mirror of
https://github.com/rust-lang/rust.git
synced 2026-04-28 03:07:24 +03:00
bors
db3e99bbab
skip codegen for intrinsics with big fallback bodies if backend does not need them This hopefully fixes the perf regression from https://github.com/rust-lang/rust/pull/148478. I only added the intrinsics with big fallback bodies to the list; it doesn't seem worth the effort of going through the entire list. Fixes https://github.com/rust-lang/rust/issues/149945 Cc @scottmcm @bjorn3
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.