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8150669: C1 intrinsic for Class.isPrimitive

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Reviewed-by: twisti, vlivanov, redestad
This commit is contained in:
Aleksey Shipilev 2016-03-03 22:17:38 +03:00
parent c40e7bc21f
commit 890f94d7e6
5 changed files with 200 additions and 1 deletions
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20
hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
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@ -1293,6 +1293,25 @@ void LIRGenerator::do_getClass(Intrinsic* x) {
__ move_wide(new LIR_Address(temp, in_bytes(Klass::java_mirror_offset()), T_OBJECT), result);
}
// java.lang.Class::isPrimitive()
void LIRGenerator::do_isPrimitive(Intrinsic* x) {
assert(x->number_of_arguments() == 1, "wrong type");
LIRItem rcvr(x->argument_at(0), this);
rcvr.load_item();
LIR_Opr temp = new_register(T_METADATA);
LIR_Opr result = rlock_result(x);
CodeEmitInfo* info = NULL;
if (x->needs_null_check()) {
info = state_for(x);
}
__ move(new LIR_Address(rcvr.result(), java_lang_Class::klass_offset_in_bytes(), T_ADDRESS), temp, info);
__ cmp(lir_cond_notEqual, temp, LIR_OprFact::intConst(0));
__ cmove(lir_cond_notEqual, LIR_OprFact::intConst(0), LIR_OprFact::intConst(1), result, T_BOOLEAN);
}
// Example: Thread.currentThread()
void LIRGenerator::do_currentThread(Intrinsic* x) {
@ -3132,6 +3151,7 @@ void LIRGenerator::do_Intrinsic(Intrinsic* x) {
case vmIntrinsics::_Object_init: do_RegisterFinalizer(x); break;
case vmIntrinsics::_isInstance: do_isInstance(x); break;
case vmIntrinsics::_isPrimitive: do_isPrimitive(x); break;
case vmIntrinsics::_getClass: do_getClass(x); break;
case vmIntrinsics::_currentThread: do_currentThread(x); break;