6384206: Phis which are later unneeded are impairing our ability to inline based on static types
Reviewed-by: rasbold, jrose
/*
* Copyright 1999-2005 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
#include "incls/_precompiled.incl"
#include "incls/_ciArrayKlass.cpp.incl"
// ciArrayKlass
//
// This class represents a klassOop in the HotSpot virtual machine
// whose Klass part in an arrayKlass.
// ------------------------------------------------------------------
// ciArrayKlass::ciArrayKlass
//
// Loaded array klass.
ciArrayKlass::ciArrayKlass(KlassHandle h_k) : ciKlass(h_k) {
assert(get_Klass()->oop_is_array(), "wrong type");
_dimension = get_arrayKlass()->dimension();
}
// ------------------------------------------------------------------
// ciArrayKlass::ciArrayKlass
//
// Unloaded array klass.
ciArrayKlass::ciArrayKlass(ciSymbol* name, int dimension, ciKlass* klass)
: ciKlass(name, klass) {
_dimension = dimension;
}
// ------------------------------------------------------------------
// ciArrayKlass::element_type
//
// What type is obtained when this array is indexed once?
ciType* ciArrayKlass::element_type() {
if (is_type_array_klass()) {
return ciType::make(as_type_array_klass()->element_type());
} else {
return as_obj_array_klass()->element_klass()->as_klass();
}
}
// ------------------------------------------------------------------
// ciArrayKlass::base_element_type
//
// What type is obtained when this array is indexed as many times as possible?
ciType* ciArrayKlass::base_element_type() {
if (is_type_array_klass()) {
return ciType::make(as_type_array_klass()->element_type());
} else {
ciKlass* ek = as_obj_array_klass()->base_element_klass();
if (ek->is_type_array_klass()) {
return ciType::make(ek->as_type_array_klass()->element_type());
}
return ek;
}
}
// ------------------------------------------------------------------
// ciArrayKlass::is_leaf_type
bool ciArrayKlass::is_leaf_type() {
if (is_type_array_klass()) {
return true;
} else {
return as_obj_array_klass()->base_element_klass()->is_leaf_type();
}
}
// ------------------------------------------------------------------
// ciArrayKlass::base_element_type
//
// What type is obtained when this array is indexed as many times as possible?
ciArrayKlass* ciArrayKlass::make(ciType* element_type) {
if (element_type->is_primitive_type()) {
return ciTypeArrayKlass::make(element_type->basic_type());
} else {
return ciObjArrayKlass::make(element_type->as_klass());
}
}