* config.gcc (i[34567]86-*-*, x86_64-*-*): Add popcntintrin.h.
	* config/i386/abmintrin.h (_mm_popcnt_u32, _mm_popcnt_u64): Moved...
	* config/i386/i386-c.c (__POPCNT__): Defined.
	* config/i386/popcntintrin.h: ...here.  New file.
	* config/i386/smmintrin.h (_mm_popcnt_u32, _mm_popcnt_u64): Moved...
	Include popcntintrin.h.
	* config/i386/x86intrin.h: Include popcntintrin.h when __POPCNT__
	is defined.

From-SVN: r155058