RS6000, add VSX mask manipulation support

RS6000, add VSX mask manipulation support

gcc/ChangeLog

2020-07-09  Carl Love  <cel@us.ibm.com>

	* config/rs6000/vsx.md  (VSX_MM): New define_mode_iterator.
	(VSX_MM4): New define_mode_iterator.
	(vec_mtvsrbmi): New define_insn.
	(vec_mtvsr_<mode>): New define_insn.
	(vec_cntmb_<mode>): New define_insn.
	(vec_extract_<mode>): New define_insn.
	(vec_expand_<mode>): New define_insn.
	(define_c_enum unspec): Add entries UNSPEC_MTVSBM, UNSPEC_VCNTMB,
	UNSPEC_VEXTRACT, UNSPEC_VEXPAND.
	* config/rs6000/altivec.h ( vec_genbm, vec_genhm, vec_genwm,
	vec_gendm, vec_genqm, vec_cntm, vec_expandm, vec_extractm): Add
	defines.
	* config/rs6000/rs6000-builtin.def: Add defines BU_P10_2, BU_P10_1.
	(BU_P10_1): Add definitions for mtvsrbm, mtvsrhm, mtvsrwm,
	mtvsrdm, mtvsrqm, vexpandmb, vexpandmh, vexpandmw, vexpandmd,
	vexpandmq, vextractmb, vextractmh, vextractmw, vextractmd, vextractmq.
	(BU_P10_2): Add definitions for cntmbb, cntmbh, cntmbw, cntmbd.
	(BU_P10_OVERLOAD_1): Add definitions for mtvsrbm, mtvsrhm,
	mtvsrwm, mtvsrdm, mtvsrqm, vexpandm, vextractm.
	(BU_P10_OVERLOAD_2): Add defition for cntm.
	* config/rs6000/rs6000-call.c (rs6000_expand_binop_builtin): Add
	checks for CODE_FOR_vec_cntmbb_v16qi, CODE_FOR_vec_cntmb_v8hi,
	CODE_FOR_vec_cntmb_v4si, CODE_FOR_vec_cntmb_v2di.
	(altivec_overloaded_builtins): Add overloaded argument entries for
	P10_BUILTIN_VEC_MTVSRBM, P10_BUILTIN_VEC_MTVSRHM,
	P10_BUILTIN_VEC_MTVSRWM, P10_BUILTIN_VEC_MTVSRDM,
	P10_BUILTIN_VEC_MTVSRQM, P10_BUILTIN_VEC_VCNTMBB,
	P10_BUILTIN_VCNTMBB, P10_BUILTIN_VCNTMBH,
	P10_BUILTIN_VCNTMBW, P10_BUILTIN_VCNTMBD,
	P10_BUILTIN_VEXPANDMB, P10_BUILTIN_VEXPANDMH,
	P10_BUILTIN_VEXPANDMW, P10_BUILTIN_VEXPANDMD,
	P10_BUILTIN_VEXPANDMQ, P10_BUILTIN_VEXTRACTMB,
	P10_BUILTIN_VEXTRACTMH, P10_BUILTIN_VEXTRACTMW,
	P10_BUILTIN_VEXTRACTMD, P10_BUILTIN_VEXTRACTMQ.
	(builtin_function_type): Add case entries for P10_BUILTIN_MTVSRBM,
	P10_BUILTIN_MTVSRHM, P10_BUILTIN_MTVSRWM, P10_BUILTIN_MTVSRDM,
	P10_BUILTIN_MTVSRQM, P10_BUILTIN_VCNTMBB, P10_BUILTIN_VCNTMBH,
	P10_BUILTIN_VCNTMBW, P10_BUILTIN_VCNTMBD,
	P10_BUILTIN_VEXPANDMB, P10_BUILTIN_VEXPANDMH,
	P10_BUILTIN_VEXPANDMW, P10_BUILTIN_VEXPANDMD,
	P10_BUILTIN_VEXPANDMQ.
	* config/rs6000/rs6000-builtin.def (altivec_overloaded_builtins): Add
	entries	for MTVSRBM, MTVSRHM, MTVSRWM, MTVSRDM, MTVSRQM, VCNTM,
	VEXPANDM, VEXTRACTM.

gcc/testsuite/ChangeLog

2020-07-09  Carl Love  <cel@us.ibm.com>
	* gcc.target/powerpc/vsx_mask-count-runnable.c: New test case.
	* gcc.target/powerpc/vsx_mask-expand-runnable.c: New test case.
	* gcc.target/powerpc/vsx_mask-extract-runnable.c: New test case.
	* gcc.target/powerpc/vsx_mask-move-runnable.c: New test case.