[Bug c/89341] [7/8/9 Regression] ICE in get, at cgraph.h:1332

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89341

--- Comment #5 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Both decls of "foo" are using the same FUNCTION_DECL.

node->alias is set in varasm.c: assemble_alias here:

5991        cgraph_node::get_create (decl)->alias = true;

when processing the second decl of "foo" here:

 void foo ();

since the FUNCTION_DECL for "foo" has an "alias" attribute, given to it by
handle_weakref_attribute when parsing the first decl of here:

__attribute__((weakref("bar")))
static void foo () { }