llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-libcxx Author: None (llvmbot) <details> <summary>Changes</summary> Backport 2a83cf5d0e592890f74c5d5ff4a30ae4cf54b61b Requested by: @<!-- -->ldionne --- Patch is 39.15 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/154945.diff 10 Files Affected: - (added) libcxx/test/libcxx/containers/associative/map/abi.compile.pass.cpp (+161) - (added) libcxx/test/libcxx/containers/associative/set/abi.compile.pass.cpp (+161) - (modified) libcxx/test/libcxx/containers/associative/unord.map/abi.compile.pass.cpp (+28) - (modified) libcxx/test/libcxx/containers/associative/unord.set/abi.compile.pass.cpp (+28) - (modified) libcxx/test/libcxx/containers/sequences/deque/abi.compile.pass.cpp (+29) - (added) libcxx/test/libcxx/containers/sequences/forwardlist/abi.compile.pass.cpp (+115) - (modified) libcxx/test/libcxx/containers/sequences/list/abi.compile.pass.cpp (+30) - (modified) libcxx/test/libcxx/containers/sequences/vector.bool/abi.compile.pass.cpp (+30) - (modified) libcxx/test/libcxx/containers/sequences/vector/abi.compile.pass.cpp (+30) - (added) libcxx/test/libcxx/containers/strings/basic.string/abi.compile.pass.cpp (+106) ``````````diff diff --git a/libcxx/test/libcxx/containers/associative/map/abi.compile.pass.cpp b/libcxx/test/libcxx/containers/associative/map/abi.compile.pass.cpp new file mode 100644 index 0000000000000..04c1802bc84f6 --- /dev/null +++ b/libcxx/test/libcxx/containers/associative/map/abi.compile.pass.cpp @@ -0,0 +1,161 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +// UNSUPPORTED: libcpp-abi-no-compressed-pair-padding + +// XFAIL: FROZEN-CXX03-HEADERS-FIXME + +#include <cstdint> +#include <map> + +#include "min_allocator.h" +#include "test_allocator.h" +#include "test_macros.h" + +template <class T> +class small_pointer { + std::uint16_t offset; +}; + +template <class T> +class small_iter_allocator { +public: + using value_type = T; + using pointer = small_pointer<T>; + using size_type = std::uint16_t; + using difference_type = std::int16_t; + + small_iter_allocator() TEST_NOEXCEPT {} + + template <class U> + small_iter_allocator(small_iter_allocator<U>) TEST_NOEXCEPT {} + + T* allocate(std::size_t n); + void deallocate(T* p, std::size_t); + + friend bool operator==(small_iter_allocator, small_iter_allocator) { return true; } + friend bool operator!=(small_iter_allocator, small_iter_allocator) { return false; } +}; + +template <class T> +class final_small_iter_allocator final { +public: + using value_type = T; + using pointer = small_pointer<T>; + using size_type = std::uint16_t; + using difference_type = std::int16_t; + + final_small_iter_allocator() TEST_NOEXCEPT {} + + template <class U> + final_small_iter_allocator(final_small_iter_allocator<U>) TEST_NOEXCEPT {} + + T* allocate(std::size_t n); + void deallocate(T* p, std::size_t); + + friend bool operator==(final_small_iter_allocator, final_small_iter_allocator) { return true; } + friend bool operator!=(final_small_iter_allocator, final_small_iter_allocator) { return false; } +}; + +struct allocator_base {}; + +// Make sure that types with a common base type don't get broken. See https://llvm.org/PR154146 +template <class T> +struct common_base_allocator : allocator_base { + using value_type = T; + + common_base_allocator() TEST_NOEXCEPT {} + + template <class U> + common_base_allocator(common_base_allocator<U>) TEST_NOEXCEPT {} + + T* allocate(std::size_t n); + void deallocate(T* p, std::size_t); + + friend bool operator==(common_base_allocator, common_base_allocator) { return true; } + friend bool operator!=(common_base_allocator, common_base_allocator) { return false; } +}; + +template <class T, class Alloc> +using map_alloc = std::map<T, T, std::less<T>, Alloc>; + +struct user_struct { + map_alloc<int, common_base_allocator<std::pair<const int, int> > > v; + [[no_unique_address]] common_base_allocator<int> a; +}; + +#if __SIZE_WIDTH__ == 64 +static_assert(sizeof(user_struct) == 32, ""); +static_assert(TEST_ALIGNOF(user_struct) == 8, ""); + +static_assert(sizeof(map_alloc<int, std::allocator<std::pair<const int, int> > >) == 24, ""); +static_assert(sizeof(map_alloc<int, min_allocator<std::pair<const int, int> > >) == 24, ""); +static_assert(sizeof(map_alloc<int, test_allocator<std::pair<const int, int> > >) == 40, ""); +static_assert(sizeof(map_alloc<int, small_iter_allocator<std::pair<const int, int> > >) == 6, ""); +static_assert(sizeof(map_alloc<int, final_small_iter_allocator<std::pair<const int, int> > >) == 8, ""); + +static_assert(sizeof(map_alloc<char, std::allocator<std::pair<const char, char> > >) == 24, ""); +static_assert(sizeof(map_alloc<char, min_allocator<std::pair<const char, char> > >) == 24, ""); +static_assert(sizeof(map_alloc<char, test_allocator<std::pair<const char, char> > >) == 40, ""); +static_assert(sizeof(map_alloc<char, small_iter_allocator<std::pair<const char, char> > >) == 6, ""); +static_assert(sizeof(map_alloc<char, final_small_iter_allocator<std::pair<const char, char> > >) == 8, ""); + +static_assert(TEST_ALIGNOF(map_alloc<int, std::allocator<std::pair<const int, int> > >) == 8, ""); +static_assert(TEST_ALIGNOF(map_alloc<int, min_allocator<std::pair<const int, int> > >) == 8, ""); +static_assert(TEST_ALIGNOF(map_alloc<int, test_allocator<std::pair<const int, int> > >) == 8, ""); +static_assert(TEST_ALIGNOF(map_alloc<int, small_iter_allocator<std::pair<const int, int> > >) == 2, ""); +static_assert(TEST_ALIGNOF(map_alloc<int, final_small_iter_allocator<std::pair<const int, int> > >) == 2, ""); + +static_assert(TEST_ALIGNOF(map_alloc<char, std::allocator<std::pair<const char, char> > >) == 8, ""); +static_assert(TEST_ALIGNOF(map_alloc<char, min_allocator<std::pair<const char, char> > >) == 8, ""); +static_assert(TEST_ALIGNOF(map_alloc<char, test_allocator<std::pair<const char, char> > >) == 8, ""); +static_assert(TEST_ALIGNOF(map_alloc<char, small_iter_allocator<std::pair<const char, char> > >) == 2, ""); +static_assert(TEST_ALIGNOF(map_alloc<char, final_small_iter_allocator<std::pair<const char, char> > >) == 2, ""); + +struct TEST_ALIGNAS(32) AlignedLess {}; + +// This part of the ABI has been broken between LLVM 19 and LLVM 20. +static_assert(sizeof(std::map<int, int, AlignedLess>) == 64, ""); +static_assert(TEST_ALIGNOF(std::map<int, int, AlignedLess>) == 32, ""); + +#elif __SIZE_WIDTH__ == 32 +static_assert(sizeof(user_struct) == 16, ""); +static_assert(TEST_ALIGNOF(user_struct) == 4, ""); + +static_assert(sizeof(map_alloc<int, std::allocator<std::pair<const int, int> > >) == 12, ""); +static_assert(sizeof(map_alloc<int, min_allocator<std::pair<const int, int> > >) == 12, ""); +static_assert(sizeof(map_alloc<int, test_allocator<std::pair<const int, int> > >) == 24, ""); +static_assert(sizeof(map_alloc<int, small_iter_allocator<std::pair<const int, int> > >) == 6, ""); +static_assert(sizeof(map_alloc<int, final_small_iter_allocator<std::pair<const int, int> > >) == 8, ""); + +static_assert(sizeof(map_alloc<char, std::allocator<std::pair<const char, char> > >) == 12, ""); +static_assert(sizeof(map_alloc<char, min_allocator<std::pair<const char, char> > >) == 12, ""); +static_assert(sizeof(map_alloc<char, test_allocator<std::pair<const char, char> > >) == 24, ""); +static_assert(sizeof(map_alloc<char, small_iter_allocator<std::pair<const char, char> > >) == 6, ""); +static_assert(sizeof(map_alloc<char, final_small_iter_allocator<std::pair<const char, char> > >) == 8, ""); + +static_assert(TEST_ALIGNOF(map_alloc<int, std::allocator<std::pair<const int, int> > >) == 4, ""); +static_assert(TEST_ALIGNOF(map_alloc<int, min_allocator<std::pair<const int, int> > >) == 4, ""); +static_assert(TEST_ALIGNOF(map_alloc<int, test_allocator<std::pair<const int, int> > >) == 4, ""); +static_assert(TEST_ALIGNOF(map_alloc<int, small_iter_allocator<std::pair<const int, int> > >) == 2, ""); +static_assert(TEST_ALIGNOF(map_alloc<int, final_small_iter_allocator<std::pair<const int, int> > >) == 2, ""); + +static_assert(TEST_ALIGNOF(map_alloc<char, std::allocator<std::pair<const char, char> > >) == 4, ""); +static_assert(TEST_ALIGNOF(map_alloc<char, min_allocator<std::pair<const char, char> > >) == 4, ""); +static_assert(TEST_ALIGNOF(map_alloc<char, test_allocator<std::pair<const char, char> > >) == 4, ""); +static_assert(TEST_ALIGNOF(map_alloc<char, small_iter_allocator<std::pair<const char, char> > >) == 2, ""); +static_assert(TEST_ALIGNOF(map_alloc<char, final_small_iter_allocator<std::pair<const char, char> > >) == 2, ""); + +struct TEST_ALIGNAS(32) AlignedLess {}; + +static_assert(sizeof(std::map<int, int, AlignedLess>) == 64); +static_assert(TEST_ALIGNOF(std::map<int, int, AlignedLess>) == 32); + +#else +# error std::size_t has an unexpected size +#endif diff --git a/libcxx/test/libcxx/containers/associative/set/abi.compile.pass.cpp b/libcxx/test/libcxx/containers/associative/set/abi.compile.pass.cpp new file mode 100644 index 0000000000000..1b85bb7c93773 --- /dev/null +++ b/libcxx/test/libcxx/containers/associative/set/abi.compile.pass.cpp @@ -0,0 +1,161 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +// UNSUPPORTED: libcpp-abi-no-compressed-pair-padding + +// XFAIL: FROZEN-CXX03-HEADERS-FIXME + +#include <cstdint> +#include <set> + +#include "min_allocator.h" +#include "test_allocator.h" +#include "test_macros.h" + +template <class T> +class small_pointer { + std::uint16_t offset; +}; + +template <class T> +class small_iter_allocator { +public: + using value_type = T; + using pointer = small_pointer<T>; + using size_type = std::uint16_t; + using difference_type = std::int16_t; + + small_iter_allocator() TEST_NOEXCEPT {} + + template <class U> + small_iter_allocator(small_iter_allocator<U>) TEST_NOEXCEPT {} + + T* allocate(std::size_t n); + void deallocate(T* p, std::size_t); + + friend bool operator==(small_iter_allocator, small_iter_allocator) { return true; } + friend bool operator!=(small_iter_allocator, small_iter_allocator) { return false; } +}; + +template <class T> +class final_small_iter_allocator final { +public: + using value_type = T; + using pointer = small_pointer<T>; + using size_type = std::uint16_t; + using difference_type = std::int16_t; + + final_small_iter_allocator() TEST_NOEXCEPT {} + + template <class U> + final_small_iter_allocator(final_small_iter_allocator<U>) TEST_NOEXCEPT {} + + T* allocate(std::size_t n); + void deallocate(T* p, std::size_t); + + friend bool operator==(final_small_iter_allocator, final_small_iter_allocator) { return true; } + friend bool operator!=(final_small_iter_allocator, final_small_iter_allocator) { return false; } +}; + +struct allocator_base {}; + +// Make sure that types with a common base type don't get broken. See https://llvm.org/PR154146 +template <class T> +struct common_base_allocator : allocator_base { + using value_type = T; + + common_base_allocator() TEST_NOEXCEPT {} + + template <class U> + common_base_allocator(common_base_allocator<U>) TEST_NOEXCEPT {} + + T* allocate(std::size_t n); + void deallocate(T* p, std::size_t); + + friend bool operator==(common_base_allocator, common_base_allocator) { return true; } + friend bool operator!=(common_base_allocator, common_base_allocator) { return false; } +}; + +template <class T, class Alloc> +using set_alloc = std::set<T, std::less<T>, Alloc>; + +struct user_struct { + set_alloc<int, common_base_allocator<int> > v; + [[no_unique_address]] common_base_allocator<int> a; +}; + +#if __SIZE_WIDTH__ == 64 +static_assert(sizeof(user_struct) == 32, ""); +static_assert(TEST_ALIGNOF(user_struct) == 8, ""); + +static_assert(sizeof(set_alloc<int, std::allocator<int> >) == 24, ""); +static_assert(sizeof(set_alloc<int, min_allocator<int> >) == 24, ""); +static_assert(sizeof(set_alloc<int, test_allocator<int> >) == 40, ""); +static_assert(sizeof(set_alloc<int, small_iter_allocator<int> >) == 6, ""); +static_assert(sizeof(set_alloc<int, final_small_iter_allocator<int> >) == 8, ""); + +static_assert(sizeof(set_alloc<char, std::allocator<char> >) == 24, ""); +static_assert(sizeof(set_alloc<char, min_allocator<char> >) == 24, ""); +static_assert(sizeof(set_alloc<char, test_allocator<char> >) == 40, ""); +static_assert(sizeof(set_alloc<char, small_iter_allocator<char> >) == 6, ""); +static_assert(sizeof(set_alloc<char, final_small_iter_allocator<char> >) == 8, ""); + +static_assert(TEST_ALIGNOF(set_alloc<int, std::allocator<int> >) == 8, ""); +static_assert(TEST_ALIGNOF(set_alloc<int, min_allocator<int> >) == 8, ""); +static_assert(TEST_ALIGNOF(set_alloc<int, test_allocator<int> >) == 8, ""); +static_assert(TEST_ALIGNOF(set_alloc<int, small_iter_allocator<int> >) == 2, ""); +static_assert(TEST_ALIGNOF(set_alloc<int, final_small_iter_allocator<int> >) == 2, ""); + +static_assert(TEST_ALIGNOF(set_alloc<char, std::allocator<char> >) == 8, ""); +static_assert(TEST_ALIGNOF(set_alloc<char, min_allocator<char> >) == 8, ""); +static_assert(TEST_ALIGNOF(set_alloc<char, test_allocator<char> >) == 8, ""); +static_assert(TEST_ALIGNOF(set_alloc<char, small_iter_allocator<char> >) == 2, ""); +static_assert(TEST_ALIGNOF(set_alloc<char, final_small_iter_allocator<char> >) == 2, ""); + +struct TEST_ALIGNAS(32) AlignedLess {}; + +// This part of the ABI has been broken between LLVM 19 and LLVM 20. +static_assert(sizeof(std::set<int, AlignedLess>) == 64, ""); +static_assert(TEST_ALIGNOF(std::set<int, AlignedLess>) == 32, ""); + +#elif __SIZE_WIDTH__ == 32 +static_assert(sizeof(user_struct) == 16, ""); +static_assert(TEST_ALIGNOF(user_struct) == 4, ""); + +static_assert(sizeof(set_alloc<int, std::allocator<int> >) == 12, ""); +static_assert(sizeof(set_alloc<int, min_allocator<int> >) == 12, ""); +static_assert(sizeof(set_alloc<int, test_allocator<int> >) == 24, ""); +static_assert(sizeof(set_alloc<int, small_iter_allocator<int> >) == 6, ""); +static_assert(sizeof(set_alloc<int, final_small_iter_allocator<int> >) == 8, ""); + +static_assert(sizeof(set_alloc<char, std::allocator<char> >) == 12, ""); +static_assert(sizeof(set_alloc<char, min_allocator<char> >) == 12, ""); +static_assert(sizeof(set_alloc<char, test_allocator<char> >) == 24, ""); +static_assert(sizeof(set_alloc<char, small_iter_allocator<char> >) == 6, ""); +static_assert(sizeof(set_alloc<char, final_small_iter_allocator<char> >) == 8, ""); + +static_assert(TEST_ALIGNOF(set_alloc<int, std::allocator<int> >) == 4, ""); +static_assert(TEST_ALIGNOF(set_alloc<int, min_allocator<int> >) == 4, ""); +static_assert(TEST_ALIGNOF(set_alloc<int, test_allocator<int> >) == 4, ""); +static_assert(TEST_ALIGNOF(set_alloc<int, small_iter_allocator<int> >) == 2, ""); +static_assert(TEST_ALIGNOF(set_alloc<int, final_small_iter_allocator<int> >) == 2, ""); + +static_assert(TEST_ALIGNOF(set_alloc<char, std::allocator<char> >) == 4, ""); +static_assert(TEST_ALIGNOF(set_alloc<char, min_allocator<char> >) == 4, ""); +static_assert(TEST_ALIGNOF(set_alloc<char, test_allocator<char> >) == 4, ""); +static_assert(TEST_ALIGNOF(set_alloc<char, small_iter_allocator<char> >) == 2, ""); +static_assert(TEST_ALIGNOF(set_alloc<char, final_small_iter_allocator<char> >) == 2, ""); + +struct TEST_ALIGNAS(32) AlignedLess {}; + +static_assert(sizeof(std::set<int, AlignedLess>) == 64); +static_assert(TEST_ALIGNOF(std::set<int, AlignedLess>) == 32); + +#else +# error std::size_t has an unexpected size +#endif diff --git a/libcxx/test/libcxx/containers/associative/unord.map/abi.compile.pass.cpp b/libcxx/test/libcxx/containers/associative/unord.map/abi.compile.pass.cpp index 55d42a8d017e1..0476872487036 100644 --- a/libcxx/test/libcxx/containers/associative/unord.map/abi.compile.pass.cpp +++ b/libcxx/test/libcxx/containers/associative/unord.map/abi.compile.pass.cpp @@ -66,10 +66,36 @@ class final_small_iter_allocator final { friend bool operator!=(final_small_iter_allocator, final_small_iter_allocator) { return false; } }; +struct allocator_base {}; + +// Make sure that types with a common base type don't get broken. See https://llvm.org/PR154146 +template <class T> +struct common_base_allocator : allocator_base { + using value_type = T; + + common_base_allocator() TEST_NOEXCEPT {} + + template <class U> + common_base_allocator(common_base_allocator<U>) TEST_NOEXCEPT {} + + T* allocate(std::size_t n); + void deallocate(T* p, std::size_t); + + friend bool operator==(common_base_allocator, common_base_allocator) { return true; } + friend bool operator!=(common_base_allocator, common_base_allocator) { return false; } +}; + template <class T, class Alloc> using unordered_map_alloc = std::unordered_map<T, T, std::hash<T>, std::equal_to<T>, Alloc>; +struct user_struct { + unordered_map_alloc<int, common_base_allocator<std::pair<const int, int> > > v; + [[no_unique_address]] common_base_allocator<int> a; +}; + #if __SIZE_WIDTH__ == 64 +static_assert(sizeof(user_struct) == 48, ""); +static_assert(TEST_ALIGNOF(user_struct) == 8, ""); static_assert(sizeof(unordered_map_alloc<int, std::allocator<std::pair<const int, int> > >) == 40, ""); static_assert(sizeof(unordered_map_alloc<int, min_allocator<std::pair<const int, int> > >) == 40, ""); @@ -104,6 +130,8 @@ static_assert(sizeof(std::unordered_map<int, int, AlignedHash, UnalignedEqualTo> static_assert(TEST_ALIGNOF(std::unordered_map<int, int, AlignedHash, UnalignedEqualTo>) == 32, ""); #elif __SIZE_WIDTH__ == 32 +static_assert(sizeof(user_struct) == 24, ""); +static_assert(TEST_ALIGNOF(user_struct) == 4, ""); static_assert(sizeof(unordered_map_alloc<int, std::allocator<std::pair<const int, int> > >) == 20, ""); static_assert(sizeof(unordered_map_alloc<int, min_allocator<std::pair<const int, int> > >) == 20, ""); diff --git a/libcxx/test/libcxx/containers/associative/unord.set/abi.compile.pass.cpp b/libcxx/test/libcxx/containers/associative/unord.set/abi.compile.pass.cpp index bee2012bbea29..e9d88a126de6c 100644 --- a/libcxx/test/libcxx/containers/associative/unord.set/abi.compile.pass.cpp +++ b/libcxx/test/libcxx/containers/associative/unord.set/abi.compile.pass.cpp @@ -66,10 +66,36 @@ class final_small_iter_allocator final { friend bool operator!=(final_small_iter_allocator, final_small_iter_allocator) { return false; } }; +struct allocator_base {}; + +// Make sure that types with a common base type don't get broken. See https://llvm.org/PR154146 +template <class T> +struct common_base_allocator : allocator_base { + using value_type = T; + + common_base_allocator() TEST_NOEXCEPT {} + + template <class U> + common_base_allocator(common_base_allocator<U>) TEST_NOEXCEPT {} + + T* allocate(std::size_t n); + void deallocate(T* p, std::size_t); + + friend bool operator==(common_base_allocator, common_base_allocator) { return true; } + friend bool operator!=(common_base_allocator, common_base_allocator) { return false; } +}; + template <class T, class Alloc> using unordered_set_alloc = std::unordered_set<T, std::hash<T>, std::equal_to<T>, Alloc>; +struct user_struct { + unordered_set_alloc<int, common_base_allocator<int> > v; + [[no_unique_address]] common_base_allocator<int> a; +}; + #if __SIZE_WIDTH__ == 64 +static_assert(sizeof(user_struct) == 48, ""); +static_assert(TEST_ALIGNOF(user_struct) == 8, ""); static_assert(sizeof(unordered_set_alloc<int, std::allocator<int> >) == 40, ""); static_assert(sizeof(unordered_set_alloc<int, min_allocator<int> >) == 40, ""); @@ -103,6 +129,8 @@ static_assert(sizeof(std::unordered_set<int, AlignedHash, UnalignedEqualTo>) == static_assert(TEST_ALIGNOF(std::unordered_set<int, AlignedHash, UnalignedEqualTo>) == 32, ""); #elif __SIZE_WIDTH__ == 32 +static_assert(sizeof(user_struct) == 24, ""); +static_assert(TEST_ALIGNOF(user_struct) == 4, ""); static_assert(sizeof(unordered_set_alloc<int, std::allocator<int> >) == 20, ""); static_assert(sizeof(unordered_set_alloc<int, min_allocator<int> >) == 20, ""); diff --git a/libcxx/test/libcxx/containers/sequences/deque/abi.compile.pass.cpp b/libcxx/test/libcxx/containers/sequences/deque/abi.compile.pass.cpp index 30586d8b2422c..38f957f416c87 100644 --- a/libcxx/test/libcxx/containers/sequences/deque/abi.compile.pass.cpp +++ b/libcxx/test/libcxx/containers/sequences/deque/abi.compile.pass.cpp @@ -8,6 +8,8 @@ // UNSUPPORTED: libcpp-abi-no-compressed-pair-padding +// XFAIL: FROZEN-CXX03-HEADERS-FIXME + #include <cstdint> #include <deque> @@ -60,6 +62,25 @@ class final_small_iter_allocator final { friend bool operator!=(final_small_iter_allocator, final_small_iter_allocator) { return false; } }; +struct allocator_base {}; + +// Make sure that types with a common base type don't get broken. See https://llvm.org/PR154146 +template <class T> +struct common_base_allocator : allocator_base { + using value_type = T; + + common_base_allocator() TEST_NOEXCEPT {} + + template <class U> + common_base_allocator(common_base_allocator<U>) TEST_NOEXCEPT {} + + T... [truncated] `````````` </details> https://github.com/llvm/llvm-project/pull/154945 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
