| ; RUN: opt < %s -passes=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(ptr %a) nounwind uwtable sanitize_thread { | |
| entry: | |
| ; CHECK: call void @__tsan_vptr_read | |
| %0 = load i8, ptr %a, align 8, !tbaa !0 | |
| ret i8 %0 | |
| } | |
| !0 = !{!2, !2, i64 0} | |
| !1 = !{!"Simple C/C++ TBAA"} | |
| !2 = !{!"vtable pointer", !1} |