rust/compiler/rustc_codegen_llvm
bors e423058751 Auto merge of #82980 - tmiasko:import-cold-multiplier, r=michaelwoerister
Import small cold functions

The Rust code is often written under an assumption that for generic
methods inline attribute is mostly unnecessary, since for optimized
builds using ThinLTO, a method will be code generated in at least one
CGU and available for import.

For example, deref implementations for Box, Vec, MutexGuard, and
MutexGuard are not currently marked as inline, neither is identity
implementation of From trait.

In PGO builds, when functions are determined to be cold, the default
multiplier of zero will stop the import, no matter how trivial the
implementation.

Increase slightly the default multiplier from 0 to 0.1.

r? `@ghost`
2021-03-26 11:57:44 +00:00
..
src Auto merge of #82980 - tmiasko:import-cold-multiplier, r=michaelwoerister 2021-03-26 11:57:44 +00:00
Cargo.toml Rollup merge of #82537 - wesleywiser:update_measureme, r=oli-obk 2021-02-27 21:56:20 +01:00
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.