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Refactored dtor sanitizing into EHScopeStack Summary: Dtor sanitization handled amidst other dtor cleanups, between cleaning bases and fields. Sanitizer call pushed onto stack of cleanup operations. Reviewers: eugenis, kcc Differential Revision: http://reviews.llvm.org/D12022 Refactoring dtor sanitizing emission order. - Support multiple inheritance by poisoning after member destructors are invoked, and before base class destructors are invoked. - Poison for virtual destructor and virtual bases. - Repress dtor aliasing when sanitizing in dtor. - CFE test for dtor aliasing, and repression of aliasing in dtor code generation. - Poison members on field-by-field basis, with collective poisoning of trivial members when possible. - Check msan flags and existence of fields, before dtor sanitizing, and when determining if aliasing is allowed. - Testing sanitizing bit fields. llvm-svn: 246815
2015-09-04 07:02:30 +08:00
// RUN: %clang_cc1 -fsanitize=memory -O0 -fsanitize-memory-use-after-dtor -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s
[Clang] Disable new PM for tests that use optimization level -O1, -O2 and -O3 Tests that use -O1, -O2 and -O3 would often produce different results with the new pass manager which makes these tests fail. Disable new PM explicitly for these tests. Differential Revision: https://reviews.llvm.org/D58375 llvm-svn: 362580
2019-06-05 11:17:11 +08:00
// RUN: %clang_cc1 -fsanitize=memory -O1 -fno-experimental-new-pass-manager -fsanitize-memory-use-after-dtor -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s
Refactored dtor sanitizing into EHScopeStack Summary: Dtor sanitization handled amidst other dtor cleanups, between cleaning bases and fields. Sanitizer call pushed onto stack of cleanup operations. Reviewers: eugenis, kcc Differential Revision: http://reviews.llvm.org/D12022 Refactoring dtor sanitizing emission order. - Support multiple inheritance by poisoning after member destructors are invoked, and before base class destructors are invoked. - Poison for virtual destructor and virtual bases. - Repress dtor aliasing when sanitizing in dtor. - CFE test for dtor aliasing, and repression of aliasing in dtor code generation. - Poison members on field-by-field basis, with collective poisoning of trivial members when possible. - Check msan flags and existence of fields, before dtor sanitizing, and when determining if aliasing is allowed. - Testing sanitizing bit fields. llvm-svn: 246815
2015-09-04 07:02:30 +08:00
template <class T>
class Vector {
public:
int size;
~Vector() {
size += 1;
}
};
struct Base {
int b1;
double b2;
Base() {
b1 = 5;
b2 = 10.989;
}
virtual ~Base() {}
};
struct VirtualBase {
int vb1;
int vb2;
VirtualBase() {
vb1 = 10;
vb2 = 11;
}
virtual ~VirtualBase() {}
};
struct Derived : public Base, public virtual VirtualBase {
int d1;
Vector<int> v;
int d2;
Derived() {
d1 = 10;
}
~Derived() {}
};
Derived d;
// Destruction order:
// Derived: int, Vector, Base, VirtualBase
// CHECK-LABEL: define {{.*}}ZN7DerivedD1Ev
// CHECK: call void {{.*}}ZN11VirtualBaseD2Ev
// CHECK: ret void
// CHECK-LABEL: define {{.*}}ZN7DerivedD0Ev
// CHECK: ret void
// CHECK-LABEL: define {{.*}}ZN11VirtualBaseD1Ev
// CHECK: ret void
// CHECK-LABEL: define {{.*}}ZN11VirtualBaseD0Ev
// CHECK: ret void
// poison 2 ints
// CHECK-LABEL: define {{.*}}ZN11VirtualBaseD2Ev
// CHECK: call void {{.*}}sanitizer_dtor_callback({{.*}}, i64 8)
// CHECK: ret void
// poison int and double
// CHECK-LABEL: define {{.*}}ZN4BaseD2Ev
// CHECK: call void {{.*}}sanitizer_dtor_callback({{.*}}, i64 16)
// CHECK: ret void
// poison int, ignore vector, poison int
// CHECK-LABEL: define {{.*}}ZN7DerivedD2Ev
// CHECK: call void {{.*}}ZN6VectorIiED1Ev
// CHECK: call void {{.*}}sanitizer_dtor_callback({{.*}}, i64 4)
// CHECK: call void {{.*}}sanitizer_dtor_callback({{.*}}, i64 4)
// CHECK: call void {{.*}}ZN4BaseD2Ev
// CHECK: ret void
// poison int
// CHECK-LABEL: define {{.*}}ZN6VectorIiED2Ev
// CHECK: call void {{.*}}sanitizer_dtor_callback({{.*}}, i64 4)
// CHECK: ret void