[Bug ipa/65439] New: [5.0 Regression] FAIL: g++.dg/ipa/ipa-icf-4.C -std=gnu++98 scan-ipa-dump icf "Equal symbols: 6"

[Bug ipa/65439] New: [5.0 Regression] FAIL: g++.dg/ipa/ipa-icf-4.C -std=gnu++98 scan-ipa-dump icf "Equal symbols: 6"

[danglin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65439

            Bug ID: 65439
           Summary: [5.0 Regression] FAIL: g++.dg/ipa/ipa-icf-4.C
                    -std=gnu++98  scan-ipa-dump icf "Equal symbols: 6"
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: danglin at gcc dot gnu.org
              Host: hppa2.0w-hp-hpux11.11
            Target: hppa2.0w-hp-hpux11.11
             Build: hppa2.0w-hp-hpux11.11

In revision 221432:

Executing on host: /test/gnu/gcc/objdir/gcc/testsuite/g++/../../xg++
-B/test/gnu
/gcc/objdir/gcc/testsuite/g++/../../
/test/gnu/gcc/gcc/gcc/testsuite/g++.dg/ipa/
ipa-icf-4.C  -fno-diagnostics-show-caret -fdiagnostics-color=never  -nostdinc++
-I/test/gnu/gcc/objdir/hppa2.0w-hp-hpux11.11/libstdc++-v3/include/hppa2.0w-hp-hp
ux11.11 -I/test/gnu/gcc/objdir/hppa2.0w-hp-hpux11.11/libstdc++-v3/include
-I/tes
t/gnu/gcc/gcc/libstdc++-v3/libsupc++
-I/test/gnu/gcc/gcc/libstdc++-v3/include/ba
ckward -I/test/gnu/gcc/gcc/libstdc++-v3/testsuite/util -fmessage-length=0 
-std=
gnu++98 -O2 -fdump-ipa-icf -fno-inline  -S   -o ipa-icf-4.s    (timeout = 300)
spawn /test/gnu/gcc/objdir/gcc/testsuite/g++/../../xg++
-B/test/gnu/gcc/objdir/g
cc/testsuite/g++/../../ /test/gnu/gcc/gcc/gcc/testsuite/g++.dg/ipa/ipa-icf-4.C
-
fno-diagnostics-show-caret -fdiagnostics-color=never -nostdinc++
-I/test/gnu/gcc
/objdir/hppa2.0w-hp-hpux11.11/libstdc++-v3/include/hppa2.0w-hp-hpux11.11
-I/test
/gnu/gcc/objdir/hppa2.0w-hp-hpux11.11/libstdc++-v3/include
-I/test/gnu/gcc/gcc/l
ibstdc++-v3/libsupc++ -I/test/gnu/gcc/gcc/libstdc++-v3/include/backward
-I/test/
gnu/gcc/gcc/libstdc++-v3/testsuite/util -fmessage-length=0 -std=gnu++98 -O2
-fdu
mp-ipa-icf -fno-inline -S -o ipa-icf-4.s
PASS: g++.dg/ipa/ipa-icf-4.C  -std=gnu++98 (test for excess errors)
PASS: g++.dg/ipa/ipa-icf-4.C  -std=gnu++98  scan-ipa-dump icf "(Unified;
Variabl
e alias has been created)|(Symbol aliases are not supported by target)"
FAIL: g++.dg/ipa/ipa-icf-4.C  -std=gnu++98  scan-ipa-dump icf "Equal symbols:
6"

Revision 221202 was okay.

[Bug ipa/65439] [5.0 Regression] FAIL: g++.dg/ipa/ipa-icf-4.C -std=gnu++98 scan-ipa-dump icf "Equal symbols: 6"

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65439

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4
                 CC|                            |jakub at gcc dot gnu.org
   Target Milestone|---                         |5.0

[Bug ipa/65439] [5.0 Regression] FAIL: g++.dg/ipa/ipa-icf-4.C -std=gnu++98 scan-ipa-dump icf "Equal symbols: 6"

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65439

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|hppa2.0w-hp-hpux11.11       |hppa2.0w-hp-hpux11.11,
                   |                            |x86_64-apple-darwin1*
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-03-16
                 CC|                            |hubicka at gcc dot gnu.org,
                   |                            |marxin at gcc dot gnu.org
               Host|hppa2.0w-hp-hpux11.11       |hppa2.0w-hp-hpux11.11,
                   |                            |x86_64-apple-darwin1*
     Ever confirmed|0                           |1
              Build|hppa2.0w-hp-hpux11.11       |hppa2.0w-hp-hpux11.11,
                   |                            |x86_64-apple-darwin1*

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Also seen on darwin
(https://gcc.gnu.org/ml/gcc-testresults/2015-03/msg01785.html) at r221412
(likely r221406): the test fails due to

Equal symbols: 7

[Bug ipa/65439] [5.0 Regression] FAIL: g++.dg/ipa/ipa-icf-4.C -std=gnu++98 scan-ipa-dump icf "Equal symbols: 6"

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65439

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|hppa2.0w-hp-hpux11.11,      |hppa2.0w-hp-hpux11.11,
                   |x86_64-apple-darwin1*       |x86_64-apple-darwin*
                 CC|                            |iains at gcc dot gnu.org
               Host|hppa2.0w-hp-hpux11.11,      |hppa2.0w-hp-hpux11.11,
                   |x86_64-apple-darwin1*       |x86_64-apple-darwin*
              Build|hppa2.0w-hp-hpux11.11,      |hppa2.0w-hp-hpux11.11,
                   |x86_64-apple-darwin1*       |x86_64-apple-darwin*

--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Also seen on powerpc-apple-darwin9.

[Bug ipa/65439] [5.0 Regression] FAIL: g++.dg/ipa/ipa-icf-4.C -std=gnu++98 scan-ipa-dump icf "Equal symbols: 6"

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65439

--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Can you attach the dump file? It is probalby due to lack of aliases, but I am
bit surprises the number of equal symbols grows up.

[Bug ipa/65439] [5.0 Regression] FAIL: g++.dg/ipa/ipa-icf-4.C -std=gnu++98 scan-ipa-dump icf "Equal symbols: 6"

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65439

--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Created attachment 35045
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35045&action=edit
dump-ipa-icf of ipa-icf-4.C

> Can you attach the dump file? It is probalby due to lack of aliases,
> but I am bit surprises the number of equal symbols grows up.

Done.

[Bug ipa/65439] [5.0 Regression] FAIL: g++.dg/ipa/ipa-icf-4.C -std=gnu++98 scan-ipa-dump icf "Equal symbols: 6"

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65439

--- Comment #5 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
I see, the difference is _ZN12_GLOBAL__N_11AC1Ev that is same body alias on
targets supporting it, but not on Darwin where C++ FE produces a duplicate.
I suppose we want just relax the testcase template to accept this equivalence,
but my connection is bit too iffy to do it right now.

[Bug ipa/65439] [5 Regression] FAIL: g++.dg/ipa/ipa-icf-4.C -std=gnu++98 scan-ipa-dump icf "Equal symbols: 6"

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65439

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #7 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed in 5.0.
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Subject: [Bug ipa/65439] [5 Regression] FAIL: g++.dg/ipa/ipa-icf-4.C  -std=gnu++98  scan-ipa-dump icf "Equal symbols: 6"
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65439

--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Wed Mar 18 19:18:34 2015
New Revision: 221500

URL: https://gcc.gnu.org/viewcvs?rev=221500&root=gcc&view=rev
Log:
Fix PR65439.

    PR ipa/65439
    * g++.dg/ipa/ipa-icf-4.C: Extend expected number of
    equivalences either to 6 or 7.

M    gcc/testsuite/ChangeLog
M    gcc/testsuite/g++.dg/ipa/ipa-icf-4.C

Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/ipa/ipa-icf-4.C
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Subject: [Bug c++/63657] [4.9 regression] -Wunused-variable: warning supressed by virtual dtor
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idc657

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #10 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Thus this is fixed for 4.9.3 too.