Eric Fiselier 522aaf67ea [libcxx] Delay evaluation of __make_tuple_types to prevent blowing the max template instantiation depth. Fixes Bug #18345 ... Summary: http://llvm.org/bugs/show_bug.cgi?id=18345 Tuple's constructor and assignment operators for "tuple-like" types evaluates __make_tuple_types unnecessarily. In the case of a large array this can blow the template instantiation depth. Ex: ``` #include <array> #include <tuple> #include <memory> typedef std::array<int, 1256> array_t; typedef std::tuple<array_t> tuple_t; int main() { array_t a; tuple_t t(a); // broken t = a; // broken // make_shared uses tuple behind the scenes. This bug breaks this code. std::make_shared<array_t>(a); } ``` To prevent this from happening we delay the instantiation of `__make_tuple_types` until after we perform the length check. Currently `__make_tuple_types` is instantiated at the same time that the length check . Test Plan: Two tests have been added. One for the "tuple-like" constructors and another for the "tuple-like" assignment operator. Reviewers: mclow.lists, EricWF Reviewed By: EricWF Subscribers: K-ballo, cfe-commits Differential Revision: http://reviews.llvm.org/D4467 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@220769 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-28 06:31:22 +00:00
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algorithms	Create a 'comma_iterator' class that overloads operator, and asserts when it's called. Add tests to mismatch to make sure it can't be blindsided by such an evil iterator. More tests for other algorithms forthcoming. Thanks to STL for pointing this out at CppCon and Yakov Galka for opening LWG issue #2133	2014-09-16 20:38:11 +00:00
atomics	Test that the single-threaded lit feature is available iff the corresponding guard is #defined	2014-10-27 22:39:19 +00:00
containers	[libcxx] Fix use of operator comma where the types can be user defined	2014-10-27 19:28:20 +00:00
depr	Some tests used __typeof__ instead of decltype. Replace these usages.	2014-10-21 15:07:09 +00:00
diagnostics	Linux: Correctly identify valid error codes	2014-05-29 05:02:22 +00:00
experimental	[libcxx] expose experimental::erased_type for all standard versions.	2014-07-24 19:17:38 +00:00
extensions	Do not derive __gnu_cxx::hash<T> from std::hash<T>.	2014-03-06 04:11:10 +00:00
input.output	Whitespace maintenance. Remove a bunch of tabs that snuck in. No functionality change	2014-10-18 11:03:33 +00:00
iterators	Implement LWG 2360: 'reverse_iterator::operator*() is unimplementable'. Note that this is a (small) behavior change in the library. Reverse iterators whose base iterators' operator* return references to 'within themselves' have been sacrificed to the greater goal of avoiding data races.	2014-03-11 17:16:17 +00:00
language.support	Some tests used __typeof__ instead of decltype. Replace these usages.	2014-10-21 15:07:09 +00:00
localization	[libcxx] XFAIL all currently failing libc++ tests for linux.	2014-10-23 21:17:36 +00:00
numerics	[libcxx] Fix SFINAE in <cmath>. Patch from K-Ballo.	2014-10-17 00:31:47 +00:00
re	[libcxx] Remove use of uniform initialization from regex tests so that they compile in C++03.	2014-10-27 19:29:32 +00:00
strings	Mark cuchar tests as always xfail since we don't provide the header'	2014-08-18 05:09:51 +00:00
support	Fix use of operator comma in is_permutation and delete comma operator for test iterators.	2014-10-27 20:26:25 +00:00
thread	Add support for "fancy" pointers to promise and packaged_task.	2014-10-23 06:24:45 +00:00
utilities	[libcxx] Delay evaluation of __make_tuple_types to prevent blowing the max template instantiation depth. Fixes Bug #18345	2014-10-28 06:31:22 +00:00
CMakeLists.txt	[libcxx] Add --show-unsupported and --show-xfail to check-libcxx's default LIT args.	2014-08-23 04:33:20 +00:00
lit.cfg	Add special case handling of linux target triples that do not contain -gnu.	2014-10-27 22:14:25 +00:00
lit.site.cfg.in	[libcxx] Redo adding support for building and testing with an ABI library not along linker paths	2014-10-19 00:42:41 +00:00
nothing_to_do.pass.cpp	Test commit: Reverting whitespace changes	2014-07-17 05:10:03 +00:00
testit	Apply patch for Albert Wong: 'Modify testit to allow filtering tests by prefixes'.	2014-01-15 16:28:42 +00:00