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Re: Mathinlines and GCC
On Wed, 2 May 2012, Andreas Jaeger wrote:
> One more question: why do we explicitely call the builtin via an inline
> instead of letting gcc do this?
> here's an example from the i386 header:
> #if __GNUC_PREREQ (3, 4)
> __inline_mathcodeNP2_ (long double, __atan2l, __y, __x,
> return __builtin_atan2l (__y, __x))
Since this refers to __atan2l, maybe it's about mapping __atan2l to the
built-in function (whereas GCC would only do that for atan2l, not
__atan2l)? Though that's hardly relevant unless __atan2l is used in other
inlines or within glibc.
Joseph S. Myers