compiler-rt/test/msan/Linux/bzero.cpp

   1 // RUN: %clangxx_msan -O0 %s -o %t && %run %t
   2
   3 // REQUIRES: !android
   4
   5 #include <assert.h>
   6 #include <strings.h>
   7 #include <sanitizer/msan_interface.h>
   8
   9 int main(int argc, char *argv[]) {
  10   char buf[100];
  11   assert(0 == __msan_test_shadow(buf, sizeof(buf)));
  12   // *& to suppress bzero-to-memset optimization.
  13   (*&bzero)(buf, 50);
  14   assert(50 == __msan_test_shadow(buf, sizeof(buf)));
  15   return 0;
  16 }