/*
* This file is part of the Jikes RVM project (http://jikesrvm.org).
*
* This file is licensed to You under the Eclipse Public License (EPL);
* You may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.
*/
package org.jikesrvm.compilers.opt.driver;
/**
* Class that holds miscellaneous constants used in the opt compiler
*/
public interface OptConstants {
// the following constants are dummy bytecode indices,
// used to mark IR instructions that do not correspond
// to any original bytecode
int UNKNOWN_BCI = -1;
int PROLOGUE_BCI = -2;
int EPILOGUE_BCI = -3;
int RECTIFY_BCI = -4;
int SYNTH_CATCH_BCI = -5;
int SYNCHRONIZED_MONITORENTER_BCI = -6;
int SYNCHRONIZED_MONITOREXIT_BCI = -7;
int METHOD_COUNTER_BCI = -8;
int SSA_SYNTH_BCI = -9;
int INSTRUMENTATION_BCI = -10;
int RUNTIME_SERVICES_BCI = -11;
int EXTANT_ANALYSIS_BCI = -12;
int PROLOGUE_BLOCK_BCI = -13;
int EPILOGUE_BLOCK_BCI = -14;
int OSR_PROLOGUE = -15;
int SYNTH_LOOP_VERSIONING_BCI = -16;
// The following are used as trinary return values in OptCompiler code
byte NO = 0;
byte YES = 1;
byte MAYBE = 2;
}