Method cache_items

Tools/cases_generator/tier2_generator.py:192–207

(self, stack: Stack, cached_items: int, zero_regs: bool)

        return not always_true(first_tkn)

    def cache_items(self, stack: Stack, cached_items: int, zero_regs: bool) -> None:
        self.out.start_line()
        i = cached_items
        while i > 0:
            self.out.start_line()
            item = StackItem(f"_tos_cache{i-1}", "", False, True)
            stack.pop(item, self.out)
            i -= 1
        if zero_regs:
            # TO DO -- For compilers that support it,
            # replace this with a "clobber" to tell
            # the compiler that these values are unused
            # without having to emit any code.
            for i in range(cached_items, MAX_CACHED_REGISTER):
                self.out.emit(f"_tos_cache{i} = PyStackRef_ZERO_BITS;\n")
        self.emit(f"SET_CURRENT_CACHED_VALUES({cached_items});\n")


def write_uop(uop: Uop, emitter: Tier2Emitter, stack: Stack, cached_items: int = 0) -> tuple[bool, Stack]: