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      1 // RUN: %clang_profgen -o %t -O3 %s
      2 // RUN: env LLVM_PROFILE_FILE=%t/  %run %t 1 2>&1 | FileCheck %s
      3 
      4 int main(int argc, const char *argv[]) {
      5   if (argc < 2)
      6     return 1;
      7   return 0;
      8 }
      9 // CHECK: LLVM Profile Error: Failed to write file
     10