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* [Bug c++/61596] New: -Wunused-local-typedefs warns incorrectly on a typedef that's referenced indirectly
@ 2014-06-24 16:49 thakis at chromium dot org
  2014-06-26 17:01 ` [Bug c++/61596] " paolo.carlini at oracle dot com
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: thakis at chromium dot org @ 2014-06-24 16:49 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61596

            Bug ID: 61596
           Summary: -Wunused-local-typedefs warns incorrectly on a typedef
                    that's referenced indirectly
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: thakis at chromium dot org

-Wunused-local-typedefs warns that the typedef in line "XXX" is unused, but
it's used in line "YYY":

auto f() {
  struct S {
    typedef int t; // XXX
  };
  return S();
}
void g() {
  auto x = f();
  decltype(x)::t y; // YYY
}

/example.cpp: In function ‘auto f()’:

2 : warning: typedef ‘f()::S::t’ locally defined but not used
[-Wunused-local-typedefs]

struct S { typedef int t; };

^

(This is with 4.9.0. Testcase from Richard Smith.)
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From: "ro at CeBiTec dot Uni-Bielefeld.DE" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/61268] [4.10 regression] ICE in vt_expand_var_loc_chain, at var-tracking.c:8262
Date: Tue, 24 Jun 2014 17:03:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ida268

--- Comment #7 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> ---
> --- Comment #6 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> ---
>> --- Comment #5 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
> [...]
>> The patch passed bootstrap on x86_64-linux-gnu but could you test it for
>> sparc too?
>
> Sure: sparc-sun-solaris2.11 bootstrap in progress.  I'll be leaving for
> a short vacation before that finishes, so don't expect a result before
> tuesday next week.

The bootstrap finished successfully and the ICE is gone.

Thanks.
        Rainer


^ permalink raw reply	[flat|nested] 7+ messages in thread
end of thread, other threads:[~2022-10-30 20:13 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-06-24 16:49 [Bug c++/61596] New: -Wunused-local-typedefs warns incorrectly on a typedef that's referenced indirectly thakis at chromium dot org
2014-06-26 17:01 ` [Bug c++/61596] " paolo.carlini at oracle dot com
2014-07-28  1:53 ` thakis at chromium dot org
2022-01-24 12:29 ` redi at gcc dot gnu.org
2022-01-25 21:09 ` cvs-commit at gcc dot gnu.org
2022-03-07 10:46 ` redi at gcc dot gnu.org
2022-10-30 20:13 ` pinskia at gcc dot gnu.org

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