_succ_edge (bb));
extract_true_false_edges_from_block (bb, &true_edge, &false_edge);
- /* If the THEN arm is the end of a dominator tree or has PHI nodes,
- then try to thread through its edge. */
- if (get_immediate_dominator (CDI_DOMINATORS, true_edge->dest) != bb
- || phi_nodes (true_edge->dest))
+ /* Only try to thread the edge if it reaches a target block with
+ more than one predecessor and more than one successor. */
+ if (!single_pred_p (true_edge->dest) && !single_succ_p (true_edge->dest))
{
struct edge_info *edge_info;
unsigned int i;
}
/* Similarly for the ELSE arm. */
- if (get_immediate_dominator (CDI_DOMINATORS, false_edge->dest) != bb
- || phi_nodes (false_edge->dest))
+ if (!single_pred_p (false_edge->dest) && !single_succ_p (false_edge->dest))
{
struct edge_info *edge_info;
unsigned int i;
the array backwards popping off records associated with our
block. Once we hit a record not associated with our block
we are done. */
- varray_type var_vrp_records;
+ VEC(vrp_element_p,heap) **var_vrp_records;
if (var == NULL)
break;
slot = htab_find_slot (vrp_data, &vrp_hash_elt, NO_INSERT);
vrp_hash_elt_p = (struct vrp_hash_elt *) *slot;
- var_vrp_records = vrp_hash_elt_p->records;
+ var_vrp_records = &vrp_hash_elt_p->records;
- while (VARRAY_ACTIVE_SIZE (var_vrp_records) > 0)
+ while (VEC_length (vrp_element_p, *var_vrp_records) > 0)
{
struct vrp_element *element
- = (struct vrp_element *)VARRAY_TOP_GENERIC_PTR (var_vrp_records);
+ = VEC_last (vrp_element_p, *var_vrp_records);
if (element->bb != bb)
break;
- VARRAY_POP (var_vrp_records);
+ VEC_pop (vrp_element_p, *var_vrp_records);
}
}
fprintf (file, " Copies propagated: %6ld\n",
opt_stats.num_copy_prop);
+ fprintf (file, "\nTotal number of DOM iterations: %6ld\n",
+ opt_stats.num_iterations);
+
fprintf (file, "\nHash table statistics:\n");
fprintf (file, " avail_exprs: ");
the hash table and return the result. Otherwise return NULL. */
static tree
-simplify_rhs_and_lookup_avail_expr (struct dom_walk_data *walk_data,
- tree stmt, int insert)
+simplify_rhs_and_lookup_avail_expr (tree stmt, int insert)
{
tree rhs = TREE_OPERAND (stmt, 1);
enum tree_code rhs_code = TREE_CODE (rhs);
dont_fold_assoc:;
}
- /* Transform TRUNC_DIV_EXPR and TRUNC_MOD_EXPR into RSHIFT_EXPR
- and BIT_AND_EXPR respectively if the first operand is greater
- than zero and the second operand is an exact power of two. */
- if ((rhs_code == TRUNC_DIV_EXPR || rhs_code == TRUNC_MOD_EXPR)
- && INTEGRAL_TYPE_P (TREE_TYPE (TREE_OPERAND (rhs, 0)))
- && integer_pow2p (TREE_OPERAND (rhs, 1)))
- {
- tree val;
- tree op = TREE_OPERAND (rhs, 0);
-
- if (TYPE_UNSIGNED (TREE_TYPE (op)))
- {
- val = integer_one_node;
- }
- else
- {
- tree dummy_cond = walk_data->global_data;
-
- if (! dummy_cond)
- {
- dummy_cond = build (GT_EXPR, boolean_type_node,
- op, integer_zero_node);
- dummy_cond = build (COND_EXPR, void_type_node,
- dummy_cond, NULL, NULL);
- walk_data->global_data = dummy_cond;
- }
- else
- {
- TREE_SET_CODE (COND_EXPR_COND (dummy_cond), GT_EXPR);
- TREE_OPERAND (COND_EXPR_COND (dummy_cond), 0) = op;
- TREE_OPERAND (COND_EXPR_COND (dummy_cond), 1)
- = integer_zero_node;
- }
- val = simplify_cond_and_lookup_avail_expr (dummy_cond, NULL, false);
- }
-
- if (val && integer_onep (val))
- {
- tree t;
- tree op0 = TREE_OPERAND (rhs, 0);
- tree op1 = TREE_OPERAND (rhs, 1);
-
- if (rhs_code == TRUNC_DIV_EXPR)
- t = build (RSHIFT_EXPR, TREE_TYPE (op0), op0,
- build_int_cst (NULL_TREE, tree_log2 (op1)));
- else
- t = build (BIT_AND_EXPR, TREE_TYPE (op0), op0,
- local_fold (build (MINUS_EXPR, TREE_TYPE (op1),
- op1, integer_one_node)));
-
- result = update_rhs_and_lookup_avail_expr (stmt, t, insert);
- }
- }
-
- /* Transform ABS (X) into X or -X as appropriate. */
- if (rhs_code == ABS_EXPR
- && INTEGRAL_TYPE_P (TREE_TYPE (TREE_OPERAND (rhs, 0))))
- {
- tree val;
- tree op = TREE_OPERAND (rhs, 0);
- tree type = TREE_TYPE (op);
-
- if (TYPE_UNSIGNED (type))
- {
- val = integer_zero_node;
- }
- else
- {
- tree dummy_cond = walk_data->global_data;
-
- if (! dummy_cond)
- {
- dummy_cond = build (LE_EXPR, boolean_type_node,
- op, integer_zero_node);
- dummy_cond = build (COND_EXPR, void_type_node,
- dummy_cond, NULL, NULL);
- walk_data->global_data = dummy_cond;
- }
- else
- {
- TREE_SET_CODE (COND_EXPR_COND (dummy_cond), LE_EXPR);
- TREE_OPERAND (COND_EXPR_COND (dummy_cond), 0) = op;
- TREE_OPERAND (COND_EXPR_COND (dummy_cond), 1)
- = build_int_cst (type, 0);
- }
- val = simplify_cond_and_lookup_avail_expr (dummy_cond, NULL, false);
-
- if (!val)
- {
- TREE_SET_CODE (COND_EXPR_COND (dummy_cond), GE_EXPR);
- TREE_OPERAND (COND_EXPR_COND (dummy_cond), 0) = op;
- TREE_OPERAND (COND_EXPR_COND (dummy_cond), 1)
- = build_int_cst (type, 0);
-
- val = simplify_cond_and_lookup_avail_expr (dummy_cond,
- NULL, false);
-
- if (val)
- {
- if (integer_zerop (val))
- val = integer_one_node;
- else if (integer_onep (val))
- val = integer_zero_node;
- }
- }
- }
-
- if (val
- && (integer_onep (val) || integer_zerop (val)))
- {
- tree t;
-
- if (integer_onep (val))
- t = build1 (NEGATE_EXPR, TREE_TYPE (op), op);
- else
- t = op;
-
- result = update_rhs_and_lookup_avail_expr (stmt, t, insert);
- }
- }
-
/* Optimize *"foo" into 'f'. This is done here rather than
in fold to avoid problems with stuff like &*"foo". */
if (TREE_CODE (rhs) == INDIRECT_REF || TREE_CODE (rhs) == ARRAY_REF)
{
tree def_rhs = TREE_OPERAND (def_stmt, 1);
+
+ /* If either operand to the comparison is a pointer to
+ a function, then we can not apply this optimization
+ as some targets require function pointers to be
+ canonicalized and in this case this optimization would
+ eliminate a necessary canonicalization. */
+ if ((POINTER_TYPE_P (TREE_TYPE (op0))
+ && TREE_CODE (TREE_TYPE (TREE_TYPE (op0))) == FUNCTION_TYPE)
+ || (POINTER_TYPE_P (TREE_TYPE (op1))
+ && TREE_CODE (TREE_TYPE (TREE_TYPE (op1))) == FUNCTION_TYPE))
+ return NULL;
+
/* Now make sure the RHS of the MODIFY_EXPR is a typecast. */
if ((TREE_CODE (def_rhs) == NOP_EXPR
|| TREE_CODE (def_rhs) == CONVERT_EXPR)
> TYPE_PRECISION (TREE_TYPE (def_rhs)))
return NULL;
+ /* If the inner type of the conversion is a pointer to
+ a function, then we can not apply this optimization
+ as some targets require function pointers to be
+ canonicalized. This optimization would result in
+ canonicalization of the pointer when it was not originally
+ needed/intended. */
+ if (POINTER_TYPE_P (def_rhs_inner_type)
+ && TREE_CODE (TREE_TYPE (def_rhs_inner_type)) == FUNCTION_TYPE)
+ return NULL;
+
/* What we want to prove is that if we convert OP1 to
the type of the object inside the NOP_EXPR that the
result is still equivalent to SRC.
int limit;
tree low, high, cond_low, cond_high;
int lowequal, highequal, swapped, no_overlap, subset, cond_inverted;
- varray_type vrp_records;
+ VEC(vrp_element_p,heap) **vrp_records;
struct vrp_element *element;
struct vrp_hash_elt vrp_hash_elt, *vrp_hash_elt_p;
void **slot;
return NULL;
vrp_hash_elt_p = (struct vrp_hash_elt *) *slot;
- vrp_records = vrp_hash_elt_p->records;
- if (vrp_records == NULL)
- return NULL;
+ vrp_records = &vrp_hash_elt_p->records;
- limit = VARRAY_ACTIVE_SIZE (vrp_records);
+ limit = VEC_length (vrp_element_p, *vrp_records);
/* If we have no value range records for this variable, or we are
unable to extract a range for this condition, then there is
conditional into the current range.
These properties also help us avoid unnecessary work. */
- element
- = (struct vrp_element *)VARRAY_GENERIC_PTR (vrp_records, limit - 1);
+ element = VEC_last (vrp_element_p, *vrp_records);
if (element->high && element->low)
{
{
/* Get the high/low value from the previous element. */
struct vrp_element *prev
- = (struct vrp_element *)VARRAY_GENERIC_PTR (vrp_records,
- limit - 2);
+ = VEC_index (vrp_element_p, *vrp_records, limit - 2);
low = prev->low;
high = prev->high;
{
tree labels = SWITCH_LABELS (stmt);
int i, n_labels = TREE_VEC_LENGTH (labels);
- tree *info = xcalloc (n_basic_blocks, sizeof (tree));
+ tree *info = xcalloc (last_basic_block, sizeof (tree));
edge e;
edge_iterator ei;
table. */
static bool
-eliminate_redundant_computations (struct dom_walk_data *walk_data,
- tree stmt, stmt_ann_t ann)
+eliminate_redundant_computations (tree stmt, stmt_ann_t ann)
{
tree *expr_p, def = NULL_TREE;
bool insert = true;
tree cached_lhs;
bool retval = false;
+ bool modify_expr_p = false;
if (TREE_CODE (stmt) == MODIFY_EXPR)
def = TREE_OPERAND (stmt, 0);
then try to simplify the RHS and lookup the new RHS in the
hash table. */
if (! cached_lhs && TREE_CODE (stmt) == MODIFY_EXPR)
- cached_lhs = simplify_rhs_and_lookup_avail_expr (walk_data, stmt, insert);
+ cached_lhs = simplify_rhs_and_lookup_avail_expr (stmt, insert);
/* Similarly if this is a COND_EXPR and we did not find its
expression in the hash table, simplify the condition and
try again. */
else if (TREE_CODE (stmt) == SWITCH_EXPR)
expr_p = &SWITCH_COND (stmt);
else if (TREE_CODE (stmt) == RETURN_EXPR && TREE_OPERAND (stmt, 0))
- expr_p = &TREE_OPERAND (TREE_OPERAND (stmt, 0), 1);
+ {
+ expr_p = &TREE_OPERAND (TREE_OPERAND (stmt, 0), 1);
+ modify_expr_p = true;
+ }
else
- expr_p = &TREE_OPERAND (stmt, 1);
+ {
+ expr_p = &TREE_OPERAND (stmt, 1);
+ modify_expr_p = true;
+ }
/* It is safe to ignore types here since we have already done
type checking in the hashing and equality routines. In fact
propagation. Also, make sure that it is safe to propagate
CACHED_LHS into *EXPR_P. */
if (cached_lhs
- && (TREE_CODE (cached_lhs) != SSA_NAME
+ && ((TREE_CODE (cached_lhs) != SSA_NAME
+ && (modify_expr_p
+ || tree_ssa_useless_type_conversion_1 (TREE_TYPE (*expr_p),
+ TREE_TYPE (cached_lhs))))
|| may_propagate_copy (*expr_p, cached_lhs)))
{
if (dump_file && (dump_flags & TDF_DETAILS))
|| (POINTER_TYPE_P (TREE_TYPE (*expr_p))
&& is_gimple_min_invariant (cached_lhs)))
retval = true;
+
+ if (modify_expr_p
+ && !tree_ssa_useless_type_conversion_1 (TREE_TYPE (*expr_p),
+ TREE_TYPE (cached_lhs)))
+ cached_lhs = fold_convert (TREE_TYPE (*expr_p), cached_lhs);
propagate_tree_value (expr_p, cached_lhs);
mark_stmt_modified (stmt);
|| is_gimple_min_invariant (rhs)))
SSA_NAME_VALUE (lhs) = rhs;
- if (expr_computes_nonzero (rhs))
+ if (tree_expr_nonzero_p (rhs))
record_var_is_nonzero (lhs);
}
}
-/* Optimize the statement pointed by iterator SI.
+/* Optimize the statement pointed to by iterator SI.
We try to perform some simplistic global redundancy elimination and
constant propagation:
the variable in the LHS in the CONST_AND_COPIES table. */
static void
-optimize_stmt (struct dom_walk_data *walk_data, basic_block bb,
- block_stmt_iterator si)
+optimize_stmt (struct dom_walk_data *walk_data ATTRIBUTE_UNUSED,
+ basic_block bb, block_stmt_iterator si)
{
stmt_ann_t ann;
tree stmt, old_stmt;
if (may_optimize_p)
may_have_exposed_new_symbols
- |= eliminate_redundant_computations (walk_data, stmt, ann);
+ |= eliminate_redundant_computations (stmt, ann);
/* Record any additional equivalences created by this statement. */
if (TREE_CODE (stmt) == MODIFY_EXPR)
NULL_TREE.
Also, when an expression is first inserted in the AVAIL_EXPRS table, it
- is also added to the stack pointed by BLOCK_AVAIL_EXPRS_P, so that they
+ is also added to the stack pointed to by BLOCK_AVAIL_EXPRS_P, so that they
can be removed when we finish processing this block and its children.
NOTE: This function assumes that STMT is a MODIFY_EXPR node that
{
tree t = element->rhs;
free (element);
-
- if (TREE_CODE (t) == EQ_EXPR)
- return boolean_false_node;
- else
- return boolean_true_node;
+ return constant_boolean_node (TREE_CODE (t) != EQ_EXPR,
+ TREE_TYPE (t));
}
}
{
struct vrp_hash_elt *vrp_hash_elt;
struct vrp_element *element;
- varray_type *vrp_records_p;
+ VEC(vrp_element_p,heap) **vrp_records_p;
void **slot;
if (*slot == NULL)
*slot = (void *) vrp_hash_elt;
else
- free (vrp_hash_elt);
+ vrp_free (vrp_hash_elt);
vrp_hash_elt = (struct vrp_hash_elt *) *slot;
vrp_records_p = &vrp_hash_elt->records;
element->cond = cond;
element->bb = bb;
- if (*vrp_records_p == NULL)
- VARRAY_GENERIC_PTR_INIT (*vrp_records_p, 2, "vrp records");
-
- VARRAY_PUSH_GENERIC_PTR (*vrp_records_p, element);
+ VEC_safe_push (vrp_element_p, heap, *vrp_records_p, element);
VEC_safe_push (tree, heap, vrp_variables_stack, TREE_OPERAND (cond, 0));
}
}
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