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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.reaching_definitions import get_defs, create_gen_kill, create_in_out
- class TestReachingDefinitions(unittest.TestCase):
- def setUp(self):
- pass
- def tearDown(self):
- pass
- def test_get_defs(self):
- s1 = S('command', 'add', '$3', '$1', '$2')
- s2 = S('command', 'move', '$1', '$3')
- s3 = S('command', 'move', '$3', '$2')
- s4 = S('command', 'li', '$4', '0x00000001')
- block = B([s1, s2, s3, s4])
- self.assertEqual(get_defs([block]), {
- '$3': set([s1.sid, s3.sid]),
- '$1': set([s2.sid]),
- '$4': set([s4.sid])
- })
- 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_gen_kill(block, get_defs([block]))
- self.assertEqual(block.gen_set, set([s2.sid, s3.sid, s4.sid]))
- self.assertEqual(block.kill_set, set([s1.sid]))
- 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.gen_set, set([s11.sid, s12.sid, s13.sid,
- s14.sid]))
- self.assertEqual(b1.kill_set, set([s22.sid]))
- self.assertEqual(b2.gen_set, set([s21.sid, s22.sid]))
- self.assertEqual(b2.kill_set, set([s13.sid, s32.sid]))
- self.assertEqual(b3.gen_set, set([s32.sid, s34.sid, s35.sid]))
- self.assertEqual(b3.kill_set, set([s21.sid]))
- self.assertEqual(b1.reach_in, set())
- self.assertEqual(b1.reach_out, set([s11.sid, s12.sid, s13.sid,
- s14.sid]))
- self.assertEqual(b2.reach_in, set([s11.sid, s12.sid, s13.sid,
- s14.sid]))
- self.assertEqual(b2.reach_out, set([s21.sid, s22.sid, s11.sid, \
- s12.sid, s14.sid]))
- self.assertEqual(b3.reach_in, set([s21.sid, s22.sid, s11.sid, \
- s12.sid, s13.sid, s14.sid]))
- self.assertEqual(b3.reach_out, set([s32.sid, s34.sid, s35.sid, \
- s22.sid, s11.sid, s12.sid, \
- s13.sid, s14.sid]))
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