-/* Set to true if the pass is called the first time during compilation of the
- current function. Note that using this information in the optimization
- passes is considered not to be clean, and it should be avoided if possible.
- This flag is currently used to prevent loops from being peeled repeatedly
- in jump threading; it will be removed once we preserve loop structures
- throughout the compilation -- we will be able to mark the affected loops
- directly in jump threading, and avoid peeling them next time. */
-extern bool first_pass_instance;
-