1 // The waiting loop never exits via the normal
2 // path before the profile is dumped and the
3 // program is terminated. This tests checks
4 // that the entry of main is properly instrumented
5 // and has non-zero count.
6 
7 // RUN: %clang_pgogen -mllvm -do-counter-promotion=false -O2 -o %t %s
8 // RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
9 // RUN: llvm-profdata show -function main -counts  %t.profraw| FileCheck  %s
10 void exit(int);
11 
12 int __llvm_profile_dump(void);
13 void __llvm_profile_reset_counters(void);
14 
15 int g = 0;
doSth()16 __attribute__((noinline)) void doSth() {
17   g++;
18 
19   if (g > 10000) {
20     // dump profile and exit;
21     __llvm_profile_dump();
22     exit(0);
23   }
24 }
25 int errorcode = 0;
noerror()26 int noerror() { return (errorcode == 0); }
27 
main(int argc,const char * argv[])28 int main(int argc, const char *argv[]) {
29   //  waiting_loop
30   while (noerror()) {
31     doSth();
32   }
33 }
34 
35 // CHECK-LABEL: main
36 // CHECK: [10001, 1]
37