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(finish_enum): Handle VALUES being an ERROR_MARK. 

From-SVN: r7303
This commit is contained in:
Richard Kenner 1994-05-16 08:25:28 -04:00
parent 005a35b93f
commit 59116212bf
1 changed files with 35 additions and 29 deletions
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64
gcc/c-decl.c
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@ -5642,19 +5642,22 @@ finish_enum (enumtype, values)
/* Calculate the maximum value of any enumerator in this type. */
for (pair = values; pair; pair = TREE_CHAIN (pair))
{
tree value = TREE_VALUE (pair);
if (pair == values)
minnode = maxnode = TREE_VALUE (pair);
else
{
if (tree_int_cst_lt (maxnode, value))
maxnode = value;
if (tree_int_cst_lt (value, minnode))
minnode = value;
}
}
if (values == error_mark_node)
minnode = maxnode = integer_zero_node;
else
for (pair = values; pair; pair = TREE_CHAIN (pair))
{
tree value = TREE_VALUE (pair);
if (pair == values)
minnode = maxnode = TREE_VALUE (pair);
else
{
if (tree_int_cst_lt (maxnode, value))
maxnode = value;
if (tree_int_cst_lt (value, minnode))
minnode = value;
}
}
TYPE_MIN_VALUE (enumtype) = minnode;
TYPE_MAX_VALUE (enumtype) = maxnode;
@ -5700,25 +5703,28 @@ finish_enum (enumtype, values)
/* An enum can have some negative values; then it is signed. */
TREE_UNSIGNED (enumtype) = tree_int_cst_sgn (minnode) >= 0;
/* Change the type of the enumerators to be the enum type.
Formerly this was done only for enums that fit in an int,
but the comment said it was done only for enums wider than int.
It seems necessary to do this for wide enums,
and best not to change what's done for ordinary narrower ones. */
for (pair = values; pair; pair = TREE_CHAIN (pair))
if (values != error_mark_node)
{
TREE_TYPE (TREE_PURPOSE (pair)) = enumtype;
DECL_SIZE (TREE_PURPOSE (pair)) = TYPE_SIZE (enumtype);
if (TREE_CODE (TREE_PURPOSE (pair)) != FUNCTION_DECL)
DECL_ALIGN (TREE_PURPOSE (pair)) = TYPE_ALIGN (enumtype);
/* Change the type of the enumerators to be the enum type.
Formerly this was done only for enums that fit in an int,
but the comment said it was done only for enums wider than int.
It seems necessary to do this for wide enums,
and best not to change what's done for ordinary narrower ones. */
for (pair = values; pair; pair = TREE_CHAIN (pair))
{
TREE_TYPE (TREE_PURPOSE (pair)) = enumtype;
DECL_SIZE (TREE_PURPOSE (pair)) = TYPE_SIZE (enumtype);
if (TREE_CODE (TREE_PURPOSE (pair)) != FUNCTION_DECL)
DECL_ALIGN (TREE_PURPOSE (pair)) = TYPE_ALIGN (enumtype);
}
/* Replace the decl nodes in VALUES with their names. */
for (pair = values; pair; pair = TREE_CHAIN (pair))
TREE_PURPOSE (pair) = DECL_NAME (TREE_PURPOSE (pair));
TYPE_VALUES (enumtype) = values;
}
/* Replace the decl nodes in VALUES with their names. */
for (pair = values; pair; pair = TREE_CHAIN (pair))
TREE_PURPOSE (pair) = DECL_NAME (TREE_PURPOSE (pair));
TYPE_VALUES (enumtype) = values;
/* Fix up all variant types of this enum type. */
for (tem = TYPE_MAIN_VARIANT (enumtype); tem; tem = TYPE_NEXT_VARIANT (tem))
{