pulehui wrote: > The `r1` would be zero extended, while to be ABI conformant it has to be sign > extended, as for RV64 the 31-st bit should be the same as upper 32 bits. The > fact that decision to zero or sign extend the argument depends on the > architecture means that this extension has to be done at JIT time (meaning > that BTF is mandatory) or be a part of kfunc.
Thanks for the clarification. riscv64 will do sign-extension both for int and uint. For uint, zero-extension is required, but after my investigation, it will be handled in the callee. https://github.com/llvm/llvm-project/pull/84874 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
