RISC-V: Allocate "various" operand type

This commit intends to move operands that require very special handling or
operand types that are so minor (e.g. only useful on a few instructions)
under "W".  I also intend this "W" to be "temporary" operand storage until
we can find good two character (or less) operand type.

In this commit, prefetch offset operand "f" for 'Zicbop' extension is moved
to "Wif" because of its special handling (and allocating single character
"f" for this operand type seemed too much).

Current expected allocation guideline is as follows:

1.  'W'
2.  The most closely related single-letter extension in lowercase
    (strongly recommended but not mandatory)
3.  Identify operand type

The author currently plans to allocate following three-character operand
types (for operands including instructions from unratified extensions).

1.  "Wif" ('Zicbop': fetch offset)
2.  "Wfv" (unratified 'Zfa': value operand from FLI.[HSDQ] instructions)
3.  "Wfm" / "WfM"
    'Zfh', 'F', 'D', 'Q': rounding modes "m" with special handling
                          solely for widening conversion instructions.

gas/ChangeLog:

	* config/tc-riscv.c (validate_riscv_insn, riscv_ip): Move from
	"f" to "Wif".

opcodes/ChangeLog:

	* riscv-dis.c (print_insn_args): Move from "f" to "Wif".
	* riscv-opc.c (riscv_opcodes): Reflect new operand type.

0 files changed, 0 insertions, 0 deletions