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Mini Shell
Mini Shell
import unittest
from typing import List
from mypyc.ir.ops import BasicBlock, Register, Op, Integer, IntOp, Unreachable, Assign
from mypyc.ir.rtypes import int_rprimitive
from mypyc.ir.pprint import generate_names_for_ir
def register(name: str) -> Register:
return Register(int_rprimitive, 'foo', is_arg=True)
def make_block(ops: List[Op]) -> BasicBlock:
block = BasicBlock()
block.ops.extend(ops)
return block
class TestGenerateNames(unittest.TestCase):
def test_empty(self) -> None:
assert generate_names_for_ir([], []) == {}
def test_arg(self) -> None:
reg = register('foo')
assert generate_names_for_ir([reg], []) == {reg: 'foo'}
def test_int_op(self) -> None:
n1 = Integer(2)
n2 = Integer(4)
op1 = IntOp(int_rprimitive, n1, n2, IntOp.ADD)
op2 = IntOp(int_rprimitive, op1, n2, IntOp.ADD)
block = make_block([op1, op2, Unreachable()])
assert generate_names_for_ir([], [block]) == {op1: 'r0', op2: 'r1'}
def test_assign(self) -> None:
reg = register('foo')
n = Integer(2)
op1 = Assign(reg, n)
op2 = Assign(reg, n)
block = make_block([op1, op2])
assert generate_names_for_ir([reg], [block]) == {reg: 'foo'}
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