arm: [MVE intrinsics] rework vctp

arm: [MVE intrinsics] rework vctp

Implement vctp using the new MVE builtins framework.

2024-08-21  Christophe Lyon  <christophe.lyon@linaro.org>

gcc/ChangeLog:

	* config/arm/arm-mve-builtins-base.cc (class vctpq_impl): New.
	(vctp16q): New.
	(vctp32q): New.
	(vctp64q): New.
	(vctp8q): New.
	* config/arm/arm-mve-builtins-base.def (vctp16q): New.
	(vctp32q): New.
	(vctp64q): New.
	(vctp8q): New.
	* config/arm/arm-mve-builtins-base.h (vctp16q): New.
	(vctp32q): New.
	(vctp64q): New.
	(vctp8q): New.
	* config/arm/arm-mve-builtins-shapes.cc (vctp): New.
	* config/arm/arm-mve-builtins-shapes.h (vctp): New.
	* config/arm/arm-mve-builtins.cc
	(function_instance::has_inactive_argument): Add support for vctp.
	* config/arm/arm_mve.h (vctp16q): Delete.
	(vctp32q): Delete.
	(vctp64q): Delete.
	(vctp8q): Delete.
	(vctp8q_m): Delete.
	(vctp64q_m): Delete.
	(vctp32q_m): Delete.
	(vctp16q_m): Delete.
	(__arm_vctp16q): Delete.
	(__arm_vctp32q): Delete.
	(__arm_vctp64q): Delete.
	(__arm_vctp8q): Delete.
	(__arm_vctp8q_m): Delete.
	(__arm_vctp64q_m): Delete.
	(__arm_vctp32q_m): Delete.
	(__arm_vctp16q_m): Delete.
	* config/arm/mve.md (mve_vctp<MVE_vctp>q<MVE_vpred>): Add '@'
	prefix.
	(mve_vctp<MVE_vctp>q_m<MVE_vpred>): Likewise.