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- import unittest
- from src.statement import Statement as S
- from src.dataflow import BasicBlock as B, find_basic_blocks, \
- generate_flow_graph
- from src.liveness import create_use_def, create_in_out
- class TestLiveness(unittest.TestCase):
- def setUp(self):
- pass
- def tearDown(self):
- pass
- def test_create_gen_kill(self):
- s1 = S('command', 'addu', '$3', '$1', '$2')
- s2 = S('command', 'addu', '$1', '$3', 10)
- s3 = S('command', 'subu', '$3', '$1', 5)
- s4 = S('command', 'li', '$4', '0x00000001')
- block = B([s1, s2, s3, s4])
- create_use_def(block)
- self.assertEqual(block.use_set, set(['$1', '$2']))
- self.assertEqual(block.def_set, set(['$3', '$4']))
- def test_create_in_out(self):
- s11 = S('command', 'li', 'a', 3)
- s12 = S('command', 'li', 'b', 5)
- s13 = S('command', 'li', 'd', 4)
- s14 = S('command', 'li', 'x', 100)
- s15 = S('command', 'beq', 'a', 'b', 'L1')
- s21 = S('command', 'addu', 'c', 'a', 'b')
- s22 = S('command', 'li', 'd', 2)
- s31 = S('label', 'L1')
- s32 = S('command', 'li', 'c', 4)
- s33 = S('command', 'mult', 'b', 'd')
- s34 = S('command', 'mflo', 'temp')
- s35 = S('command', 'addu', 'return', 'temp', 'c')
- b1, b2, b3 = find_basic_blocks([s11, s12, s13, s14, s15, s21, s22, \
- s31, s32, s33, s34, s35])
- generate_flow_graph([b1, b2, b3])
- create_in_out([b1, b2, b3])
- self.assertEqual(b1.use_set, set())
- self.assertEqual(b1.def_set, set(['a', 'b', 'd', 'x']))
- self.assertEqual(b2.use_set, set(['a', 'b']))
- self.assertEqual(b2.def_set, set(['c', 'd']))
- self.assertEqual(b3.use_set, set(['b', 'd']))
- self.assertEqual(b3.def_set, set(['c', 'temp', 'return']))
- self.assertEqual(b1.live_in, set())
- self.assertEqual(b1.live_out, set(['a', 'b', 'd']))
- self.assertEqual(b2.live_in, set(['a', 'b']))
- self.assertEqual(b2.live_out, set(['b', 'd']))
- self.assertEqual(b3.live_in, set(['b', 'd']))
- self.assertEqual(b3.live_out, set())
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