Method visit_ref_is_null

winch/codegen/src/visitor.rs:2137–2147

(&mut self)

    }

    fn visit_ref_is_null(&mut self) -> Self::Output {
        let (zero, size) = match self.env.ptr_type() {
            WasmValType::I64 => (RegImm::i64(0), OperandSize::S64),
            WasmValType::I32 => (RegImm::i32(0), OperandSize::S32),
            _ => bail!(CodeGenError::unsupported_wasm_type()),
        };
        self.context.unop(self.masm, |masm, reg| {
            masm.cmp_with_set(writable!(reg), zero, IntCmpKind::Eq, size)?;
            Ok(TypedReg::i32(reg))
        })
    }

    fn visit_ref_func(&mut self, function_index: u32) -> Self::Output {
        let ref_func = self.env.builtins.ref_func::<M::ABI>()?;