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7446151236
This allows individual passes to define options structs and for these options to be parsed per instance of the pass while building the pass pipeline from the command line provided textual specification.
The user can specify these per-instance pipeline options like so:
```
struct MyPassOptions : public PassOptions<MyPassOptions> {
Option<int> exampleOption{*this, "flag-name", llvm::cl::desc("...")};
List<int> exampleListOption{*this, "list-flag-name", llvm::cl::desc("...")};
};
static PassRegistration<MyPass, MyPassOptions> pass("my-pass", "description");
```
PiperOrigin-RevId: 273650140
75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
//===- TestLoopParametricTiling.cpp --- Parametric loop tiling pass -------===//
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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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//
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// This file implements a pass to parametrically tile nests of standard loops.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/LoopOps/LoopOps.h"
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#include "mlir/IR/Builders.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Transforms/LoopUtils.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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// Extracts fixed-range loops for top-level loop nests with ranges defined in
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// the pass constructor. Assumes loops are permutable.
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class SimpleParametricLoopTilingPass
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: public FunctionPass<SimpleParametricLoopTilingPass> {
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public:
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struct Options : public PassOptions<Options> {
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List<int> clOuterLoopSizes{
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*this, "test-outer-loop-sizes", llvm::cl::MiscFlags::CommaSeparated,
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llvm::cl::desc(
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"fixed number of iterations that the outer loops should have")};
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};
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explicit SimpleParametricLoopTilingPass(ArrayRef<int64_t> outerLoopSizes)
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: sizes(outerLoopSizes.begin(), outerLoopSizes.end()) {}
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explicit SimpleParametricLoopTilingPass(const Options &options) {
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sizes.assign(options.clOuterLoopSizes.begin(),
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options.clOuterLoopSizes.end());
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}
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void runOnFunction() override {
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FuncOp func = getFunction();
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func.walk([this](loop::ForOp op) {
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// Ignore nested loops.
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if (op.getParentRegion()->getParentOfType<loop::ForOp>())
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return;
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extractFixedOuterLoops(op, sizes);
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});
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}
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SmallVector<int64_t, 4> sizes;
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};
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} // end namespace
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std::unique_ptr<OpPassBase<FuncOp>>
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mlir::createSimpleParametricTilingPass(ArrayRef<int64_t> outerLoopSizes) {
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return std::make_unique<SimpleParametricLoopTilingPass>(outerLoopSizes);
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}
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static PassRegistration<SimpleParametricLoopTilingPass,
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SimpleParametricLoopTilingPass::Options>
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reg("test-extract-fixed-outer-loops",
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"test application of parametric tiling to the outer loops so that the "
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"ranges of outer loops become static");
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