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https://github.com/firestar5683/StarPilot.git
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firestar5683
22a8575199
Keep official openpilot ancestry and dependency licenses. Store resources directly in Git, remove LFS setup requirements, and leave the downloadable big model outside the source tree.
63 lines
2.9 KiB
Python
63 lines
2.9 KiB
Python
import unittest, itertools, math
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from tinygrad import dtypes, Context
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from tinygrad.dtype import DType, ConstType
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from tinygrad.uop.ops import Ops, UOp
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from test.helpers import full_rewrite
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class TestWeakConstFolding(unittest.TestCase):
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def test_weakint_math(self):
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out = (UOp.const(2**40) + UOp.const(2**40)).simplify()
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self.assertEqual((out.op, out.dtype, out.val), (Ops.CONST, dtypes.weakint, 2**41))
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def test_float_unaries(self):
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for op in (Ops.SIN, Ops.LOG2, Ops.EXP2, Ops.SQRT, Ops.RECIPROCAL):
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out = UOp.const(4.0).alu(op).simplify()
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self.assertEqual((out.op, out.dtype), (Ops.CONST, dtypes.weakfloat))
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def test_weakfloat_math(self):
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out = (UOp.const(1.25) + UOp.const(2.5)).simplify()
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self.assertEqual((out.op, out.dtype, out.val), (Ops.CONST, dtypes.weakfloat, 3.75))
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def test_invalid_poison(self):
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self.assertTrue(UOp.invalid().alu(Ops.CDIV, UOp.const(0)).simplify().is_invalid)
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class TestBitcastConstFolding(unittest.TestCase):
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def test_out_of_range_source_value(self):
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for val, src_dt, dst_dt, bits in ((3000000000, dtypes.int32, dtypes.uint32, 3000000000),
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(70000, dtypes.int16, dtypes.uint16, 4464),
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(-5, dtypes.uint32, dtypes.int32, -5)):
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self.assertIs(UOp.const(val, src_dt).bitcast(dst_dt).simplify(), UOp.const(bits, dst_dt))
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def test_scalar_bitcast(self):
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def t(cases: dict[DType, ConstType]):
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for (from_dt, from_v), (to_dt, to_v) in itertools.product(cases.items(), cases.items()):
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if not math.isnan(from_v):
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r = UOp.const(from_v, from_dt).bitcast(to_dt).simplify()
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self.assertIs(r, UOp.const(to_v, to_dt), f"{from_dt} -> {to_dt} ({from_v} -> {to_v})")
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t({dtypes.int8: 0, dtypes.uint8: 0, dtypes.bool: False})
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t({dtypes.int8: 1, dtypes.uint8: 1, dtypes.bool: True})
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t({dtypes.int8: -1, dtypes.uint8: 2**8-1})
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t({dtypes.int16: -1, dtypes.uint16: 2**16-1, dtypes.float16: float('nan')})
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t({dtypes.int32: -1, dtypes.uint32: 2**32-1, dtypes.float32: float('nan')})
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t({dtypes.int64: -1, dtypes.uint64: 2**64-1, dtypes.float64: float('nan')})
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t({dtypes.int8: -2**7, dtypes.uint8: 2**7})
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t({dtypes.int16: -2**15, dtypes.uint16: 2**15})
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t({dtypes.int32: -2**31, dtypes.uint32: 2**31})
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t({dtypes.int64: -2**63, dtypes.uint64: 2**63})
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t({dtypes.int16: 13496, dtypes.uint16: 13496, dtypes.float16: 0.294921875})
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t({dtypes.int32: 1050081145, dtypes.uint32: 1050081145, dtypes.float32: 0.29485681653022766})
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t({dtypes.int64: 4598983288165178391, dtypes.uint64: 4598983288165178391, dtypes.float64: 0.29485681936461233})
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def test_vec_bitcast(self):
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with Context(SPEC=0):
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result = full_rewrite(UOp.const((-1, -2**31, 75), dtypes.int32).bitcast(dtypes.uint32).sink())
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expected = full_rewrite(UOp.const((2**32-1, 2**31, 75), dtypes.uint32).sink())
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self.assertEqual(result.src, expected.src)
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if __name__ == '__main__':
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unittest.main()
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