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[Bugfix] Fixed crash caused by reversing bitwise operations #4852

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Feb 10, 2020
Merged

[Bugfix] Fixed crash caused by reversing bitwise operations #4852

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9 changes: 9 additions & 0 deletions python/tvm/expr.py
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Original file line number Diff line number Diff line change
Expand Up @@ -113,12 +113,21 @@ def __rshift__(self, other):
def __and__(self, other):
return _make.bitwise_and(self, other)

def __rand__(self, other):
return _make.bitwise_and(other, self)

def __or__(self, other):
return _make.bitwise_or(self, other)

def __ror__(self, other):
return _make.bitwise_or(other, self)

def __xor__(self, other):
return _make.bitwise_xor(self, other)

def __rxor__(self, other):
return _make.bitwise_xor(other, self)

def __invert__(self):
return _make.Call(self.dtype, "bitwise_not", [self], Call.PureIntrinsic, None, 0)

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3 changes: 3 additions & 0 deletions tests/python/unittest/test_lang_basic.py
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Expand Up @@ -175,6 +175,9 @@ def test_bitwise():
assert str(x & y) == 'bitwise_and(x, y)'
assert str(x | y) == 'bitwise_or(x, y)'
assert str(x ^ y) == 'bitwise_xor(x, y)'
assert str(10 & x) == 'bitwise_and(10, x)'
assert str(10 | x) == 'bitwise_or(10, x)'
assert str(10 ^ x) == 'bitwise_xor(10, x)'
assert str(~x) == 'bitwise_not(x)'
assert(tvm.const(1, "int8x2") >> 1).dtype == "int8x2"
assert(x >> tvm.const(1, "int32x2")).dtype == "int32x2"
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