Results for 8.0.1 20180316 (experimental) [trunk revision 258610] (GCC) libstdc++ testsuite on x86_64-pc-linux-gnu

[Jonathan Wakely]

On 20 March 2018 at 21:02, François Dumont wrote:
> On 20/03/2018 19:20, Jonathan Wakely wrote:
>>
>> On 17 March 2018 at 09:01, Jonathan Wakely wrote:
>>>
>>> Native configuration is x86_64-pc-linux-gnu
>>>
>>>                  === libstdc++ tests ===
>>>
>>>
>>> Running target unix/-std=gnu++11/-D_GLIBCXX_ASSERTIONS
>>>
>>>                  === libstdc++ Summary for
>>> unix/-std=gnu++11/-D_GLIBCXX_ASSERTIONS ===
>>>
>>> # of expected passes            12330
>>> # of expected failures          71
>>> # of unsupported tests          579
>>>
>>> Running target unix/-std=gnu++11/-D_GLIBCXX_DEBUG
>>> XPASS: 21_strings/basic_string_view/element_access/char/2.cc execution
>>> test
>>> XPASS: 21_strings/basic_string_view/element_access/wchar_t/2.cc execution
>>> test
>>> FAIL: 23_containers/bitset/hash/1.cc (test for excess errors)
>>> UNRESOLVED: 23_containers/bitset/hash/1.cc compilation failed to produce
>>> executable
>>
>> These debug mode failures are regressions, reported as
>> https://gcc.gnu.org/PR84998
>>
>> I think they all have the same root cause (Nathan fixed a bug in G++).
>>
> I had already prepared this patch. Thanks for explaining why we have this
> problem now.

Ah I was just about to commit my own fix.

> Note that I chose to use full specialization with std::hash<> for
> std::bitset and std::vector<bool>.

Great, that's an improvement over my patch.

> It also fix a versioned namespace issue when partially specializing
> std::hash for debug vector<bool>.

Even better.

> Tested under Linux x86_64 normal, debug and versioned namespace modes.
>
> Ok to commit ?

Yes please!

Please be sure to add "PR libstdc++/84998" to the changelog entry so
it updates bugzilla.

Thanks very much.