[PATCH 0/2] RISC-V: Opcode Tidying - Operands (batch 1)
Sun Aug 7 08:00:20 GMT 2022
This is a small patchset to clean / maintain RISC-V instruction operand types.
Since `validate_riscv_insn' function lists three macro-only operand types, this
patch adds other three operands. That means, `validate_riscv_insn' lists all
macro-only operand types with this patch.
New in This Patch:
Note that `validate_riscv_insn' is called only for non-macros. In the future,
we could reject (and make an internal error) when we encountered those macro-
only operand types on regular (non-macro) instructions.
The operand type "b" has no good reasons to keep and should be removed.
- It looks like an alias of the "s" operand type.
- It hasn't used since the beginning.
- Its role is not clear.
On the other hand, this patch keeps following unused operand types for now:
- Cx : future compressed instructions?
- Vf, Ve : vector AMO instructions (instructions are not upstreamed
but operand types are upstreamed already)
- [, ] : used by some vendors? At least, their role is clear.
Tsukasa OI (2):
RISC-V: Add macro-only operands to validate_riscv_insn
RISC-V: remove "b" operand type from disassembler
gas/config/tc-riscv.c | 3 +++
opcodes/riscv-dis.c | 1 -
2 files changed, 3 insertions(+), 1 deletion(-)
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