/*
* Copyright (c) 2016, 2018, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package jdk.tools.jaotc;
import org.graalvm.compiler.bytecode.Bytecodes;
import jdk.vm.ci.code.BytecodePosition;
import jdk.vm.ci.code.site.Call;
import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
import jdk.vm.ci.meta.ResolvedJavaMethod;
final class CallInfo {
static boolean isStaticTarget(Call call) {
return !((HotSpotResolvedJavaMethod) call.target).hasReceiver();
}
private static boolean isStaticOpcode(Call call) {
int opcode = getByteCode(call) & 0xFF;
return opcode == Bytecodes.INVOKESTATIC || opcode == Bytecodes.INVOKEDYNAMIC || opcode == Bytecodes.INVOKEVIRTUAL /* invokehandle */;
}
static boolean isStaticCall(Call call) {
if (isJavaCall(call) && isStaticTarget(call)) {
assert isStaticOpcode(call);
return true;
}
return false;
}
static boolean isSpecialCall(Call call) {
if (isJavaCall(call)) {
return ((getByteCode(call) & 0xFF) == Bytecodes.INVOKESPECIAL);
}
return false;
}
private static boolean isInvokeVirtual(Call call) {
if (isJavaCall(call)) {
return ((getByteCode(call) & 0xFF) == Bytecodes.INVOKEVIRTUAL) || ((getByteCode(call) & 0xFF) == Bytecodes.INVOKEINTERFACE);
}
return false;
}
static boolean isVirtualCall(CompiledMethodInfo methodInfo, Call call) {
return isInvokeVirtual(call) && !methodInfo.hasMark(call, MarkId.INVOKESPECIAL) && !isStaticTarget(call);
}
static boolean isOptVirtualCall(CompiledMethodInfo methodInfo, Call call) {
return isInvokeVirtual(call) && methodInfo.hasMark(call, MarkId.INVOKESPECIAL);
}
private static boolean isJavaCall(Call call) {
// If there is no associated debug info return false
if (call.debugInfo == null) {
return false;
}
BytecodePosition bcpos = call.debugInfo.getBytecodePosition();
ResolvedJavaMethod method = bcpos.getMethod();
// If bytecode position indicates a special value (negative value) it is
// not a normal java call
if (bcpos.getBCI() < 0) {
return false;
}
// If there is no method associated with the debuginfo, return false
if (method == null) {
return false;
}
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