Re: [Xen-devel] [PATCH v2 for-next 2/2] x86/string: Use compiler __builtin_str*() where possible

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 12.05.17 at 17:30, <andrew.cooper3@xxxxxxxxxx> wrote:
> Given that all supported compilers have these builtins, I think it might
> be better to make this adjustment in common code.  The arguments for
> using them in x86 are the same as ARM.

Generally I agree. But Linux not having used them originally was
- iirc - because there were a few compiler bugs. This could be the
case namely on arm64, which isn't all that old (and hence mature)
yet. Otoh the compiler folks may also have learned from past
mistakes.

Jan


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