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125 lines
4.1 KiB
125 lines
4.1 KiB
//===- PassManagerTest.cpp - PassManager unit tests -----------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Pass/PassManager.h"
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#include "mlir/IR/Builders.h"
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#include "mlir/IR/BuiltinOps.h"
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#include "mlir/Pass/Pass.h"
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#include "gtest/gtest.h"
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using namespace mlir;
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using namespace mlir::detail;
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namespace {
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/// Analysis that operates on any operation.
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struct GenericAnalysis {
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GenericAnalysis(Operation *op) : isFunc(isa<FuncOp>(op)) {}
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const bool isFunc;
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};
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/// Analysis that operates on a specific operation.
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struct OpSpecificAnalysis {
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OpSpecificAnalysis(FuncOp op) : isSecret(op.getName() == "secret") {}
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const bool isSecret;
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};
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/// Simple pass to annotate a FuncOp with the results of analysis.
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/// Note: not using FunctionPass as it skip external functions.
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struct AnnotateFunctionPass
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: public PassWrapper<AnnotateFunctionPass, OperationPass<FuncOp>> {
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void runOnOperation() override {
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FuncOp op = getOperation();
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Builder builder(op.getParentOfType<ModuleOp>());
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auto &ga = getAnalysis<GenericAnalysis>();
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auto &sa = getAnalysis<OpSpecificAnalysis>();
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op.setAttr("isFunc", builder.getBoolAttr(ga.isFunc));
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op.setAttr("isSecret", builder.getBoolAttr(sa.isSecret));
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}
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};
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TEST(PassManagerTest, OpSpecificAnalysis) {
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MLIRContext context;
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Builder builder(&context);
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// Create a module with 2 functions.
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OwningModuleRef module(ModuleOp::create(UnknownLoc::get(&context)));
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for (StringRef name : {"secret", "not_secret"}) {
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FuncOp func =
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FuncOp::create(builder.getUnknownLoc(), name,
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builder.getFunctionType(llvm::None, llvm::None));
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func.setPrivate();
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module->push_back(func);
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}
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// Instantiate and run our pass.
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PassManager pm(&context);
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pm.addNestedPass<FuncOp>(std::make_unique<AnnotateFunctionPass>());
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LogicalResult result = pm.run(module.get());
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EXPECT_TRUE(succeeded(result));
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// Verify that each function got annotated with expected attributes.
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for (FuncOp func : module->getOps<FuncOp>()) {
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ASSERT_TRUE(func.getAttr("isFunc").isa<BoolAttr>());
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EXPECT_TRUE(func.getAttr("isFunc").cast<BoolAttr>().getValue());
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bool isSecret = func.getName() == "secret";
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ASSERT_TRUE(func.getAttr("isSecret").isa<BoolAttr>());
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EXPECT_EQ(func.getAttr("isSecret").cast<BoolAttr>().getValue(), isSecret);
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}
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}
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namespace {
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struct InvalidPass : Pass {
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InvalidPass() : Pass(TypeID::get<InvalidPass>(), StringRef("invalid_op")) {}
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StringRef getName() const override { return "Invalid Pass"; }
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void runOnOperation() override {}
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/// A clone method to create a copy of this pass.
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std::unique_ptr<Pass> clonePass() const override {
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return std::make_unique<InvalidPass>(
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*static_cast<const InvalidPass *>(this));
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}
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};
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} // anonymous namespace
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TEST(PassManagerTest, InvalidPass) {
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MLIRContext context;
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// Create a module
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OwningModuleRef module(ModuleOp::create(UnknownLoc::get(&context)));
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// Add a single "invalid_op" operation
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OpBuilder builder(&module->getBodyRegion());
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OperationState state(UnknownLoc::get(&context), "invalid_op");
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builder.insert(Operation::create(state));
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// Register a diagnostic handler to capture the diagnostic so that we can
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// check it later.
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std::unique_ptr<Diagnostic> diagnostic;
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context.getDiagEngine().registerHandler([&](Diagnostic &diag) {
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diagnostic.reset(new Diagnostic(std::move(diag)));
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});
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// Instantiate and run our pass.
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PassManager pm(&context);
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pm.nest("invalid_op").addPass(std::make_unique<InvalidPass>());
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LogicalResult result = pm.run(module.get());
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EXPECT_TRUE(failed(result));
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ASSERT_TRUE(diagnostic.get() != nullptr);
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EXPECT_EQ(
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diagnostic->str(),
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"'invalid_op' op trying to schedule a pass on an unregistered operation");
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// Check that adding the pass at the top-level triggers a fatal error.
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ASSERT_DEATH(pm.addPass(std::make_unique<InvalidPass>()), "");
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}
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} // end namespace
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