diff options
Diffstat (limited to 'lib/tsan/tests/rtl/tsan_mop.cc')
-rw-r--r-- | lib/tsan/tests/rtl/tsan_mop.cc | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/lib/tsan/tests/rtl/tsan_mop.cc b/lib/tsan/tests/rtl/tsan_mop.cc new file mode 100644 index 000000000000..f21742825050 --- /dev/null +++ b/lib/tsan/tests/rtl/tsan_mop.cc @@ -0,0 +1,233 @@ +//===-- tsan_mop.cc -------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file is a part of ThreadSanitizer (TSan), a race detector. +// +//===----------------------------------------------------------------------===// +#include "tsan_interface.h" +#include "tsan_test_util.h" +#include "gtest/gtest.h" +#include <stddef.h> +#include <stdint.h> + +TEST(ThreadSanitizer, SimpleWrite) { + ScopedThread t; + MemLoc l; + t.Write1(l); +} + +TEST(ThreadSanitizer, SimpleWriteWrite) { + ScopedThread t1, t2; + MemLoc l1, l2; + t1.Write1(l1); + t2.Write1(l2); +} + +TEST(ThreadSanitizer, WriteWriteRace) { + ScopedThread t1, t2; + MemLoc l; + t1.Write1(l); + t2.Write1(l, true); +} + +TEST(ThreadSanitizer, ReadWriteRace) { + ScopedThread t1, t2; + MemLoc l; + t1.Read1(l); + t2.Write1(l, true); +} + +TEST(ThreadSanitizer, WriteReadRace) { + ScopedThread t1, t2; + MemLoc l; + t1.Write1(l); + t2.Read1(l, true); +} + +TEST(ThreadSanitizer, ReadReadNoRace) { + ScopedThread t1, t2; + MemLoc l; + t1.Read1(l); + t2.Read1(l); +} + +TEST(ThreadSanitizer, WriteThenRead) { + MemLoc l; + ScopedThread t1, t2; + t1.Write1(l); + t1.Read1(l); + t2.Read1(l, true); +} + +TEST(ThreadSanitizer, WriteThenLockedRead) { + Mutex m(Mutex::RW); + MainThread t0; + t0.Create(m); + MemLoc l; + { + ScopedThread t1, t2; + + t1.Write8(l); + + t1.Lock(m); + t1.Read8(l); + t1.Unlock(m); + + t2.Read8(l, true); + } + t0.Destroy(m); +} + +TEST(ThreadSanitizer, LockedWriteThenRead) { + Mutex m(Mutex::RW); + MainThread t0; + t0.Create(m); + MemLoc l; + { + ScopedThread t1, t2; + + t1.Lock(m); + t1.Write8(l); + t1.Unlock(m); + + t1.Read8(l); + + t2.Read8(l, true); + } + t0.Destroy(m); +} + + +TEST(ThreadSanitizer, RaceWithOffset) { + ScopedThread t1, t2; + { + MemLoc l; + t1.Access(l.loc(), true, 8, false); + t2.Access((char*)l.loc() + 4, true, 4, true); + } + { + MemLoc l; + t1.Access(l.loc(), true, 8, false); + t2.Access((char*)l.loc() + 7, true, 1, true); + } + { + MemLoc l; + t1.Access((char*)l.loc() + 4, true, 4, false); + t2.Access((char*)l.loc() + 4, true, 2, true); + } + { + MemLoc l; + t1.Access((char*)l.loc() + 4, true, 4, false); + t2.Access((char*)l.loc() + 6, true, 2, true); + } + { + MemLoc l; + t1.Access((char*)l.loc() + 3, true, 2, false); + t2.Access((char*)l.loc() + 4, true, 1, true); + } + { + MemLoc l; + t1.Access((char*)l.loc() + 1, true, 8, false); + t2.Access((char*)l.loc() + 3, true, 1, true); + } +} + +TEST(ThreadSanitizer, RaceWithOffset2) { + ScopedThread t1, t2; + { + MemLoc l; + t1.Access((char*)l.loc(), true, 4, false); + t2.Access((char*)l.loc() + 2, true, 1, true); + } + { + MemLoc l; + t1.Access((char*)l.loc() + 2, true, 1, false); + t2.Access((char*)l.loc(), true, 4, true); + } +} + +TEST(ThreadSanitizer, NoRaceWithOffset) { + ScopedThread t1, t2; + { + MemLoc l; + t1.Access(l.loc(), true, 4, false); + t2.Access((char*)l.loc() + 4, true, 4, false); + } + { + MemLoc l; + t1.Access((char*)l.loc() + 3, true, 2, false); + t2.Access((char*)l.loc() + 1, true, 2, false); + t2.Access((char*)l.loc() + 5, true, 2, false); + } +} + +TEST(ThreadSanitizer, RaceWithDeadThread) { + MemLoc l; + ScopedThread t; + ScopedThread().Write1(l); + t.Write1(l, true); +} + +TEST(ThreadSanitizer, BenignRaceOnVptr) { + void *vptr_storage; + MemLoc vptr(&vptr_storage), val; + vptr_storage = val.loc(); + ScopedThread t1, t2; + t1.VptrUpdate(vptr, val); + t2.Read8(vptr); +} + +TEST(ThreadSanitizer, HarmfulRaceOnVptr) { + void *vptr_storage; + MemLoc vptr(&vptr_storage), val1, val2; + vptr_storage = val1.loc(); + ScopedThread t1, t2; + t1.VptrUpdate(vptr, val2); + t2.Read8(vptr, true); +} + +static void foo() { + volatile int x = 42; + int x2 = x; + (void)x2; +} + +static void bar() { + volatile int x = 43; + int x2 = x; + (void)x2; +} + +TEST(ThreadSanitizer, ReportDeadThread) { + MemLoc l; + ScopedThread t1; + { + ScopedThread t2; + t2.Call(&foo); + t2.Call(&bar); + t2.Write1(l); + } + t1.Write1(l, true); +} + +struct ClassWithStatic { + static int Data[4]; +}; + +int ClassWithStatic::Data[4]; + +static void foobarbaz() {} + +TEST(ThreadSanitizer, ReportRace) { + ScopedThread t1; + MainThread().Access(&ClassWithStatic::Data, true, 4, false); + t1.Call(&foobarbaz); + t1.Access(&ClassWithStatic::Data, true, 2, true); + t1.Return(); +} |