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//===--- OwnershipDumper.cpp ----------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
///
/// \file
///
/// This is a simple utility pass that dumps the ValueOwnershipKind of all
/// SILValue in a module. It is meant to trigger assertions and verification of
/// these values.
///
//===----------------------------------------------------------------------===//
#include "swift/SIL/SILFunction.h"
#include "swift/SIL/SILInstruction.h"
#include "swift/SILOptimizer/PassManager/Passes.h"
#include "swift/SILOptimizer/PassManager/Transforms.h"
using namespace swift;
//===----------------------------------------------------------------------===//
// Implementation
//===----------------------------------------------------------------------===//
static void dumpInstruction(SILInstruction &ii) {
llvm::outs() << "Visiting: " << ii;
auto ops = ii.getAllOperands();
if (!ops.empty()) {
llvm::outs() << "Ownership Constraint:\n";
for (const auto &op : ops) {
llvm::outs() << "Op #: " << op.getOperandNumber() << "\n"
"Constraint: " << op.getOwnershipConstraint() << "\n";
}
}
// If the instruction doesn't have any results, bail.
auto results = ii.getResults();
if (!results.empty()) {
llvm::outs() << "Results Ownership Kinds:\n";
for (auto v : results) {
auto kind = v->getOwnershipKind();
llvm::outs() << "Result: " << v;
llvm::outs() << "Kind: " << kind << "\n";
}
}
}
//===----------------------------------------------------------------------===//
// Top Level Entrypoint
//===----------------------------------------------------------------------===//
namespace {
class OwnershipDumper : public SILFunctionTransform {
void run() override {
SILFunction *f = getFunction();
llvm::outs() << "*** Dumping Function: '" << f->getName() << "'\n";
for (auto &bb : *f) {
// We only dump instructions right now.
for (auto &ii : bb) {
dumpInstruction(ii);
}
}
}
};
} // end anonymous namespace
SILTransform *swift::createOwnershipDumper() { return new OwnershipDumper(); }
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