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test uop mul min/max do not have nan in 0*inf (#7340)

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chenyu
2024-10-28 17:52:01 -04:00
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parent 0843734927
commit c398f2467c
1 changed files with 12 additions and 2 deletions
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14
test/unit/test_uop_vmin_vmax.py
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@@ -1,5 +1,6 @@
import unittest
from tinygrad.ops import UOp, dtypes
import unittest, math
from tinygrad.ops import UOp, UOps
from tinygrad.dtype import dtypes
class TestVminVmaxProperties(unittest.TestCase):
def test_vmin_vmax_constant(self):
@@ -31,6 +32,15 @@ class TestVminVmaxProperties(unittest.TestCase):
self.assertEqual(uop.vmin, -6)
self.assertEqual(uop.vmax, 8)
def test_vmin_vmax_multiplication_0_inf(self):
# vmin and vmax for multiplication with a variable
x = UOp.const(dtypes.float, 0.0)
y = UOp.load(UOp(UOps.DEFINE_GLOBAL, dtypes.float.ptr(), (), 0), UOp.const(dtypes.int, 0), dtype=dtypes.float)
uop = x * y
# TODO: these should be 0, but definitely should not be nan
self.assertEqual(uop.vmin, -math.inf)
self.assertEqual(uop.vmax, math.inf)
def test_vmin_vmax_with_negative_multiplication(self):
# vmin and vmax when multiplying by a negative number
x = UOp.variable('x', 2, 5)