[Bug lto/45949] ICE: SIGSEGV in gimple_default_def (tree-dfa.c:538) with -flto/-fwhopr on invalid code

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45949

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2010.10.09 12:24:32
     Ever Confirmed|0                           |1

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-10-09 
12:24:32 UTC ---
The problem is we're issueing an error from decl_assembler_name called
via free_lang_data which is an IPA pass, so the guard

1768      if (!seen_error ())
1769        ipa_passes ();

in cgraph_optimize () doesn't work reliably.

Now, without LTO we're assigning the assembler name and erroring during
expansion.