[Bug c/65287] New: Current trunk ICE in address_matters_p, at symtab.c:1908

[Bug c/65287] New: Current trunk ICE in address_matters_p, at symtab.c:1908

[ppluzhnikov at google dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65287

            Bug ID: 65287
           Summary: Current trunk ICE in address_matters_p, at
                    symtab.c:1908
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ppluzhnikov at google dot com

Created attachment 34927
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34927&action=edit
test case

Continued from PR 65263

r221040 is also possibly causing:

  ../sysdeps/gnu/siglist.c:77:1: internal compiler error: in address_matters_p,
at symtab.c:1908

when building trunk GLIBC (seen with GCC @r221125; same source builds with GCC
@r220312).

../sysdeps/gnu/siglist.c:77:1: internal compiler error: in address_matters_p,
at symtab.c:1908
 versioned_symbol (libc, __new_sys_sigabbrev, sys_sigabbrev, GLIBC_2_1);
 ^
0x747118 symtab_node::address_matters_p()
    ../../gcc/symtab.c:1908
0x10e1dcb ipa_icf::sem_variable::merge(ipa_icf::sem_item*)
    ../../gcc/ipa-icf.c:1723
0x10e4b21 ipa_icf::sem_item_optimizer::merge_classes(unsigned int)
    ../../gcc/ipa-icf.c:2955
0x10ed8c4 ipa_icf::sem_item_optimizer::execute()
    ../../gcc/ipa-icf.c:2217
0x10ef521 ipa_icf_driver
    ../../gcc/ipa-icf.c:3034
0x10ef521 ipa_icf::pass_ipa_icf::execute(function*)
    ../../gcc/ipa-icf.c:3081
Please submit a full bug report,

Reproduces with:
gcc-svn-r221125/bin/gcc -c -O2 /tmp/t.i

[Bug c/65287] Current trunk ICE in address_matters_p, at symtab.c:1908

[ppluzhnikov at google dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65287

--- Comment #1 from Paul Pluzhnikov <ppluzhnikov at google dot com> ---
Created attachment 34928
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34928&action=edit
c-reduce'd test case

A much shorter test:

const int __new_sys_siglist[] = {};

extern __typeof(__new_sys_siglist) _new_sys_siglist
    __attribute__((alias("__new_sys_siglist")));
extern __typeof(__new_sys_siglist) _sys_siglist
    __attribute__((alias("__new_sys_siglist")));

[Bug c/65287] Current trunk ICE in address_matters_p, at symtab.c:1908

[amodra at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65287

Alan Modra <amodra at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-03-03
                 CC|                            |amodra at gmail dot com
     Ever confirmed|0                           |1

--- Comment #2 from Alan Modra <amodra at gmail dot com> ---
Confirmed on both x86_64 and powerpc64-linux.

[Bug c/65287] Current trunk ICE in address_matters_p, at symtab.c:1908

[vekumar at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65287

vekumar at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |vekumar at gcc dot gnu.org

--- Comment #3 from vekumar at gcc dot gnu.org ---
Also faced this bug when I tired to cross compile for aarch64-none-linux-gnu

[Bug c/65287] Current trunk ICE in address_matters_p, at symtab.c:1908

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65287

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mpolacek at gcc dot gnu.org

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
The testcase in Comment 1 started ICEing with r221099.

[Bug ipa/65287] [5 Regression] Current trunk ICE in address_matters_p, at symtab.c:1908

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65287

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
            Version|unknown                     |5.0
   Target Milestone|---                         |5.0
            Summary|Current trunk ICE in        |[5 Regression] Current
                   |address_matters_p, at       |trunk ICE in
                   |symtab.c:1908               |address_matters_p, at
                   |                            |symtab.c:1908

[Bug ipa/65287] [5 Regression] Current trunk ICE in address_matters_p, at symtab.c:1908

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65287

--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
Created attachment 34935
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34935&action=edit
Suggested patch

Following patch skips all alias variables. This condition was part of my
initial version of patch:

https://gcc.gnu.org/ml/gcc-patches/2015-02/msg01753.html

I hope, as Honza rework the patch, this condition should be placed there.
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Subject: [Bug target/65288] [5 Regression] ICE (in address_matters_p, at symtab.c:1908) on powerpc64le-linux-gnu
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ide288

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |5.0

[Bug ipa/65287] [5 Regression] Current trunk ICE in address_matters_p, at symtab.c:1908

[Alex.Velenko at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65287

Alex Velenko <Alex.Velenko at arm dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |Alex.Velenko at arm dot com

--- Comment #6 from Alex Velenko <Alex.Velenko at arm dot com> ---
I also confirm this issue for aarch64_be-none-linux-gnu,
aarch64_be-none-linux-gnu, arm-none-linux-gnueabihf and arm-none-linux-gnueabi

[Bug ipa/65287] [5 Regression] Current trunk ICE in address_matters_p, at symtab.c:1908

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65287

--- Comment #9 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Tue Mar  3 17:33:22 2015
New Revision: 221157

URL: https://gcc.gnu.org/viewcvs?rev=221157&root=gcc&view=rev
Log:

    PR ipa/65287
    * gcc.dg/ipa/pr65287.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/ipa/pr65287.c

[Bug ipa/65287] [5 Regression] Current trunk ICE in address_matters_p, at symtab.c:1908

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65287

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |hubicka at gcc dot gnu.org
         Resolution|---                         |FIXED

--- Comment #10 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Fixed.