oop* InterpretedIC::inline_cache_miss() {
NoGCVerifier noGC;
// get ic info
frame f = DeltaProcess::active()->last_frame();
InterpretedIC* ic = f.current_interpretedIC();
Bytecodes::Code send_code = ic->send_code();
oop receiver = ic->argument_spec() == Bytecodes::args_only // Are we at a self or super send?
? f.receiver() // yes: take receiver of frame
: f.expr(ic->nof_arguments()); // no: take receiver pushed before the arguments
// do the lookup
klassOop klass = receiver->klass();
LookupResult result = Bytecodes::is_super_send(send_code)
? interpreter_super_lookup(ic->selector())
: interpreter_normal_lookup(klass, ic->selector());
// tracing
if (TraceInlineCacheMiss) {
std->print("IC miss, "); trace_inline_cache_miss(ic, klass, result);
}
// handle the lookup result
if (!result.is_empty()) {
update_inline_cache(ic, &f, ic->send_code(), klass, result);
return NULL;
} else {
return cacheMissResult(does_not_understand(receiver, ic, &f),
ic->nof_arguments() + (ic->argument_spec() == Bytecodes::args_only ? 0 : 1))->objs(1);
}
}
void InterpretedIC::inline_cache_miss() {
NoGCVerifier noGC;
// get ic info
frame f = DeltaProcess::active()->last_frame();
InterpretedIC* ic = f.current_interpretedIC();
Bytecodes::Code send_code = ic->send_code();
oop receiver = ic->argument_spec() == Bytecodes::args_only // Are we at a self or super send?
? f.receiver() // yes: take receiver of frame
: f.expr(ic->nof_arguments()); // no: take receiver pushed before the arguments
// do the lookup
klassOop klass = receiver->klass();
LookupResult result = Bytecodes::is_super_send(send_code)
? interpreter_super_lookup(ic->selector())
: interpreter_normal_lookup(klass, ic->selector());
// tracing
if (TraceMessageSend) std->print_cr("inline cache miss");
if (TraceLookup) trace_inline_cache_miss(ic, klass, result);
// handle the lookup result
if (!result.is_empty())
update_inline_cache(ic, &f, send_code, klass, result);
else {
does_not_understand(receiver, ic, &f);
// If the program continues we'll redo the inline_cache_miss
if (!have_nlr_through_C) inline_cache_miss();
}
}
void PerformanceDebugger::report_block(Node* n, BlockPReg* blk, const char* what) {
if (!DebugPerformance) return;
if (blocks->contains(blk)) return;
if (blk->method()->is_clean_block()) return;
Reporter r(this);
str->print(" could not eliminate block in ");
blk->method()->home()->selector()->print_symbol_on(str);
str->print(" because it is %s in scope %s at bytecode %d",
what, n->scope()->key()->print_string(), n->bci());
InterpretedIC* ic = n->scope()->method()->ic_at(n->bci());
if (ic) str->print(" (send of %s)", ic->selector()->copy_null_terminated());
str->print("\n");
blocks->append(blk);
}
