* [PATCH] Fix fdim{,f,l} on i386..i586
@ 2004-09-29 13:08 Jakub Jelinek
0 siblings, 0 replies; only message in thread
From: Jakub Jelinek @ 2004-09-29 13:08 UTC (permalink / raw)
To: Ulrich Drepper; +Cc: Glibc hackers
Hi!
2004-09-29 Jakub Jelinek <jakub@redhat.com>
* sysdeps/i386/fpu/s_fdim.S (__fdim): Handle +inf/+inf.
* sysdeps/i386/fpu/s_fdimf.S (__fdimf): Likewise.
* sysdeps/i386/fpu/s_fdiml.S (__fdiml): Likewise.
--- libc/sysdeps/i386/fpu/s_fdim.S.jj 2001-07-06 06:55:53.000000000 +0200
+++ libc/sysdeps/i386/fpu/s_fdim.S 2004-09-29 10:05:14.544724188 +0200
@@ -1,5 +1,5 @@
/* Compute positive difference.
- Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1999, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -30,22 +30,23 @@ ENTRY(__fdim)
sahf
jp 1f
- fsubrp %st, %st(1)
- jc 2f
+ jc 3f
- fstp %st(0)
+ fstp %st(1)
fldz
jmp 2f
+3: fsubrp %st, %st(1)
+ ret
+
1: fxam
fnstsw
andb $0x45, %ah
cmpb $0x01, %ah
- je 3f
+ je 2f
fxch
-3: fstp %st(1)
-
-2: ret
+2: fstp %st(1)
+ ret
END(__fdim)
weak_alias (__fdim, fdim)
--- libc/sysdeps/i386/fpu/s_fdiml.S.jj 2001-07-06 06:55:53.000000000 +0200
+++ libc/sysdeps/i386/fpu/s_fdiml.S 2004-09-29 10:17:50.603487868 +0200
@@ -1,5 +1,5 @@
/* Compute positive difference.
- Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1999, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -30,22 +30,23 @@ ENTRY(__fdiml)
sahf
jp 1f
- fsubrp %st, %st(1)
- jc 2f
+ jc 3f
- fstp %st(0)
+ fstp %st(1)
fldz
jmp 2f
+3: fsubrp %st, %st(1)
+ ret
+
1: fxam
fnstsw
andb $0x45, %ah
cmpb $0x01, %ah
- je 3f
+ je 2f
fxch
-3: fstp %st(1)
-
-2: ret
+2: fstp %st(1)
+ ret
END(__fdiml)
weak_alias (__fdiml, fdiml)
--- libc/sysdeps/i386/fpu/s_fdimf.S.jj 2001-07-06 06:55:53.000000000 +0200
+++ libc/sysdeps/i386/fpu/s_fdimf.S 2004-09-29 10:18:01.789484099 +0200
@@ -1,5 +1,5 @@
/* Compute positive difference.
- Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1999, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -30,22 +30,23 @@ ENTRY(__fdimf)
sahf
jp 1f
- fsubrp %st, %st(1)
- jc 2f
+ jc 3f
- fstp %st(0)
+ fstp %st(1)
fldz
jmp 2f
+3: fsubrp %st, %st(1)
+ ret
+
1: fxam
fnstsw
andb $0x45, %ah
cmpb $0x01, %ah
- je 3f
+ je 2f
fxch
-3: fstp %st(1)
-
-2: ret
+2: fstp %st(1)
+ ret
END(__fdimf)
weak_alias (__fdimf, fdimf)
Jakub
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2004-09-29 13:08 [PATCH] Fix fdim{,f,l} on i386..i586 Jakub Jelinek
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