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Fold arithmetic integer expressions fallout

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* ldexp.c (MAX): Define.
	(exp_unop, exp_binop, exp_trinop): Alloc at least enough for
	etree_type.value.
This commit is contained in:
Alan Modra 2016-10-07 22:54:45 +10:30
parent 362c0c4d9c
commit 769553e65f
2 changed files with 14 additions and 6 deletions
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6
ld/ChangeLog
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@ -1,3 +1,9 @@
2016-10-07 Alan Modra <amodra@gmail.com>
* ldexp.c (MAX): Define.
(exp_unop, exp_binop, exp_trinop): Alloc at least enough for
etree_type.value.
2016-10-07 Alan Modra <amodra@gmail.com>
* testsuite/lib/ld-lib.exp (is_generic_elf): New, extracted from..

14
ld/ldexp.c
View file

@ -1273,11 +1273,13 @@ exp_value_fold (etree_type *tree)
}
}
#define MAX(a, b) ((a) > (b) ? (a) : (b))
etree_type *
exp_binop (int code, etree_type *lhs, etree_type *rhs)
{
etree_type *new_e = (etree_type *) stat_alloc (sizeof (new_e->binary));
etree_type *new_e = (etree_type *) stat_alloc (MAX (sizeof (new_e->binary),
sizeof (new_e->value)));
new_e->type.node_code = code;
new_e->type.filename = lhs->type.filename;
new_e->type.lineno = lhs->type.lineno;
@ -1296,8 +1298,8 @@ exp_binop (int code, etree_type *lhs, etree_type *rhs)
etree_type *
exp_trinop (int code, etree_type *cond, etree_type *lhs, etree_type *rhs)
{
etree_type *new_e = (etree_type *) stat_alloc (sizeof (new_e->trinary));
etree_type *new_e = (etree_type *) stat_alloc (MAX (sizeof (new_e->trinary),
sizeof (new_e->value)));
new_e->type.node_code = code;
new_e->type.filename = cond->type.filename;
new_e->type.lineno = cond->type.lineno;
@ -1315,8 +1317,8 @@ exp_trinop (int code, etree_type *cond, etree_type *lhs, etree_type *rhs)
etree_type *
exp_unop (int code, etree_type *child)
{
etree_type *new_e = (etree_type *) stat_alloc (sizeof (new_e->unary));
etree_type *new_e = (etree_type *) stat_alloc (MAX (sizeof (new_e->unary),
sizeof (new_e->value)));
new_e->unary.type.node_code = code;
new_e->unary.type.filename = child->type.filename;
new_e->unary.type.lineno = child->type.lineno;