[PATCH 07/11] Add bitcount inlinesfor RTEMS. These are found in FREEBSDs types.h

[Sebastian Huber]

Hello Kevin,

I know it is considerable more work, but this should move into Newlib.

The

#ifdef __POPCNT__
#define	__bitcount64(x)	__builtin_popcountll((__uint64_t)(x))

needs GCC support. This __POPCNT__ is a clang feature. I don't know 
which version of GCC supports these builtins, but it should use also a 
__GNUC_PREREQ__(X, Y).

-- 
Sebastian Huber, embedded brains GmbH

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