[Bug ipa/68035] [5/6 Regression] ipa performance issue when no procedures are present

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68035

--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Thu Nov 12 15:16:00 2015
New Revision: 230263

URL: https://gcc.gnu.org/viewcvs?rev=230263&root=gcc&view=rev
Log:
Fix PR ipa/68035

        PR ipa/68035
        * ipa-icf.c (void sem_item::set_hash): New function.
        (sem_function::get_hash): Use renamed m_hash member variable.
        (sem_item::update_hash_by_addr_refs): Utilize get_hash.
        (sem_item::update_hash_by_local_refs): Likewise.
        (sem_variable::get_hash): Use renamed m_hash member variable.
        (sem_item_optimizer::update_hash_by_addr_refs): Utilize get_hash.
        (sem_item_optimizer::build_hash_based_classes): Utilize set_hash.
        (sem_item_optimizer::build_graph): As the hash value of an item
        is lazy initialized, force the calculation.
        * ipa-icf.h (set_hash): Declare new function and rename hash member
        variable to m_hash.
        * gcc.dg/ipa/pr68035.c: New test.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-icf.c
    trunk/gcc/ipa-icf.h
    trunk/gcc/testsuite/ChangeLog