I noticed on a [recent build][1] that the linkchecker stage of CI took a
whopping 15 minutes of CI time for something that should be near
instantaneous. Some local profiling showed some very hot functions and
clones which were pretty easy to remove, and now instead of running in
minutes locally it runs in seconds.
[1]: https://ci.appveyor.com/project/rust-lang/rust/build/job/kptifw1kb1nm4xuu
It stop asserts and panics from libstd to automatically
include string output and formatting code.
Use case: developing static executables smaller than 50 kilobytes,
where usual formatting code is excessive while keeping debuggability
in debug mode.
May resolve#54981.
libcore: Add VaList and variadic arg handling intrinsics
## Summary
- Add intrinsics for `va_start`, `va_end`, `va_copy`, and `va_arg`.
- Add `core::va_list::VaList` to `libcore`.
Part 1 of (at least) 3 for #44930
Comments and critiques are very much welcomed 😄
Rollup of 22 pull requests
Successful merges:
- #55391 (bootstrap: clean up a few clippy findings)
- #56021 (avoid features_untracked)
- #56023 (atomic::Ordering: Get rid of misleading parts of intro)
- #56080 (Reduce the amount of bold text at doc.rlo)
- #56114 (Enclose type in backticks for "non-exhaustive patterns" error)
- #56124 (Fix small doc mistake on std::io::read::read_to_end)
- #56127 (Update an outdated comment in mir building)
- #56148 (Add rustc-guide as a submodule)
- #56149 (Make std::os::unix/linux::fs::MetadataExt::a/m/ctime* documentation clearer)
- #56220 (Suggest appropriate place for lifetime when declared after type arguments)
- #56223 (Make JSON output from -Zprofile-json valid)
- #56236 (Remove unsafe `unsafe` inner function.)
- #56255 (Update outdated code comments in StringReader)
- #56257 (rustc-guide has moved to rust-lang/)
- #56273 (Add missing doc link)
- #56289 (Fix small typo in comment of thread::stack_size)
- #56294 (Fix a typo in the documentation of std::ffi)
- #56312 (Deduplicate literal -> constant lowering)
- #56319 (fix futures creating aliasing mutable and shared ref)
- #56321 (rustdoc: add bottom margin spacing to nested lists)
- #56322 (resolve: Fix false-positives from lint `absolute_paths_not_starting_with_crate`)
- #56330 (Clean up span in non-trailing `..` suggestion)
Failed merges:
r? @ghost
