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rust / rust / 8e46521d0e0bf8eae09a30ac9aa1970cd9926b06
commit8e46521d0e0bf8eae09a30ac9aa1970cd9926b06[log] [tgz]
authorMatthias Krüger <476013+matthiaskrgr@users.noreply.github.com>Fri Dec 05 16:17:12 2025 +0100
committerGitHub <noreply@github.com>Fri Dec 05 16:17:12 2025 +0100
treef6f0523e45cda1529f7135613b43731e3adb9ccf
parent93249823c2286fe21c822b20494e857a33c4c775 [diff]
parent84ff44c74933374a941f0c8c49e8381d830c3193 [diff]
Rollup merge of #149666 - Zalathar:backend-has-zstd, r=jieyouxu

Add perma-unstable `--print=backend-has-zstd` for use by compiletest

Tests for `-Zdebuginfo-compression=zstd` need to be skipped if LLVM was built without support for zstd compression.

Currently, compiletest relies on messy and fragile heuristics to detect whether the compiler's LLVM was built with zstd support. But the compiler itself already knows whether LLVM has zstd or not, so it's easier for compiletest to just ask the compiler.

---

Originally I was intending for this to be a `--print=debuginfo-compression` flag that would print out a list of values supported by `-Zdebuginfo-compression=`. I got that working locally, but it was more complex than I was happy with (in both rustc and compiletest), so I decided to cut scope and instead add a very narrow perma-unstable print request instead.

There is always a circularity hazard whenever we ask the compiler-under-test for information about how to test it. But in this case, the underlying compiler code is fairly simple, whereas the previous heuristics were inherently messy and unreliable anyway.
tree: f6f0523e45cda1529f7135613b43731e3adb9ccf
  1. .github/
  2. compiler/
  3. library/
  4. LICENSES/
  5. src/
  6. tests/
  7. .clang-format
  8. .editorconfig
  9. .git-blame-ignore-revs
  10. .gitattributes
  11. .gitignore
  12. .gitmodules
  13. .ignore
  14. .mailmap
  15. bootstrap.example.toml
  16. Cargo.lock
  17. Cargo.toml
  18. CODE_OF_CONDUCT.md
  19. configure
  20. CONTRIBUTING.md
  21. COPYRIGHT
  22. INSTALL.md
  23. LICENSE-APACHE
  24. license-metadata.json
  25. LICENSE-MIT
  26. package.json
  27. README.md
  28. RELEASES.md
  29. REUSE.toml
  30. rust-bors.toml
  31. rustfmt.toml
  32. triagebot.toml
  33. typos.toml
  34. x
  35. x.ps1
  36. x.py
  37. yarn.lock
README.md

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This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.

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