/* Support routines for Value Range Propagation (VRP).
- Copyright (C) 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+ Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
Contributed by Diego Novillo <dnovillo@redhat.com>.
This file is part of GCC.
#include "tree-pass.h"
#include "tree-dump.h"
#include "timevar.h"
-#include "diagnostic.h"
+#include "tree-pretty-print.h"
+#include "gimple-pretty-print.h"
+#include "diagnostic-core.h"
#include "toplev.h"
#include "intl.h"
#include "cfgloop.h"
&& integer_zerop (vr->max);
}
+/* Return true if max and min of VR are INTEGER_CST. It's not necessary
+ a singleton. */
+
+static inline bool
+range_int_cst_p (value_range_t *vr)
+{
+ return (vr->type == VR_RANGE
+ && TREE_CODE (vr->max) == INTEGER_CST
+ && TREE_CODE (vr->min) == INTEGER_CST
+ && !TREE_OVERFLOW (vr->max)
+ && !TREE_OVERFLOW (vr->min));
+}
+
+/* Return true if VR is a INTEGER_CST singleton. */
+
+static inline bool
+range_int_cst_singleton_p (value_range_t *vr)
+{
+ return (range_int_cst_p (vr)
+ && tree_int_cst_equal (vr->min, vr->max));
+}
/* Return true if value range VR involves at least one symbol. */
gimple_assign_rhs1 (stmt),
gimple_assign_rhs2 (stmt),
strict_overflow_p);
+ case GIMPLE_TERNARY_RHS:
+ return false;
case GIMPLE_SINGLE_RHS:
return tree_single_nonnegative_warnv_p (gimple_assign_rhs1 (stmt),
strict_overflow_p);
gimple_assign_rhs1 (stmt),
gimple_assign_rhs2 (stmt),
strict_overflow_p);
+ case GIMPLE_TERNARY_RHS:
+ return false;
case GIMPLE_SINGLE_RHS:
return tree_single_nonzero_warnv_p (gimple_assign_rhs1 (stmt),
strict_overflow_p);
tree base = get_base_address (TREE_OPERAND (expr, 0));
if (base != NULL_TREE
- && TREE_CODE (base) == INDIRECT_REF
+ && TREE_CODE (base) == MEM_REF
&& TREE_CODE (TREE_OPERAND (base, 0)) == SSA_NAME)
{
value_range_t *vr = get_value_range (TREE_OPERAND (base, 0));
{
value_range_t *vr = get_value_range (t);
+ if (INTEGRAL_TYPE_P (t)
+ && TYPE_UNSIGNED (t))
+ return true;
+
if (!vr)
return false;
/* Make sure to not set TREE_OVERFLOW on the final type
conversion. We are willingly interpreting large positive
unsigned values as negative singed values here. */
- min = force_fit_type_double (TREE_TYPE (var), TREE_INT_CST_LOW (min),
- TREE_INT_CST_HIGH (min), 0, false);
- max = force_fit_type_double (TREE_TYPE (var), TREE_INT_CST_LOW (max),
- TREE_INT_CST_HIGH (max), 0, false);
+ min = force_fit_type_double (TREE_TYPE (var), tree_to_double_int (min),
+ 0, false);
+ max = force_fit_type_double (TREE_TYPE (var), tree_to_double_int (max),
+ 0, false);
/* We can transform a max, min range to an anti-range or
vice-versa. Use set_and_canonicalize_value_range which does
}
+/* For range VR compute two double_int bitmasks. In *MAY_BE_NONZERO
+ bitmask if some bit is unset, it means for all numbers in the range
+ the bit is 0, otherwise it might be 0 or 1. In *MUST_BE_NONZERO
+ bitmask if some bit is set, it means for all numbers in the range
+ the bit is 1, otherwise it might be 0 or 1. */
+
+static bool
+zero_nonzero_bits_from_vr (value_range_t *vr, double_int *may_be_nonzero,
+ double_int *must_be_nonzero)
+{
+ if (range_int_cst_p (vr))
+ {
+ if (range_int_cst_singleton_p (vr))
+ {
+ *may_be_nonzero = tree_to_double_int (vr->min);
+ *must_be_nonzero = *may_be_nonzero;
+ return true;
+ }
+ if (tree_int_cst_sgn (vr->min) >= 0)
+ {
+ double_int dmin = tree_to_double_int (vr->min);
+ double_int dmax = tree_to_double_int (vr->max);
+ double_int xor_mask = double_int_xor (dmin, dmax);
+ *may_be_nonzero = double_int_ior (dmin, dmax);
+ *must_be_nonzero = double_int_and (dmin, dmax);
+ if (xor_mask.high != 0)
+ {
+ unsigned HOST_WIDE_INT mask
+ = ((unsigned HOST_WIDE_INT) 1
+ << floor_log2 (xor_mask.high)) - 1;
+ may_be_nonzero->low = ALL_ONES;
+ may_be_nonzero->high |= mask;
+ must_be_nonzero->low = 0;
+ must_be_nonzero->high &= ~mask;
+ }
+ else if (xor_mask.low != 0)
+ {
+ unsigned HOST_WIDE_INT mask
+ = ((unsigned HOST_WIDE_INT) 1
+ << floor_log2 (xor_mask.low)) - 1;
+ may_be_nonzero->low |= mask;
+ must_be_nonzero->low &= ~mask;
+ }
+ return true;
+ }
+ }
+ may_be_nonzero->low = ALL_ONES;
+ may_be_nonzero->high = ALL_ONES;
+ must_be_nonzero->low = 0;
+ must_be_nonzero->high = 0;
+ return false;
+}
+
+
/* Extract range information from a binary expression EXPR based on
the ranges of each of its operands and the expression code. */
&& code != CEIL_DIV_EXPR
&& code != EXACT_DIV_EXPR
&& code != ROUND_DIV_EXPR
+ && code != TRUNC_MOD_EXPR
&& code != RSHIFT_EXPR
&& code != MIN_EXPR
&& code != MAX_EXPR
&& code != CEIL_DIV_EXPR
&& code != EXACT_DIV_EXPR
&& code != ROUND_DIV_EXPR
+ && code != TRUNC_MOD_EXPR
&& (vr0.type == VR_VARYING
|| vr1.type == VR_VARYING
|| vr0.type != vr1.type
return;
}
- gcc_assert (code == POINTER_PLUS_EXPR);
- /* For pointer types, we are really only interested in asserting
- whether the expression evaluates to non-NULL. */
- if (range_is_nonnull (&vr0) || range_is_nonnull (&vr1))
- set_value_range_to_nonnull (vr, expr_type);
- else if (range_is_null (&vr0) && range_is_null (&vr1))
- set_value_range_to_null (vr, expr_type);
+ if (code == POINTER_PLUS_EXPR)
+ {
+ /* For pointer types, we are really only interested in asserting
+ whether the expression evaluates to non-NULL. */
+ if (range_is_nonnull (&vr0) || range_is_nonnull (&vr1))
+ set_value_range_to_nonnull (vr, expr_type);
+ else if (range_is_null (&vr0) && range_is_null (&vr1))
+ set_value_range_to_null (vr, expr_type);
+ else
+ set_value_range_to_varying (vr);
+ }
+ else if (code == BIT_AND_EXPR)
+ {
+ /* For pointer types, we are really only interested in asserting
+ whether the expression evaluates to non-NULL. */
+ if (range_is_nonnull (&vr0) && range_is_nonnull (&vr1))
+ set_value_range_to_nonnull (vr, expr_type);
+ else if (range_is_null (&vr0) || range_is_null (&vr1))
+ set_value_range_to_null (vr, expr_type);
+ else
+ set_value_range_to_varying (vr);
+ }
else
- set_value_range_to_varying (vr);
+ gcc_unreachable ();
return;
}
}
}
}
+ else if (code == TRUNC_MOD_EXPR)
+ {
+ bool sop = false;
+ if (vr1.type != VR_RANGE
+ || symbolic_range_p (&vr1)
+ || range_includes_zero_p (&vr1)
+ || vrp_val_is_min (vr1.min))
+ {
+ set_value_range_to_varying (vr);
+ return;
+ }
+ type = VR_RANGE;
+ /* Compute MAX <|vr1.min|, |vr1.max|> - 1. */
+ max = fold_unary_to_constant (ABS_EXPR, TREE_TYPE (vr1.min), vr1.min);
+ if (tree_int_cst_lt (max, vr1.max))
+ max = vr1.max;
+ max = int_const_binop (MINUS_EXPR, max, integer_one_node, 0);
+ /* If the dividend is non-negative the modulus will be
+ non-negative as well. */
+ if (TYPE_UNSIGNED (TREE_TYPE (max))
+ || (vrp_expr_computes_nonnegative (op0, &sop) && !sop))
+ min = build_int_cst (TREE_TYPE (max), 0);
+ else
+ min = fold_unary_to_constant (NEGATE_EXPR, TREE_TYPE (max), max);
+ }
else if (code == MINUS_EXPR)
{
/* If we have a MINUS_EXPR with two VR_ANTI_RANGEs, drop to
min = vrp_int_const_binop (code, vr0.min, vr1.max);
max = vrp_int_const_binop (code, vr0.max, vr1.min);
}
- else if (code == BIT_AND_EXPR)
+ else if (code == BIT_AND_EXPR || code == BIT_IOR_EXPR)
{
- if (vr0.type == VR_RANGE
- && vr0.min == vr0.max
- && TREE_CODE (vr0.max) == INTEGER_CST
- && !TREE_OVERFLOW (vr0.max)
- && tree_int_cst_sgn (vr0.max) >= 0)
- {
- min = build_int_cst (expr_type, 0);
- max = vr0.max;
- }
- else if (vr1.type == VR_RANGE
- && vr1.min == vr1.max
- && TREE_CODE (vr1.max) == INTEGER_CST
- && !TREE_OVERFLOW (vr1.max)
- && tree_int_cst_sgn (vr1.max) >= 0)
- {
- type = VR_RANGE;
- min = build_int_cst (expr_type, 0);
- max = vr1.max;
- }
- else
+ bool vr0_int_cst_singleton_p, vr1_int_cst_singleton_p;
+ bool int_cst_range0, int_cst_range1;
+ double_int may_be_nonzero0, may_be_nonzero1;
+ double_int must_be_nonzero0, must_be_nonzero1;
+
+ vr0_int_cst_singleton_p = range_int_cst_singleton_p (&vr0);
+ vr1_int_cst_singleton_p = range_int_cst_singleton_p (&vr1);
+ int_cst_range0 = zero_nonzero_bits_from_vr (&vr0, &may_be_nonzero0,
+ &must_be_nonzero0);
+ int_cst_range1 = zero_nonzero_bits_from_vr (&vr1, &may_be_nonzero1,
+ &must_be_nonzero1);
+
+ type = VR_RANGE;
+ if (vr0_int_cst_singleton_p && vr1_int_cst_singleton_p)
+ min = max = int_const_binop (code, vr0.max, vr1.max, 0);
+ else if (!int_cst_range0 && !int_cst_range1)
{
set_value_range_to_varying (vr);
return;
}
- }
- else if (code == BIT_IOR_EXPR)
- {
- if (vr0.type == VR_RANGE
- && vr1.type == VR_RANGE
- && TREE_CODE (vr0.min) == INTEGER_CST
- && TREE_CODE (vr1.min) == INTEGER_CST
- && TREE_CODE (vr0.max) == INTEGER_CST
- && TREE_CODE (vr1.max) == INTEGER_CST
- && tree_int_cst_sgn (vr0.min) >= 0
- && tree_int_cst_sgn (vr1.min) >= 0)
- {
- double_int vr0_max = tree_to_double_int (vr0.max);
- double_int vr1_max = tree_to_double_int (vr1.max);
- double_int ior_max;
-
- /* Set all bits to the right of the most significant one to 1.
- For example, [0, 4] | [4, 4] = [4, 7]. */
- ior_max.low = vr0_max.low | vr1_max.low;
- ior_max.high = vr0_max.high | vr1_max.high;
- if (ior_max.high != 0)
+ else if (code == BIT_AND_EXPR)
+ {
+ min = double_int_to_tree (expr_type,
+ double_int_and (must_be_nonzero0,
+ must_be_nonzero1));
+ max = double_int_to_tree (expr_type,
+ double_int_and (may_be_nonzero0,
+ may_be_nonzero1));
+ if (TREE_OVERFLOW (min) || tree_int_cst_sgn (min) < 0)
+ min = NULL_TREE;
+ if (TREE_OVERFLOW (max) || tree_int_cst_sgn (max) < 0)
+ max = NULL_TREE;
+ if (int_cst_range0 && tree_int_cst_sgn (vr0.min) >= 0)
{
- ior_max.low = ~(unsigned HOST_WIDE_INT)0u;
- ior_max.high |= ((HOST_WIDE_INT) 1
- << floor_log2 (ior_max.high)) - 1;
+ if (min == NULL_TREE)
+ min = build_int_cst (expr_type, 0);
+ if (max == NULL_TREE || tree_int_cst_lt (vr0.max, max))
+ max = vr0.max;
+ }
+ if (int_cst_range1 && tree_int_cst_sgn (vr1.min) >= 0)
+ {
+ if (min == NULL_TREE)
+ min = build_int_cst (expr_type, 0);
+ if (max == NULL_TREE || tree_int_cst_lt (vr1.max, max))
+ max = vr1.max;
}
- else if (ior_max.low != 0)
- ior_max.low |= ((unsigned HOST_WIDE_INT) 1u
- << floor_log2 (ior_max.low)) - 1;
-
- /* Both of these endpoints are conservative. */
- min = vrp_int_const_binop (MAX_EXPR, vr0.min, vr1.min);
- max = double_int_to_tree (expr_type, ior_max);
}
- else
+ else if (!int_cst_range0
+ || !int_cst_range1
+ || tree_int_cst_sgn (vr0.min) < 0
+ || tree_int_cst_sgn (vr1.min) < 0)
{
set_value_range_to_varying (vr);
return;
}
+ else
+ {
+ min = double_int_to_tree (expr_type,
+ double_int_ior (must_be_nonzero0,
+ must_be_nonzero1));
+ max = double_int_to_tree (expr_type,
+ double_int_ior (may_be_nonzero0,
+ may_be_nonzero1));
+ if (TREE_OVERFLOW (min) || tree_int_cst_sgn (min) < 0)
+ min = vr0.min;
+ else
+ min = vrp_int_const_binop (MAX_EXPR, min, vr0.min);
+ if (TREE_OVERFLOW (max) || tree_int_cst_sgn (max) < 0)
+ max = NULL_TREE;
+ min = vrp_int_const_binop (MAX_EXPR, min, vr1.min);
+ }
}
else
gcc_unreachable ();
|| vr0.type == VR_ANTI_RANGE)
&& TREE_CODE (vr0.min) == INTEGER_CST
&& TREE_CODE (vr0.max) == INTEGER_CST
- && !is_overflow_infinity (vr0.min)
- && !is_overflow_infinity (vr0.max)
+ && (!is_overflow_infinity (vr0.min)
+ || (vr0.type == VR_RANGE
+ && TYPE_PRECISION (outer_type) > TYPE_PRECISION (inner_type)
+ && needs_overflow_infinity (outer_type)
+ && supports_overflow_infinity (outer_type)))
+ && (!is_overflow_infinity (vr0.max)
+ || (vr0.type == VR_RANGE
+ && TYPE_PRECISION (outer_type) > TYPE_PRECISION (inner_type)
+ && needs_overflow_infinity (outer_type)
+ && supports_overflow_infinity (outer_type)))
&& (TYPE_PRECISION (outer_type) >= TYPE_PRECISION (inner_type)
|| (vr0.type == VR_RANGE
&& integer_zerop (int_const_binop (RSHIFT_EXPR,
{
tree new_min, new_max;
new_min = force_fit_type_double (outer_type,
- TREE_INT_CST_LOW (vr0.min),
- TREE_INT_CST_HIGH (vr0.min), 0, 0);
+ tree_to_double_int (vr0.min),
+ 0, false);
new_max = force_fit_type_double (outer_type,
- TREE_INT_CST_LOW (vr0.max),
- TREE_INT_CST_HIGH (vr0.max), 0, 0);
+ tree_to_double_int (vr0.max),
+ 0, false);
+ if (is_overflow_infinity (vr0.min))
+ new_min = negative_overflow_infinity (outer_type);
+ if (is_overflow_infinity (vr0.max))
+ new_max = positive_overflow_infinity (outer_type);
set_and_canonicalize_value_range (vr, vr0.type,
new_min, new_max, NULL);
return;
adjust_range_with_scev (value_range_t *vr, struct loop *loop,
gimple stmt, tree var)
{
- tree init, step, chrec, tmin, tmax, min, max, type;
+ tree init, step, chrec, tmin, tmax, min, max, type, tem;
enum ev_direction dir;
/* TODO. Don't adjust anti-ranges. An anti-range may provide
return;
init = initial_condition_in_loop_num (chrec, loop->num);
+ tem = op_with_constant_singleton_value_range (init);
+ if (tem)
+ init = tem;
step = evolution_part_in_loop_num (chrec, loop->num);
+ tem = op_with_constant_singleton_value_range (step);
+ if (tem)
+ step = tem;
/* If STEP is symbolic, we can't know whether INIT will be the
minimum or maximum value in the range. Also, unless INIT is
/* Dump value range VR to stderr. */
-void
+DEBUG_FUNCTION void
debug_value_range (value_range_t *vr)
{
dump_value_range (stderr, vr);
/* Dump all value ranges to stderr. */
-void
+DEBUG_FUNCTION void
debug_all_value_ranges (void)
{
dump_all_value_ranges (stderr);
/* Dump all the registered assertions for NAME to stderr. */
-void
+DEBUG_FUNCTION void
debug_asserts_for (tree name)
{
dump_asserts_for (stderr, name);
/* Dump all the registered assertions for all the names to stderr. */
-void
+DEBUG_FUNCTION void
debug_all_asserts (void)
{
dump_all_asserts (stderr);
{
value_range_t* vr = NULL;
tree low_sub, up_sub;
- tree low_bound, up_bound = array_ref_up_bound (ref);
+ tree low_bound, up_bound, up_bound_p1;
+ tree base;
+
+ if (TREE_NO_WARNING (ref))
+ return;
low_sub = up_sub = TREE_OPERAND (ref, 1);
+ up_bound = array_ref_up_bound (ref);
- if (!up_bound || TREE_NO_WARNING (ref)
- || TREE_CODE (up_bound) != INTEGER_CST
- /* Can not check flexible arrays. */
- || (TYPE_SIZE (TREE_TYPE (ref)) == NULL_TREE
- && TYPE_DOMAIN (TREE_TYPE (ref)) != NULL_TREE
- && TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (ref))) == NULL_TREE)
- /* Accesses after the end of arrays of size 0 (gcc
- extension) and 1 are likely intentional ("struct
- hack"). */
- || compare_tree_int (up_bound, 1) <= 0)
+ /* Can not check flexible arrays. */
+ if (!up_bound
+ || TREE_CODE (up_bound) != INTEGER_CST)
return;
+ /* Accesses to trailing arrays via pointers may access storage
+ beyond the types array bounds. */
+ base = get_base_address (ref);
+ if (base && TREE_CODE (base) == MEM_REF)
+ {
+ tree cref, next = NULL_TREE;
+
+ if (TREE_CODE (TREE_OPERAND (ref, 0)) != COMPONENT_REF)
+ return;
+
+ cref = TREE_OPERAND (ref, 0);
+ if (TREE_CODE (TREE_TYPE (TREE_OPERAND (cref, 0))) == RECORD_TYPE)
+ for (next = TREE_CHAIN (TREE_OPERAND (cref, 1));
+ next && TREE_CODE (next) != FIELD_DECL;
+ next = TREE_CHAIN (next))
+ ;
+
+ /* If this is the last field in a struct type or a field in a
+ union type do not warn. */
+ if (!next)
+ return;
+ }
+
low_bound = array_ref_low_bound (ref);
+ up_bound_p1 = int_const_binop (PLUS_EXPR, up_bound, integer_one_node, 0);
if (TREE_CODE (low_sub) == SSA_NAME)
{
}
}
else if (TREE_CODE (up_sub) == INTEGER_CST
- && tree_int_cst_lt (up_bound, up_sub)
- && !tree_int_cst_equal (up_bound, up_sub)
- && (!ignore_off_by_one
- || !tree_int_cst_equal (int_const_binop (PLUS_EXPR,
- up_bound,
- integer_one_node,
- 0),
- up_sub)))
+ && (ignore_off_by_one
+ ? (tree_int_cst_lt (up_bound, up_sub)
+ && !tree_int_cst_equal (up_bound_p1, up_sub))
+ : (tree_int_cst_lt (up_bound, up_sub)
+ || tree_int_cst_equal (up_bound_p1, up_sub))))
{
warning_at (location, OPT_Warray_bounds,
"array subscript is above array bounds");
t = TREE_OPERAND (t, 0);
}
while (handled_component_p (t));
+
+ if (TREE_CODE (t) == MEM_REF
+ && TREE_CODE (TREE_OPERAND (t, 0)) == ADDR_EXPR
+ && !TREE_NO_WARNING (t))
+ {
+ tree tem = TREE_OPERAND (TREE_OPERAND (t, 0), 0);
+ tree low_bound, up_bound, el_sz;
+ double_int idx;
+ if (TREE_CODE (TREE_TYPE (tem)) != ARRAY_TYPE
+ || TREE_CODE (TREE_TYPE (TREE_TYPE (tem))) == ARRAY_TYPE
+ || !TYPE_DOMAIN (TREE_TYPE (tem)))
+ return;
+
+ low_bound = TYPE_MIN_VALUE (TYPE_DOMAIN (TREE_TYPE (tem)));
+ up_bound = TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (tem)));
+ el_sz = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (tem)));
+ if (!low_bound
+ || TREE_CODE (low_bound) != INTEGER_CST
+ || !up_bound
+ || TREE_CODE (up_bound) != INTEGER_CST
+ || !el_sz
+ || TREE_CODE (el_sz) != INTEGER_CST)
+ return;
+
+ idx = mem_ref_offset (t);
+ idx = double_int_sdiv (idx, tree_to_double_int (el_sz), TRUNC_DIV_EXPR);
+ if (double_int_scmp (idx, double_int_zero) < 0)
+ {
+ warning_at (location, OPT_Warray_bounds,
+ "array subscript is below array bounds");
+ TREE_NO_WARNING (t) = 1;
+ }
+ else if (double_int_scmp (idx,
+ double_int_add
+ (double_int_add
+ (tree_to_double_int (up_bound),
+ double_int_neg
+ (tree_to_double_int (low_bound))),
+ double_int_one)) > 0)
+ {
+ warning_at (location, OPT_Warray_bounds,
+ "array subscript is above array bounds");
+ TREE_NO_WARNING (t) = 1;
+ }
+ }
}
/* walk_tree() callback that checks if *TP is
if (TREE_CODE (t) == ARRAY_REF)
check_array_ref (location, t, false /*ignore_off_by_one*/);
- if (TREE_CODE (t) == INDIRECT_REF
+ if (TREE_CODE (t) == MEM_REF
|| (TREE_CODE (t) == RETURN_EXPR && TREE_OPERAND (t, 0)))
search_for_addr_array (TREE_OPERAND (t, 0), location);
/* If the new range is different than the previous value, keep
iterating. */
if (update_value_range (lhs, &vr_result))
- return SSA_PROP_INTERESTING;
+ {
+ if (dump_file && (dump_flags & TDF_DETAILS))
+ {
+ fprintf (dump_file, "Found new range for ");
+ print_generic_expr (dump_file, lhs, 0);
+ fprintf (dump_file, ": ");
+ dump_value_range (dump_file, &vr_result);
+ fprintf (dump_file, "\n\n");
+ }
+
+ return SSA_PROP_INTERESTING;
+ }
/* Nothing changed, don't add outgoing edges. */
return SSA_PROP_NOT_INTERESTING;
size_t i;
prop_value_t *single_val_range;
bool do_value_subst_p;
+ unsigned num = num_ssa_names;
if (dump_file)
{
/* We may have ended with ranges that have exactly one value. Those
values can be substituted as any other const propagated
value using substitute_and_fold. */
- single_val_range = XCNEWVEC (prop_value_t, num_ssa_names);
+ single_val_range = XCNEWVEC (prop_value_t, num);
do_value_subst_p = false;
- for (i = 0; i < num_ssa_names; i++)
+ for (i = 0; i < num; i++)
if (vr_value[i]
&& vr_value[i]->type == VR_RANGE
&& vr_value[i]->min == vr_value[i]->max
single_val_range = NULL;
}
- substitute_and_fold (single_val_range, vrp_fold_stmt);
+ substitute_and_fold (single_val_range, vrp_fold_stmt, false);
if (warn_array_bounds)
check_all_array_refs ();
identify_jump_threads ();
/* Free allocated memory. */
- for (i = 0; i < num_ssa_names; i++)
+ for (i = 0; i < num; i++)
if (vr_value[i])
{
BITMAP_FREE (vr_value[i]->equiv);
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