rust/rustc_codegen_llvm at aa2a0a83d9aa241bbce62797b1c2140c79389ef5 - rust

History

bors c42d846add Auto merge of #94229 - erikdesjardins:rem2, r=nikic Remove LLVM attribute removal This was necessary before, because `declare_raw_fn` would always apply the default optimization attributes to every declared function. Then `attributes::from_fn_attrs` would have to remove the default attributes in the case of, e.g. `#[optimize(speed)]` in a `-Os` build. (see [`src/test/codegen/optimize-attr-1.rs`](`03a8cc7df1/src/test/codegen/optimize-attr-1.rs (L33)`)) However, every relevant callsite of `declare_raw_fn` (i.e. where we actually generate code for the function, and not e.g. a call to an intrinsic, where optimization attributes don't [?] matter) calls `from_fn_attrs`, so we can remove the attribute setting from `declare_raw_fn`, and rely on `from_fn_attrs` to apply the correct attributes all at once. r? `@ghost` (blocked on #94221) `@rustbot` label S-blocked		2022-03-02 08:48:33 +00:00
..
src	Auto merge of #94229 - erikdesjardins:rem2, r=nikic	2022-03-02 08:48:33 +00:00
Cargo.toml	debuginfo: Simplify TypeMap used during LLVM debuginfo generation.	2022-02-21 13:03:36 +01:00
README.md

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.