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Matthew Maurer dbff90c2a7 LLVM 18 x86 data layout update 
With https://reviews.llvm.org/D86310 LLVM now has i128 aligned to
16-bytes on x86 based platforms. This will be in LLVM-18. This patch
updates all our spec targets to be 16-byte aligned, and removes the
alignment when speaking to older LLVM.

This results in Rust overaligning things relative to LLVM on older LLVMs.

This alignment change was discussed in rust-lang/compiler-team#683

See #54341 for additional information about why this is happening and
where this will be useful in the future.

This *does not* stabilize `i128`/`u128` for FFI.
2024-01-19 10:52:01 +01:00
..
src LLVM 18 x86 data layout update 2024-01-19 10:52:01 +01:00
Cargo.toml Update measureme crate to version 11 2024-01-13 16:32:03 +01:00
messages.ftl warn when using an unstable feature with -Ctarget-feature 2023-11-06 09:44:00 +01:00
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.