[Bug ipa/61602] [5 Regression] ICE in lto1 on x86_64-linux-gnu in ipa_single_use, at ipa.c:1257

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61602

--- Comment #9 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Mon Dec 15 06:19:51 2014
New Revision: 218731

URL: https://gcc.gnu.org/viewcvs?rev=218731&root=gcc&view=rev
Log:

    PR ipa/61602
    * gcc.dg/torture/pr61602.c: New testcase.

    * cgraph.h (ipa_discover_readonly_nonaddressable_vars): Return bool.
    * ipa.c (set_writeonly_bit): Track if reference was removed.
    (ipa_discover_readonly_nonaddressable_vars): Return true if any
    references was removed.
    * ipa-reference.c (propagate): Return TODO_remove_functions if
    reference was removed.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr61602.c
Modified:
    trunk/gcc/cgraph.h
    trunk/gcc/ipa-reference.c
    trunk/gcc/ipa.c
    trunk/gcc/testsuite/ChangeLog