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[Bug target/69634] [4.9/5 Regression] -fcompare-debug failure (length) with -O2 -fno-dce -fschedule-insns -fno-tree-vrp @ i686


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69634

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon May 23 12:51:29 2016
New Revision: 236588

URL: https://gcc.gnu.org/viewcvs?rev=236588&root=gcc&view=rev
Log:
2016-05-23  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2016-02-11  Alexandre Oliva  <aoliva@redhat.com>

        PR target/69634
        * regstat.c (regstat_bb_compute_calls_crossed): Disregard
        debug insns.

        * gcc.dg/pr69634.c: New.

        2016-03-23  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70347
        * typeck.c (process_init_constructor_union): If the initializer
        is empty, use the union's NSDMI if it has one.

        * g++.dg/cpp1y/nsdmi-union1.C: New test.

        2015-10-30  Richard Biener  <rguenther@suse.de>

        PR middle-end/68142
        * fold-const.c (extract_muldiv_1): Avoid introducing undefined
        overflow.

        * c-c++-common/ubsan/pr68142.c: New testcase.

        2016-03-24  Richard Henderson  <rth@redhat.com>

        PR middle-end/69845
        * fold-const.c (extract_muldiv_1): Correct test for multiplication
        overflow.

        * gcc.dg/tree-ssa/pr69845-1.c: New test.
        * gcc.dg/tree-ssa/pr69845-2.c: New test.

Added:
    branches/gcc-5-branch/gcc/testsuite/c-c++-common/ubsan/pr68142.c
    branches/gcc-5-branch/gcc/testsuite/g++.dg/cpp1y/nsdmi-union1.C
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/pr69634.c
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/tree-ssa/pr69845-1.c
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/tree-ssa/pr69845-2.c
Modified:
    branches/gcc-5-branch/gcc/ChangeLog
    branches/gcc-5-branch/gcc/cp/ChangeLog
    branches/gcc-5-branch/gcc/cp/typeck2.c
    branches/gcc-5-branch/gcc/fold-const.c
    branches/gcc-5-branch/gcc/regstat.c
    branches/gcc-5-branch/gcc/testsuite/ChangeLog

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