From 763f7e8ba7c381aee73e0536bb1f7732bb644ff1 Mon Sep 17 00:00:00 2001
From: Andreas Jaeger <aj@suse.de>
Date: Tue, 20 Jun 2000 13:05:21 +0000
Subject: [PATCH] * sysdeps/mips/fpu/fesetenv.c (__fesetenv): Flush fpu
 pipeline

first.
	* sysdeps/mips/fpu/feholdexcpt.c: New file.

	* sysdeps/mips/fpu/fraiseexcpt.c: New file.
---
 sysdeps/mips/fpu/feholdexcpt.c | 38 ++++++++++++++++++++++++++++
 sysdeps/mips/fpu/fesetenv.c    |  6 +++++
 sysdeps/mips/fpu/fraiseexcpt.c | 46 ++++++++++++++++++++++++++++++++++
 3 files changed, 90 insertions(+)
 create mode 100644 sysdeps/mips/fpu/feholdexcpt.c
 create mode 100644 sysdeps/mips/fpu/fraiseexcpt.c

diff --git a/sysdeps/mips/fpu/feholdexcpt.c b/sysdeps/mips/fpu/feholdexcpt.c
new file mode 100644
index 0000000000..ab92a71e0d
--- /dev/null
+++ b/sysdeps/mips/fpu/feholdexcpt.c
@@ -0,0 +1,38 @@
+/* Store current floating-point environment and clear exceptions.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Jaeger <aj@suse.de>, 2000.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+feholdexcept (fenv_t *envp)
+{
+  fpu_control_t cw;
+
+  /* Save the current state.  */
+  _FPU_GETCW (cw);
+  envp->__fp_control_register = cw;
+
+  /* Clear all exception enable bits and flags.  */
+  cw &= ~(_FPU_MASK_V|_FPU_MASK_Z|_FPU_MASK_O|_FPU_MASK_U|_FPU_MASK_I|FE_ALL_EXCEPT);
+  _FPU_SETCW (cw);
+
+  return 0;
+}
diff --git a/sysdeps/mips/fpu/fesetenv.c b/sysdeps/mips/fpu/fesetenv.c
index 7ae688a6b1..ab90e4d022 100644
--- a/sysdeps/mips/fpu/fesetenv.c
+++ b/sysdeps/mips/fpu/fesetenv.c
@@ -25,6 +25,11 @@
 int
 __fesetenv (const fenv_t *envp)
 {
+  fpu_control_t cw;
+
+  /* Read first current state to flush fpu pipeline.  */
+  _FPU_GETCW (cw);
+
   if (envp == FE_DFL_ENV)
     _FPU_SETCW (_FPU_DEFAULT);
   else
@@ -33,6 +38,7 @@ __fesetenv (const fenv_t *envp)
   /* Success.  */
   return 0;
 }
+
 #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
 strong_alias (__fesetenv, __old_fesetenv)
 compat_symbol (libm, __old_fesetenv, fesetenv, GLIBC_2_1);
diff --git a/sysdeps/mips/fpu/fraiseexcpt.c b/sysdeps/mips/fpu/fraiseexcpt.c
new file mode 100644
index 0000000000..25c09e3912
--- /dev/null
+++ b/sysdeps/mips/fpu/fraiseexcpt.c
@@ -0,0 +1,46 @@
+/* Raise given exceptions.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Jaeger <aj@suse.de>, 2000.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <shlib-compat.h>
+
+int
+__feraiseexcept (int excepts)
+{
+  fpu_control_t cw;
+
+  /* Get current state.  */
+  _FPU_GETCW (cw);
+
+  /* Set exceptions bits.  */
+  cw |= (excepts & FE_ALL_EXCEPT);
+
+  /* Set new state.  */
+  _FPU_SETCW (cw);
+
+  return 0;
+}
+
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__feraiseexcept, __old_feraiseexcept)
+compat_symbol (libm, __old_feraiseexcept, feraiseexcept, GLIBC_2_1);
+#endif
+versioned_symbol (libm, __feraiseexcept, feraiseexcept, GLIBC_2_2);