backport: re PR target/79568 (ICE in extract_insn, at recog.c:2311 for pr70325.c...

backport: re PR target/79568 (ICE in extract_insn, at recog.c:2311 for pr70325.c (with -mavx512bw))

	Backported from mainline
	2017-02-20  Jakub Jelinek  <jakub@redhat.com>

	PR target/79568
	* config/i386/i386.c (ix86_expand_builtin): Handle
	OPTION_MASK_ISA_AVX512VL and OPTION_MASK_ISA_64BIT in
	ix86_builtins_isa[fcode].isa as a requirement of those
	flags and any other flag in the bitmask.
	(ix86_init_mmx_sse_builtins): Use 0 instead of
	~OPTION_MASK_ISA_64BIT as mask.
	* config/i386/i386-builtin.def (bdesc_special_args,
	bdesc_args): Likewise.

	* gcc.target/i386/pr79568-1.c: New test.
	* gcc.target/i386/pr79568-2.c: New test.
	* gcc.target/i386/pr79568-3.c: New test.

From-SVN: r248645