Repository navigation
Use casts in _Atomic_reinterpret_as for integral and pointer types. - #227
Merged
Billy O'Neal (BillyONeal) merged 1 commit intoOct 28, 2019
Merged
Conversation
Resolves microsoft#85 / DevCom-706195 Casey applying the new atomic implementation fixed us breaking the strict aliasing rules, but the memcpy is causing a code size regression for non-`/Oi` customers. This change should restore code size for the most common uses of atomic, which are `atomic` and `atomic `.
Billy O'Neal (BillyONeal)
force-pushed
the
static_cast_atomic
branch
from
October 28, 2019 21:18
1555dba to
906bf7b
Compare
Billy O'Neal (BillyONeal)
changed the title
Stephan T. Lavavej (StephanTLavavej)
approved these changes
Oct 28, 2019
Billy O'Neal (BillyONeal)
changed the title
Casey Carter (CaseyCarter)
approved these changes
Oct 28, 2019
fengjixuchui
added a commit
to fengjixuchui/STL
that referenced
this pull request
Oct 29, 2019
Use casts for most common atomic cases (microsoft#227)
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Resolves #85 / DevCom-706195
Description
Casey applying the new atomic implementation fixed us breaking the strict aliasing rules, but the memcpy is causing a code size regression for non-
/Oicustomers. This change should restore code size for the most common uses of atomic, which areatomicandatomic.Checklist
If you're unsure about a box, leave it unchecked. A maintainer will help you.
community PRs will be delayed until the test and CI systems are online.
_Uglyas perhttps://eel.is/c++draft/lex.name#3.1 or there are no product code changes.
members, adding virtual functions, changing whether a type is an aggregate
or trivially copyable, etc.).
the C++ Working Draft as a reference (and any other cited standards).
If they were derived from a project that's already listed in NOTICE.txt,
that's fine, but please mention it. If they were derived from any other
project (including Boost and libc++, which are not yet listed in
NOTICE.txt), you must mention it here, so we can determine whether the
license is compatible and what else needs to be done.