419     run_compilation     = 1,
 420     shutdown_compilaton = 2
 421   };
 422 
 423   static bool should_compile_new_jobs() { return UseCompiler && (_should_compile_new_jobs == run_compilation); }
 424   static bool set_should_compile_new_jobs(jint new_state) {
 425     // Return success if the current caller set it
 426     jint old = Atomic::cmpxchg(new_state, &_should_compile_new_jobs, 1-new_state);
 427     return (old == (1-new_state));
 428   }
 429 
 430   static void disable_compilation_forever() {
 431     UseCompiler               = false;
 432     AlwaysCompileLoopMethods  = false;
 433     Atomic::xchg(shutdown_compilaton, &_should_compile_new_jobs);
 434   }
 435 
 436   static bool is_compilation_disabled_forever() {
 437     return _should_compile_new_jobs == shutdown_compilaton;
 438   }
 439   static void handle_full_code_cache();
 440   // Ensures that warning is only printed once.
 441   static bool should_print_compiler_warning() {
 442     jint old = Atomic::cmpxchg(1, &_print_compilation_warning, 0);
 443     return old == 0;
 444   }
 445   // Return total compilation ticks
 446   static jlong total_compilation_ticks() {
 447     return _perf_total_compilation != NULL ? _perf_total_compilation->get_value() : 0;
 448   }
 449 
 450   // Redefine Classes support
 451   static void mark_on_stack();
 452 
 453   // Print a detailed accounting of compilation time
 454   static void print_times();
 455 
 456   // Debugging output for failure
 457   static void print_last_compile();
 458 
 459   static void print_compiler_threads_on(outputStream* st);

 419     run_compilation     = 1,
 420     shutdown_compilaton = 2
 421   };
 422 
 423   static bool should_compile_new_jobs() { return UseCompiler && (_should_compile_new_jobs == run_compilation); }
 424   static bool set_should_compile_new_jobs(jint new_state) {
 425     // Return success if the current caller set it
 426     jint old = Atomic::cmpxchg(new_state, &_should_compile_new_jobs, 1-new_state);
 427     return (old == (1-new_state));
 428   }
 429 
 430   static void disable_compilation_forever() {
 431     UseCompiler               = false;
 432     AlwaysCompileLoopMethods  = false;
 433     Atomic::xchg(shutdown_compilaton, &_should_compile_new_jobs);
 434   }
 435 
 436   static bool is_compilation_disabled_forever() {
 437     return _should_compile_new_jobs == shutdown_compilaton;
 438   }
 439   static void handle_full_code_cache(int code_blob_type);
 440   // Ensures that warning is only printed once.
 441   static bool should_print_compiler_warning() {
 442     jint old = Atomic::cmpxchg(1, &_print_compilation_warning, 0);
 443     return old == 0;
 444   }
 445   // Return total compilation ticks
 446   static jlong total_compilation_ticks() {
 447     return _perf_total_compilation != NULL ? _perf_total_compilation->get_value() : 0;
 448   }
 449 
 450   // Redefine Classes support
 451   static void mark_on_stack();
 452 
 453   // Print a detailed accounting of compilation time
 454   static void print_times();
 455 
 456   // Debugging output for failure
 457   static void print_last_compile();
 458 
 459   static void print_compiler_threads_on(outputStream* st);