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llvm / llvm-project / 35cce408eef1a253df12c0023c993d78b180b1f3
commit35cce408eef1a253df12c0023c993d78b180b1f3[log] [tgz]
authorDan Gohman <dev@sunfishcode.online>Tue Dec 03 16:35:23 2024 -0800
committerGitHub <noreply@github.com>Tue Dec 03 16:35:23 2024 -0800
tree4b9d7fae673d3ab1dada89038cebdbe8d5f525a9
parente9dc6c5fbb6d2c2c93095acb6ff4ca0b515057ed [diff]
[WebAssembly] Support the new "Lime1" CPU (#112035)

This adds WebAssembly support for the new [Lime1 CPU].

First, this defines some new target features. These are subsets of
existing
features that reflect implementation concerns:

- "call-indirect-overlong" - implied by "reference-types"; just the
overlong
encoding for the `call_indirect` immediate, and not the actual reference
   types.

 - "bulk-memory-opt" - implied by "bulk-memory": just `memory.copy` and
   `memory.fill`, and not the other instructions in the bulk-memory
    proposal.

Next, this defines a new target CPU, "lime1", which enables
mutable-globals,
bulk-memory-opt, multivalue, sign-ext, nontrapping-fptoint,
extended-const,
and call-indirect-overlong. Unlike the default "generic" CPU, "lime1" is
meant
to be frozen, and followed up by "lime2" and so on when new features are
desired.

[Lime1 CPU]:
https://github.com/WebAssembly/tool-conventions/blob/main/Lime.md#lime1

---------

Co-authored-by: Heejin Ahn <aheejin@gmail.com>
5 files changed
tree: 4b9d7fae673d3ab1dada89038cebdbe8d5f525a9
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. libc/
  11. libclc/
  12. libcxx/
  13. libcxxabi/
  14. libunwind/
  15. lld/
  16. lldb/
  17. llvm/
  18. llvm-libgcc/
  19. mlir/
  20. offload/
  21. openmp/
  22. polly/
  23. pstl/
  24. runtimes/
  25. third-party/
  26. utils/
  27. .clang-format
  28. .clang-tidy
  29. .git-blame-ignore-revs
  30. .gitattributes
  31. .gitignore
  32. .mailmap
  33. 0001-Reland-Add-a-pass-to-collect-dropped-var-stats-for-M.patch
  34. 0001-Reland-NFC-Move-DroppedVariableStats-to-its-own-file.patch
  35. CODE_OF_CONDUCT.md
  36. CONTRIBUTING.md
  37. LICENSE.TXT
  38. pyproject.toml
  39. README.md
  40. SECURITY.md
README.md

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