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| author | Kostya Serebryany <kcc@google.com> | 2013-12-02 08:07:15 +0000 |
|---|---|---|
| committer | Kostya Serebryany <kcc@google.com> | 2013-12-02 08:07:15 +0000 |
| commit | dfb74a58c5ffa658da2b695db7dfdd0b4cc51822 (patch) | |
| tree | 484919a0f658220ce0e34969ed79fda6430b77e2 /test | |
| parent | bc134cb1f18e6870ccebbf03e40b7de11f274644 (diff) | |
| download | llvm-dfb74a58c5ffa658da2b695db7dfdd0b4cc51822.tar.gz llvm-dfb74a58c5ffa658da2b695db7dfdd0b4cc51822.tar.bz2 llvm-dfb74a58c5ffa658da2b695db7dfdd0b4cc51822.tar.xz | |
[tsan] fix instrumentation of vector vptr updates (https://code.google.com/p/thread-sanitizer/issues/detail?id=43)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196079 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Instrumentation/ThreadSanitizer/vptr_update.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/Instrumentation/ThreadSanitizer/vptr_update.ll b/test/Instrumentation/ThreadSanitizer/vptr_update.ll index 95c7bb0e59..4665004054 100644 --- a/test/Instrumentation/ThreadSanitizer/vptr_update.ll +++ b/test/Instrumentation/ThreadSanitizer/vptr_update.ll @@ -4,10 +4,27 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3 define void @Foo(i8** nocapture %a, i8* %b) nounwind uwtable sanitize_thread { entry: +; CHECK-LABEL: @Foo ; CHECK: call void @__tsan_vptr_update +; CHECK: ret void store i8* %b, i8** %a, align 8, !tbaa !0 ret void } + +declare i32 @Func1() +declare i32 @Func2() + +; Test that we properly handle vector stores marked as vtable updates. +define void @VectorVptrUpdate(<2 x i8*>* nocapture %a, i8* %b) nounwind uwtable sanitize_thread { +entry: +; CHECK-LABEL: @VectorVptrUpdate +; CHECK: call void @__tsan_vptr_update{{.*}}Func1 +; CHECK-NOT: call void @__tsan_vptr_update +; CHECK: ret void + store <2 x i8 *> <i8* bitcast(i32 ()* @Func1 to i8 *), i8* bitcast(i32 ()* @Func2 to i8 *)>, <2 x i8 *>* %a, align 8, !tbaa !0 + ret void +} + !0 = metadata !{metadata !2, metadata !2, i64 0} !1 = metadata !{metadata !"Simple C/C++ TBAA", null} !2 = metadata !{metadata !"vtable pointer", metadata !1} |