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SH: Do not re-write fpscr after reading it.

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This commit is contained in:
Thomas Schwinge 2012-06-09 18:36:52 +02:00
parent 793ea8518f
commit 366af02c96
6 changed files with 10 additions and 12 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2012-06-09 Thomas Schwinge <thomas@codesourcery.com>
* sysdeps/sh/sh4/fpu/fegetenv.c (fegetenv): Do not re-write fpscr after
reading it.
* sysdeps/sh/sh4/fpu/fegetexcept.c (fegetexcept): Likewise.
* sysdeps/sh/sh4/fpu/ftestexcept.c (fetestexcept): Likewise.
2012-06-09 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/unix/sysv/linux/sh/nptl/ld.abilist: New file.

5
sysdeps/sh/sh4/fpu/fegetenv.c
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@ -1,5 +1,5 @@
/* Store current floating-point environment.
Copyright (C) 1997, 1998, 1999, 2000, 2012 Free Software Foundation, Inc.
Copyright (C) 1997-2012 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
@ -24,9 +24,6 @@ fegetenv (fenv_t *envp)
{
fpu_control_t temp;
_FPU_GETCW (temp);
/* When read fpscr, this was initialized.
We need to rewrite value of temp. */
_FPU_SETCW (temp);
envp->__fpscr = temp;

3
sysdeps/sh/sh4/fpu/fegetexcept.c
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@ -27,9 +27,6 @@ fegetexcept (void)
/* Get current exceptions. */
_FPU_GETCW (temp);
/* When read fpscr, this was initialized.
We need to rewrite value of temp. */
_FPU_SETCW (temp);
return (temp >> 5) & FE_ALL_EXCEPT;
}

2
sysdeps/sh/sh4/fpu/fesetround.c
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@ -1,5 +1,5 @@
/* Set current rounding direction.
Copyright (C) 1998, 2000, 2005, 2012 Free Software Foundation, Inc.
Copyright (C) 1998-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 1998.

2
sysdeps/sh/sh4/fpu/fraiseexcpt.c
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@ -1,5 +1,5 @@
/* Raise given exceptions.
Copyright (C) 1997, 1998, 2000, 2002, 2012 Free Software Foundation, Inc.
Copyright (C) 1997-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.

3
sysdeps/sh/sh4/fpu/ftestexcept.c
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@ -26,9 +26,6 @@ fetestexcept (int excepts)
/* Get current exceptions. */
_FPU_GETCW (temp);
/* When read fpscr, this was initialized.
We need to rewrite value of temp. */
_FPU_SETCW (temp);
return temp & excepts & FE_ALL_EXCEPT;
}