Remove u8 cttz hack #56855
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Remove u8 cttz hack #56855
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This issue has since been fixed in LLVM: llvm-mirror/llvm@1886c8e Furthermore this doesn't actually work, because the "8" literal does not match the $BITS provided from the macro invocation, so effectively this code was not being used anyway...
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Remove u8 cttz hack This issue has since been fixed in LLVM: llvm-mirror/llvm@1886c8e Furthermore this code doesn't actually work, because the 8 literal does not match the $BITS provided from the macro invocation, so effectively this was just dead code. Ref rust-lang#43024. What LLVM does is still not ideal for CPUs that only have bsf but not tzcnt, will create a patch for that later. r? @nagisa
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Rollup of 20 pull requests Successful merges: - #53506 (Documentation for impl From for AtomicBool and other Atomic types) - #56343 (Remove not used mod) - #56439 (Clearer error message for dead assign) - #56640 (Add FreeBSD unsigned char platforms to std::os::raw) - #56648 (Fix BTreeMap UB) - #56672 (Document time of back operations of a Linked List) - #56706 (Make `const unsafe fn` bodies `unsafe`) - #56742 (infer: remove Box from a returned Iterator) - #56761 (Suggest using `.display()` when trying to print a `Path`) - #56781 (Update LLVM submodule) - #56789 (rustc: Add an unstable `simd_select_bitmask` intrinsic) - #56790 (Make RValue::Discriminant a normal Shallow read) - #56793 (rustdoc: look for comments when scraping attributes/crates from doctests) - #56826 (rustc: Add the `cmpxchg16b` target feature on x86/x86_64) - #56832 (std: Use `rustc_demangle` from crates.io) - #56844 (Improve CSS rule) - #56850 (Fixed issue with using `Self` ctor in typedefs) - #56855 (Remove u8 cttz hack) - #56857 (Fix a small mistake regarding NaNs in a deprecation message) - #56858 (Fix doc of `std::fs::canonicalize`) Failed merges: - #56741 (treat ref-to-raw cast like a reborrow: do a special kind of retag) r? @ghost
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This issue has since been fixed in LLVM: llvm-mirror/llvm@1886c8e
Furthermore this code doesn't actually work, because the 8 literal does not match the $BITS provided from the macro invocation, so effectively this was just dead code. Ref #43024.
What LLVM does is still not ideal for CPUs that only have bsf but not tzcnt, will create a patch for that later.
r? @nagisa