Move UBSan test suite under test/

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@201401 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 117 insertions, 0 deletions

diff --git a/test/ubsan/TestCases/TypeCheck/vptr.cpp b/test/ubsan/TestCases/TypeCheck/vptr.cpp
new file mode 100644
index 000000000..9095f7279
--- /dev/null
+++ b/test/ubsan/TestCases/TypeCheck/vptr.cpp
@@ -0,0 +1,117 @@
+// RUN: %clangxx -fsanitize=vptr %s -O3 -o %t
+// RUN: %t rT && %t mT && %t fT && %t cT
+// RUN: %t rU && %t mU && %t fU && %t cU
+// RUN: %t rS && %t rV && %t oV
+// RUN: %t mS 2>&1 | FileCheck %s --check-prefix=CHECK-MEMBER --strict-whitespace
+// RUN: %t fS 2>&1 | FileCheck %s --check-prefix=CHECK-MEMFUN --strict-whitespace
+// RUN: %t cS 2>&1 | FileCheck %s --check-prefix=CHECK-DOWNCAST --strict-whitespace
+// RUN: %t mV 2>&1 | FileCheck %s --check-prefix=CHECK-MEMBER --strict-whitespace
+// RUN: %t fV 2>&1 | FileCheck %s --check-prefix=CHECK-MEMFUN --strict-whitespace
+// RUN: %t cV 2>&1 | FileCheck %s --check-prefix=CHECK-DOWNCAST --strict-whitespace
+// RUN: %t oU 2>&1 | FileCheck %s --check-prefix=CHECK-OFFSET --strict-whitespace
+// RUN: %t m0 2>&1 | FileCheck %s --check-prefix=CHECK-NULL-MEMBER --strict-whitespace
+
+// FIXME: This test produces linker errors on Darwin.
+// XFAIL: darwin
+
+struct S {
+  S() : a(0) {}
+  ~S() {}
+  int a;
+  int f() { return 0; }
+  virtual int v() { return 0; }
+};
+
+struct T : S {
+  T() : b(0) {}
+  int b;
+  int g() { return 0; }
+  virtual int v() { return 1; }
+};
+
+struct U : S, T { virtual int v() { return 2; } };
+
+int main(int, char **argv) {
+  T t;
+  (void)t.a;
+  (void)t.b;
+  (void)t.f();
+  (void)t.g();
+  (void)t.v();
+  (void)t.S::v();
+
+  U u;
+  (void)u.T::a;
+  (void)u.b;
+  (void)u.T::f();
+  (void)u.g();
+  (void)u.v();
+  (void)u.T::v();
+  (void)((T&)u).S::v();
+
+  T *p = 0;
+  char Buffer[sizeof(U)] = {};
+  switch (argv[1][1]) {
+  case '0':
+    p = reinterpret_cast<T*>(Buffer);
+    break;
+  case 'S':
+    p = reinterpret_cast<T*>(new S);
+    break;
+  case 'T':
+    p = new T;
+    break;
+  case 'U':
+    p = new U;
+    break;
+  case 'V':
+    p = reinterpret_cast<T*>(new U);
+    break;
+  }
+
+  switch (argv[1][0]) {
+  case 'r':
+    // Binding a reference to storage of appropriate size and alignment is OK.
+    {T &r = *p;}
+    break;
+
+  case 'm':
+    // CHECK-MEMBER: vptr.cpp:[[@LINE+5]]:15: runtime error: member access within address [[PTR:0x[0-9a-f]*]] which does not point to an object of type 'T'
+    // CHECK-MEMBER-NEXT: [[PTR]]: note: object is of type [[DYN_TYPE:'S'|'U']]
+    // CHECK-MEMBER-NEXT: {{^ .. .. .. ..  .. .. .. .. .. .. .. ..  }}
+    // CHECK-MEMBER-NEXT: {{^              \^~~~~~~~~~~(~~~~~~~~~~~~)? *$}}
+    // CHECK-MEMBER-NEXT: {{^              vptr for}} [[DYN_TYPE]]
+    return p->b;
+
+    // CHECK-NULL-MEMBER: vptr.cpp:[[@LINE-2]]:15: runtime error: member access within address [[PTR:0x[0-9a-f]*]] which does not point to an object of type 'T'
+    // CHECK-NULL-MEMBER-NEXT: [[PTR]]: note: object has invalid vptr
+    // CHECK-NULL-MEMBER-NEXT: {{^ .. .. .. ..  00 00 00 00 00 00 00 00  }}
+    // CHECK-NULL-MEMBER-NEXT: {{^              \^~~~~~~~~~~(~~~~~~~~~~~~)? *$}}
+    // CHECK-NULL-MEMBER-NEXT: {{^              invalid vptr}}
+
+  case 'f':
+    // CHECK-MEMFUN: vptr.cpp:[[@LINE+5]]:12: runtime error: member call on address [[PTR:0x[0-9a-f]*]] which does not point to an object of type 'T'
+    // CHECK-MEMFUN-NEXT: [[PTR]]: note: object is of type [[DYN_TYPE:'S'|'U']]
+    // CHECK-MEMFUN-NEXT: {{^ .. .. .. ..  .. .. .. .. .. .. .. ..  }}
+    // CHECK-MEMFUN-NEXT: {{^              \^~~~~~~~~~~(~~~~~~~~~~~~)? *$}}
+    // CHECK-MEMFUN-NEXT: {{^              vptr for}} [[DYN_TYPE]]
+    return p->g();
+
+  case 'o':
+    // CHECK-OFFSET: vptr.cpp:[[@LINE+5]]:12: runtime error: member call on address [[PTR:0x[0-9a-f]*]] which does not point to an object of type 'U'
+    // CHECK-OFFSET-NEXT: 0x{{[0-9a-f]*}}: note: object is base class subobject at offset {{8|16}} within object of type [[DYN_TYPE:'U']]
+    // CHECK-OFFSET-NEXT: {{^ .. .. .. ..  .. .. .. .. .. .. .. ..  .. .. .. .. .. .. .. ..  .. .. .. .. .. .. .. ..  }}
+    // CHECK-OFFSET-NEXT: {{^              \^                        (                         ~~~~~~~~~~~~)?~~~~~~~~~~~ *$}}
+    // CHECK-OFFSET-NEXT: {{^                                       (                         )?vptr for}} 'T' base class of [[DYN_TYPE]]
+    return reinterpret_cast<U*>(p)->v() - 2;
+
+  case 'c':
+    // CHECK-DOWNCAST: vptr.cpp:[[@LINE+5]]:5: runtime error: downcast of address [[PTR:0x[0-9a-f]*]] which does not point to an object of type 'T'
+    // CHECK-DOWNCAST-NEXT: [[PTR]]: note: object is of type [[DYN_TYPE:'S'|'U']]
+    // CHECK-DOWNCAST-NEXT: {{^ .. .. .. ..  .. .. .. .. .. .. .. ..  }}
+    // CHECK-DOWNCAST-NEXT: {{^              \^~~~~~~~~~~(~~~~~~~~~~~~)? *$}}
+    // CHECK-DOWNCAST-NEXT: {{^              vptr for}} [[DYN_TYPE]]
+    static_cast<T*>(reinterpret_cast<S*>(p));
+    return 0;
+  }
+}