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# Author: R. W. Ford, STFC Daresbury Laboratory
# Modified: A. R. Porter, STFC Daresbury Laboratory
# Modified: S. Siso, STFC Daresbury Laboratory
'''Module providing a transformation from a PSyIR MIN intrinsic to
PSyIR code. This could be useful if the MIN intrinsic is not supported
by the back-end or if the performance of the inline code is better
than the intrinsic.
'''
from psyclone.psyir.nodes import BinaryOperation, IntrinsicCall
from psyclone.psyir.transformations.intrinsics.minormax2code_trans import \
MinOrMax2CodeTrans
[docs]class Min2CodeTrans(MinOrMax2CodeTrans):
'''Provides a transformation from a PSyIR MIN Intrinsic node to
equivalent code in a PSyIR tree. Validity checks are also
performed (by a parent class).
The transformation replaces
.. code-block:: python
R = MIN(A, B, C ...)
with the following logic:
.. code-block:: python
R = A
if B < R:
R = B
if C < R:
R = C
...
'''
def __init__(self):
super().__init__()
self._intrinsic = IntrinsicCall.Intrinsic.MIN
self._compare_operator = BinaryOperation.Operator.LT