Mercurial > hg > truffle
view graal/GraalCompiler/src/com/sun/c1x/ir/NativeCall.java @ 2509:16b9a8b5ad39
Renamings Runtime=>GraalRuntime and Compiler=>GraalCompiler
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 11:50:44 +0200 |
parents | graal/Compiler/src/com/sun/c1x/ir/NativeCall.java@9ec15d6914ca |
children |
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/* * Copyright (c) 2010, 2011, 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 * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.c1x.ir; import com.sun.c1x.debug.*; import com.sun.c1x.value.*; import com.sun.cri.ri.*; /** * Represents a call to a native function from within a native method stub. * * @author Doug Simon */ public final class NativeCall extends StateSplit { /** * The instruction that produces the native function address for this native call. */ private Value address; /** * The native method for this native call. */ public final RiMethod nativeMethod; /** * The signature of the call which is derived from {@link #nativeMethod} but is not * the same as its {@linkplain RiMethod#signature() signature}. */ public final RiSignature signature; /** * The list of instructions that produce the arguments for this native call. */ public final Value[] arguments; /** * Constructs a new NativeCall instruction. * * @param nativeMethod TODO * @param signature TODO * @param address TODO * @param args the list of instructions producing arguments to the invocation * @param stateBefore the state before executing the invocation */ public NativeCall(RiMethod nativeMethod, RiSignature signature, Value address, Value[] args, FrameState stateBefore) { super(signature.returnKind().stackKind(), stateBefore); this.address = address; this.nativeMethod = nativeMethod; this.arguments = args; this.signature = signature; assert nativeMethod.jniSymbol() != null; } /** * The native function may call back into the VM which may call method that can trap. */ @Override public boolean canTrap() { return true; } /** * Gets the instruction that produces the native function address for this native call. * @return the instruction */ public Value address() { return address; } @Override public void inputValuesDo(ValueClosure closure) { for (int i = 0; i < arguments.length; i++) { Value arg = arguments[i]; if (arg != null) { arguments[i] = closure.apply(arg); assert arguments[i] != null; } } address = closure.apply(address); } @Override public void accept(ValueVisitor v) { v.visitNativeCall(this); } @Override public void print(LogStream out) { out.print(nativeMethod.jniSymbol()).print('('); for (int i = 0; i < arguments.length; i++) { if (i > 0) { out.print(", "); } out.print(arguments[i]); } out.print(')'); } }