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15 Commits

Author SHA1 Message Date
Eric Fiselier
1e048a3c69 Work around GCC 9.0 regression 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@349663 91177308-0d34-0410-b5e6-96231b3b80d8
 2018-12-19 18:58:22 +00:00
Eric Fiselier
8c36703b2b Fix static assert diagnostic checks in i386 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@349252 91177308-0d34-0410-b5e6-96231b3b80d8
 2018-12-15 05:18:56 +00:00
Eric Fiselier
01fac08922 Tolerate Clangs new static_assert messages 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@349189 91177308-0d34-0410-b5e6-96231b3b80d8
 2018-12-14 20:42:36 +00:00
Eric Fiselier
e7f8cd476d [libc++] Shrink variant's index type when possible 
Summary:
Currently `std::variant` always uses an unsigned int to store the variant index. However this isn't nessesary and causes `std::variant` to be larger than it needs to be in most cases.

This patch changes the index type to be `unsigned char` when possible, and `unsigned short` or `unsigned int` otherwise, depending on the size (Although it's questionable if it's even possible to create a variant with 65535 elements.

Unfortunately this change is an ABI break, and as such is only enabled in ABI v2.

Reviewers: mpark

Reviewed By: mpark

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D40210

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@318621 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-11-19 04:19:44 +00:00
Marshall Clow
3128b5abf0 Mark the recent variant test as UNSUPPORTED for C++ before 17 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@305198 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-06-12 16:33:41 +00:00
Marshall Clow
bc37f8d93d Make tuple_element static_assert in pair if the index is out of range. Also, add a message to variant_alternative<> in the similar case (it already asserted). Add tests for this 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@305196 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-06-12 16:13:17 +00:00
Casey Carter
3da9072b08 [test] Test changes to accommodate LWG 2904 "Make variant move-assignment more exception safe" 
Also: Move constexpr / triviality extension tests into the std tree and make them conditional on _LIBCPP_VERSION / _MSVC_STL_VERSION.

https://reviews.llvm.org/D32671

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@304847 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-06-07 00:06:04 +00:00
Mehdi Amini
d3acadce0c Fix Apple-specific XFAIL directive in libc++ test 
These tests are failing in XCode 8.0, 8.1, and 8.2, but not in Xcode
8.3. Annoyingly the version numbering for clang does not follow Xcode
and is bumped to 8.1 only in Xcode 8.3. So Xfailing apple-clang-8.0
should catch all cases here.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@296704 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-01 23:14:34 +00:00
Eric Fiselier
dceaa0e352 Add gcc-[56] clang-3.[678] to list of XFAILS for variant tests. Patch from Michael Park 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@291094 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-01-05 09:06:30 +00:00
Eric Fiselier
704ed27a81 Use C++11 static_assert in variant tests. Patch from Michael Park 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@291093 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-01-05 09:03:43 +00:00
Eric Fiselier
9c6b70a0af Use C++11 static_assert in variant tests. Patch from Michael Park 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@291021 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-01-04 22:43:08 +00:00
Eric Fiselier
20ace04348 Add apple-clang-8 to list of XFAILS for some variant tests. Patch from Michael Park 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@290440 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-12-23 19:07:54 +00:00
Eric Fiselier
b0d421ae1e XFAIL variant tests for apple-clang 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@288559 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-12-03 00:33:03 +00:00
Eric Fiselier
ac5c826faf Work around Clang 3.8 bugs 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@288556 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-12-03 00:13:33 +00:00
Eric Fiselier
cab2af8418 Implement C++17 <variant>. Patch from Michael Park! 
This patch was reviewed as https://reviews.llvm.org/D23263.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@288547 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-12-02 23:00:05 +00:00