Error CodeGen::setError(Error error, const char* message) {
if (error == kErrorOk) {
_error = kErrorOk;
return kErrorOk;
}
if (message == NULL) {
#if !defined(ASMJIT_DISABLE_NAMES)
message = ErrorUtil::asString(error);
#else
static const char noMessage[] = "";
message = noMessage;
#endif // ASMJIT_DISABLE_NAMES
}
// Error handler is called before logger so logging can be skipped if error
// has been handled.
ErrorHandler* handler = _errorHandler;
ASMJIT_TLOG("[ERROR] %s %s\n", message, !handler ? "(Possibly unhandled?)" : "");
if (handler != NULL && handler->handleError(error, message))
return error;
#if !defined(ASMJIT_DISABLE_LOGGER)
Logger* logger = _logger;
if (logger != NULL) {
logger->logFormat(kLoggerStyleComment,
"*** ERROR: %s (%u).\n", message, static_cast<unsigned int>(error));
}
#endif // !ASMJIT_DISABLE_LOGGER
// The handler->handleError() function may throw an exception or longjmp()
// to terminate the execution of setError(). This is the reason why we have
// delayed changing the _error member until now.
_error = error;
return error;
}
Error Context::removeUnreachableCode() {
Compiler* compiler = getCompiler();
PodList<HLNode*>::Link* link = _unreachableList.getFirst();
HLNode* stop = getStop();
while (link != NULL) {
HLNode* node = link->getValue();
if (node != NULL && node->getPrev() != NULL && node != stop) {
// Locate all unreachable nodes.
HLNode* first = node;
do {
if (node->isFetched())
break;
node = node->getNext();
} while (node != stop);
// Remove unreachable nodes that are neither informative nor directives.
if (node != first) {
HLNode* end = node;
node = first;
do {
HLNode* next = node->getNext();
if (!node->isInformative() && node->getType() != kHLNodeTypeAlign) {
ASMJIT_TLOG("[%05d] Unreachable\n", node->getFlowId());
compiler->removeNode(node);
}
node = next;
} while (node != end);
}
}
link = link->getNext();
}
return kErrorOk;
}