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add language-level support for thread-local data #10310

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thestinger opened this issue Nov 6, 2013 · 0 comments · Fixed by #10312
Closed

add language-level support for thread-local data #10310

thestinger opened this issue Nov 6, 2013 · 0 comments · Fixed by #10312
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C-enhancement Category: An issue proposing an enhancement or a PR with one. I-slow Issue: Problems and improvements with respect to performance of generated code.

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@thestinger
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LLVM has a thread_local specifier, for fast thread-local data. This could be exposed with a #[thread_local] attribute.

It will still be necessary for #[thread_local] static mut to be unsafe, because a borrow would have a 'static lifetime and freezing wouldn't really be possible...
@thestinger thestinger mentioned this issue Nov 6, 2013
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bors added a commit that referenced this issue Nov 26, 2013
@bors
auto merge of #10312 : thestinger/rust/thread_local, r=alexcritchton
35ebf03 
This provides a building block for fast thread-local storage. It does
not change the safety semantics of `static mut`.

Closes #10310
Jarcho pushed a commit to Jarcho/rust that referenced this issue Feb 26, 2023
@bors
Auto merge of rust-lang#10310 - c410-f3r:arith-2, r=Alexendoo
6f353fd 
[arithmetic_side_effects] Fix rust-lang#10209

Fix rust-lang#10209

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changelog: Enhancement: [`arithmetic_side_effects`]: No longer lints, if safe constant values are used.
[rust-lang#10310](rust-lang/rust-clippy#10310)
<!-- changelog_checked -->
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C-enhancement Category: An issue proposing an enhancement or a PR with one. I-slow Issue: Problems and improvements with respect to performance of generated code.
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add #[thread_local] attribute
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@thestinger