2.5-18.1

1 files changed, 82 insertions, 34 deletions

diff --git a/sysdeps/ia64/fpu/s_fabs.S b/sysdeps/ia64/fpu/s_fabs.S
index ea3908dbc3..3434389a3c 100644
--- a/sysdeps/ia64/fpu/s_fabs.S
+++ b/sysdeps/ia64/fpu/s_fabs.S
@@ -1,34 +1,82 @@
-/* Copyright (C) 2000 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
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library 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
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <sysdep.h>
-#undef ret
-
-ENTRY (__fabs)
-{
-	fabs fret0 = farg0
-	br.ret.sptk.many rp
-}	
-END (__fabs)
-
-strong_alias (__fabs, __fabsf)
-strong_alias (__fabs, __fabsl)
-
-weak_alias (__fabs, fabs)
-weak_alias (__fabsf, fabsf)
-weak_alias (__fabsl, fabsl)
+.file "fabs.s"
+
+
+// Copyright (c) 2000 - 2003, 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.
+//
+// History
+//==============================================================
+// 02/02/00 Initial version 
+// 02/07/02 Added __libm_fabs entry point to test in case compiler inlines
+// 05/20/02 Cleaned up namespace and sf0 syntax
+// 02/10/03 Reordered header: .section, .global, .proc, .align
+//
+// API
+//==============================================================
+// double fabs  (double x)
+//
+// Overview of operation
+//==============================================================
+// returns absolute value of x 
+
+// floating-point registers used: 1
+// f8, input
+
+.section .text
+.global __libm_fabs#
+
+.proc __libm_fabs#
+__libm_fabs:
+.endp __libm_fabs#
+
+GLOBAL_IEEE754_ENTRY(fabs)
+
+// set invalid or denormal flags and take fault if
+// necessary
+
+{ .mfi
+      nop.m 999
+      fcmp.eq.unc.s0 p6,p7 = f8,f1             
+      nop.i 999 ;;
+}
+
+{ .mfb
+      nop.m 999
+      fmerge.s       f8 = f0,f8                   
+      br.ret.sptk    b0 ;;                        
+}
+
+GLOBAL_IEEE754_END(fabs)