src/libcompiler_builtins/compiler-rt/test/dfsan/basic.c

   1 // RUN: %clang_dfsan %s -o %t && %run %t
   2 // RUN: %clang_dfsan -mllvm -dfsan-args-abi %s -o %t && %run %t
   3
   4 // Tests that labels are propagated through loads and stores.
   5
   6 #include <sanitizer/dfsan_interface.h>
   7 #include <assert.h>
   8
   9 int main(void) {
  10   int i = 1;
  11   dfsan_label i_label = dfsan_create_label("i", 0);
  12   dfsan_set_label(i_label, &i, sizeof(i));
  13
  14   dfsan_label new_label = dfsan_get_label(i);
  15   assert(i_label == new_label);
  16
  17   dfsan_label read_label = dfsan_read_label(&i, sizeof(i));
  18   assert(i_label == read_label);
  19
  20   dfsan_label j_label = dfsan_create_label("j", 0);
  21   dfsan_add_label(j_label, &i, sizeof(i));
  22
  23   read_label = dfsan_read_label(&i, sizeof(i));
  24   assert(dfsan_has_label(read_label, i_label));
  25   assert(dfsan_has_label(read_label, j_label));
  26
  27   return 0;
  28 }