[PATCH] D75168: [sanitizer][RISCV] Implement SignalContext::GetWriteFlag for RISC-V

[Alex Bradbury via Phabricator via llvm-commits]

asb added a comment.

There are some cases where you need to perform more checking in order to be future proof for possible new standard extensions. Specifically, review the RVC Instruction Set Listings in the RISC-V spec and check for where an encoding is marked as "RES" (reserved). e.g. C.LWSP is valid only if rd!=0, and the version with rd=0 is a reserved encoding. Similar with C.LDSP. I think it's just those two.


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https://reviews.llvm.org/D75168