forked from OSchip/llvm-project
70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
// Test -fsanitize-memory-use-after-dtor
|
|
// RUN: %clang_cc1 -fsanitize=memory -fsanitize-memory-use-after-dtor -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s
|
|
|
|
struct Simple {
|
|
~Simple() {}
|
|
};
|
|
Simple s;
|
|
// Simple internal member is poisoned by compiler-generated dtor
|
|
// CHECK-LABEL: define {{.*}}SimpleD1Ev
|
|
// CHECK: call void @__sanitizer_dtor_callback
|
|
// CHECK-NOT: call void @__sanitizer_dtor_callback
|
|
// CHECK: ret void
|
|
|
|
struct Inlined {
|
|
inline ~Inlined() {}
|
|
};
|
|
Inlined i;
|
|
// Simple internal member is poisoned by compiler-generated dtor
|
|
// CHECK-LABEL: define {{.*}}InlinedD1Ev
|
|
// CHECK: call void @__sanitizer_dtor_callback
|
|
// CHECK-NOT: call void @__sanitizer_dtor_callback
|
|
// CHECK: ret void
|
|
|
|
struct Defaulted_Trivial {
|
|
~Defaulted_Trivial() = default;
|
|
};
|
|
void create_def_trivial() {
|
|
Defaulted_Trivial def_trivial;
|
|
}
|
|
// The compiler is explicitly signalled to handle object cleanup.
|
|
// No complex member attributes. Compiler destroys inline, so
|
|
// no destructor defined.
|
|
// CHECK-LABEL: define {{.*}}create_def_trivial
|
|
// CHECK-NOT: call {{.*}}Defaulted_Trivial
|
|
// CHECK-NOT: call void @__sanitizer_dtor_callback
|
|
// CHECK: ret void
|
|
|
|
struct Defaulted_Non_Trivial {
|
|
Simple s;
|
|
~Defaulted_Non_Trivial() = default;
|
|
};
|
|
Defaulted_Non_Trivial def_non_trivial;
|
|
// Explicitly compiler-generated dtor poisons object.
|
|
// By including a Simple member in the struct, the compiler is
|
|
// forced to generate a non-trivial destructor.
|
|
// CHECK-LABEL: define {{.*}}Defaulted_Non_TrivialD1Ev
|
|
// CHECK: call void @__sanitizer_dtor_callback
|
|
// CHECK-NOT: call void @__sanitizer_dtor_callback
|
|
// CHECK: ret void
|
|
|
|
|
|
// Note: ordering is important. In the emitted bytecode, these
|
|
// second dtors defined after the first. Explicitly checked here
|
|
// to confirm that all invoked dtors have member poisoning
|
|
// instrumentation inserted.
|
|
// CHECK-LABEL: define {{.*}}SimpleD2Ev
|
|
// CHECK: call void @__sanitizer_dtor_callback
|
|
// CHECK-NOT: call void @__sanitizer_dtor_callback
|
|
// CHECK: ret void
|
|
|
|
// CHECK-LABEL: define {{.*}}InlinedD2Ev
|
|
// CHECK: call void @__sanitizer_dtor_callback
|
|
// CHECK-NOT: call void @__sanitizer_dtor_callback
|
|
// CHECK: ret void
|
|
|
|
// CHECK-LABEL: define {{.*}}Defaulted_Non_TrivialD2Ev
|
|
// CHECK: call void @__sanitizer_dtor_callback
|
|
// CHECK-NOT: call void @__sanitizer_dtor_callback
|
|
// CHECK: ret void
|