static inline tree
chrec_fold_poly_cst (enum tree_code code,
tree type,
tree poly,
tree cst)
{
gcc_assert (poly);
gcc_assert (cst);
gcc_assert (TREE_CODE (poly) == POLYNOMIAL_CHREC);
gcc_assert (!is_not_constant_evolution (cst));
switch (code)
{
case PLUS_EXPR:
return build_polynomial_chrec
(CHREC_VARIABLE (poly),
chrec_fold_plus (type, CHREC_LEFT (poly), cst),
CHREC_RIGHT (poly));
case MINUS_EXPR:
return build_polynomial_chrec
(CHREC_VARIABLE (poly),
chrec_fold_minus (type, CHREC_LEFT (poly), cst),
CHREC_RIGHT (poly));
case MULT_EXPR:
return build_polynomial_chrec
(CHREC_VARIABLE (poly),
chrec_fold_multiply (type, CHREC_LEFT (poly), cst),
chrec_fold_multiply (type, CHREC_RIGHT (poly), cst));
default:
return chrec_dont_know;
}
}
tree
chrec_apply (unsigned var,
tree chrec,
tree x)
{
tree type = chrec_type (chrec);
tree res = chrec_dont_know;
if (automatically_generated_chrec_p (chrec)
|| automatically_generated_chrec_p (x)
/* When the symbols are defined in an outer loop, it is possible
to symbolically compute the apply, since the symbols are
constants with respect to the varying loop. */
|| chrec_contains_symbols_defined_in_loop (chrec, var)
|| chrec_contains_symbols (x))
return chrec_dont_know;
if (dump_file && (dump_flags & TDF_DETAILS))
fprintf (dump_file, "(chrec_apply \n");
if (evolution_function_is_affine_p (chrec))
{
/* "{a, +, b} (x)" -> "a + b*x". */
if (TREE_CODE (CHREC_LEFT (chrec)) == INTEGER_CST
&& integer_zerop (CHREC_LEFT (chrec)))
res = chrec_fold_multiply (type, CHREC_RIGHT (chrec), x);
else
res = chrec_fold_plus (type, CHREC_LEFT (chrec),
chrec_fold_multiply (type,
CHREC_RIGHT (chrec), x));
}
else if (TREE_CODE (chrec) != POLYNOMIAL_CHREC)
res = chrec;
else if (TREE_CODE (x) == INTEGER_CST
&& tree_int_cst_sgn (x) == 1)
/* testsuite/.../ssa-chrec-38.c. */
res = chrec_evaluate (var, chrec, x, 0);
else
res = chrec_dont_know;
if (dump_file && (dump_flags & TDF_DETAILS))
{
fprintf (dump_file, " (varying_loop = %d\n", var);
fprintf (dump_file, ")\n (chrec = ");
print_generic_expr (dump_file, chrec, 0);
fprintf (dump_file, ")\n (x = ");
print_generic_expr (dump_file, x, 0);
fprintf (dump_file, ")\n (res = ");
print_generic_expr (dump_file, res, 0);
fprintf (dump_file, "))\n");
}
return res;
}
tree
chrec_fold_multiply (tree type,
tree op0,
tree op1)
{
if (automatically_generated_chrec_p (op0)
|| automatically_generated_chrec_p (op1))
return chrec_fold_automatically_generated_operands (op0, op1);
switch (TREE_CODE (op0))
{
case POLYNOMIAL_CHREC:
switch (TREE_CODE (op1))
{
case POLYNOMIAL_CHREC:
return chrec_fold_multiply_poly_poly (type, op0, op1);
default:
if (integer_onep (op1))
return op0;
if (integer_zerop (op1))
return build_int_cst (type, 0);
return build_polynomial_chrec
(CHREC_VARIABLE (op0),
chrec_fold_multiply (type, CHREC_LEFT (op0), op1),
chrec_fold_multiply (type, CHREC_RIGHT (op0), op1));
}
default:
if (integer_onep (op0))
return op1;
if (integer_zerop (op0))
return build_int_cst (type, 0);
switch (TREE_CODE (op1))
{
case POLYNOMIAL_CHREC:
return build_polynomial_chrec
(CHREC_VARIABLE (op1),
chrec_fold_multiply (type, CHREC_LEFT (op1), op0),
chrec_fold_multiply (type, CHREC_RIGHT (op1), op0));
default:
if (integer_onep (op1))
return op0;
if (integer_zerop (op1))
return build_int_cst (type, 0);
return fold_build2 (MULT_EXPR, type, op0, op1);
}
}
}
static inline tree
chrec_fold_multiply_poly_poly (tree type,
tree poly0,
tree poly1)
{
tree t0, t1, t2;
int var;
struct loop *loop0 = get_chrec_loop (poly0);
struct loop *loop1 = get_chrec_loop (poly1);
gcc_assert (poly0);
gcc_assert (poly1);
gcc_assert (TREE_CODE (poly0) == POLYNOMIAL_CHREC);
gcc_assert (TREE_CODE (poly1) == POLYNOMIAL_CHREC);
gcc_assert (chrec_type (poly0) == chrec_type (poly1));
gcc_assert (type == chrec_type (poly0));
/* {a, +, b}_1 * {c, +, d}_2 -> {c*{a, +, b}_1, +, d}_2,
{a, +, b}_2 * {c, +, d}_1 -> {a*{c, +, d}_1, +, b}_2,
{a, +, b}_x * {c, +, d}_x -> {a*c, +, a*d + b*c + b*d, +, 2*b*d}_x. */
if (flow_loop_nested_p (loop0, loop1))
/* poly0 is a constant wrt. poly1. */
return build_polynomial_chrec
(CHREC_VARIABLE (poly1),
chrec_fold_multiply (type, CHREC_LEFT (poly1), poly0),
CHREC_RIGHT (poly1));
if (flow_loop_nested_p (loop1, loop0))
/* poly1 is a constant wrt. poly0. */
return build_polynomial_chrec
(CHREC_VARIABLE (poly0),
chrec_fold_multiply (type, CHREC_LEFT (poly0), poly1),
CHREC_RIGHT (poly0));
gcc_assert (loop0 == loop1);
/* poly0 and poly1 are two polynomials in the same variable,
{a, +, b}_x * {c, +, d}_x -> {a*c, +, a*d + b*c + b*d, +, 2*b*d}_x. */
/* "a*c". */
t0 = chrec_fold_multiply (type, CHREC_LEFT (poly0), CHREC_LEFT (poly1));
/* "a*d + b*c + b*d". */
t1 = chrec_fold_multiply (type, CHREC_LEFT (poly0), CHREC_RIGHT (poly1));
t1 = chrec_fold_plus (type, t1, chrec_fold_multiply (type,
CHREC_RIGHT (poly0),
CHREC_LEFT (poly1)));
t1 = chrec_fold_plus (type, t1, chrec_fold_multiply (type,
CHREC_RIGHT (poly0),
CHREC_RIGHT (poly1)));
/* "2*b*d". */
t2 = chrec_fold_multiply (type, CHREC_RIGHT (poly0), CHREC_RIGHT (poly1));
t2 = chrec_fold_multiply (type, SCALAR_FLOAT_TYPE_P (type)
? build_real (type, dconst2)
: build_int_cst (type, 2), t2);
var = CHREC_VARIABLE (poly0);
return build_polynomial_chrec (var, t0,
build_polynomial_chrec (var, t1, t2));
}
static inline tree
chrec_fold_multiply_poly_poly (tree type,
tree poly0,
tree poly1)
{
/* APPLE LOCAL begin 4233898 */
tree t0, t1, t2;
int var;
/* APPLE LOCAL end 4233898 */
gcc_assert (poly0);
gcc_assert (poly1);
gcc_assert (TREE_CODE (poly0) == POLYNOMIAL_CHREC);
gcc_assert (TREE_CODE (poly1) == POLYNOMIAL_CHREC);
/* {a, +, b}_1 * {c, +, d}_2 -> {c*{a, +, b}_1, +, d}_2,
{a, +, b}_2 * {c, +, d}_1 -> {a*{c, +, d}_1, +, b}_2,
{a, +, b}_x * {c, +, d}_x -> {a*c, +, a*d + b*c + b*d, +, 2*b*d}_x. */
if (CHREC_VARIABLE (poly0) < CHREC_VARIABLE (poly1))
/* poly0 is a constant wrt. poly1. */
return build_polynomial_chrec
(CHREC_VARIABLE (poly1),
chrec_fold_multiply (type, CHREC_LEFT (poly1), poly0),
CHREC_RIGHT (poly1));
if (CHREC_VARIABLE (poly1) < CHREC_VARIABLE (poly0))
/* poly1 is a constant wrt. poly0. */
return build_polynomial_chrec
(CHREC_VARIABLE (poly0),
chrec_fold_multiply (type, CHREC_LEFT (poly0), poly1),
CHREC_RIGHT (poly0));
/* poly0 and poly1 are two polynomials in the same variable,
{a, +, b}_x * {c, +, d}_x -> {a*c, +, a*d + b*c + b*d, +, 2*b*d}_x. */
/* APPLE LOCAL begin 4233898 */
/* "a*c". */
t0 = chrec_fold_multiply (type, CHREC_LEFT (poly0), CHREC_LEFT (poly1));
/* "a*d + b*c + b*d". */
t1 = chrec_fold_multiply (type, CHREC_LEFT (poly0), CHREC_RIGHT (poly1));
t1 = chrec_fold_plus (type, t1, chrec_fold_multiply (type,
CHREC_RIGHT (poly0),
CHREC_LEFT (poly1)));
t1 = chrec_fold_plus (type, t1, chrec_fold_multiply (type,
CHREC_RIGHT (poly0),
CHREC_RIGHT (poly1)));
/* "2*b*d". */
t2 = chrec_fold_multiply (type, CHREC_RIGHT (poly0), CHREC_RIGHT (poly1));
t2 = chrec_fold_multiply (type, build_int_cst_type (type, 2), t2);
var = CHREC_VARIABLE (poly0);
return build_polynomial_chrec (var, t0,
build_polynomial_chrec (var, t1, t2));
/* APPLE LOCAL end 4233898 */
}
static inline tree
chrec_fold_plus_poly_poly (enum tree_code code,
tree type,
tree poly0,
tree poly1)
{
tree left, right;
struct loop *loop0 = get_chrec_loop (poly0);
struct loop *loop1 = get_chrec_loop (poly1);
tree rtype = code == POINTER_PLUS_EXPR ? chrec_type (poly1) : type;
gcc_assert (poly0);
gcc_assert (poly1);
gcc_assert (TREE_CODE (poly0) == POLYNOMIAL_CHREC);
gcc_assert (TREE_CODE (poly1) == POLYNOMIAL_CHREC);
if (POINTER_TYPE_P (chrec_type (poly0)))
gcc_checking_assert (ptrofftype_p (chrec_type (poly1))
&& useless_type_conversion_p (type, chrec_type (poly0)));
else
gcc_checking_assert (useless_type_conversion_p (type, chrec_type (poly0))
&& useless_type_conversion_p (type, chrec_type (poly1)));
/*
{a, +, b}_1 + {c, +, d}_2 -> {{a, +, b}_1 + c, +, d}_2,
{a, +, b}_2 + {c, +, d}_1 -> {{c, +, d}_1 + a, +, b}_2,
{a, +, b}_x + {c, +, d}_x -> {a+c, +, b+d}_x. */
if (flow_loop_nested_p (loop0, loop1))
{
if (code == PLUS_EXPR || code == POINTER_PLUS_EXPR)
return build_polynomial_chrec
(CHREC_VARIABLE (poly1),
chrec_fold_plus (type, poly0, CHREC_LEFT (poly1)),
CHREC_RIGHT (poly1));
else
return build_polynomial_chrec
(CHREC_VARIABLE (poly1),
chrec_fold_minus (type, poly0, CHREC_LEFT (poly1)),
chrec_fold_multiply (type, CHREC_RIGHT (poly1),
SCALAR_FLOAT_TYPE_P (type)
? build_real (type, dconstm1)
: build_int_cst_type (type, -1)));
}
if (flow_loop_nested_p (loop1, loop0))
{
if (code == PLUS_EXPR || code == POINTER_PLUS_EXPR)
return build_polynomial_chrec
(CHREC_VARIABLE (poly0),
chrec_fold_plus (type, CHREC_LEFT (poly0), poly1),
CHREC_RIGHT (poly0));
else
return build_polynomial_chrec
(CHREC_VARIABLE (poly0),
chrec_fold_minus (type, CHREC_LEFT (poly0), poly1),
CHREC_RIGHT (poly0));
}
/* This function should never be called for chrecs of loops that
do not belong to the same loop nest. */
gcc_assert (loop0 == loop1);
if (code == PLUS_EXPR || code == POINTER_PLUS_EXPR)
{
left = chrec_fold_plus
(type, CHREC_LEFT (poly0), CHREC_LEFT (poly1));
right = chrec_fold_plus
(rtype, CHREC_RIGHT (poly0), CHREC_RIGHT (poly1));
}
else
{
left = chrec_fold_minus
(type, CHREC_LEFT (poly0), CHREC_LEFT (poly1));
right = chrec_fold_minus
(type, CHREC_RIGHT (poly0), CHREC_RIGHT (poly1));
}
if (chrec_zerop (right))
return left;
else
return build_polynomial_chrec
(CHREC_VARIABLE (poly0), left, right);
}
tree
chrec_apply (unsigned var,
tree chrec,
tree x)
{
tree type = chrec_type (chrec);
tree res = chrec_dont_know;
if (automatically_generated_chrec_p (chrec)
|| automatically_generated_chrec_p (x)
/* When the symbols are defined in an outer loop, it is possible
to symbolically compute the apply, since the symbols are
constants with respect to the varying loop. */
|| chrec_contains_symbols_defined_in_loop (chrec, var))
return chrec_dont_know;
if (dump_file && (dump_flags & TDF_SCEV))
fprintf (dump_file, "(chrec_apply \n");
if (TREE_CODE (x) == INTEGER_CST && SCALAR_FLOAT_TYPE_P (type))
x = build_real_from_int_cst (type, x);
switch (TREE_CODE (chrec))
{
case POLYNOMIAL_CHREC:
if (evolution_function_is_affine_p (chrec))
{
if (CHREC_VARIABLE (chrec) != var)
return build_polynomial_chrec
(CHREC_VARIABLE (chrec),
chrec_apply (var, CHREC_LEFT (chrec), x),
chrec_apply (var, CHREC_RIGHT (chrec), x));
/* "{a, +, b} (x)" -> "a + b*x". */
x = chrec_convert_rhs (type, x, NULL);
res = chrec_fold_multiply (TREE_TYPE (x), CHREC_RIGHT (chrec), x);
res = chrec_fold_plus (type, CHREC_LEFT (chrec), res);
}
else if (TREE_CODE (x) == INTEGER_CST
&& tree_int_cst_sgn (x) == 1)
/* testsuite/.../ssa-chrec-38.c. */
res = chrec_evaluate (var, chrec, x, 0);
else
res = chrec_dont_know;
break;
CASE_CONVERT:
res = chrec_convert (TREE_TYPE (chrec),
chrec_apply (var, TREE_OPERAND (chrec, 0), x),
NULL);
break;
default:
res = chrec;
break;
}
if (dump_file && (dump_flags & TDF_SCEV))
{
fprintf (dump_file, " (varying_loop = %d\n", var);
fprintf (dump_file, ")\n (chrec = ");
print_generic_expr (dump_file, chrec, 0);
fprintf (dump_file, ")\n (x = ");
print_generic_expr (dump_file, x, 0);
fprintf (dump_file, ")\n (res = ");
print_generic_expr (dump_file, res, 0);
fprintf (dump_file, "))\n");
}
return res;
}
tree
chrec_fold_multiply (tree type,
tree op0,
tree op1)
{
if (automatically_generated_chrec_p (op0)
|| automatically_generated_chrec_p (op1))
return chrec_fold_automatically_generated_operands (op0, op1);
switch (TREE_CODE (op0))
{
case POLYNOMIAL_CHREC:
gcc_checking_assert
(!chrec_contains_symbols_defined_in_loop (op0, CHREC_VARIABLE (op0)));
switch (TREE_CODE (op1))
{
case POLYNOMIAL_CHREC:
gcc_checking_assert
(!chrec_contains_symbols_defined_in_loop (op1,
CHREC_VARIABLE (op1)));
return chrec_fold_multiply_poly_poly (type, op0, op1);
CASE_CONVERT:
if (tree_contains_chrecs (op1, NULL))
return chrec_dont_know;
default:
if (integer_onep (op1))
return op0;
if (integer_zerop (op1))
return build_int_cst (type, 0);
return build_polynomial_chrec
(CHREC_VARIABLE (op0),
chrec_fold_multiply (type, CHREC_LEFT (op0), op1),
chrec_fold_multiply (type, CHREC_RIGHT (op0), op1));
}
CASE_CONVERT:
if (tree_contains_chrecs (op0, NULL))
return chrec_dont_know;
default:
if (integer_onep (op0))
return op1;
if (integer_zerop (op0))
return build_int_cst (type, 0);
switch (TREE_CODE (op1))
{
case POLYNOMIAL_CHREC:
gcc_checking_assert
(!chrec_contains_symbols_defined_in_loop (op1,
CHREC_VARIABLE (op1)));
return build_polynomial_chrec
(CHREC_VARIABLE (op1),
chrec_fold_multiply (type, CHREC_LEFT (op1), op0),
chrec_fold_multiply (type, CHREC_RIGHT (op1), op0));
CASE_CONVERT:
if (tree_contains_chrecs (op1, NULL))
return chrec_dont_know;
default:
if (integer_onep (op1))
return op0;
if (integer_zerop (op1))
return build_int_cst (type, 0);
return fold_build2 (MULT_EXPR, type, op0, op1);
}
}
}
static tree
chrec_fold_plus_1 (enum tree_code code, tree type,
tree op0, tree op1)
{
if (automatically_generated_chrec_p (op0)
|| automatically_generated_chrec_p (op1))
return chrec_fold_automatically_generated_operands (op0, op1);
switch (TREE_CODE (op0))
{
case POLYNOMIAL_CHREC:
gcc_checking_assert
(!chrec_contains_symbols_defined_in_loop (op0, CHREC_VARIABLE (op0)));
switch (TREE_CODE (op1))
{
case POLYNOMIAL_CHREC:
gcc_checking_assert
(!chrec_contains_symbols_defined_in_loop (op1,
CHREC_VARIABLE (op1)));
return chrec_fold_plus_poly_poly (code, type, op0, op1);
CASE_CONVERT:
if (tree_contains_chrecs (op1, NULL))
return chrec_dont_know;
default:
if (code == PLUS_EXPR || code == POINTER_PLUS_EXPR)
return build_polynomial_chrec
(CHREC_VARIABLE (op0),
chrec_fold_plus (type, CHREC_LEFT (op0), op1),
CHREC_RIGHT (op0));
else
return build_polynomial_chrec
(CHREC_VARIABLE (op0),
chrec_fold_minus (type, CHREC_LEFT (op0), op1),
CHREC_RIGHT (op0));
}
CASE_CONVERT:
if (tree_contains_chrecs (op0, NULL))
return chrec_dont_know;
default:
switch (TREE_CODE (op1))
{
case POLYNOMIAL_CHREC:
gcc_checking_assert
(!chrec_contains_symbols_defined_in_loop (op1,
CHREC_VARIABLE (op1)));
if (code == PLUS_EXPR || code == POINTER_PLUS_EXPR)
return build_polynomial_chrec
(CHREC_VARIABLE (op1),
chrec_fold_plus (type, op0, CHREC_LEFT (op1)),
CHREC_RIGHT (op1));
else
return build_polynomial_chrec
(CHREC_VARIABLE (op1),
chrec_fold_minus (type, op0, CHREC_LEFT (op1)),
chrec_fold_multiply (type, CHREC_RIGHT (op1),
SCALAR_FLOAT_TYPE_P (type)
? build_real (type, dconstm1)
: build_int_cst_type (type, -1)));
CASE_CONVERT:
if (tree_contains_chrecs (op1, NULL))
return chrec_dont_know;
default:
{
int size = 0;
if ((tree_contains_chrecs (op0, &size)
|| tree_contains_chrecs (op1, &size))
&& size < PARAM_VALUE (PARAM_SCEV_MAX_EXPR_SIZE))
return build2 (code, type, op0, op1);
else if (size < PARAM_VALUE (PARAM_SCEV_MAX_EXPR_SIZE))
{
if (code == POINTER_PLUS_EXPR)
return fold_build_pointer_plus (fold_convert (type, op0),
op1);
else
return fold_build2 (code, type,
fold_convert (type, op0),
fold_convert (type, op1));
}
else
return chrec_dont_know;
}
}
}
}
static inline tree
chrec_fold_plus_poly_poly (enum tree_code code,
tree type,
tree poly0,
tree poly1)
{
tree left, right;
gcc_assert (poly0);
gcc_assert (poly1);
gcc_assert (TREE_CODE (poly0) == POLYNOMIAL_CHREC);
gcc_assert (TREE_CODE (poly1) == POLYNOMIAL_CHREC);
gcc_assert (chrec_type (poly0) == chrec_type (poly1));
gcc_assert (type == chrec_type (poly0));
/*
{a, +, b}_1 + {c, +, d}_2 -> {{a, +, b}_1 + c, +, d}_2,
{a, +, b}_2 + {c, +, d}_1 -> {{c, +, d}_1 + a, +, b}_2,
{a, +, b}_x + {c, +, d}_x -> {a+c, +, b+d}_x. */
if (CHREC_VARIABLE (poly0) < CHREC_VARIABLE (poly1))
{
if (code == PLUS_EXPR)
return build_polynomial_chrec
(CHREC_VARIABLE (poly1),
chrec_fold_plus (type, poly0, CHREC_LEFT (poly1)),
CHREC_RIGHT (poly1));
else
return build_polynomial_chrec
(CHREC_VARIABLE (poly1),
chrec_fold_minus (type, poly0, CHREC_LEFT (poly1)),
chrec_fold_multiply (type, CHREC_RIGHT (poly1),
SCALAR_FLOAT_TYPE_P (type)
? build_real (type, dconstm1)
: build_int_cst_type (type, -1)));
}
if (CHREC_VARIABLE (poly0) > CHREC_VARIABLE (poly1))
{
if (code == PLUS_EXPR)
return build_polynomial_chrec
(CHREC_VARIABLE (poly0),
chrec_fold_plus (type, CHREC_LEFT (poly0), poly1),
CHREC_RIGHT (poly0));
else
return build_polynomial_chrec
(CHREC_VARIABLE (poly0),
chrec_fold_minus (type, CHREC_LEFT (poly0), poly1),
CHREC_RIGHT (poly0));
}
if (code == PLUS_EXPR)
{
left = chrec_fold_plus
(type, CHREC_LEFT (poly0), CHREC_LEFT (poly1));
right = chrec_fold_plus
(type, CHREC_RIGHT (poly0), CHREC_RIGHT (poly1));
}
else
{
left = chrec_fold_minus
(type, CHREC_LEFT (poly0), CHREC_LEFT (poly1));
right = chrec_fold_minus
(type, CHREC_RIGHT (poly0), CHREC_RIGHT (poly1));
}
if (chrec_zerop (right))
return left;
else
return build_polynomial_chrec
(CHREC_VARIABLE (poly0), left, right);
}
static tree
chrec_fold_plus_1 (enum tree_code code,
tree type,
tree op0,
tree op1)
{
if (automatically_generated_chrec_p (op0)
|| automatically_generated_chrec_p (op1))
return chrec_fold_automatically_generated_operands (op0, op1);
switch (TREE_CODE (op0))
{
case POLYNOMIAL_CHREC:
switch (TREE_CODE (op1))
{
case POLYNOMIAL_CHREC:
return chrec_fold_plus_poly_poly (code, type, op0, op1);
default:
if (code == PLUS_EXPR)
return build_polynomial_chrec
(CHREC_VARIABLE (op0),
chrec_fold_plus (type, CHREC_LEFT (op0), op1),
CHREC_RIGHT (op0));
else
return build_polynomial_chrec
(CHREC_VARIABLE (op0),
chrec_fold_minus (type, CHREC_LEFT (op0), op1),
CHREC_RIGHT (op0));
}
default:
switch (TREE_CODE (op1))
{
case POLYNOMIAL_CHREC:
if (code == PLUS_EXPR)
return build_polynomial_chrec
(CHREC_VARIABLE (op1),
chrec_fold_plus (type, op0, CHREC_LEFT (op1)),
CHREC_RIGHT (op1));
else
return build_polynomial_chrec
(CHREC_VARIABLE (op1),
chrec_fold_minus (type, op0, CHREC_LEFT (op1)),
chrec_fold_multiply (type, CHREC_RIGHT (op1),
build_int_cst_type (type, -1)));
default:
{
int size = 0;
if ((tree_contains_chrecs (op0, &size)
|| tree_contains_chrecs (op1, &size))
&& size < PARAM_VALUE (PARAM_SCEV_MAX_EXPR_SIZE))
return build2 (code, type, op0, op1);
else if (size < PARAM_VALUE (PARAM_SCEV_MAX_EXPR_SIZE))
return fold (build2 (code, type, op0, op1));
else
return chrec_dont_know;
}
}
}
}
