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 2004-2005 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. *//* Routines for various UTF conversions */#ifndef _UTF_H#define _UTF_H#include <stdio.h>#include "jni.h"#include "utf_md.h"/* Error and assert macros */#define UTF_ERROR(m) utfError(__FILE__, __LINE__, m)#define UTF_ASSERT(x) ( (x)==0 ? UTF_ERROR("ASSERT ERROR " #x) : (void)0 )void utfError(char *file, int line, char *message);struct UtfInst* JNICALL utfInitialize (char *options);void JNICALL utfTerminate (struct UtfInst *ui, char *options);int JNICALL utf8ToPlatform (struct UtfInst *ui, jbyte *utf8, int len, char *output, int outputMaxLen);int JNICALL utf8FromPlatform (struct UtfInst *ui, char *str, int len, jbyte *output, int outputMaxLen);int JNICALL utf8ToUtf16 (struct UtfInst *ui, jbyte *utf8, int len, jchar *output, int outputMaxLen);int JNICALL utf16ToUtf8m (struct UtfInst *ui, jchar *utf16, int len, jbyte *output, int outputMaxLen);int JNICALL utf16ToUtf8s (struct UtfInst *ui, jchar *utf16, int len, jbyte *output, int outputMaxLen);int JNICALL utf8sToUtf8mLength (struct UtfInst *ui, jbyte *string, int length);void JNICALL utf8sToUtf8m (struct UtfInst *ui, jbyte *string, int length, jbyte *new_string, int new_length);int JNICALL utf8mToUtf8sLength (struct UtfInst *ui, jbyte *string, int length);void JNICALL utf8mToUtf8s (struct UtfInst *ui, jbyte *string, int length, jbyte *new_string, int new_length);#endif