Enable VAES support [3/5]

Enable VAES support [3/5]

gcc/
	* config/i386/i386-builtin.def (__builtin_ia32_vaesdeclast_v16qi,
	__builtin_ia32_vaesdeclast_v32qi, __builtin_ia32_vaesdeclast_v64qi): New.
	* config/i386/sse.md (vaesdeclast_<mode>): New pattern.
	* config/i386/vaesintrin.h (_mm256_aesdeclast_epi128,
	_mm512_aesdeclast_epi128, _mm_aesdeclast_epi128): New intrinsics.

gcc/testsuite/
	* gcc.target/i386/avx512f-aesdeclast-2.c: New test.
	* gcc.target/i386/avx512vl-aesdeclast-2.c
	* gcc.target/i386/avx512fvl-vaes-1.c: Handle new intrinsics.

From-SVN: r255674