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Diffstat (limited to 'test/Instrumentation/ThreadSanitizer/vptr_read.ll')
| -rw-r--r-- | test/Instrumentation/ThreadSanitizer/vptr_read.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/Instrumentation/ThreadSanitizer/vptr_read.ll b/test/Instrumentation/ThreadSanitizer/vptr_read.ll new file mode 100644 index 0000000000..404ca3ffe5 --- /dev/null +++ b/test/Instrumentation/ThreadSanitizer/vptr_read.ll @@ -0,0 +1,13 @@ +; RUN: opt < %s -tsan -S | FileCheck %s +; Check that vptr reads are treated in a special way. +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" + +define i8 @Foo(i8* %a) nounwind uwtable { +entry: +; CHECK: call void @__tsan_vptr_read + %0 = load i8* %a, align 8, !tbaa !0 + ret i8 %0 +} +!0 = metadata !{metadata !"vtable pointer", metadata !1} +!1 = metadata !{metadata !"Simple C/C++ TBAA", null} + |