| 1 | //=== DistinctAttributeAllocatorTest.cpp - DistinctAttr storage alloc test ===// |
|---|---|
| 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 "gtest/gtest.h" |
| 10 | |
| 11 | #include "mlir/IR/Builders.h" |
| 12 | #include "mlir/IR/BuiltinAttributes.h" |
| 13 | #include "mlir/IR/MLIRContext.h" |
| 14 | #include "llvm/Support/CrashRecoveryContext.h" |
| 15 | #include <thread> |
| 16 | |
| 17 | using namespace mlir; |
| 18 | |
| 19 | // |
| 20 | // Test that a DistinctAttr that is created on a separate thread does |
| 21 | // not have its storage deleted when the thread joins. |
| 22 | // |
| 23 | TEST(DistinctAttributeAllocatorTest, TestAttributeWellFormedAfterThreadJoin) { |
| 24 | MLIRContext ctx; |
| 25 | OpBuilder builder(&ctx); |
| 26 | DistinctAttr attr; |
| 27 | |
| 28 | std::thread t([&ctx, &attr]() { |
| 29 | attr = DistinctAttr::create(referencedAttr: UnitAttr::get(context: &ctx)); |
| 30 | ASSERT_TRUE(attr); |
| 31 | }); |
| 32 | t.join(); |
| 33 | |
| 34 | // If the attribute storage got deleted after the thread joins (which we don't |
| 35 | // want) then trying to access it triggers an assert in Debug mode, and a |
| 36 | // crash otherwise. Run this in a CrashRecoveryContext to avoid bringing down |
| 37 | // the whole test suite if this test fails. Additionally, MSAN and/or TSAN |
| 38 | // should raise failures here if the attribute storage was deleted. |
| 39 | llvm::CrashRecoveryContext crc; |
| 40 | EXPECT_TRUE(crc.RunSafely([attr]() { (void)attr.getAbstractAttribute(); })); |
| 41 | EXPECT_TRUE( |
| 42 | crc.RunSafely([attr]() { (void)*cast<Attribute>(attr).getImpl(); })); |
| 43 | |
| 44 | ASSERT_TRUE(attr); |
| 45 | } |
| 46 |