[PATCH v2 00/16] RISC-V: assorted fixes and (hopefully) improvements

[Jan Beulich]

On 15.05.2026 15:27, Jan Beulich wrote:
> There may not be many dependencies among the patches, but the issues
> were all noticed more or less together (i.e. while addressing one,
> the next one popped up). I've not made an attempt at sorting the V vs
> Z?inx issue, as per Andrew's request.
> 
> Quite a few further points are made in remarks in individual patches.
> Input there is very welcome.
> 
> Jiawei kindly reviewed v1, and I committed a few patches from there
> which I assumed were pretty sure to be uncontroversial. For the others
> I'd prefer RISC-V maintainer approval, yet I'm not going to wait
> indefinitely.
> 
> There aren't many changes in v2, the most prominent perhaps being the
> new 1st patch. See individual changes for what changed, if anything.
> 
> 01: rename operand descriptor O4
> 02: RISC-V: fold redundant code in riscv_ip()
> 03: RISC-V: add dedicated vector arithmetic .insn forms
> 04: RISC-V: match_*() improvements
> 05: RISC-V: EEW64 checking
> 06: bfd/RISC-V: Zvfbfwma implies Zvfbfmin
> 07: RISC-V: drop FCVT.Q.L{,U} forms with rounding mode operand
> 08: RISC-V: make FP rounding mode an optional argument
> 09: RISC-V: check operands for Zdinx in RV32
> 10: RISC-V: riscv_set_arch() can fail
> 11: RISC-V: riscv_parse_subset_t's isa_spec is only parser input
> 12: RISC-V: error handling for subset parsing
> 13: RISC-V: avoid buffer underrun in subset parsing
> 14: RISC-V: drop dead code from subset parsing
> 15: bfd/RISC-V: move _bfd_riscv_elf_merge_private_bfd_data()
> 16: RISC-V/gas: .attribute vs .insn

And some follow-on-s to observations noted in some of the above:

17: warn about non-boolean unaligned-access attribute
18: warn about non-power-of-2 stack-align attribute
19: check operands for Zqinx

Jan