Stream: git-wasmtime

Topic: wasmtime / PR #5857 riscv64: Fix regaloc panic with `bor`...

Wasmtime GitHub notifications bot (Feb 22 2023 at 21:26):

afonso360 opened PR #5857 from riscv64-fix-orn-regalloc to main:

:wave: Hey,

With zbb enabled we were optimizing bor+bnot into the orn instruction. We were accidentally also enabling this operation for floats without first moving the float to an integer register. This caused a regalloc error since we can't use those instructions directly on floats.

I've also tried to restrict the matches for some other rules that could probably suffer the same issue. Though the fuzzer hasn't complained about those yet.

Last updated: Dec 06 2025 at 06:05 UTC