compiler-rt/test/profile/instrprof-set-file-object-merging.c

   1 // Test that the specified output merges the profiling data.
   2 // Run the program twice so that the counters accumulate.
   3 // RUN: %clang_profgen -fcoverage-mapping -o %t %s
   4 // RUN: rm -f %t.merging.profraw %t.merging.profdata
   5 // RUN: %run %t %t.merging.profraw
   6 // RUN: %run %t %t.merging.profraw
   7 // RUN: test -f %t.merging.profraw
   8 // RUN: llvm-profdata merge -o %t.merging.profdata %t.merging.profraw
   9 // RUN: llvm-cov show -instr-profile %t.merging.profdata %t | FileCheck %s --match-full-lines
  10 #include <stdio.h>
  11
  12 extern void __llvm_profile_set_file_object(FILE *, int);
  13
  14 int main(int argc, const char *argv[]) {
  15   if (argc < 2)
  16     return 1;
  17
  18   FILE *F = fopen(argv[1], "r+b");
  19   if (!F) {
  20     // File might not exist, try opening with truncation
  21     F = fopen(argv[1], "w+b");
  22   }
  23   __llvm_profile_set_file_object(F, 1);
  24
  25   return 0;
  26 }
  27 // CHECK:   10|       |#include <stdio.h>
  28 // CHECK:   11|       |
  29 // CHECK:   12|       |extern void __llvm_profile_set_file_object(FILE *, int);
  30 // CHECK:   13|       |
  31 // CHECK:   14|      2|int main(int argc, const char *argv[]) {
  32 // CHECK:   15|      2|  if (argc < 2)
  33 // CHECK:   16|      0|    return 1;
  34 // CHECK:   17|       |
  35 // CHECK:   18|      2|  FILE *F = fopen(argv[1], "r+b");
  36 // CHECK:   19|      2|  if (!F) {
  37 // CHECK:   20|       |    // File might not exist, try opening with truncation
  38 // CHECK:   21|      1|    F = fopen(argv[1], "w+b");
  39 // CHECK:   22|      1|  }
  40 // CHECK:   23|      2|  __llvm_profile_set_file_object(F, 1);
  41 // CHECK:   24|       |
  42 // CHECK:   25|      2|  return 0;
  43 // CHECK:   26|      2|}