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libcxx: update to LLVM 17

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release/17.x branch, commit 8f4dd44097c9ae25dd203d5ac87f3b48f854bba8

This adds the flag `-D_LIBCPP_PSTL_CPU_BACKEND_SERIAL`. A future
enhancement could possibly pass something different if there is a
compelling parallel implementation. That libdispatch one might be worth
looking into.
This commit is contained in:
Andrew Kelley
2023-08-11 17:34:16 -07:00
parent 9ddfacd8e6
commit 5d4439cc3e
940 changed files with 46811 additions and 22346 deletions
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37
lib/libcxx/src/algorithm.cpp vendored
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@@ -7,11 +7,25 @@
//===----------------------------------------------------------------------===//
#include <algorithm>
#include <bit>
_LIBCPP_BEGIN_NAMESPACE_STD
// TODO(varconst): this currently doesn't benefit `ranges::sort` because it uses `ranges::less` instead of `__less`.
template <class Comp, class RandomAccessIterator>
void __sort(RandomAccessIterator first, RandomAccessIterator last, Comp comp) {
auto depth_limit = 2 * std::__bit_log2(static_cast<size_t>(last - first));
// Only use bitset partitioning for arithmetic types. We should also check
// that the default comparator is in use so that we are sure that there are no
// branches in the comparator.
std::__introsort<_ClassicAlgPolicy,
ranges::less,
RandomAccessIterator,
__use_branchless_sort<ranges::less, RandomAccessIterator>::value>(
first, last, ranges::less{}, depth_limit);
}
// clang-format off
template void __sort<__less<char>&, char*>(char*, char*, __less<char>&);
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
template void __sort<__less<wchar_t>&, wchar_t*>(wchar_t*, wchar_t*, __less<wchar_t>&);
@@ -29,25 +43,6 @@ template void __sort<__less<unsigned long long>&, unsigned long long*>(unsigned
template void __sort<__less<float>&, float*>(float*, float*, __less<float>&);
template void __sort<__less<double>&, double*>(double*, double*, __less<double>&);
template void __sort<__less<long double>&, long double*>(long double*, long double*, __less<long double>&);
template bool __insertion_sort_incomplete<__less<char>&, char*>(char*, char*, __less<char>&);
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
template bool __insertion_sort_incomplete<__less<wchar_t>&, wchar_t*>(wchar_t*, wchar_t*, __less<wchar_t>&);
#endif
template bool __insertion_sort_incomplete<__less<signed char>&, signed char*>(signed char*, signed char*, __less<signed char>&);
template bool __insertion_sort_incomplete<__less<unsigned char>&, unsigned char*>(unsigned char*, unsigned char*, __less<unsigned char>&);
template bool __insertion_sort_incomplete<__less<short>&, short*>(short*, short*, __less<short>&);
template bool __insertion_sort_incomplete<__less<unsigned short>&, unsigned short*>(unsigned short*, unsigned short*, __less<unsigned short>&);
template bool __insertion_sort_incomplete<__less<int>&, int*>(int*, int*, __less<int>&);
template bool __insertion_sort_incomplete<__less<unsigned>&, unsigned*>(unsigned*, unsigned*, __less<unsigned>&);
template bool __insertion_sort_incomplete<__less<long>&, long*>(long*, long*, __less<long>&);
template bool __insertion_sort_incomplete<__less<unsigned long>&, unsigned long*>(unsigned long*, unsigned long*, __less<unsigned long>&);
template bool __insertion_sort_incomplete<__less<long long>&, long long*>(long long*, long long*, __less<long long>&);
template bool __insertion_sort_incomplete<__less<unsigned long long>&, unsigned long long*>(unsigned long long*, unsigned long long*, __less<unsigned long long>&);
template bool __insertion_sort_incomplete<__less<float>&, float*>(float*, float*, __less<float>&);
template bool __insertion_sort_incomplete<__less<double>&, double*>(double*, double*, __less<double>&);
template bool __insertion_sort_incomplete<__less<long double>&, long double*>(long double*, long double*, __less<long double>&);
template unsigned __sort5<__less<long double>&, long double*>(long double*, long double*, long double*, long double*, long double*, __less<long double>&);
// clang-format on
_LIBCPP_END_NAMESPACE_STD