6910484: incorrect integer optimization (loosing and op-r in a given example)
Summary: Remove AND operation only if mask is equal to shift.
Reviewed-by: never
/* * Copyright 1998-2008 Sun Microsystems, Inc. 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. Sun designates this * particular file as subject to the "Classpath" exception as provided * by Sun in the LICENSE file that accompanied this code. * * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. */#ifndef JDWP_OUTSTREAM_H#define JDWP_OUTSTREAM_H#include "transport.h"#include "FrameID.h"struct bag;#define INITIAL_SEGMENT_SIZE 300#define MAX_SEGMENT_SIZE 10000typedef struct PacketData { int length; jbyte *data; struct PacketData *next;} PacketData;typedef struct PacketOutputStream { jbyte *current; jint left; struct PacketData *segment; struct PacketData firstSegment; jvmtiError error; jboolean sent; jdwpPacket packet; jbyte initialSegment[INITIAL_SEGMENT_SIZE]; struct bag *ids;} PacketOutputStream;void outStream_initCommand(PacketOutputStream *stream, jint id, jbyte flags, jbyte commandSet, jbyte command);void outStream_initReply(PacketOutputStream *stream, jint id);jint outStream_id(PacketOutputStream *stream);jbyte outStream_command(PacketOutputStream *stream);jdwpError outStream_writeBoolean(PacketOutputStream *stream, jboolean val);jdwpError outStream_writeByte(PacketOutputStream *stream, jbyte val);jdwpError outStream_writeChar(PacketOutputStream *stream, jchar val);jdwpError outStream_writeShort(PacketOutputStream *stream, jshort val);jdwpError outStream_writeInt(PacketOutputStream *stream, jint val);jdwpError outStream_writeLong(PacketOutputStream *stream, jlong val);jdwpError outStream_writeFloat(PacketOutputStream *stream, jfloat val);jdwpError outStream_writeDouble(PacketOutputStream *stream, jdouble val);jdwpError outStream_writeObjectRef(JNIEnv *env, PacketOutputStream *stream, jobject val);jdwpError outStream_writeObjectTag(JNIEnv *env, PacketOutputStream *stream, jobject val);jdwpError outStream_writeFrameID(PacketOutputStream *stream, FrameID val);jdwpError outStream_writeMethodID(PacketOutputStream *stream, jmethodID val);jdwpError outStream_writeFieldID(PacketOutputStream *stream, jfieldID val);jdwpError outStream_writeLocation(PacketOutputStream *stream, jlocation val);jdwpError outStream_writeByteArray(PacketOutputStream*stream, jint length, jbyte *bytes);jdwpError outStream_writeString(PacketOutputStream *stream, char *string);jdwpError outStream_writeValue(JNIEnv *env, struct PacketOutputStream *out, jbyte typeKey, jvalue value);jdwpError outStream_skipBytes(PacketOutputStream *stream, jint count);jdwpError outStream_error(PacketOutputStream *stream);void outStream_setError(PacketOutputStream *stream, jdwpError error);void outStream_sendReply(PacketOutputStream *stream);void outStream_sendCommand(PacketOutputStream *stream);void outStream_destroy(PacketOutputStream *stream);#endif