| /* |
| * Copyright (c) 2016, 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.profiling; |
| |
| import static jdk.vm.ci.code.ValueUtil.isRegister; |
| import static jdk.vm.ci.code.ValueUtil.isStackSlot; |
| |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.lir.StandardOp.LoadConstantOp; |
| import org.graalvm.compiler.lir.StandardOp.MoveOp; |
| import org.graalvm.compiler.lir.StandardOp.ValueMoveOp; |
| |
| import jdk.vm.ci.meta.AllocatableValue; |
| import jdk.vm.ci.meta.Value; |
| |
| enum MoveType { |
| REG2REG("Reg", "Reg"), |
| STACK2REG("Reg", "Stack"), |
| CONST2REG("Reg", "Const"), |
| REG2STACK("Stack", "Reg"), |
| CONST2STACK("Stack", "Const"), |
| STACK2STACK("Stack", "Stack"); |
| |
| private final String name; |
| |
| MoveType(String dst, String src) { |
| this.name = src + '2' + dst; |
| } |
| |
| @Override |
| public String toString() { |
| return name; |
| } |
| |
| public static MoveType get(MoveOp move) { |
| AllocatableValue dst = move.getResult(); |
| Value src = null; |
| if (move instanceof LoadConstantOp) { |
| if (isRegister(dst)) { |
| return CONST2REG; |
| } else if (isStackSlot(dst)) { |
| return CONST2STACK; |
| } |
| } else if (move instanceof ValueMoveOp) { |
| src = ((ValueMoveOp) move).getInput(); |
| if (isRegister(dst)) { |
| if (isRegister(src)) { |
| return REG2REG; |
| } else if (isStackSlot(src)) { |
| return STACK2REG; |
| } |
| } else if (isStackSlot(dst)) { |
| if (isRegister(src)) { |
| return REG2STACK; |
| } else if (isStackSlot(src)) { |
| return STACK2STACK; |
| } |
| } |
| } |
| throw GraalError.shouldNotReachHere(String.format("Unrecognized Move: %s dst=%s, src=%s", move, dst, src)); |
| } |
| } |