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rust/compiler/rustc_codegen_llvm
Simonas Kazlauskas 9b67cba4f6 Add support for leaf fn frame pointer elimination
This PR adds ability for the target specifications to specify frame
pointer emission type that's not just “always” or “whatever cg decides”.

In particular there's a new mode that allows omission of the frame
pointer for leaf functions (those that don't call any other functions).

We then set this new mode for Aarch64-based Apple targets.

Fixes #86196
2021-06-30 19:45:17 +03:00
..
src Add support for leaf fn frame pointer elimination 2021-06-30 19:45:17 +03:00
Cargo.toml Drop metadata_encoding_version. 2021-06-01 21:12:27 +02:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

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.