As reported by @caizixian, when running on riscv64-linux-gnu, C2 will raise an assertion error when compiling write-barrier code. This error can still be reproduced on OpenJDK 21.
One workaround is removing the slot and target arguments of the MMTkBarrierSetRuntime::object_reference_write_slow_call(src, slot, target) function, leaving the src argument alone. While this is sufficient for the ObjectBarrier, it is not a general solution.
As reported by @caizixian, when running on riscv64-linux-gnu, C2 will raise an assertion error when compiling write-barrier code. This error can still be reproduced on OpenJDK 21.
One workaround is removing the
slotandtargetarguments of theMMTkBarrierSetRuntime::object_reference_write_slow_call(src, slot, target)function, leaving thesrcargument alone. While this is sufficient for the ObjectBarrier, it is not a general solution.