src/share/vm/compiler/compileBroker.cpp

rev 8632 : 6900757: minor bug fixes to LogCompilation tool
* improve internal error reporting (point to XML element causing trouble)
* fix comparator for sorting by name and start
* make tool more robust wrt. incorrect options and files not found
* make inlining decision output more clear
* adopt uncommon traps history printing
* properly mention compiler in generated logs
* add options for printing time stamps and omitting compilation IDs
* add option for comparing compilation logs
* overall code cleanup and API documentation

*** 499,510 ****
  void CompileTask::log_task(xmlStream* log) {
    Thread* thread = Thread::current();
    methodHandle method(thread, this->method());
    ResourceMark rm(thread);
  
!   // <task id='9' method='M' osr_bci='X' level='1' blocking='1' stamp='1.234'>
!   log->print(" compile_id='%d'", _compile_id);
    if (_osr_bci != CompileBroker::standard_entry_bci) {
      log->print(" compile_kind='osr'");  // same as nmethod::compile_kind
    } // else compile_kind='c2c'
    if (!method.is_null())  log->method(method);
    if (_osr_bci != CompileBroker::standard_entry_bci) {
--- 499,510 ----
  void CompileTask::log_task(xmlStream* log) {
    Thread* thread = Thread::current();
    methodHandle method(thread, this->method());
    ResourceMark rm(thread);
  
!   // <task compiler='Cx' id='9' method='M' osr_bci='X' level='1' blocking='1' stamp='1.234'>
!   log->print(" compiler='%s' compile_id='%d'", _comp_level <= CompLevel_full_profile ? "C1" : "C2", _compile_id);
    if (_osr_bci != CompileBroker::standard_entry_bci) {
      log->print(" compile_kind='osr'");  // same as nmethod::compile_kind
    } // else compile_kind='c2c'
    if (!method.is_null())  log->method(method);
    if (_osr_bci != CompileBroker::standard_entry_bci) {