compiler-rt/test/dfsan/basic.c

   1 // RUN: %clang_dfsan %s -o %t && %run %t
   2
   3 // Tests that labels are propagated through loads and stores.
   4
   5 #include <sanitizer/dfsan_interface.h>
   6 #include <assert.h>
   7
   8 int main(void) {
   9   int i = 1;
  10   dfsan_label i_label = 1;
  11   dfsan_set_label(i_label, &i, sizeof(i));
  12
  13   dfsan_label new_label = dfsan_get_label(i);
  14   assert(i_label == new_label);
  15
  16   dfsan_label read_label = dfsan_read_label(&i, sizeof(i));
  17   assert(i_label == read_label);
  18
  19   dfsan_label j_label = 2;
  20   dfsan_add_label(j_label, &i, sizeof(i));
  21
  22   read_label = dfsan_read_label(&i, sizeof(i));
  23   assert(dfsan_has_label(read_label, i_label));
  24   assert(dfsan_has_label(read_label, j_label));
  25
  26   return 0;
  27 }