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//===- TestLivenessAnalysis.cpp - Test liveness 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 <llvm/ADT/STLExtras.h>
#include <llvm/Support/raw_ostream.h>
#include <mlir/Analysis/DataFlow/LivenessAnalysis.h>
#include <cassert>
#include <mlir/Analysis/DataFlowFramework.h>
#include <mlir/IR/BuiltinAttributes.h>
#include <mlir/IR/Operation.h>
#include <mlir/IR/SymbolTable.h>
#include <mlir/Pass/Pass.h>
#include <mlir/Pass/PassRegistry.h>
#include <mlir/Support/LLVM.h>
#include <mlir/Support/TypeID.h>
using namespace mlir;
using namespace mlir::dataflow;
namespace {
struct TestLivenessAnalysisPass
: public PassWrapper<TestLivenessAnalysisPass, OperationPass<>> {
MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestLivenessAnalysisPass)
StringRef getArgument() const override { return "test-liveness-analysis"; }
void runOnOperation() override {
auto &livenessAnalysis = getAnalysis<RunLivenessAnalysis>();
Operation *op = getOperation();
raw_ostream &os = llvm::outs();
op->walk([&](Operation *op) {
auto tag = op->getAttrOfType<StringAttr>("tag");
if (!tag)
return;
os << "test_tag: " << tag.getValue() << ":\n";
for (auto [index, operand] : llvm::enumerate(op->getOperands())) {
const Liveness *liveness = livenessAnalysis.getLiveness(operand);
assert(liveness && "expected a sparse lattice");
os << " operand #" << index << ": ";
liveness->print(os);
os << "\n";
}
for (auto [index, operand] : llvm::enumerate(op->getResults())) {
const Liveness *liveness = livenessAnalysis.getLiveness(operand);
assert(liveness && "expected a sparse lattice");
os << " result #" << index << ": ";
liveness->print(os);
os << "\n";
}
});
}
};
} // end anonymous namespace
namespace mlir {
namespace test {
void registerTestLivenessAnalysisPass() {
PassRegistration<TestLivenessAnalysisPass>();
}
} // end namespace test
} // end namespace mlir
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