| 1 | //===- TestLivenessAnalysis.cpp - Test liveness analysis ------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include <llvm/ADT/STLExtras.h> |
| 10 | #include <llvm/Support/raw_ostream.h> |
| 11 | #include <mlir/Analysis/DataFlow/LivenessAnalysis.h> |
| 12 | |
| 13 | #include <cassert> |
| 14 | #include <mlir/Analysis/DataFlowFramework.h> |
| 15 | #include <mlir/IR/BuiltinAttributes.h> |
| 16 | #include <mlir/IR/Operation.h> |
| 17 | #include <mlir/IR/SymbolTable.h> |
| 18 | #include <mlir/Pass/Pass.h> |
| 19 | #include <mlir/Pass/PassRegistry.h> |
| 20 | #include <mlir/Support/LLVM.h> |
| 21 | #include <mlir/Support/TypeID.h> |
| 22 | |
| 23 | using namespace mlir; |
| 24 | using namespace mlir::dataflow; |
| 25 | |
| 26 | namespace { |
| 27 | |
| 28 | struct TestLivenessAnalysisPass |
| 29 | : public PassWrapper<TestLivenessAnalysisPass, OperationPass<>> { |
| 30 | MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestLivenessAnalysisPass) |
| 31 | |
| 32 | StringRef getArgument() const override { return "test-liveness-analysis"; } |
| 33 | |
| 34 | void runOnOperation() override { |
| 35 | auto &livenessAnalysis = getAnalysis<RunLivenessAnalysis>(); |
| 36 | |
| 37 | Operation *op = getOperation(); |
| 38 | |
| 39 | raw_ostream &os = llvm::outs(); |
| 40 | |
| 41 | op->walk(callback: [&](Operation *op) { |
| 42 | auto tag = op->getAttrOfType<StringAttr>("tag"); |
| 43 | if (!tag) |
| 44 | return; |
| 45 | os << "test_tag: "<< tag.getValue() << ":\n"; |
| 46 | for (auto [index, operand] : llvm::enumerate(First: op->getOperands())) { |
| 47 | const Liveness *liveness = livenessAnalysis.getLiveness(val: operand); |
| 48 | assert(liveness && "expected a sparse lattice"); |
| 49 | os << " operand #"<< index << ": "; |
| 50 | liveness->print(os); |
| 51 | os << "\n"; |
| 52 | } |
| 53 | for (auto [index, operand] : llvm::enumerate(First: op->getResults())) { |
| 54 | const Liveness *liveness = livenessAnalysis.getLiveness(val: operand); |
| 55 | assert(liveness && "expected a sparse lattice"); |
| 56 | os << " result #"<< index << ": "; |
| 57 | liveness->print(os); |
| 58 | os << "\n"; |
| 59 | } |
| 60 | }); |
| 61 | } |
| 62 | }; |
| 63 | } // end anonymous namespace |
| 64 | |
| 65 | namespace mlir { |
| 66 | namespace test { |
| 67 | void registerTestLivenessAnalysisPass() { |
| 68 | PassRegistration<TestLivenessAnalysisPass>(); |
| 69 | } |
| 70 | } // end namespace test |
| 71 | } // end namespace mlir |
| 72 |