def add_block(decs: Decs, incs: Incs, cache: BlockCache,
blocks: List[BasicBlock], label: BasicBlock) -> BasicBlock:
if not decs and not incs:
return label
# TODO: be able to share *partial* results
if (label, decs, incs) in cache:
return cache[label, decs, incs]
block = BasicBlock()
blocks.append(block)
block.ops.extend(DecRef(reg, is_xdec=xdec) for reg, xdec in decs)
block.ops.extend(IncRef(reg) for reg in incs)
block.ops.append(Goto(label))
cache[label, decs, incs] = block
return block
def maybe_append_dec_ref(ops: List[Op], dest: Value,
defined: 'AnalysisDict[Value]', key: Tuple[BasicBlock, int]) -> None:
if dest.type.is_refcounted and not isinstance(dest, Integer):
ops.append(DecRef(dest, is_xdec=is_maybe_undefined(defined[key], dest)))
def test_dec_ref_tuple_nested(self) -> None:
self.assert_emit(DecRef(self.tt), 'CPyTagged_DecRef(cpy_r_tt.f0.f0);')
def test_dec_ref(self) -> None:
self.assert_emit(DecRef(self.m), "CPyTagged_DecRef(cpy_r_m);")
def test_dec_ref_tuple(self) -> None:
self.assert_emit(DecRef(self.t), 'CPyTagged_DECREF(cpy_r_t.f0);')
def test_dec_ref_int(self) -> None:
self.assert_emit(DecRef(self.m), "CPyTagged_DECREF(cpy_r_m);")
self.assert_emit(DecRef(self.m),
"CPyTagged_DecRef(cpy_r_m);",
rare=True)
def test_dec_ref(self) -> None:
self.assert_emit(DecRef(self.o), "CPy_DECREF(cpy_r_o);")
self.assert_emit(DecRef(self.o), "CPy_DecRef(cpy_r_o);", rare=True)
