Changes in string

f4fb72e6 - [libc++] Use uninitialized algorithms for vector

Tue, 26 Jul 2022 14:13:56 +0000

[libc++] Use uninitialized algorithms for vectorReviewed By: ldionne, #libcSpies: huixie90, eaeltsin, joanahalili, bgraur, alexfh, hans, avogelsgesang, augusto2112, libcxx-commits, mgornyDifferential Revision: https://reviews.llvm.org/D128146 List of files: /llvm-project-15.0.7/libcxx/include/string

1d057a6d - Revert "[libc++] Use uninitialized algorithms for vector"

Thu, 21 Jul 2022 21:19:20 +0000

Revert "[libc++] Use uninitialized algorithms for vector"This reverts commit 23cf42e706fbc2a939ce1470da16599b42258aea. List of files: /llvm-project-15.0.7/libcxx/include/string

23cf42e7 - [libc++] Use uninitialized algorithms for vector

Wed, 20 Jul 2022 18:24:46 +0000

[libc++] Use uninitialized algorithms for vectorReviewed By: ldionne, #libcSpies: libcxx-commits, mgornyDifferential Revision: https://reviews.llvm.org/D128146 List of files: /llvm-project-15.0.7/libcxx/include/string

de4a57cb - [libc++] Re-add transitive includes that had been removed since LLVM 14

Mon, 27 Jun 2022 19:53:41 +0000

[libc++] Re-add transitive includes that had been removed since LLVM 14This commit re-adds transitive includes that had been removed by4cd04d1687f1, c36870c8e79c, a83f4b9cda57, 1458458b558d, 2e2f3158c604,and 489637e66dd3. This should cover almost all the includes that hadbeen removed since LLVM 14 and that would contribute to breaking usercode when releasing LLVM 15.It is possible to disable the inclusion of these headers by defining_LIBCPP_REMOVE_TRANSITIVE_INCLUDES. The intent is that vendors willenable that macro and start fixing downstream issues immediately. Wecan then remove the macro (and the transitive includes) by default ina future release. That way, we will break users only once by removingtransitive includes in bulk instead of doing it bit by bit a everyrelease, which is more disruptive for users.Note 1: The set of headers to re-add was found by re-generating the transitive include test on a checkout of release/14.x, which provided the list of all transitive includes we used to provide.Note 2: Several includes of , , and have been added in this commit. These transitive inclusions were added when we implemented boyer_moore_searcher in .Note 3: This is a best effort patch to try and resolve downstream breakage caused since branching LLVM 14. I wasn't able to perfectly mirror transitive includes in LLVM 14 for a few headers, so I added a release note explaining it. To summarize, adding boyer_moore_searcher created a bunch of circular dependencies, so we have to break backwards compatibility in a few cases.Differential Revision: https://reviews.llvm.org/D128661 List of files: /llvm-project-15.0.7/libcxx/include/string

60f7bdfd - [libc++][AIX] Make basic_string layout compatible with earlier version

Fri, 24 Jun 2022 21:25:15 +0000

[libc++][AIX] Make basic_string layout compatible with earlier versionSummary:Patch D123580 changed to use bit fields for strings in long and short mode. As a result, this changes the layout of these strings on AIX because bit fields on AIX are 4 bytes, which breaks the ABI compatibility with earlier strings before the change on AIX. This patch uses the attribute 'packed' and anonymous structure to make string layout compatible. This patch will also make test cases alignof.compile.pass.cpp and sizeof.compile.pass.cpp introduced in D127672 pass on AIX.Reviewed by: philnik, Mordante, hubert.reinterpretcast, libc++Differential Revision: https://reviews.llvm.org/D128285 List of files: /llvm-project-15.0.7/libcxx/include/string

681cde7d - [libc++] Complete the implementation of N4190

Wed, 22 Jun 2022 08:11:14 +0000

[libc++] Complete the implementation of N4190Fixes #37402Reviewed By: ldionneSpies: EricWF, avogelsgesang, libcxx-commits, arphamanDifferential Revision: https://reviews.llvm.org/D124346 List of files: /llvm-project-15.0.7/libcxx/include/string

db1978b6 - [libc++] Mark standard-mandated includes as such

Thu, 16 Jun 2022 20:43:46 +0000

[libc++] Mark standard-mandated includes as suchReviewed By: ldionne, Mordante, #libc, saugustineSpies: saugustine, MaskRay, arichardson, mstorsjo, jloser, libcxx-commits, arphamanDifferential Revision: https://reviews.llvm.org/D127953 List of files: /llvm-project-15.0.7/libcxx/include/string

4cd04d16 - [libc++] Removes unneeded includes.

Mon, 13 Jun 2022 18:05:36 +0000

[libc++] Removes unneeded includes.Reviewed By: #libc, philnikDifferential Revision: https://reviews.llvm.org/D127675 List of files: /llvm-project-15.0.7/libcxx/include/string

ee78181f - [libc++] Remove macros for IBM compiler

Mon, 13 Jun 2022 15:21:16 +0000

[libc++] Remove macros for IBM compilerIt's not tested or used anymore -- instead a Clang-based compiler isused on IBM nowadays.Differential Revision: https://reviews.llvm.org/D127650 List of files: /llvm-project-15.0.7/libcxx/include/string

c36870c8 - [libc++] Removes unneeded includes.

Sun, 12 Jun 2022 09:55:47 +0000

[libc++] Removes unneeded includes.This removes all "TODO: remove these headers" comments from our headers.Note there seem to be more headers that can be removed, that will bedone in separate commits.Reviewed By: #libc, ldionneDifferential Revision: https://reviews.llvm.org/D127592 List of files: /llvm-project-15.0.7/libcxx/include/string

0d108f79 - [libc++] Use unsigned char in basic_string::__short again

Sat, 11 Jun 2022 21:43:00 +0000

[libc++] Use unsigned char in basic_string::__short againD125496 changed the string layout on windows. Change `__is_long_` and `__size_` back to using `unsigned char` to fix the issue.Reviewed By: Mordante, #libcSpies: jloser, libcxx-commits, ayzhaoDifferential Revision: https://reviews.llvm.org/D127566 List of files: /llvm-project-15.0.7/libcxx/include/string

3cd4531b - [libc++] Granularize includes

Fri, 10 Jun 2022 17:53:10 +0000

[libc++] Granularize includesReviewed By: ldionne, #libcSpies: libcxx-commits, wenleiDifferential Revision: https://reviews.llvm.org/D127445 List of files: /llvm-project-15.0.7/libcxx/include/string

976f3705 - [libc++] Granularize __string

Mon, 06 Jun 2022 21:35:24 +0000

[libc++] Granularize __stringReviewed By: ldionne, #libcSpies: libcxx-commits, mgornyDifferential Revision: https://reviews.llvm.org/D127156 List of files: /llvm-project-15.0.7/libcxx/include/string

2ae52326 - [libc++] Towards a simpler extern template story in libc++

Tue, 08 Jun 2021 21:25:08 +0000

[libc++] Towards a simpler extern template story in libc++The flexibility around extern template instantiation declarations inlibc++ result in a very complicated model, especially when support forslightly different configurations (like the debug mode or assertionsin the dylib) are taken into account. That results in unexpected bugslike http://llvm.org/PR50534 (and there have been multiple similarbugs in the past, notably around the debug mode).This patch gets rid of the _LIBCPP_DISABLE_EXTERN_TEMPLATE knob, whichI don't think is fundamental. Indeed, the motivation for that knob was toavoid taking a dependency on the library, however that can be done betterby linking against the static library instead. And in fact, some parts ofthe headers will always depend on things defined in the library, whichdefeats the original goal of _LIBCPP_DISABLE_EXTERN_TEMPLATE.Differential Revision: https://reviews.llvm.org/D103960 List of files: /llvm-project-15.0.7/libcxx/include/string

f3966eaf - [libc++] Make the Debug mode a configuration-time only option

Fri, 01 Apr 2022 20:38:30 +0000

[libc++] Make the Debug mode a configuration-time only optionThe debug mode has been broken pretty much ever since it was shippedbecause it was possible to enable the debug mode in user code withoutactually enabling it in the dylib, leading to ODR violations thatcaused various kinds of failures.This commit makes the debug mode a knob that is configured whenbuilding the library and which can't be changed afterwards. This isless flexible for users, however it will actually work as intendedand it will allow us, in the future, to add various kinds of checksthat do not assume the same ABI as the normal library. Furthermore,this will make the debug mode more robust, which means that vendorsmight be more tempted to support it properly, which hasn't been thecase with the current debug mode.This patch shouldn't break any user code, except folks who are buildingagainst a library that doesn't have the debug mode enabled and who tryto enable the debug mode in their code. Such users will get a compile-timeerror explaining that this configuration isn't supported anymore.In the future, we should further increase the granularity of the debugmode checks so that we can cherry-pick which checks to enable, like wedo for unspecified behavior randomization.Differential Revision: https://reviews.llvm.org/D122941 List of files: /llvm-project-15.0.7/libcxx/include/string

4eab04f8 - [libc++] Remove a bunch of conditionals on _LIBCPP_DEBUG_LEVEL

Fri, 03 Jun 2022 19:17:03 +0000

[libc++] Remove a bunch of conditionals on _LIBCPP_DEBUG_LEVELInstead of providing two different constructors for iterators thatsupport the debug mode, provide a single constructor but leave thecontainer parameter unused when the debug mode is not enabled.This allows simplifying all the call sites to unconditionally passthe container, which removes a bunch of duplication in the container'simplementation.Note that this patch does add some complexity to std::span, howeverthat is only because std::span has the ability to use raw pointersas iterators instead of __wrap_iter. In retrospect, I believe it wasa mistake to provide that capability, and so it will be removed in afuture patch, along with the complexity added by this patch.Differential Revision: https://reviews.llvm.org/D126993 List of files: /llvm-project-15.0.7/libcxx/include/string

34f73804 - [libc++] Remove unused __functional includes

Fri, 20 May 2022 22:45:51 +0000

[libc++] Remove unused __functional includesReviewed By: ldionne, #libcSpies: arichardson, smeenai, libcxx-commits, arphamanDifferential Revision: https://reviews.llvm.org/D126098 List of files: /llvm-project-15.0.7/libcxx/include/string

5d55ffe9 - [libc++] Simplify the string structures a bit more

Sat, 14 May 2022 10:38:00 +0000

[libc++] Simplify the string structures a bit moreThis simplifies the string structs a bit more and the normal layout should not contain any undefined behaviour anymore. I don't think there is a way to achieve this in the alternate string mode without breaking the ABI.Reviewed By: ldionne, #libcSpies: libcxx-commitsDifferential Revision: https://reviews.llvm.org/D125496 List of files: /llvm-project-15.0.7/libcxx/include/string

c095440c - [libc++] Remove __invalidate_all_iterators and replace the uses with std::__debug_db_invalidate_all

Sun, 08 May 2022 14:40:04 +0000

[libc++] Remove __invalidate_all_iterators and replace the uses with std::__debug_db_invalidate_allReviewed By: ldionne, #libcSpies: libcxx-commitsDifferential Revision: https://reviews.llvm.org/D125188 List of files: /llvm-project-15.0.7/libcxx/include/string

08f68dfe - [libc++] Add a few more debug wrapper functions

Sat, 07 May 2022 20:20:23 +0000

[libc++] Add a few more debug wrapper functionsReviewed By: ldionne, #libc, jloserSpies: libcxx-commitsDifferential Revision: https://reviews.llvm.org/D125176 List of files: /llvm-project-15.0.7/libcxx/include/string