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8023657: New type profiling points: arguments to call

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X86 interpreter and c1 type profiling for arguments at calls

Reviewed-by: kvn, twisti
This commit is contained in:
Roland Westrelin 2013-10-09 16:32:21 +02:00
parent b90addac58
commit cbd0e9bf96
40 changed files with 1773 additions and 238 deletions
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9
hotspot/src/share/vm/c1/c1_Optimizer.cpp
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@ -657,6 +657,7 @@ class NullCheckEliminator: public ValueVisitor {
void handle_Intrinsic (Intrinsic* x);
void handle_ExceptionObject (ExceptionObject* x);
void handle_Phi (Phi* x);
void handle_ProfileCall (ProfileCall* x);
};
@ -715,7 +716,8 @@ void NullCheckVisitor::do_UnsafePutObject(UnsafePutObject* x) {}
void NullCheckVisitor::do_UnsafeGetAndSetObject(UnsafeGetAndSetObject* x) {}
void NullCheckVisitor::do_UnsafePrefetchRead (UnsafePrefetchRead* x) {}
void NullCheckVisitor::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) {}
void NullCheckVisitor::do_ProfileCall (ProfileCall* x) { nce()->clear_last_explicit_null_check(); }
void NullCheckVisitor::do_ProfileCall (ProfileCall* x) { nce()->clear_last_explicit_null_check();
nce()->handle_ProfileCall(x); }
void NullCheckVisitor::do_ProfileInvoke (ProfileInvoke* x) {}
void NullCheckVisitor::do_RuntimeCall (RuntimeCall* x) {}
void NullCheckVisitor::do_MemBar (MemBar* x) {}
@ -1134,6 +1136,11 @@ void NullCheckEliminator::handle_Phi(Phi* x) {
}
}
void NullCheckEliminator::handle_ProfileCall(ProfileCall* x) {
for (int i = 0; i < x->nb_profiled_args(); i++) {
x->set_arg_needs_null_check(i, !set_contains(x->profiled_arg_at(i)));
}
}
void Optimizer::eliminate_null_checks() {
ResourceMark rm;