[Bug libstdc++/105722] New: [10 regression] std/ranges/adaptors/elements.cc fails after r10-10724-g93ec7bf2253061

[Bug libstdc++/105722] New: [10 regression] std/ranges/adaptors/elements.cc fails after r10-10724-g93ec7bf2253061

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105722

            Bug ID: 105722
           Summary: [10 regression] std/ranges/adaptors/elements.cc fails
                    after r10-10724-g93ec7bf2253061
           Product: gcc
           Version: 10.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

g:93ec7bf22530610ef697fd3a64a28bebd589c790, r10-10724-g93ec7bf2253061

spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-10-test/./gcc/xg++
-shared-libgcc -B/home/seurer/gcc/git/build/gcc-10-test/./gcc -nostdinc++
-L/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/src
-L/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/src/.libs
-L/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs
-B/home/seurer/gcc/git/install/gcc-10-test/powerpc64le-unknown-linux-gnu/bin/
-B/home//seurer/gcc/git/install/gcc-10-test/powerpc64le-unknown-linux-gnu/lib/
-isystem
/home/seurer/gcc/git/install/gcc-10-test/powerpc64le-unknown-linux-gnu/include
-isystem
/home/seurer/gcc/git/install/gcc-10-test/powerpc64le-unknown-linux-gnu/sys-include
-fchecking=1
-B/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/./libstdc++-v3/src/.libs
-fmessage-length=0 -fno-show-column -ffunction-sections -fdata-sections -g -O2
-D_GNU_SOURCE -DLOCALEDIR="." -nostdinc++
-I/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/powerpc64le-unknown-linux-gnu
-I/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include
-I/home/seurer/gcc/git/gcc-10-test/libstdc++-v3/libsupc++
-I/home/seurer/gcc/git/gcc-10-test/libstdc++-v3/include/backward
-I/home/seurer/gcc/git/gcc-10-test/libstdc++-v3/testsuite/util
/home/seurer/gcc/git/gcc-10-test/libstdc++-v3/testsuite/std/ranges/adaptors/elements.cc
-std=gnu++2a -fno-diagnostics-show-caret -fdiagnostics-color=never
-fdiagnostics-urls=never ./libtestc++.a -Wl,--gc-sections
-L/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/src/filesystem/.libs
-lm -o ./elements.exe^M
In file included from
/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/bits/ranges_algobase.h:38,^M
                 from
/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/bits/ranges_algo.h:35,^M
                 from
/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/algorithm:64,^M
                 from
/home/seurer/gcc/git/gcc-10-test/libstdc++-v3/testsuite/std/ranges/adaptors/elements.cc:21:^M
/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/ranges:
In instantiation of 'struct
std::ranges::transform_view<std::ranges::ref_view<std::vector<int> >,
test05()::<lambda(auto:17)> >::_Iterator<false>':^M
/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/bits/iterator_concepts.h:918:
  required from 'constexpr auto
std::ranges::__cust_access::_Begin::operator()(_Tp&&) const [with _Tp =
std::ranges::transform_view<std::ranges::ref_view<std::vector<int> >,
test05()::<lambda(auto:17)> >&]'^M
/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/bits/range_access.h:874:
  required from 'constexpr auto
std::ranges::views::__adaptor::operator|(_Range&&, const
std::ranges::views::__adaptor::_RangeAdaptorClosure<_Callable>&) [with _Range =
std::ranges::transform_view<std::ranges::ref_view<std::vector<int> >,
test05()::<lambda(auto:17)> >; _Callable = <lambda(_Range&&)>]'^M
/home/seurer/gcc/git/gcc-10-test/libstdc++-v3/testsuite/std/ranges/adaptors/elements.cc:102:
  required from here^M
/home/seurer/gcc/git/build/gcc-10-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/ranges:1829:
internal compiler error: canonical types differ for identical types 'auto' and
'auto'^M


commit 93ec7bf22530610ef697fd3a64a28bebd589c790 (HEAD)
Author: Jason Merrill <jason@redhat.com>
Date:   Tue Apr 26 00:19:40 2022 -0400

    c++: pack init-capture of unresolved overload [PR102629]

[Bug libstdc++/105722] [10 regression] std/ranges/adaptors/elements.cc fails after r10-10724-g93ec7bf2253061

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105722

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |10.3.0
   Target Milestone|---                         |10.4
           Priority|P3                          |P1
      Known to fail|                            |10.3.1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Makes it P1 since 10.3.0 worked(?)

[Bug libstdc++/105722] [10 regression] std/ranges/adaptors/elements.cc fails after r10-10724-g93ec7bf2253061

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105722

--- Comment #2 from seurer at gcc dot gnu.org ---
Yes, it used to work.

[Bug c++/105722] [10 regression] std/ranges/adaptors/elements.cc fails after r10-10724-g93ec7bf2253061

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105722

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
          Component|libstdc++                   |c++
         Depends on|                            |102629
   Last reconfirmed|                            |2022-05-25
             Status|UNCONFIRMED                 |NEW


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102629
[Bug 102629] [10 Regression] ICE: tree check in lookup_base, at cp/search.c:233
since r10-2194-g10acaf4db9f8b54b

[Bug c++/105722] [10 regression] std/ranges/adaptors/elements.cc fails after r10-10724-g93ec7bf2253061

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105722

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:

https://gcc.gnu.org/g:bea4429004b02b834c6a15dcc3bfbd953b230585

commit r10-10759-gbea4429004b02b834c6a15dcc3bfbd953b230585
Author: Jason Merrill <jason@redhat.com>
Date:   Wed May 25 12:55:26 2022 -0400

    Revert "c++: pack init-capture of unresolved overload [PR102629]"

            PR c++/105722

    This reverts commit 93ec7bf22530610ef697fd3a64a28bebd589c790.

[Bug c++/105722] [10 regression] std/ranges/adaptors/elements.cc fails after r10-10724-g93ec7bf2253061

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105722

Jason Merrill <jason at gcc dot gnu.org> changed:

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

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed by reverting that change.  I take it the 11 branch doesn't have the same
problem?

[Bug c++/105722] [10 regression] std/ranges/adaptors/elements.cc fails after r10-10724-g93ec7bf2253061

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105722

--- Comment #5 from seurer at gcc dot gnu.org ---
I do not see it in my gcc 11 test runs.