mirror of https://github.com/commaai/tinygrad.git
193 lines
8.6 KiB
Python
193 lines
8.6 KiB
Python
import unittest, itertools
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from tinygrad.dtype import dtypes
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from tinygrad.ops import UOps, UOp, BinaryOps, TernaryOps, ReduceOps, UnaryOps # noqa: F401
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from tinygrad.ops import PatternMatcher, UPat
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class TestPatternMatcher(unittest.TestCase):
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def test_simple_match(self):
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matcher = PatternMatcher([(UPat(UOps.CONST, name="x", dtype=dtypes.float), lambda x: x)])
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c1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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c2 = UOp(UOps.CONST, dtypes.int, arg=1)
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self.assertEqual(matcher.rewrite(c1), c1)
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self.assertEqual(matcher.rewrite(c2), None)
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@unittest.skip("closures aren't supported on pattern matchers")
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def test_match_sz_0(self):
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match_cnt = 0
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def fxn(x):
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nonlocal match_cnt
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match_cnt += 1
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assert len(x.src) == 0
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return UOp(UOps.CONST, src=(UOp(UOps.CONST),))
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matcher = PatternMatcher([(UPat(UOps.CONST, src=(), name="x"), fxn)])
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c1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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# second rewrite shouldn't match anything
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c1 = matcher.rewrite(c1)
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c1 = matcher.rewrite(c1)
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self.assertEqual(match_cnt, 1)
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def test_match_sz_0_ctx(self):
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def fxn(ctx, x):
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ctx.append(True)
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assert len(x.src) == 0
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return UOp(UOps.CONST, src=(UOp(UOps.CONST),))
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matcher = PatternMatcher([(UPat(UOps.CONST, src=(), name="x"), fxn)])
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c1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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# second rewrite shouldn't match anything
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ctx = []
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c1 = matcher.rewrite(c1, ctx)
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c1 = matcher.rewrite(c1, ctx)
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self.assertEqual(len(ctx), 1)
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def test_uop(self):
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matcher = PatternMatcher([(UPat(UOps.CONST, name="x"), lambda x: x)])
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c1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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c2 = UOp(UOps.ALU, dtypes.float, (c1, c1), BinaryOps.ADD)
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self.assertEqual(matcher.rewrite(c1), c1)
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self.assertEqual(matcher.rewrite(c2), None)
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def test_uop_set(self):
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matcher = PatternMatcher([(UPat({UOps.CONST, UOps.CAST}, name="x"), lambda x: x)])
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c1 = UOp(UOps.CONST, dtypes.bool, arg=False)
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c2 = UOp(UOps.CAST, dtypes.int, (c1,))
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c3 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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c4 = UOp(UOps.ALU, dtypes.float, (c3, c3), BinaryOps.ADD)
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self.assertEqual(matcher.rewrite(c1), c1)
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self.assertEqual(matcher.rewrite(c2), c2)
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self.assertEqual(matcher.rewrite(c4), None)
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def test_arg(self):
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matcher = PatternMatcher([
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(UPat(UOps.CONST, arg=0, name="x"), lambda x: x),
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(UPat(UOps.CONST, arg=False, name="x"), lambda x: x),
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(UPat(UOps.ALU, arg=BinaryOps.MAX, name="x"), lambda x: x),
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])
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c1 = UOp(UOps.CONST, dtypes.float, arg=0.0)
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c2 = UOp(UOps.CONST, dtypes.bool, arg=False)
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c3 = UOp(UOps.ALU, dtypes.float, (c1, c1), arg=BinaryOps.MAX)
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c4 = UOp(UOps.ALU, dtypes.float, (c1, c1), arg=BinaryOps.MUL)
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c5 = UOp(UOps.CONST, dtypes.int, arg=-1)
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self.assertEqual(matcher.rewrite(c1), c1)
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self.assertEqual(matcher.rewrite(c2), c2)
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self.assertEqual(matcher.rewrite(c3), c3)
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self.assertEqual(matcher.rewrite(c4), None)
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self.assertEqual(matcher.rewrite(c5), None)
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def test_filter_arg(self):
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matcher = PatternMatcher([
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(UPat(UOps.ALU, arg=BinaryOps.MUL, src=[UPat(UOps.CONST, name="c"), UPat(UOps.CONST, arg=2)], name="x"),
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lambda x,c: x if c.arg in {1, -1} else None)
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])
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y1 = UOp(UOps.CONST, dtypes.int, arg=1)
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y2 = UOp(UOps.CONST, dtypes.int, arg=2)
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y3 = UOp(UOps.CONST, dtypes.int, arg=-1)
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c1 = UOp(UOps.ALU, dtypes.int, (y1, y2), BinaryOps.MUL)
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c2 = UOp(UOps.ALU, dtypes.int, (y2, y2), BinaryOps.MUL)
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c3 = UOp(UOps.ALU, dtypes.int, (y3, y2), BinaryOps.MUL)
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c4 = UOp(UOps.ALU, dtypes.int, (y2, y1), BinaryOps.MUL)
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c5 = UOp(UOps.ALU, dtypes.int, (y2, y3), BinaryOps.MUL)
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self.assertEqual(matcher.rewrite(c1), c1)
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self.assertEqual(matcher.rewrite(c2), None)
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self.assertEqual(matcher.rewrite(c3), c3)
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self.assertEqual(matcher.rewrite(c4), c4)
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self.assertEqual(matcher.rewrite(c5), c5)
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def test_dup_name(self):
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matcher = PatternMatcher([(UPat(UOps.ALU, name="x", src=(UPat(UOps.CONST, name="y"), UPat(UOps.CONST, name="y"))), lambda x, y: x)])
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y1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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y2 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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c1 = UOp(UOps.ALU, dtypes.float, (y1, y1), BinaryOps.ADD)
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c2 = UOp(UOps.ALU, dtypes.float, (y1, y2), BinaryOps.ADD)
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self.assertEqual(matcher.rewrite(c1), c1)
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self.assertEqual(matcher.rewrite(c2), c1)
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def test_dtype(self):
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matcher = PatternMatcher([(UPat(UOps.CONST, name="x", dtype=dtypes.float32), lambda x: x)])
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c1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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c2 = UOp(UOps.CONST, dtypes.float64, arg=1.0)
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self.assertEqual(matcher.rewrite(c1), c1)
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self.assertEqual(matcher.rewrite(c2), None)
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def test_dtype_set(self):
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matcher = PatternMatcher([(UPat(UOps.CONST, name="x", dtype={dtypes.float32, dtypes.float64}), lambda x: x)])
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c1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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c2 = UOp(UOps.CONST, dtypes.float64, arg=1.0)
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c3 = UOp(UOps.CONST, dtypes.float16, arg=1.0)
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c4 = UOp(UOps.CONST, dtypes.int, arg=1)
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self.assertEqual(matcher.rewrite(c1), c1)
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self.assertEqual(matcher.rewrite(c2), c2)
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self.assertEqual(matcher.rewrite(c3), None)
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self.assertEqual(matcher.rewrite(c4), None)
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def test_src_one(self):
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matcher = PatternMatcher([(UPat(UOps.ALU, name="x", src=(UPat(UOps.CONST), UPat(UOps.CONST))), lambda x: x)])
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c1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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c2 = UOp(UOps.CONST, dtypes.float, arg=2.0)
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c3 = UOp(UOps.ALU, dtypes.float, (c1,c2), BinaryOps.ADD)
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self.assertEqual(matcher.rewrite(c3), c3)
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self.assertEqual(matcher.rewrite(c2), None)
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matcher = PatternMatcher([(UPat(UOps.ALU, name="x", src=(UPat(UOps.CONST), UPat(UOps.ALU))), lambda x: x)])
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c4 = UOp(UOps.ALU, dtypes.float, (c1,c3), BinaryOps.ADD)
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c5 = UOp(UOps.ALU, dtypes.float, (c3,c1), BinaryOps.ADD)
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self.assertEqual(matcher.rewrite(c3), None)
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self.assertEqual(matcher.rewrite(c4), c4)
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self.assertEqual(matcher.rewrite(c5), None)
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def test_src_permutations(self):
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matcher = PatternMatcher([(UPat(UOps.ALU, name="x", src=[UPat(UOps.CONST), UPat(UOps.ALU)]), lambda x: x)])
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c1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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c2 = UOp(UOps.CONST, dtypes.float, arg=2.0)
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c3 = UOp(UOps.ALU, dtypes.float, (c1,c2), BinaryOps.ADD)
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c4 = UOp(UOps.ALU, dtypes.float, (c3,c2), BinaryOps.ADD)
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c5 = UOp(UOps.ALU, dtypes.float, (c2,c3), BinaryOps.ADD)
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c6 = UOp(UOps.ALU, dtypes.float, (c3,c4), BinaryOps.ADD)
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self.assertEqual(matcher.rewrite(c3), None)
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self.assertEqual(matcher.rewrite(c4), c4)
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self.assertEqual(matcher.rewrite(c5), c5)
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self.assertEqual(matcher.rewrite(c6), None)
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def test_src_repeat(self):
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matcher = PatternMatcher([(UPat(UOps.ALU, name="x", src=UPat(UOps.CONST)), lambda x: x)])
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c1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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c2 = UOp(UOps.CONST, dtypes.float, arg=2.0)
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c3 = UOp(UOps.ALU, dtypes.float, (c1,c2), BinaryOps.ADD)
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c4 = UOp(UOps.ALU, dtypes.float, (c2,c3), BinaryOps.ADD)
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self.assertEqual(matcher.rewrite(c3), c3)
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self.assertEqual(matcher.rewrite(c4), None)
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def test_allow_len(self):
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matcher = PatternMatcher([(UPat(UOps.ALU, name="x", src=(UPat(UOps.CONST),), allow_any_len=True, arg=TernaryOps.MULACC), lambda x: x)])
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c1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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c2 = UOp(UOps.CONST, dtypes.float, arg=2.0)
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c3 = UOp(UOps.CONST, dtypes.float, arg=3.0)
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c4 = UOp(UOps.ALU, dtypes.float, (c1,), UnaryOps.EXP2)
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c5 = UOp(UOps.ALU, dtypes.float, (c1,c2), BinaryOps.ADD)
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c6 = UOp(UOps.ALU, dtypes.float, (c1,c2,c3), TernaryOps.MULACC)
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self.assertEqual(matcher.rewrite(c4), None)
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self.assertEqual(matcher.rewrite(c5), None)
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self.assertEqual(matcher.rewrite(c6), c6)
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def test_deep_src_permutations(self):
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c1 = UOp(UOps.CONST, dtypes.float, arg=1.0)
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c2 = UOp(UOps.CONST, dtypes.float, arg=2.0)
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u1 = (c1 + c2) + c1
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u2 = (c2 + c1) + c1
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matcher = PatternMatcher([
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(UPat(UOps.ALU, src=[UPat(UOps.ALU, src=[UPat(name='a'), UPat(name='b')]), UPat(name='b')]), lambda a,b: b)
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])
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self.assertIsNotNone(matcher.rewrite(u1))
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self.assertIsNotNone(matcher.rewrite(u2))
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def _assert_eq_upat(self, a:UPat, b:UPat):
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assert (sorted(map(str,a.op)) if a.op else [] == (sorted(map(str,b.op)) if b.op else []))
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assert (sorted(a.dtype) if a.dtype else [] == (sorted(b.dtype) if b.dtype else []))
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assert (a.name, type(a.src)) == (b.name, type(b.src))
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def simple_src(u:UPat):
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if u.src is None: return []
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if isinstance(u.src, itertools.repeat): return next(u.src[0])
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return u.src[0]
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for a,b in zip(simple_src(a), simple_src(b)): self._assert_eq_upat(a, b)
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if __name__ == '__main__':
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unittest.main(verbosity=2)
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