forked from OSchip/llvm-project
64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
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//===- TestMemRefStrideCalculation.cpp - Pass to test strides computation--===//
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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/Dialect/StandardOps/Ops.h"
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#include "mlir/IR/StandardTypes.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Transforms/Passes.h"
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using namespace mlir;
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namespace {
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/// Simple constant folding pass.
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struct TestMemRefStrideCalculation
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: public FunctionPass<struct TestMemRefStrideCalculation> {
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void runOnFunction() override;
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};
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} // end anonymous namespace
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// Traverse AllocOp and compute strides of each MemRefType independently.
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void TestMemRefStrideCalculation::runOnFunction() {
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getFunction().walk([&](AllocOp allocOp) {
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auto memrefType = allocOp.getResult()->getType().cast<MemRefType>();
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SmallVector<int64_t, 4> strideVector;
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if (failed(memrefType.getStrides(strideVector))) {
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llvm::outs() << "MemRefType " << memrefType << " cannot be converted to "
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<< "strided form\n";
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return;
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}
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ArrayRef<int64_t> strides(strideVector);
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auto offset = strides.back();
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strides = strides.drop_back();
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llvm::outs() << "MemRefType offset: ";
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if (offset == MemRefType::kDynamicStride)
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llvm::outs() << "?";
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else
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llvm::outs() << offset;
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llvm::outs() << " strides: ";
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interleaveComma(strides, llvm::outs(), [&](int64_t v) {
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if (v == MemRefType::kDynamicStride)
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llvm::outs() << "?";
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else
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llvm::outs() << v;
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});
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llvm::outs() << "\n";
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});
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}
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static PassRegistration<TestMemRefStrideCalculation>
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pass("test-memref-stride-calculation", "Test operation constant folding");
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