wehub-resource-sync
83 lines
2.5 KiB
Python
83 lines
2.5 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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"""Target dependent intrinsic registration."""
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from tvm.ir import register_intrin_lowering
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from tvm.tirx import call_pure_extern
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def _rule_float_suffix(op):
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"""Intrinsic rule: Add float suffix if it is float32.
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This is an example intrinsic generation rule.
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Parameters
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----------
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op : Expr
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The call expression of original intrinsic.
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Returns
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-------
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ret : Expr
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The translated intrinsic rule.
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Return same op if no translation is possible.
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See Also
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--------
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register_intrin_lowering : The registration function for intrinsic lowering rule.
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"""
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name = op.op.name
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assert name.startswith("tirx.")
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prefix = name[4:]
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if op.ty.dtype == "float32":
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return call_pure_extern(op.ty, f"{prefix}f", *op.args)
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if op.ty.dtype == "float64":
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return call_pure_extern(op.ty, prefix, *op.args)
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return op
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def _rule_float_direct(op):
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"""Intrinsic rule: Directly call pure extern function for floats.
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This is an example intrinsic generation rule.
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Parameters
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----------
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op : Expr
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The call expression of original intrinsic.
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Returns
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-------
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ret : Expr
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The translated intrinsic rule.
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Return same op if no translation is possible.
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See Also
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--------
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register_intrin_lowering : The registration function for intrinsic lowering rule.
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"""
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if str(op.ty.dtype).startswith("float"):
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return call_pure_extern(op.ty, op.op.name[4:], *op.args)
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return None
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# opencl pattern for exp
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register_intrin_lowering("tirx.exp", target="opencl", f=_rule_float_direct, level=99)
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# default pattern for exp
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register_intrin_lowering("tirx.exp", target="default", f=_rule_float_suffix, level=99)
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