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Diffstat (limited to 'compiler/enco/core/src/Transforms/IntrinsicSelection.cpp')
-rw-r--r-- | compiler/enco/core/src/Transforms/IntrinsicSelection.cpp | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/compiler/enco/core/src/Transforms/IntrinsicSelection.cpp b/compiler/enco/core/src/Transforms/IntrinsicSelection.cpp new file mode 100644 index 000000000..7bf1c4926 --- /dev/null +++ b/compiler/enco/core/src/Transforms/IntrinsicSelection.cpp @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved + * + * Licensed 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. + */ + +#include "IntrinsicSelection.h" + +#include "coex/IR.h" + +namespace +{ + +/** + * @brief Return a backend-speicific coco (extend) instruction + * + * @note rewrite(ins) returns nullptr if selection fails + */ +coco::Instr *rewrite(coco::Instr *curr) +{ + auto m = curr->module(); + assert(m != nullptr); + + if (auto eval = coco::safe_cast<coco::Eval>(curr)) + { + if (auto concat_f = eval->op()->asConcatF()) + { + auto fst_load = concat_f->left()->asLoad(); + auto snd_load = concat_f->right()->asLoad(); + + if (fst_load && snd_load && (concat_f->axis() == coco::ConcatF::Axis::Depth)) + { + // Here is the pattern of interest + // + // %ofm = eval(ConcatF(Depth, Load(%left), Load(%right))) + // + auto fst_feature = fst_load->object()->asFeature(); + auto snd_feature = snd_load->object()->asFeature(); + assert((fst_feature != nullptr) && (snd_feature != nullptr)); + + auto out_feature = eval->out()->asFeature(); + assert(out_feature != nullptr); + + eval->out(nullptr); + + auto depth_concat = m->entity()->instr()->create<ANNDepthConcatF>(); + + depth_concat->out(out_feature); + depth_concat->fst(fst_feature); + depth_concat->snd(snd_feature); + + return depth_concat; + } + + return nullptr; + } + } + + return nullptr; +} + +} // namespace + +namespace enco +{ + +void select_intrinsic(enco::Code *code) +{ + auto m = code->module(); + + for (auto blk = m->block()->head(); blk; blk = blk->next()) + { + auto ins = blk->instr()->head(); + + while (ins) + { + if (auto rewritten_ins = rewrite(ins)) + { + rewritten_ins->insertBefore(ins); + ins->detach(); + + ins = rewritten_ins; + } + + ins = ins->next(); + } + } +} + +} // namespace enco |