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rust/compiler/rustc_codegen_llvm
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Jubilee 4e9cf04c98
Rollup merge of #83655 - sebpop:arm64-outline-atomics, r=workingjubilee 
[aarch64] add target feature outline-atomics

Enable outline-atomics by default as enabled in clang by the following commit
https://reviews.llvm.org/rGc5e7e649d537067dec7111f3de1430d0fc8a4d11

Performance improves by several orders of magnitude when using the LSE instructions
instead of the ARMv8.0 compatible load/store exclusive instructions.

Tested on Graviton2 aarch64-linux with
x.py build && x.py install && x.py test
2021-10-04 13:58:06 -07:00
..
src Rollup merge of #83655 - sebpop:arm64-outline-atomics, r=workingjubilee 2021-10-04 13:58:06 -07:00
Cargo.toml Migrate to 2021 2021-09-20 22:21:42 -04:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

README.md

The codegen crate contains the code to convert from MIR into LLVM IR, and then from LLVM IR into machine code. In general it contains code that runs towards the end of the compilation process.

For more information about how codegen works, see the rustc dev guide.