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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ipa/65610] [5 Regression] Compare debug failure with -g3 -fsanitize=undefined -fno-sanitize=vptr -O3
Date: Tue, 31 Mar 2015 02:11:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65610

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Mar 30 21:56:02 2015
New Revision: 221781

URL: https://gcc.gnu.org/viewcvs?rev=221781&root=gcc&view=rev
Log:
    PR ipa/65610
    * ipa-utils.h (inlined_polymorphic_ctor_dtor_block_p): Declare.
    * ipa-polymorphic-call.c (inlined_polymorphic_ctor_dtor_block_p): New
    function.
    (decl_maybe_in_construction_p, noncall_stmt_may_be_vtbl_ptr_store):
    Use it.
    * ipa-prop.c (param_type_may_change_p): Likewise.
    * tree-ssa-live.c: Include ipa-utils.h and its dependencies.
    (remove_unused_scope_block_p): Add in_ctor_dtor_block
    argument.  Before inlining, preserve
    inlined_polymorphic_ctor_dtor_block_p blocks and the outermost block
    with FUNCTION_DECL BLOCK_ABSTRACT_ORIGIN inside of them.  Adjust
    recursive calls.
    (remove_unused_locals): Adjust remove_unused_scope_block_p caller.

    * g++.dg/ubsan/pr65610.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/ubsan/pr65610.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-polymorphic-call.c
    trunk/gcc/ipa-prop.c
    trunk/gcc/ipa-utils.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-live.c