[Bug lto/78211] [7 Regression] -fcompare-debug failure with -flto -fno-use-linker-plugin

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78211

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Nov 28 10:00:43 2016
New Revision: 242910

URL: https://gcc.gnu.org/viewcvs?rev=242910&root=gcc&view=rev
Log:
        PR lto/78211
        * ipa-icf.h (sem_item_optimizer): Add m_classes_vec member.
        * ipa-icf.c (sem_item_optimizer::sem_item_optimizer): Initialize
        it.
        (sem_item_optimizer::~sem_item_optimizer): Traverse m_classes_vec
        vector instead of traversing m_classes hash table.  Release
        m_classes_vec.
        (sem_item_optimizer::read_section, sem_item_optimizer::add_class):
        Formatting fixes.
        (sem_item_optimizer::get_group_by_hash): When inserting a new group,
        add it also to m_classes_vec vector.
        (sem_item_optimizer::remove_symtab_node,
        sem_item_optimizer::build_hash_based_classes,
        sem_item_optimizer::parse_nonsingleton_classes): Formatting fixes.
        (sem_item_optimizer::subdivide_classes_by_equality,
        sem_item_optimizer::subdivide_classes_by_sensitive_refs,
        sem_item_optimizer::verify_classes): Traverse m_classes_vec vector
        instead of traversing m_classes hash table.  Formatting fixes.
        (sem_item_optimizer::traverse_congruence_split,
        sem_item_optimizer::do_congruence_step_for_index,
        sem_item_optimizer::do_congruence_step): Formatting fixes.
        (sem_item_optimizer::process_cong_reduction): Traverse m_classes_vec
        vector instead of traversing m_classes hash table.
        (sem_item_optimizer::dump_cong_classes): Likewise.  Formatting fixes.
        (sem_item_optimizer::merge_classes): Traverse m_classes_vec vector
        instead of traversing m_classes hash table.

        * g++.dg/ipa/pr78211.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/ipa/pr78211.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-icf.c
    trunk/gcc/ipa-icf.h
    trunk/gcc/testsuite/ChangeLog