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    SubjectRe: using gcc built-ins for bitops?
    > Perhaps. It's not impossible that say gcc 3.5 will add a few more builtins
    > even that then allow more functions to be converted, otoh that shouldn't be
    > impossible to cope with. I'll have a look to see how it pans out.

    You could have an asm-generic/bitops-builtin.h and arch's could #include
    that after defining all the HAVE_BUILTIN_xxx macros they want. I suspect
    not all architectures will get the most correct built-ins (e.g. the arch
    may be able to optimize better than gcc's builtin is doing).

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