[Bug lto/44966] weak aliases LTO with gold causes ICE in lto_symtab_merge_decls_1

[hubicka at gcc dot gnu dot org]

------- Comment #3 from hubicka at gcc dot gnu dot org  2010-07-19 17:52 -------
Created an attachment (id=21251)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21251&action=view)
fix

Hi,
the problem is that alias is defined in one module, but aliases don't get
cgraph nodes unless they are used.  It is used in other modules and while
merging we clash.

It seems OK to just create new node in this case though it is bit ugly (at
least ENABLE_CHECKING should verify that decl is indeed alias) or perhaps we
can always create node.  I will look into it more, but this patch at least
solves ICE on the testcase.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44966