RISC-V: Extract vec_series for expand_const_vector [NFC]

Consider the expand_const_vector is quit long (about 500 lines)
and complicated, we would like to extract the different case
into different functions.  For example, the const vec_series
will be extracted into expand_const_vec_series.

The below test suites are passed for this patch.
* The rv64gcv fully regression test.

gcc/ChangeLog:

	* config/riscv/riscv-v.cc (expand_const_vec_series): Add new
	func to take care of the const vec_series.
	(expand_const_vector): Extract const vec_series into separated
	function.

Signed-off-by: Pan Li <pan2.li@intel.com>

0 files changed, 0 insertions, 0 deletions