static int *vr_phi_edge_counts;
typedef struct {
- gimple stmt;
+ gswitch *stmt;
tree vec;
} switch_update;
the ranges of each of its operands and the expression code. */
static void
-extract_range_from_cond_expr (value_range_t *vr, gimple stmt)
+extract_range_from_cond_expr (value_range_t *vr, gassign *stmt)
{
tree op0, op1;
value_range_t vr0 = VR_INITIALIZER;
in *VR. */
static void
-extract_range_from_assignment (value_range_t *vr, gimple stmt)
+extract_range_from_assignment (value_range_t *vr, gassign *stmt)
{
enum tree_code code = gimple_assign_rhs_code (stmt);
build_assert_expr_for (tree cond, tree v)
{
tree a;
- gimple assertion;
+ gassign *assertion;
gcc_assert (TREE_CODE (v) == SSA_NAME
&& COMPARISON_CLASS_P (cond));
list of assertions for the corresponding operands. */
static void
-find_conditional_asserts (basic_block bb, gimple last)
+find_conditional_asserts (basic_block bb, gcond *last)
{
gimple_stmt_iterator bsi;
tree op;
list of assertions for the corresponding operands. */
static void
-find_switch_asserts (basic_block bb, gimple last)
+find_switch_asserts (basic_block bb, gswitch *last)
{
gimple_stmt_iterator bsi;
tree op;
static void
find_assert_locations_1 (basic_block bb, sbitmap live)
{
- gimple_stmt_iterator si;
gimple last;
last = last_stmt (bb);
&& gimple_code (last) == GIMPLE_COND
&& !fp_predicate (last)
&& !ZERO_SSA_OPERANDS (last, SSA_OP_USE))
- find_conditional_asserts (bb, last);
+ find_conditional_asserts (bb, as_a <gcond *> (last));
/* If BB's last statement is a switch statement involving integer
operands, determine if we need to add ASSERT_EXPRs. */
if (last
&& gimple_code (last) == GIMPLE_SWITCH
&& !ZERO_SSA_OPERANDS (last, SSA_OP_USE))
- find_switch_asserts (bb, last);
+ find_switch_asserts (bb, as_a <gswitch *> (last));
/* Traverse all the statements in BB marking used names and looking
for statements that may infer assertions for their used operands. */
- for (si = gsi_last_bb (bb); !gsi_end_p (si); gsi_prev (&si))
+ for (gimple_stmt_iterator si = gsi_last_bb (bb); !gsi_end_p (si);
+ gsi_prev (&si))
{
gimple stmt;
tree op;
}
/* Traverse all PHI nodes in BB, updating live. */
- for (si = gsi_start_phis (bb); !gsi_end_p (si); gsi_next (&si))
+ for (gphi_iterator si = gsi_start_phis (bb); !gsi_end_p (si);
+ gsi_next (&si))
{
use_operand_p arg_p;
ssa_op_iter i;
- gimple phi = gsi_stmt (si);
+ gphi *phi = si.phi ();
tree res = gimple_phi_result (phi);
if (virtual_operand_p (res))
{
i = loop->latch->index;
unsigned int j = single_succ_edge (loop->latch)->dest_idx;
- for (gimple_stmt_iterator gsi = gsi_start_phis (loop->header);
+ for (gphi_iterator gsi = gsi_start_phis (loop->header);
!gsi_end_p (gsi); gsi_next (&gsi))
{
- gimple phi = gsi_stmt (gsi);
+ gphi *phi = gsi.phi ();
if (virtual_operand_p (gimple_phi_result (phi)))
continue;
tree arg = gimple_phi_arg_def (phi, j);
FOR_EACH_BB_FN (bb, cfun)
{
- gimple_stmt_iterator si;
-
- for (si = gsi_start_phis (bb); !gsi_end_p (si); gsi_next (&si))
+ for (gphi_iterator si = gsi_start_phis (bb); !gsi_end_p (si);
+ gsi_next (&si))
{
- gimple phi = gsi_stmt (si);
+ gphi *phi = si.phi ();
if (!stmt_interesting_for_vrp (phi))
{
tree lhs = PHI_RESULT (phi);
prop_set_simulate_again (phi, true);
}
- for (si = gsi_start_bb (bb); !gsi_end_p (si); gsi_next (&si))
+ for (gimple_stmt_iterator si = gsi_start_bb (bb); !gsi_end_p (si);
+ gsi_next (&si))
{
gimple stmt = gsi_stmt (si);
else if (code == GIMPLE_CALL)
extract_range_basic (&new_vr, stmt);
else
- extract_range_from_assignment (&new_vr, stmt);
+ extract_range_from_assignment (&new_vr, as_a <gassign *> (stmt));
if (update_value_range (lhs, &new_vr))
{
SSA_PROP_VARYING. */
static enum ssa_prop_result
-vrp_visit_cond_stmt (gimple stmt, edge *taken_edge_p)
+vrp_visit_cond_stmt (gcond *stmt, edge *taken_edge_p)
{
tree val;
bool sop;
returned. */
static bool
-find_case_label_index (gimple stmt, size_t start_idx, tree val, size_t *idx)
+find_case_label_index (gswitch *stmt, size_t start_idx, tree val, size_t *idx)
{
size_t n = gimple_switch_num_labels (stmt);
size_t low, high;
Returns true if the default label is not needed. */
static bool
-find_case_label_range (gimple stmt, tree min, tree max, size_t *min_idx,
+find_case_label_range (gswitch *stmt, tree min, tree max, size_t *min_idx,
size_t *max_idx)
{
size_t i, j;
Returns true if the default label is not needed. */
static bool
-find_case_label_ranges (gimple stmt, value_range_t *vr, size_t *min_idx1,
+find_case_label_ranges (gswitch *stmt, value_range_t *vr, size_t *min_idx1,
size_t *max_idx1, size_t *min_idx2,
size_t *max_idx2)
{
SSA_PROP_VARYING. */
static enum ssa_prop_result
-vrp_visit_switch_stmt (gimple stmt, edge *taken_edge_p)
+vrp_visit_switch_stmt (gswitch *stmt, edge *taken_edge_p)
{
tree op, val;
value_range_t *vr;
else if (is_gimple_assign (stmt) || is_gimple_call (stmt))
return vrp_visit_assignment_or_call (stmt, output_p);
else if (gimple_code (stmt) == GIMPLE_COND)
- return vrp_visit_cond_stmt (stmt, taken_edge_p);
+ return vrp_visit_cond_stmt (as_a <gcond *> (stmt), taken_edge_p);
else if (gimple_code (stmt) == GIMPLE_SWITCH)
- return vrp_visit_switch_stmt (stmt, taken_edge_p);
+ return vrp_visit_switch_stmt (as_a <gswitch *> (stmt), taken_edge_p);
/* All other statements produce nothing of interest for VRP, so mark
their outputs varying and prevent further simulation. */
value ranges, set a new range for the LHS of PHI. */
static enum ssa_prop_result
-vrp_visit_phi_node (gimple phi)
+vrp_visit_phi_node (gphi *phi)
{
size_t i;
tree lhs = PHI_RESULT (phi);
else if (need_conversion)
{
tree tem = make_ssa_name (TREE_TYPE (op0), NULL);
- gimple newop = gimple_build_assign_with_ops (BIT_XOR_EXPR, tem, op0, op1);
+ gassign *newop
+ = gimple_build_assign_with_ops (BIT_XOR_EXPR, tem, op0, op1);
gsi_insert_before (gsi, newop, GSI_SAME_STMT);
gimple_assign_set_rhs_with_ops (gsi, NOP_EXPR, tem);
}
the original conditional. */
static bool
-simplify_cond_using_ranges (gimple stmt)
+simplify_cond_using_ranges (gcond *stmt)
{
tree op0 = gimple_cond_lhs (stmt);
tree op1 = gimple_cond_rhs (stmt);
argument. */
static bool
-simplify_switch_using_ranges (gimple stmt)
+simplify_switch_using_ranges (gswitch *stmt)
{
tree op = gimple_switch_index (stmt);
value_range_t *vr;
machine_mode fltmode = TYPE_MODE (TREE_TYPE (gimple_assign_lhs (stmt)));
machine_mode mode;
tree tem;
- gimple conv;
+ gassign *conv;
/* We can only handle constant ranges. */
if (vr->type != VR_RANGE
}
}
else if (gimple_code (stmt) == GIMPLE_COND)
- return simplify_cond_using_ranges (stmt);
+ return simplify_cond_using_ranges (as_a <gcond *> (stmt));
else if (gimple_code (stmt) == GIMPLE_SWITCH)
- return simplify_switch_using_ranges (stmt);
+ return simplify_switch_using_ranges (as_a <gswitch *> (stmt));
else if (is_gimple_call (stmt)
&& gimple_call_internal_p (stmt))
return simplify_internal_call_using_ranges (gsi, stmt);
gimple_assign_rhs2 (stmt),
stmt);
}
- else if (gimple_code (stmt) == GIMPLE_COND)
- val = vrp_evaluate_conditional (gimple_cond_code (stmt),
- gimple_cond_lhs (stmt),
- gimple_cond_rhs (stmt),
+ else if (gcond *cond_stmt = dyn_cast <gcond *> (stmt))
+ val = vrp_evaluate_conditional (gimple_cond_code (cond_stmt),
+ gimple_cond_lhs (cond_stmt),
+ gimple_cond_rhs (cond_stmt),
stmt);
else
return false;
else
{
gcc_assert (gimple_code (stmt) == GIMPLE_COND);
+ gcond *cond_stmt = as_a <gcond *> (stmt);
if (integer_zerop (val))
- gimple_cond_make_false (stmt);
+ gimple_cond_make_false (cond_stmt);
else if (integer_onep (val))
- gimple_cond_make_true (stmt);
+ gimple_cond_make_true (cond_stmt);
else
gcc_unreachable ();
}
static tree
simplify_stmt_for_jump_threading (gimple stmt, gimple within_stmt)
{
- if (gimple_code (stmt) == GIMPLE_COND)
- return vrp_evaluate_conditional (gimple_cond_code (stmt),
- gimple_cond_lhs (stmt),
- gimple_cond_rhs (stmt), within_stmt);
+ if (gcond *cond_stmt = dyn_cast <gcond *> (stmt))
+ return vrp_evaluate_conditional (gimple_cond_code (cond_stmt),
+ gimple_cond_lhs (cond_stmt),
+ gimple_cond_rhs (cond_stmt),
+ within_stmt);
- if (gimple_code (stmt) == GIMPLE_ASSIGN)
+ if (gassign *assign_stmt = dyn_cast <gassign *> (stmt))
{
value_range_t new_vr = VR_INITIALIZER;
- tree lhs = gimple_assign_lhs (stmt);
+ tree lhs = gimple_assign_lhs (assign_stmt);
if (TREE_CODE (lhs) == SSA_NAME
&& (INTEGRAL_TYPE_P (TREE_TYPE (lhs))
|| POINTER_TYPE_P (TREE_TYPE (lhs))))
{
- extract_range_from_assignment (&new_vr, stmt);
+ extract_range_from_assignment (&new_vr, assign_stmt);
if (range_int_cst_singleton_p (&new_vr))
return new_vr.min;
}
identify_jump_threads (void)
{
basic_block bb;
- gimple dummy;
+ gcond *dummy;
int i;
edge e;
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