Upgrade to LLVM 15, support Apple M1. #1264
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I believe this is ready for review now. @dougalm
Let me know if I should do anything else! |
- Upgrade to GHC 9.2.x.
- Apple M1 support seems to be mostly mature starting in GHC 9.2.1:
https://www.haskell.org/ghc/blog/20210309-apple-m1-story.html.
- Upgrade to LLVM 15.
- Use the same resolver in stack*.yaml files as llvm-hs:llvm-15 for
consistency.
`make` now works on Apple M1, albeit with compiler warnings, some of which seem
significant.
Fix warnings, namely -Wstar-is-type. Many -Wincomplete-uni-patterns warnings are not yet fixed.
`diff` on macOS does not support the `--left-column` flag. Use `sdiff` (side-by-side diff) instead, which is part of diffutils.
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Fix all warnings except `-Wincomplete-uni-patterns` and `-Wincomplete-record-updates`, which were newly added to `-Wall` (starting in GHC 9.2.1). https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0071-Wall-uni-patterns.rst
…d-updates`. These were newly added to `-Wall` starting GHC 9.2.1. https://ghc-proposals.readthedocs.io/en/latest/proposals/0071-Wall-uni-patterns.html
- Update `llvm.memcpy` and `llvm.memset` intrinsic name mangling to use `p0` instead of `p0i8` as the pointer type. - https://releases.llvm.org/15.0.0/docs/LangRef.html#llvm-memcpy-intrinsic - Update expected numerical values in various tests. - Mark and disable failing tests with `FIXME(llvm-15)`.
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Main changes:
stack*.yamlfiles as llvm-hs:llvm-15, for consistency.Status: work-in-progress.
makenow works on Apple M1.make unit-testspasses.-Wincomplete-uni-patternswarnings because-Wincomplete-uni-patternswas added to-Wallin GHC 9.2.1 (source).make testspasses.Fixes #1247.