830c98d7fa
The pause instruction requires SSE2 but was being unconditionally used on targets without it, resulting in undefined behavior. This PR fixes that by only using the pause intrinsic if SSE2 is available. It also removes the inline assembly which was not required since these instructions are available in core::arch, and extends support of the spin_loop hint to arm targets with the v6 feature which also support the yield instruction. Closes #59237 .
This directory contains the source code of the rust project, including:
rustcand its testslibstd- Various submodules for tools, like rustdoc, rls, etc.
For more information on how various parts of the compiler work, see the rustc guide.
There is also useful content in the following READMEs, which are gradually being moved over to the guide:
- https://github.com/rust-lang/rust/tree/master/src/librustc/ty/query
- https://github.com/rust-lang/rust/tree/master/src/librustc/dep_graph
- https://github.com/rust-lang/rust/tree/master/src/librustc/infer/higher_ranked
- https://github.com/rust-lang/rust/tree/master/src/librustc/infer/lexical_region_resolve