File: sanitize-dtor-repress-aliasing.cpp

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.8-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,388 kB
  • sloc: cpp: 7,438,767; ansic: 1,393,871; asm: 1,012,926; python: 241,728; f90: 86,635; objc: 75,411; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (30 lines) | stat: -rw-r--r-- 817 bytes parent folder | download | duplicates (42) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
// Test -fsanitize-memory-use-after-dtor
// RUN: %clang_cc1 -fsanitize=memory -O1 -fsanitize-memory-use-after-dtor -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -fsanitize=memory -O2 -fsanitize-memory-use-after-dtor -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s

template <class T>
class Vector {
public:
  int size;
  ~Vector() {}
};

// Virtual function table for the derived class only contains
// its own destructors, with no aliasing to base class dtors.
struct Base {
  Vector<int> v;
  int x;
  Base() { x = 5; }
  virtual ~Base() {}
};

struct Derived : public Base {
  int z;
  Derived() { z = 10; }
  ~Derived() {}
};

Derived d;

// Definition of virtual function table
// CHECK: @_ZTV7Derived = {{.*}}@_ZN7DerivedD1Ev{{.*}}@_ZN7DerivedD0Ev