[PATCH][GCC 8] AArch64: Update Armv8.4-a's FP16 FML intrinsics

[Kyrylo Tkachov]

Hi all,

I'd like to backport this fix from Tamar to the GCC 8 branch to avoid having incorrectly-named intrinsics.
Tested on aarch64-none-elf.

Committing to the branch.

This patch updates the Armv8.4-a FP16 FML intrinsics's suffixes from u32 to f16
to be more consistent with the naming convention for intrinsics.

The specifications for these intrinsics have not been published yet so we do
not need to maintain the old names.

The patch was created with the following script:

grep -lIE "(vfml[as].+)_u32" -r gcc/ | grep -iEv ".+Changelog.*" \
  | xargs sed -i -E -e "s/(vfml[as].+)_u32/\1_f16/g"

gcc/
	PR target/71233
	* config/aarch64/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
	vfmlalq_low_u32, vfmlslq_low_u32, vfmlal_high_u32, vfmlsl_high_u32,
	vfmlalq_high_u32, vfmlslq_high_u32, vfmlal_lane_low_u32,
	vfmlsl_lane_low_u32, vfmlal_laneq_low_u32, vfmlsl_laneq_low_u32,
	vfmlalq_lane_low_u32, vfmlslq_lane_low_u32, vfmlalq_laneq_low_u32,
	vfmlslq_laneq_low_u32, vfmlal_lane_high_u32, vfmlsl_lane_high_u32,
	vfmlal_laneq_high_u32, vfmlsl_laneq_high_u32, vfmlalq_lane_high_u32,
	vfmlslq_lane_high_u32, vfmlalq_laneq_high_u32, vfmlslq_laneq_high_u32):
	Rename ...
	(vfmlal_low_f16, vfmlsl_low_f16, vfmlalq_low_f16, vfmlslq_low_f16,
	vfmlal_high_f16, vfmlsl_high_f16, vfmlalq_high_f16, vfmlslq_high_f16,
	vfmlal_lane_low_f16, vfmlsl_lane_low_f16, vfmlal_laneq_low_f16,
	vfmlsl_laneq_low_f16, vfmlalq_lane_low_f16, vfmlslq_lane_low_f16,
	vfmlalq_laneq_low_f16, vfmlslq_laneq_low_f16, vfmlal_lane_high_f16,
	vfmlsl_lane_high_f16, vfmlal_laneq_high_f16, vfmlsl_laneq_high_f16,
	vfmlalq_lane_high_f16, vfmlslq_lane_high_f16, vfmlalq_laneq_high_f16,
	vfmlslq_laneq_high_f16): ... To this.

gcc/testsuite/
	PR target/71233
	* gcc.target/aarch64/fp16_fmul_high.h (test_vfmlal_high_u32,
	test_vfmlalq_high_u32, test_vfmlsl_high_u32, test_vfmlslq_high_u32):
	Rename ...
	(test_vfmlal_high_f16, test_vfmlalq_high_f16, test_vfmlsl_high_f16,
	test_vfmlslq_high_f16): ... To this.
	* gcc.target/aarch64/fp16_fmul_lane_high.h (test_vfmlal_lane_high_u32,
	tets_vfmlsl_lane_high_u32, test_vfmlal_laneq_high_u32,
	test_vfmlsl_laneq_high_u32, test_vfmlalq_lane_high_u32,
	test_vfmlslq_lane_high_u32, test_vfmlalq_laneq_high_u32,
	test_vfmlslq_laneq_high_u32): Rename ...
	(test_vfmlal_lane_high_f16, tets_vfmlsl_lane_high_f16,
	test_vfmlal_laneq_high_f16, test_vfmlsl_laneq_high_f16,
	test_vfmlalq_lane_high_f16, test_vfmlslq_lane_high_f16,
	test_vfmlalq_laneq_high_f16, test_vfmlslq_laneq_high_f16): ... To this.
	* gcc.target/aarch64/fp16_fmul_lane_low.h (test_vfmlal_lane_low_u32,
	test_vfmlsl_lane_low_u32, test_vfmlal_laneq_low_u32,
	test_vfmlsl_laneq_low_u32, test_vfmlalq_lane_low_u32,
	test_vfmlslq_lane_low_u32, test_vfmlalq_laneq_low_u32,
	test_vfmlslq_laneq_low_u32): Rename ...
	(test_vfmlal_lane_low_f16, test_vfmlsl_lane_low_f16,
	test_vfmlal_laneq_low_f16, test_vfmlsl_laneq_low_f16,
	test_vfmlalq_lane_low_f16, test_vfmlslq_lane_low_f16,
	test_vfmlalq_laneq_low_f16, test_vfmlslq_laneq_low_f16): ... To this.
	* gcc.target/aarch64/fp16_fmul_low.h (test_vfmlal_low_u32,
	test_vfmlalq_low_u32, test_vfmlsl_low_u32, test_vfmlslq_low_u32):
	Rename ...
	(test_vfmlal_low_f16, test_vfmlalq_low_f16, test_vfmlsl_low_f16,
	test_vfmlslq_low_f16): ... To This.
	* lib/target-supports.exp
	(check_effective_target_arm_fp16fml_neon_ok_nocache): Update test.

(cherry picked from commit 9d04c986b6faed878dbcc86d2f9392a721a3936e)
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