rust/compiler/rustc_codegen_ssa at 21982a4383a92ec00ec11204584b86f3f17c92ef - rust

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T

bors 503e129328 Auto merge of #118568 - DianQK:no-builtins-symbols, r=pnkfelix

Avoid adding builtin functions to `symbols.o`

We found performance regressions in #113923. The problem seems to be that `--gc-sections` does not remove these symbols. I tested that lld removes these symbols, but ld and gold do not.

I found that `used` adds symbols to `symbols.o` at https://github.com/rust-lang/rust/blob/3e202ead604be31f4c1a5798a296953d3159da7e/compiler/rustc_codegen_ssa/src/back/linker.rs#L1786-L1791.
The PR removes builtin functions.

Note that under LTO, ld still preserves these symbols. (lld will still remove them.)

The first commit also fixes #118559. But I think the second commit also makes sense.

2023-12-07 20:31:55 +00:00

src

Auto merge of #118568 - DianQK:no-builtins-symbols, r=pnkfelix

2023-12-07 20:31:55 +00:00

Cargo.toml

jobserver: check file descriptors

2023-11-29 18:00:03 +03:00

messages.ftl

Remove cgu_reuse_tracker from Session

2023-10-09 18:39:41 +00:00

README.md

mv compiler to compiler/

2020-08-30 18:45:07 +03:00

README.md

Please read the rustc-dev-guide chapter on Backend Agnostic Codegen.