/*
 * Copyright (c) 2012, 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */


package org.graalvm.compiler.lir.asm;

Code for managing a method's native frame.
/** * Code for managing a method's native frame. */
public interface FrameContext {
Emits code common to all entry points of a method. This may include:
  • setting up the stack frame
  • saving callee-saved registers
  • stack overflow checking
/** * Emits code common to all entry points of a method. This may include: * <ul> * <li>setting up the stack frame</li> * <li>saving callee-saved registers</li> * <li>stack overflow checking</li> * </ul> */
void enter(CompilationResultBuilder crb);
Emits code to be executed just prior to returning from a method. This may include:
  • restoring callee-saved registers
  • performing a safepoint
  • destroying the stack frame
/** * Emits code to be executed just prior to returning from a method. This may include: * <ul> * <li>restoring callee-saved registers</li> * <li>performing a safepoint</li> * <li>destroying the stack frame</li> * </ul> */
void leave(CompilationResultBuilder crb);
Determines if a frame is set up and torn down by this object.
/** * Determines if a frame is set up and torn down by this object. */
boolean hasFrame(); }