[Bug c++/63532] New: Cannot increase access of member function template.

[Bug c++/63532] New: Cannot increase access of member function template.

[bugs at qult dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63532

            Bug ID: 63532
           Summary: Cannot increase access of member function template.
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: bugs at qult dot net

The following code is rejected by GCC while it is accepted by Clang.

struct Foo {
  template <typename>
  void    meth();
};

struct Bar : private Foo {
  using Foo::meth;
};

int main()
{
  (void) &Bar::meth<int>;
}

GCC accepts a variant where Foo::meth is a plain (i.e., non-template) member
function.

[Bug c++/63532] Cannot increase access of member function template.

[redi at gcc dot gnu.org]

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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63532

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-10-14
     Ever confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
G++ accepts the using declaration but it seems to have no effect when forming a
pointer to member for a specialization:

in.cc: In function ‘int main()’:
in.cc:3:11: error: ‘void Foo::meth() [with <template-parameter-1-1> = int]’ is
inaccessible
   void    meth();
           ^
in.cc:12:16: error: within this context
   (void) &Bar::meth<int>;
                ^
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From: "y.gribov at samsung dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/63533] New: Function splitter causes unnecessary splits
Date: Tue, 14 Oct 2014 11:31:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idc533

            Bug ID: 63533
           Summary: Function splitter causes unnecessary splits
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: y.gribov at samsung dot com
                CC: hubicka at gcc dot gnu.org, khlebnikov at openvz dot org,
                    ryabinin.a.a at gmail dot com

Created attachment 33712
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id3712&actioníit
Short repro

The attached reprocase contains an innocent function which can not ever benefit
from inlining. But fnsplit pass still jumps on it and splits it to two
functions thus hurting performance and code size:
 gcc -O2 -fconserve-stack -S repro.i -o-
 ...g.part.0:
 ...
 g:
 ...
     call    g.part.0
This can not be recovered later by inliner because of -fconserve-stack option.
The reprocase is a reduced version of a real-world code (from Linux kernel).

[Bug c++/63532] Cannot increase access of member function template.

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63532

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=56152

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is similar issue to PR 56152 (static call vs non-static).

[Bug c++/63532] Cannot increase access of member function template.

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63532

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |me at elchris dot org

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 104488 has been marked as a duplicate of this bug. ***