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8028064: tiered may collect wrong receiver type at virtual call

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When unique callee is known at compile time, recorded class may be wrong

Reviewed-by: kvn, iveresov
This commit is contained in:
Roland Westrelin 2014-01-07 14:36:34 +01:00
parent 7c32ed31d2
commit e9b5199781
1 changed files with 8 additions and 4 deletions
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12
hotspot/src/share/vm/c1/c1_GraphBuilder.cpp
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@ -4338,11 +4338,15 @@ void GraphBuilder::print_stats() {
#endif // PRODUCT
void GraphBuilder::profile_call(ciMethod* callee, Value recv, ciKlass* known_holder, Values* obj_args, bool inlined) {
// A default method's holder is an interface
if (known_holder != NULL && known_holder->is_interface()) {
assert(known_holder->is_instance_klass() && ((ciInstanceKlass*)known_holder)->has_default_methods(), "should be default method");
known_holder = NULL;
assert(known_holder == NULL || (known_holder->is_instance_klass() &&
(!known_holder->is_interface() ||
((ciInstanceKlass*)known_holder)->has_default_methods())), "should be default method");
if (known_holder != NULL) {
if (known_holder->exact_klass() == NULL) {
known_holder = compilation()->cha_exact_type(known_holder);
}
}
append(new ProfileCall(method(), bci(), callee, recv, known_holder, obj_args, inlined));
}