* sysdeps/ia64/fpu/libm_cpu_defs.h: Update copyright. cvs/fedora-glibc-20050401T1444

2005-04-01  Ulrich Drepper  <drepper@redhat.com>

	* wcsmbs/btowc.c (__btowc): Optimize parameters in ASCII range.
	* wcsmbs/wctob.c (wctob): Likewise.
	* wcsmbs/wchar.h (btowc): Add optimized inline function.
	(wctob): Likewise.

5 files changed, 78 insertions, 10 deletions

diff --git a/ChangeLog b/ChangeLog
index 98d63c94bc..a3fbb7e11f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2005-03-31  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* sysdeps/ia64/fpu/libm_cpu_defs.h: Update copyright.
+
+2005-04-01  Ulrich Drepper  <drepper@redhat.com>
+
+	* wcsmbs/btowc.c (__btowc): Optimize parameters in ASCII range.
+	* wcsmbs/wctob.c (wctob): Likewise.
+	* wcsmbs/wchar.h (btowc): Add optimized inline function.
+	(wctob): Likewise.
+
 2005-03-31  Jakub Jelinek  <jakub@redhat.com>
 
 	* sysdeps/unix/sysv/linux/x86_64/getcontext.S: Use functionally
diff --git a/sysdeps/ia64/fpu/libm_cpu_defs.h b/sysdeps/ia64/fpu/libm_cpu_defs.h
index 7b17540cef..516128c404 100644
--- a/sysdeps/ia64/fpu/libm_cpu_defs.h
+++ b/sysdeps/ia64/fpu/libm_cpu_defs.h
@@ -1,13 +1,43 @@
 /* file: libm_cpu_defs.h */
  
  
-/*
-** Copyright (C) 1985-2004 Intel Corporation.
-**
-** The information and source code contained herein is the exclusive property
-** of Intel Corporation and may not be disclosed, examined, or reproduced in
-** whole or in part without explicit written authorization from the Company.
-*/
+// Copyright (c) 2000 - 2004, Intel Corporation
+// All rights reserved.
+//
+// Contributed 2000 by the Intel Numerics Group, Intel Corporation
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+//
+// * The name of Intel Corporation may not be used to endorse or promote
+// products derived from this software without specific prior written
+// permission.
+
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS
+// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING
+// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Intel Corporation is the author of this code, and requests that all
+// problem reports or change requests be submitted to it directly at
+// http://www.intel.com/software/products/opensource/libraries/num.htm.
+//
 
 #ifndef __LIBM_CPU_DEFS__H_INCLUDED__
 #define __LIBM_CPU_DEFS__H_INCLUDED__
diff --git a/wcsmbs/btowc.c b/wcsmbs/btowc.c
index 1ba0221403..6add7ed8bb 100644
--- a/wcsmbs/btowc.c
+++ b/wcsmbs/btowc.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996,1997,1998,1999,2000,2002 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2000,2002,2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
 
@@ -17,6 +17,7 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
+#include <ctype.h>
 #include <dlfcn.h>
 #include <gconv.h>
 #include <stdio.h>
@@ -37,6 +38,11 @@ __btowc (c)
   if (c < SCHAR_MIN || c > UCHAR_MAX || c == EOF)
     return WEOF;
 
+  /* We know that only ASCII compatible encodings are used for the
+     locale and that the wide character encoding is ISO 10646.  */
+  if (isascii (c))
+    return (wint_t) c;
+
   /* Get the conversion functions.  */
   fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE));
 
diff --git a/wcsmbs/wchar.h b/wcsmbs/wchar.h
index 1fe7e94d92..fe4ee80bff 100644
--- a/wcsmbs/wchar.h
+++ b/wcsmbs/wchar.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -320,6 +320,22 @@ __END_NAMESPACE_C99
 
 #ifdef __USE_EXTERN_INLINES
 /* Define inline function as optimization.  */
+
+/* We can use the BTOWC and WCTOB optimizations since we know that all
+   locales must use ASCII encoding for the values in the ASCII range
+   and because the wchar_t encoding is always ISO 10646.  */
+extern wint_t __btowc_alias (int __c) __asm ("btowc");
+extern __inline wint_t
+__NTH (btowc (int __c))
+{ return (__builtin_constant_p (__c) && __c >= '\0' && __c <= '\x7f'
+	  ? (wint_t) __c : __btowc_alias (__c)); }
+
+extern int __wctob_alias (wint_t __c) __asm ("wctob");
+extern __inline int
+__NTH (wctob (wint_t __wc))
+{ return (__builtin_constant_p (__wc) && __wc >= L'\0' && __wc <= L'\x7f'
+	  ? (int) __wc : __wctob_alias (__wc)); }
+
 extern __inline size_t
 __NTH (mbrlen (__const char *__restrict __s, size_t __n,
 	       mbstate_t *__restrict __ps))
diff --git a/wcsmbs/wctob.c b/wcsmbs/wctob.c
index 854a3f25db..0f241577a4 100644
--- a/wcsmbs/wctob.c
+++ b/wcsmbs/wctob.c
@@ -40,6 +40,11 @@ wctob (c)
   if (c == WEOF)
     return EOF;
 
+  /* We know that only ASCII compatible encodings are used for the
+     locale and that the wide character encoding is ISO 10646.  */
+  if (c >= L'\0' && c <= L'\x7f')
+    return (int) c;
+
   /* Tell where we want the result.  */
   data.__outbuf = buf;
   data.__outbufend = buf + MB_LEN_MAX;
@@ -69,5 +74,5 @@ wctob (c)
       || data.__outbuf != (unsigned char *) (buf + 1))
     return EOF;
 
-  return (unsigned char) buf[0];
+  return buf[0];
 }