altivec.md (p8_vmrgow): Add support for V2DI, V2DF, V4SI, V4SF types.

altivec.md (p8_vmrgow): Add support for V2DI, V2DF, V4SI, V4SF types.

gcc/ChangeLog:

2018-01-09  Carl Love  <cel@us.ibm.com>

	* config/rs6002/altivec.md (p8_vmrgow): Add support for V2DI, V2DF,
	V4SI, V4SF types.
	(p8_vmrgew): Add support for V2DI, V2DF, V4SF types.
	* config/rs6000/rs6000-builtin.def: Add definitions for FLOAT2_V2DF,
	VMRGEW_V2DI, VMRGEW_V2DF, VMRGEW_V4SF, VMRGOW_V4SI, VMRGOW_V4SF,
	VMRGOW_V2DI, VMRGOW_V2DF.  Remove definition for VMRGOW.
	* config/rs6000/rs6000-c.c (VSX_BUILTIN_VEC_FLOAT2,
	P8V_BUILTIN_VEC_VMRGEW, P8V_BUILTIN_VEC_VMRGOW):  Add definitions.
	* config/rs6000/rs6000-protos.h: Add extern defition for
	rs6000_generate_float2_double_code.
	* config/rs6000/rs6000.c (rs6000_generate_float2_double_code): Add
	function.
	* config/rs6000/vsx.md (vsx_xvcdpsp): Add define_insn.
	(float2_v2df): Add define_expand.

gcc/testsuite/ChangeLog:

2017-01-09 Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/builtins-1.c (main): Add tests for vec_mergee and
	vec_mergeo builtins with float, double, long long, unsigned long long,
	bool long long  arguments.
	* gcc.target/powerpc/builtins-3-runnable.c (main): Add test for
	vec_float2 with double arguments.
	* gcc.target/powerpc/builtins-mergew-mergow.c: New runable test for the
	vec_mergew and vec_mergow builtins.

From-SVN: r256395