Changes in string

55c5dad2 - Merge commit 382f70a877f0 from llvm-project (by Louis Dionne):

Fri, 07 Jun 2024 18:42:53 +0000

Merge commit 382f70a877f0 from llvm-project (by Louis Dionne): [libc++][NFC] Rewrite function call on two lines for clarity (#79141) Previously, there was a ternary conditional with a less-than comparison appearing inside a template argument, which was really confusing because of the <...> of the function template. This patch rewrites the same statement on two lines for clarity.Merge commit d129ea8d2fa3 from llvm-project (by Vitaly Buka): [libcxx] Align `__recommend() + 1` by __endian_factor (#90292) This is detected by asan after #83774 Allocation size will be divided by `__endian_factor` before storing. If it's not aligned, we will not be able to recover allocation size to pass into `__alloc_traits::deallocate`. we have code like this ``` auto __allocation = std::__allocate_at_least(__alloc(), __recommend(__sz) + 1); __p = __allocation.ptr; __set_long_cap(__allocation.count); void __set_long_cap(size_type __s) _NOEXCEPT { __r_.first().__l.__cap_ = __s / __endian_factor; __r_.first().__l.__is_long_ = true; } size_type __get_long_cap() const _NOEXCEPT { return __r_.first().__l.__cap_ * __endian_factor; } inline ~basic_string() { __annotate_delete(); if (__is_long()) __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap()); } ``` 1. __recommend() -> even size 2. `std::__allocate_at_least(__alloc(), __recommend(__sz) + 1)` - > not even size 3. ` __set_long_cap() `- > lose one bit of size for __endian_factor == 2 (see `/ __endian_factor`) 4. `__alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap())` -> uses even size (see `__get_long_cap`)This should fix incorrect deallocation sizes for some instances ofstd::string. Memory profiling or debugging tools like AddressSanitizer,LeakSanitizer or TCMalloc could then complain about the the size passedto a deallocation not matching the size originally passed to theallocation.Reported by: Aliaksei Kandratsenka PR: 279560MFC after: 3 days(cherry picked from commit ead8e4c081e5c4de4d508fc353f381457b058ca6) List of files: /freebsd-14.2/contrib/llvm-project/libcxx/include/string

b9d9368b - Merge llvm-project release/18.x llvmorg-18.1.0-rc2-0-gc6c86965d967

Wed, 07 Feb 2024 14:58:02 +0000

Merge llvm-project release/18.x llvmorg-18.1.0-rc2-0-gc6c86965d967This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb andopenmp to llvm-project release/18.x llvmorg-18.1.0-rc2-0-gc6c86965d967.PR: 276104MFC after: 1 month(cherry picked from commit b3edf4467982447620505a28fc82e38a414c07dc) List of files: /freebsd-14.2/contrib/llvm-project/libcxx/include/string

a58f00ea - Merge llvm-project main llvmorg-18-init-18359-g93248729cfae

Wed, 24 Jan 2024 19:17:23 +0000

Merge llvm-project main llvmorg-18-init-18359-g93248729cfaeThis updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb andopenmp to llvm-project main llvmorg-18-init-18359-g93248729cfae, thelast commit before the upstream release/18.x branch was created.PR: 276104MFC after: 1 month(cherry picked from commit 7a6dacaca14b62ca4b74406814becb87a3fefac0) List of files: /freebsd-14.2/contrib/llvm-project/libcxx/include/string

e710425b - Merge llvm-project main llvmorg-18-init-15692-g007ed0dccd6a

Mon, 25 Dec 2023 17:35:41 +0000

Merge llvm-project main llvmorg-18-init-15692-g007ed0dccd6aThis updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb andopenmp to llvm-project main llvmorg-18-init-15692-g007ed0dccd6a.PR: 276104MFC after: 1 month(cherry picked from commit cb14a3fe5122c879eae1fb480ed7ce82a699ddb6) List of files: /freebsd-14.2/contrib/llvm-project/libcxx/include/string

c9157d92 - Merge llvm-project main llvmorg-18-init-15088-gd14ee76181fb

Mon, 18 Dec 2023 20:30:12 +0000

Merge llvm-project main llvmorg-18-init-15088-gd14ee76181fbThis updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb andopenmp to llvm-project main llvmorg-18-init-15088-gd14ee76181fb.PR: 276104MFC after: 1 month(cherry picked from commit 5f757f3ff9144b609b3c433dfd370cc6bdc191ad) List of files: /freebsd-14.2/contrib/llvm-project/libcxx/include/string

fe013be4 - Merge llvm-project main llvmorg-17-init-19304-gd0b54bb50e51

Sat, 02 Sep 2023 21:17:18 +0000

Merge llvm-project main llvmorg-17-init-19304-gd0b54bb50e51This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb andopenmp to llvm-project main llvmorg-17-init-19304-gd0b54bb50e51, thelast commit before the upstream release/17.x branch was created.PR: 273753MFC after: 1 month(cherry picked from commit 06c3fb2749bda94cb5201f81ffdb8fa6c3161b2e) List of files: /freebsd-14.2/contrib/llvm-project/libcxx/include/string

0b57cec5 - Move all sources from the llvm project into contrib/llvm-project.

Fri, 20 Dec 2019 19:53:05 +0000

Move all sources from the llvm project into contrib/llvm-project.This uses the new layout of the upstream repository, which was recentlymigrated to GitHub, and converted into a "monorepo". That is, most ofthe earlier separate sub-projects with their own branches and tags wereconsolidated into one top-level directory, and are now branched andtagged together.Updating the vendor area to match this layout is next. List of files: /freebsd-14.2/contrib/llvm-project/libcxx/include/string