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//===- TestStridedMetadataRangeAnalysis.cpp - Test strided md analysis ----===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "mlir/Analysis/DataFlow/ConstantPropagationAnalysis.h"
#include "mlir/Analysis/DataFlow/DeadCodeAnalysis.h"
#include "mlir/Analysis/DataFlow/IntegerRangeAnalysis.h"
#include "mlir/Analysis/DataFlow/StridedMetadataRangeAnalysis.h"
#include "mlir/Analysis/DataFlowFramework.h"
#include "mlir/IR/BuiltinAttributes.h"
#include "mlir/IR/Operation.h"
#include "mlir/Pass/Pass.h"
#include "mlir/Pass/PassRegistry.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/raw_ostream.h"
using namespace mlir;
using namespace mlir::dataflow;
static void printAnalysisResults(DataFlowSolver &solver, Operation *op,
raw_ostream &os) {
// Collect the strided metadata of the op results.
SmallVector<std::pair<unsigned, const StridedMetadataRangeLattice *>> results;
for (OpResult result : op->getResults()) {
const auto *state = solver.lookupState<StridedMetadataRangeLattice>(result);
// Skip the result if it's uninitialized.
if (!state || state->getValue().isUninitialized())
continue;
// Skip the result if the range is empty.
const mlir::StridedMetadataRange &md = state->getValue();
if (md.getOffsets().empty() && md.getSizes().empty() &&
md.getStrides().empty())
continue;
results.push_back({result.getResultNumber(), state});
}
// Early exit if there's no metadata to print.
if (results.empty())
return;
// Print the metadata.
os << "Op: " << OpWithFlags(op, OpPrintingFlags().skipRegions()) << "\n";
for (auto [idx, state] : results)
os << " result[" << idx << "]: " << state->getValue() << "\n";
os << "\n";
}
namespace {
struct TestStridedMetadataRangeAnalysisPass
: public PassWrapper<TestStridedMetadataRangeAnalysisPass,
OperationPass<>> {
MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(
TestStridedMetadataRangeAnalysisPass)
StringRef getArgument() const override {
return "test-strided-metadata-range-analysis";
}
void runOnOperation() override {
Operation *op = getOperation();
DataFlowSolver solver;
solver.load<DeadCodeAnalysis>();
solver.load<SparseConstantPropagation>();
solver.load<IntegerRangeAnalysis>();
solver.load<StridedMetadataRangeAnalysis>();
if (failed(solver.initializeAndRun(op)))
return signalPassFailure();
op->walk(
[&](Operation *op) { printAnalysisResults(solver, op, llvm::errs()); });
}
};
} // end anonymous namespace
namespace mlir {
namespace test {
void registerTestStridedMetadataRangeAnalysisPass() {
PassRegistration<TestStridedMetadataRangeAnalysisPass>();
}
} // end namespace test
} // end namespace mlir
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