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//===- TestOpaqueLoc.cpp - Pass to test opaque locations ------------------===//
//
// 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/IR/Builders.h"
#include "mlir/IR/BuiltinOps.h"
#include "mlir/Pass/Pass.h"
using namespace mlir;
namespace {
/// A simple structure which is used for testing as an underlying location in
/// OpaqueLoc.
struct MyLocation {
MyLocation() = default;
MyLocation(int id) : id(id) {}
int getId() { return id; }
int id{42};
};
} // namespace
MLIR_DECLARE_EXPLICIT_TYPE_ID(MyLocation *)
MLIR_DEFINE_EXPLICIT_TYPE_ID(MyLocation *)
namespace {
/// Pass that changes locations to opaque locations for each operation.
/// It also takes all operations that are not function operations or
/// terminators and clones them with opaque locations which store the initial
/// locations.
struct TestOpaqueLoc
: public PassWrapper<TestOpaqueLoc, OperationPass<ModuleOp>> {
MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestOpaqueLoc)
StringRef getArgument() const final { return "test-opaque-loc"; }
StringRef getDescription() const final {
return "Changes all leaf locations to opaque locations";
}
void runOnOperation() override {
std::vector<std::unique_ptr<MyLocation>> myLocs;
int lastIt = 0;
getOperation().getBody()->walk([&](Operation *op) {
myLocs.push_back(std::make_unique<MyLocation>(lastIt++));
Location loc = op->getLoc();
/// Set opaque location without fallback location to test the
/// corresponding get method.
op->setLoc(
OpaqueLoc::get<MyLocation *>(myLocs.back().get(), &getContext()));
if (isa<ModuleOp>(op->getParentOp()) ||
op->hasTrait<OpTrait::IsTerminator>())
return;
OpBuilder builder(op);
/// Add the same operation but with fallback location to test the
/// corresponding get method and serialization.
Operation *opCloned1 = builder.clone(*op);
opCloned1->setLoc(OpaqueLoc::get<MyLocation *>(myLocs.back().get(), loc));
/// Add the same operation but with void* instead of MyLocation* to test
/// getUnderlyingLocationOrNull method.
Operation *opCloned2 = builder.clone(*op);
opCloned2->setLoc(OpaqueLoc::get<void *>(nullptr, loc));
});
ScopedDiagnosticHandler diagHandler(&getContext(), [](Diagnostic &diag) {
auto &os = llvm::outs();
if (isa<OpaqueLoc>(diag.getLocation())) {
MyLocation *loc = OpaqueLoc::getUnderlyingLocationOrNull<MyLocation *>(
diag.getLocation());
if (loc)
os << "MyLocation: " << loc->id;
else
os << "nullptr";
}
os << ": " << diag << '\n';
os.flush();
});
getOperation().walk([&](Operation *op) { op->emitOpError(); });
}
};
} // namespace
namespace mlir {
namespace test {
void registerTestOpaqueLoc() { PassRegistration<TestOpaqueLoc>(); }
} // namespace test
} // namespace mlir
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