forked from OSchip/llvm-project
41 lines
1.4 KiB
LLVM
41 lines
1.4 KiB
LLVM
; RUN: opt < %s -tsan -S | FileCheck %s
|
|
; Check that vtable pointer updates 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 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
|
|
}
|
|
|
|
define void @FooInt(i64* nocapture %a, i64 %b) nounwind uwtable sanitize_thread {
|
|
entry:
|
|
; CHECK-LABEL: @FooInt
|
|
; CHECK: call void @__tsan_vptr_update
|
|
; CHECK: ret void
|
|
store i64 %b, i64* %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}
|