/**
* Initialize boot image compiler.
*
* @param args command line arguments to the bootimage compiler
*/
protected void initCompiler(String[] args) {
try {
BaselineCompiler.initOptions();
VM.sysWrite("BootImageCompiler: init (opt compiler)\n");
// Writing a boot image is a little bit special. We're not really
// concerned about compile time, but we do care a lot about the quality
// and stability of the generated code. Set the options accordingly.
OptimizingCompiler.setBootOptions(masterOptions);
// Allow further customization by the user.
for (int i = 0, n = args.length; i < n; i++) {
String arg = args[i];
if (!masterOptions.processAsOption("-X:bc:", arg)) {
if (arg.startsWith("exclude=")) {
excludePattern = arg.substring(8);
} else {
VM.sysWrite("BootImageCompiler: Unrecognized argument " + arg + "; ignoring\n");
}
}
}
EdgeCounts.loadCountsFromFileIfAvailable(masterOptions.PROFILE_EDGE_COUNT_INPUT_FILE);
OptimizingCompiler.init(masterOptions);
} catch (OptimizingCompilerException e) {
String msg = "BootImageCompiler: Compiler failed during initialization: " + e + "\n";
if (e.isFatal) {
// An unexpected error when building the opt boot image should be fatal
e.printStackTrace();
System.exit(VM.EXIT_STATUS_OPT_COMPILER_FAILED);
} else {
VM.sysWrite(msg);
}
}
}
/**
* Compile a method with bytecodes.
*
* @param method the method to compile
* @return the compiled method
*/
protected CompiledMethod compileMethod(NormalMethod method, TypeReference[] params) {
if (method.hasNoOptCompileAnnotation()) {
return baselineCompile(method);
} else {
CompiledMethod cm = null;
OptimizingCompilerException escape = new OptimizingCompilerException(false);
try {
Callbacks.notifyMethodCompile(method, CompiledMethod.OPT);
boolean include = match(method);
if (!include) {
throw escape;
}
int freeOptimizationPlan = getFreeOptimizationPlan();
OptimizationPlanElement[] optimizationPlan = optimizationPlans.get(freeOptimizationPlan);
CompilationPlan cp =
new CompilationPlan(
method, params, optimizationPlan, null, options.get(freeOptimizationPlan));
cm = OptimizingCompiler.compile(cp);
if (VM.BuildForAdaptiveSystem) {
/* We can't accurately measure compilation time on Host JVM, so just approximate with DNA */
int compilerId = CompilerDNA.getCompilerConstant(cp.options.getOptLevel());
cm.setCompilationTime((float) CompilerDNA.estimateCompileTime(compilerId, method));
}
releaseOptimizationPlan(freeOptimizationPlan);
return cm;
} catch (OptimizingCompilerException e) {
if (e.isFatal) {
// An unexpected error when building the opt boot image should be fatal
VM.sysWriteln("Error compiling method: " + method);
e.printStackTrace();
System.exit(VM.EXIT_STATUS_OPT_COMPILER_FAILED);
} else {
boolean printMsg = true;
if (e instanceof MagicNotImplementedException) {
printMsg = !((MagicNotImplementedException) e).isExpected;
}
if (e == escape) {
printMsg = false;
}
if (printMsg) {
if (e.toString().indexOf("method excluded") >= 0) {
String msg = "BootImageCompiler: " + method + " excluded from opt-compilation\n";
VM.sysWrite(msg);
} else {
String msg =
"BootImageCompiler: can't optimize \"" + method + "\" (error was: " + e + ")\n";
VM.sysWrite(msg);
}
}
}
return baselineCompile(method);
}
}
}