compiler-rt/test/cfi/stats.cpp

   1 // RUN: %clangxx_cfi %debug_info_flags -fsanitize-stats -o %t %s
   2 // RUN: env SANITIZER_STATS_PATH=%t.stats %run %t
   3 // RUN: sanstats %t.stats | FileCheck %s
   4
   5 // FIXME: We currently emit the wrong debug info under devirtualization.
   6 // UNSUPPORTED: devirt
   7
   8 // FIXME: %t.stats must be transferred from device to host for this to work on Android.
   9 // XFAIL: android
  10
  11 struct ABase {};
  12
  13 struct A : ABase {
  14   virtual void vf() {}
  15   void nvf() {}
  16 };
  17
  18 extern "C" __attribute__((noinline)) void vcall(A *a) {
  19   // CHECK: stats.cpp:[[@LINE+1]] {{_?}}vcall cfi-vcall 37
  20   a->vf();
  21 }
  22
  23 extern "C" __attribute__((noinline)) void nvcall(A *a) {
  24   // CHECK: stats.cpp:[[@LINE+1]] {{_?}}nvcall cfi-nvcall 51
  25   a->nvf();
  26 }
  27
  28 extern "C" __attribute__((noinline)) A *dcast(A *a) {
  29   // CHECK: stats.cpp:[[@LINE+1]] {{_?}}dcast cfi-derived-cast 24
  30   return (A *)(ABase *)a;
  31 }
  32
  33 extern "C" __attribute__((noinline)) A *ucast(A *a) {
  34   // CHECK: stats.cpp:[[@LINE+1]] {{_?}}ucast cfi-unrelated-cast 81
  35   return (A *)(char *)a;
  36 }
  37
  38 extern "C" __attribute__((noinline)) void unreachable(A *a) {
  39   // CHECK-NOT: unreachable
  40   a->vf();
  41 }
  42
  43 int main() {
  44   A a;
  45   for (unsigned i = 0; i != 37; ++i)
  46     vcall(&a);
  47   for (unsigned i = 0; i != 51; ++i)
  48     nvcall(&a);
  49   for (unsigned i = 0; i != 24; ++i)
  50     dcast(&a);
  51   for (unsigned i = 0; i != 81; ++i)
  52     ucast(&a);
  53   for (unsigned i = 0; i != 0; ++i)
  54     unreachable(&a);
  55 }