[Bug lto/54709] [4.8 Regression] r191713 breaks Firefox build

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54709



--- Comment #12 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-27 
09:11:23 UTC ---

Author: rguenth

Date: Thu Sep 27 09:11:18 2012

New Revision: 191798



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=191798

Log:

2012-09-27  Richard Guenther  <rguent...@suse.de>



    PR lto/54709

    * lto-symtab.c (resolution_guessed_p): Remove.

    (set_resolution_guessed): Likewise.

    (lto_symtab_register_decl): Remove assert.

    (lto_symtab_resolve_symbols): Do not alter symbol resolutions

    and return the prevailing symbol, checking for multiple prevailing

    symbols here.

    (lto_symtab_merge_decls_1): Use the result from

    lto_symtab_resolve_symbols.  Do not alter symbol resolutions.



    * gcc.dg/lto/pr54709_0.c: New testcase.

    * gcc.dg/lto/pr54709_1.c: Likewise.



Added:

    trunk/gcc/testsuite/gcc.dg/lto/pr54709_0.c

    trunk/gcc/testsuite/gcc.dg/lto/pr54709_1.c

Modified:

    trunk/gcc/ChangeLog

    trunk/gcc/lto-symtab.c

    trunk/gcc/testsuite/ChangeLog