forked from OSchip/llvm-project
65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
//===- Helpers.cpp - MLIR Declarative Helper Functionality ----------------===//
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//
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// Copyright 2019 The MLIR Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// =============================================================================
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#include "mlir/EDSC/Helpers.h"
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#include "mlir/IR/AffineExpr.h"
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#include "mlir/StandardOps/Ops.h"
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using namespace mlir;
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using namespace mlir::edsc;
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static SmallVector<ValueHandle, 8> getMemRefSizes(Value *memRef) {
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MemRefType memRefType = memRef->getType().cast<MemRefType>();
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auto maps = memRefType.getAffineMaps();
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(void)maps;
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assert((maps.empty() || (maps.size() == 1 && maps[0].isIdentity())) &&
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"Layout maps not supported");
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SmallVector<ValueHandle, 8> res;
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res.reserve(memRefType.getShape().size());
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const auto &shape = memRefType.getShape();
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for (unsigned idx = 0, n = shape.size(); idx < n; ++idx) {
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if (shape[idx] == -1) {
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res.push_back(ValueHandle::create<DimOp>(memRef, idx));
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} else {
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res.push_back(static_cast<index_t>(shape[idx]));
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}
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}
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return res;
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}
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mlir::edsc::MemRefView::MemRefView(Value *v) : base(v) {
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assert(v->getType().isa<MemRefType>() && "MemRefType expected");
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auto memrefSizeValues = getMemRefSizes(v);
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for (auto &size : memrefSizeValues) {
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lbs.push_back(static_cast<index_t>(0));
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ubs.push_back(size);
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steps.push_back(1);
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}
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}
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mlir::edsc::VectorView::VectorView(Value *v) : base(v) {
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auto vectorType = v->getType().cast<VectorType>();
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for (auto s : vectorType.getShape()) {
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lbs.push_back(static_cast<index_t>(0));
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ubs.push_back(static_cast<index_t>(s));
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steps.push_back(1);
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}
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}
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