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8024070: C2 needs some form of type speculation

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Record unused type profile information with type system, propagate and use it.

Reviewed-by: kvn, twisti
This commit is contained in:
Roland Westrelin 2013-10-23 12:40:23 +02:00
parent ceb177b16f
commit 1b5bd82335
22 changed files with 1429 additions and 144 deletions
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4
hotspot/src/share/vm/opto/parse1.cpp
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@ -1102,6 +1102,10 @@ void Parse::do_method_entry() {
_synch_lock = shared_lock(lock_obj);
}
// Feed profiling data for parameters to the type system so it can
// propagate it as speculative types
record_profiled_parameters_for_speculation();
if (depth() == 1) {
increment_and_test_invocation_counter(Tier2CompileThreshold);
}