A number of the "variant" testcases fail to build on AIX and targets
that use stabs. The failure looks like:
/tmp/GCC/powerpc-ibm-aix7.2.0.0/libstdc++-v3/include/variant:956:
internal compiler error: tree check: expected field_decl, have
template_decl in int_bit_position, at tree.h:5396
which occurs in dbxout_type_fields()
/* Output the name, type, position (in bits), size (in bits) of each
field that we can support. */
for (tem = TYPE_FIELDS (type); tem; tem = DECL_CHAIN (tem))
...
if (VAR_P (tem))
{
...
}
else
{
stabstr_C (',');
stabstr_D (int_bit_position (tem));
stabstr_C (',');
stabstr_D (tree_to_uhwi (DECL_SIZE (tem)));
stabstr_C (';');
}
where tem is a TEMPLATE_DECL. The dbxout code currently skips
TYPE_DECL, nameless fields, and CONST_DECL.
dbxout_type_methods() explicitly skips TEMPLATE_DECLs with the comment
"The debugger doesn't know what to do with such entities anyhow", so
this proposed patch skips them in dbxout_type_fields() as well.
Okay?
Thanks, David
PR debug/66419
PR c++/78235
* dbxout.c (dbxout_type_fields): Skip TEMPLATE_DECLs.
Index: dbxout.c
===================================================================
--- dbxout.c (revision 243118)
+++ dbxout.c (working copy)
@@ -1479,6 +1479,7 @@ dbxout_type_fields (tree type)
/* Omit here local type decls until we know how to support them. */
if (TREE_CODE (tem) == TYPE_DECL
+ || TREE_CODE (tem) == TEMPLATE_DECL
/* Omit here the nameless fields that are used to skip bits. */
|| DECL_IGNORED_P (tem)
/* Omit fields whose position or size are variable or too large to
