| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| /*! |
| * \file intrin_rule_default.cc |
| * \brief Default intrinsic rules. |
| */ |
| #include "intrin_rule.h" |
| |
| #include <tvm/tir/op.h> |
| |
| namespace tvm { |
| namespace codegen { |
| namespace intrin { |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.exp").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.erf").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.log").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.log2").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.log10").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.log1p").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.tanh").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.tan").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.atan").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.atanh").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.atan2").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.cos").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.acos").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.cosh").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.acosh").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.sin").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.asin").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.sinh").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.asinh").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.hypot").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.nextafter").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.copysign").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.ldexp").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.sqrt").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.rsqrt") |
| .set_body([](const TVMArgs& args, TVMRetValue* rv) { |
| PrimExpr e = args[0]; |
| const CallNode* call = e.as<CallNode>(); |
| CHECK(call != nullptr); |
| |
| auto one = make_const(call->args[0].dtype(), 1); |
| *rv = one / sqrt(call->args[0]); |
| }); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.pow").set_body(DispatchPureExtern<FloatSuffix>); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.sigmoid") |
| .set_body([](const TVMArgs& args, TVMRetValue* rv) { |
| PrimExpr e = args[0]; |
| const CallNode* call = e.as<CallNode>(); |
| CHECK(call != nullptr); |
| |
| auto one = make_const(call->args[0].dtype(), 1); |
| *rv = one / (one + exp(-call->args[0])); |
| }); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.isfinite") |
| .set_body([](const TVMArgs& args, TVMRetValue* rv) { |
| PrimExpr e = args[0]; |
| const CallNode* call = e.as<CallNode>(); |
| CHECK(call != nullptr); |
| *rv = isfinite(call->args[0]); |
| }); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.isinf") |
| .set_body([](const TVMArgs& args, TVMRetValue* rv) { |
| PrimExpr e = args[0]; |
| const CallNode* call = e.as<CallNode>(); |
| CHECK(call != nullptr); |
| *rv = isinf(call->args[0]); |
| }); |
| |
| TVM_REGISTER_GLOBAL("tvm.intrin.rule.default.q_multiply_shift") |
| .set_body([](const TVMArgs& args, TVMRetValue* rv) { |
| using tir::make_const; |
| |
| PrimExpr e = args[0]; |
| const tir::CallNode* call = e.as<tir::CallNode>(); |
| CHECK(call != nullptr); |
| |
| PrimExpr x = call->args[0]; |
| PrimExpr y = call->args[1]; |
| PrimExpr q = call->args[2]; |
| PrimExpr s = call->args[3]; |
| |
| // Only int32 types are supported (any number of lanes is allowed) |
| CHECK(y.dtype().code() == DLDataTypeCode::kDLInt && y.dtype().bits() == 32); |
| CHECK(s.dtype().code() == DLDataTypeCode::kDLInt && s.dtype().bits() == 32); |
| |
| DataType hp_dtype = DataType::Int(64, x.dtype().lanes()); |
| DataType lp_dtype = DataType::Int(32, x.dtype().lanes()); |
| |
| // 1) Calculating the integer multiplier and integer shift |
| PrimExpr zero = make_const(s.dtype(), 0); |
| PrimExpr left_shift = tir::Select(s > zero, s, zero); |
| PrimExpr right_shift = tir::Select(s > zero, zero, -s); |
| |
| // 2) Cast and Multiply the integer multiplier |
| PrimExpr one = make_const(hp_dtype, 1); |
| x = cast(hp_dtype, x); |
| y = cast(hp_dtype, y); |
| x = tir::Select(left_shift != zero, x << left_shift, x); |
| |
| // 3) Perform the multiplication in higher precision. |
| x = x * y; |
| |
| // 4) Find the rounding scalar |
| PrimExpr total_right_shift = right_shift + q; |
| PrimExpr pos_rounding_value = (one << (total_right_shift - 1)); |
| x = x + pos_rounding_value; |
| |
| // 5) Simply right shift the result to get the final output. |
| x = x >> total_right_shift; |
| |
| // 6) The fixed point multiplication keeps the value in int32 range. Casting back to int32. |
| *rv = cast(lp_dtype, x); |
| }); |
| |
| } // namespace intrin |
| } // namespace codegen |
| } // namespace tvm |