| // gcc -g -O2 -freorder-blocks-and-partition | |
| const char *arr[10000]; | |
| const char *hot = "hot"; | |
| const char *cold = "cold"; | |
| __attribute__((noinline)) | |
| void fn(int path) { | |
| int i; | |
| if (path) { | |
| for (i = 0; i < sizeof arr / sizeof arr[0]; i++) { | |
| arr[i] = hot; | |
| } | |
| } else { | |
| for (i = 0; i < sizeof arr / sizeof arr[0]; i++) { | |
| arr[i] = cold; | |
| } | |
| } | |
| } | |
| int main(int argc, char *argv[]) { | |
| fn(argc); | |
| return 0; | |
| } |