compiler-rt/test/profile/instrprof-get-filename.c

   1 // Test __llvm_profile_get_filename.
   2 // RUN: %clang_pgogen -O2 -o %t %s
   3 // RUN: %run %t
   4
   5 #include <stdio.h>
   6 #include <string.h>
   7
   8 const char *__llvm_profile_get_filename();
   9 void __llvm_profile_set_filename(const char *);
  10
  11 int main(int argc, const char *argv[]) {
  12   int i;
  13   const char *filename;
  14   const char *new_filename = "/path/to/test.profraw";
  15
  16   filename = __llvm_profile_get_filename();
  17   if (strncmp(filename, "default_", 8)) {
  18     fprintf(stderr,
  19             "Error: got filename %s, expected it to start with 'default_'\n",
  20             filename);
  21     return 1;
  22   }
  23   if (strcmp(filename + strlen(filename) - strlen(".profraw"), ".profraw")) {
  24     fprintf(stderr,
  25             "Error: got filename %s, expected it to end with '.profraw'\n",
  26             filename);
  27     return 1;
  28   }
  29
  30   __llvm_profile_set_filename(new_filename);
  31   filename = __llvm_profile_get_filename();
  32   if (strcmp(filename, new_filename)) {
  33     fprintf(stderr, "Error: got filename %s, expected '%s'\n", filename,
  34             new_filename);
  35     return 1;
  36   }
  37
  38   return 0;
  39 }