RISC-V: Add testcases for AVL=REG support

RISC-V: Add testcases for AVL=REG support

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/rvv/vsetvl/avl_single-2.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-20.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-21.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-22.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-23.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-24.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-25.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-26.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-27.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-28.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-29.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-3.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-30.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-31.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-32.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-33.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-34.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-35.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-36.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-37.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-38.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-39.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-4.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-40.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-41.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-42.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-43.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-44.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-45.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-46.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-47.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-48.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-49.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-5.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-50.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-51.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-52.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-53.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-54.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-55.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-56.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-57.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-58.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-59.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-6.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-60.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-61.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-62.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-63.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-64.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-65.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-66.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-67.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-68.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-69.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-1.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-10.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-11.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-12.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-13.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-14.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-15.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-16.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-17.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-18.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-19.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-7.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-70.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-71.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-8.c: New test.
	* gcc.target/riscv/rvv/vsetvl/avl_single-9.c: New test.