[all-commits] [llvm/llvm-project] 73aa4e: [RISCV] Use listconcat to shorten some of the prof...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 73aa4e4b3ec69480cc3981ab3eda091fc95f30cf
      https://github.com/llvm/llvm-project/commit/73aa4e4b3ec69480cc3981ab3eda091fc95f30cf
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2024-08-08 (Thu, 08 Aug 2024)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVProfiles.td

  Log Message:
  -----------
  [RISCV] Use listconcat to shorten some of the profile feature lists. (#102356)

The profiles in a family gain more features overtime so each year can
mostly inherit from the previous year.

I did make an exception for Za128rs becoming Za64rs in RVA22.
Technically Za64rs is a stricter requirement than Za128rs so it would be
ok to have both, but I didn't want to change existing ISA strings.

I used RVA20U64BaseFeatures as the base for RVB23U64 to shorten its list
a bit. RVB23 is the first year for that family and was created as a
reaction to too many features being added to RVA so inheriting from an
earlier RVA seemed somewhat reasonable to me.



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