aarch64: Add fpm register helper functions.

The ACLE declares several helper types and functions to facilitate construction
of `fpm` arguments. These are available when one of the arm_neon.h, arm_sve.h,
or arm_sme.h headers is included. These helpers don't map to specific FP8
instructions and there's no expectation that they will produce a given code
sequence, they're just an abstraction and an aid to the programmer. Thus they are
implemented in a new header file arm_private_fp8.h
Users are not expected to include this file, as it is a mere implementation detail,
subject to change. A check is included to guard against direct inclusion.

gcc/ChangeLog:

	* config.gcc (extra_headers): Install arm_private_fp8.h.
	* config/aarch64/arm_neon.h: Include arm_private_fp8.h.
	* config/aarch64/arm_sve.h: Likewise.
	* config/aarch64/arm_private_fp8.h: New file
	(fpm_t): New type representing fpmr values.
	(enum __ARM_FPM_FORMAT): New enum representing valid fp8 formats.
	(enum __ARM_FPM_OVERFLOW): New enum representing how some fp8
	calculations work.
	(__arm_fpm_init): New.
	(__arm_set_fpm_src1_format): Likewise.
	(__arm_set_fpm_src2_format): Likewise.
	(__arm_set_fpm_dst_format): Likewise.
	(__arm_set_fpm_overflow_cvt): Likewise.
	(__arm_set_fpm_overflow_mul): Likewise.
	(__arm_set_fpm_lscale): Likewise.
	(__arm_set_fpm_lscale2): Likewise.
	(__arm_set_fpm_nscale): Likewise.

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/acle/fp8-helpers-neon.c: New test of fpmr helper
	functions.
	* gcc.target/aarch64/acle/fp8-helpers-sve.c: New test of fpmr helper
	functions presence.
	* gcc.target/aarch64/acle/fp8-helpers-sme.c: New test of fpmr helper
	functions presence.

0 files changed, 0 insertions, 0 deletions