1  // gcc -g -O2 -freorder-blocks-and-partition
       2  
       3  const char *arr[10000];
       4  const char *hot = "hot";
       5  const char *cold = "cold";
       6  
       7  __attribute__((noinline))
       8  void fn(int path) {
       9  	int i;
      10  
      11  	if (path) {
      12  		for (i = 0; i < sizeof arr / sizeof arr[0]; i++) {
      13  			arr[i] = hot;
      14  		}
      15  	} else {
      16  		for (i = 0; i < sizeof arr / sizeof arr[0]; i++) {
      17  			arr[i] = cold;
      18  		}
      19  	}
      20  }
      21  
      22  int main(int argc, char *argv[]) {
      23  	fn(argc);
      24  	return 0;
      25  }