[PATCH] D149246: [RISCV] Relax rules for ordering s/z/x prefixed extensions in ISA naming strings

[Kito Cheng via Phabricator via llvm-commits]

kito-cheng accepted this revision.
kito-cheng added a comment.

I am really happy to see this happen, binutils has relaxed for a while in more relaxed way[1] - only require must start with `rv[32|64][e|i|g]`, personally I would like to relax the order at all like binutils did for GCC, but I don't want to disturb that before making sure clang will going same way - otherwise just making more incomparable.

The order is kind of not friendly for user, I don't believe how many people remember the right order between `z*` extension in short time - even after read the RISC-V ISA spec.

[1] https://sourceware.org/pipermail/binutils/2022-December/125267.html


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