[COMMITTED PATCH] tile: switch to using <fenv.h> fallback functions

[Chris Metcalf <cmetcalf@tilera.com>]

Now that the fallback functions match the desired semantics for tile
functions, just switch to using them.
---
(Committed as obvious.)

2013-06-28  Chris Metcalf  <cmetcalf@tilera.com>

	* sysdeps/tile/fegetenv.c: Delete now-redundant file.
	* sysdeps/tile/fegetround.c: Likewise.
	* sysdeps/tile/feholdexcpt.c: Likewise.
	* sysdeps/tile/fesetenv.c: Likewise.
	* sysdeps/tile/fesetround.c: Likewise.
	* sysdeps/tile/feupdateenv.c: Likewise.

diff --git a/ports/sysdeps/tile/fegetenv.c b/ports/sysdeps/tile/fegetenv.c
deleted file mode 100644
index acb81ec..0000000
--- a/ports/sysdeps/tile/fegetenv.c
+++ /dev/null
@@ -1,29 +0,0 @@
-/* Copyright (C) 2011-2013 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
-   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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <fenv.h>
-#include <shlib-compat.h>
-
-int
-__fegetenv (fenv_t *envp)
-{
-  /* As a no-op, this always succeeds. */
-  return 0;
-}
-libm_hidden_ver (__fegetenv, fegetenv)
-versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2);
diff --git a/ports/sysdeps/tile/fegetround.c b/ports/sysdeps/tile/fegetround.c
deleted file mode 100644
index fb8416d..0000000
--- a/ports/sysdeps/tile/fegetround.c
+++ /dev/null
@@ -1,25 +0,0 @@
-/* Copyright (C) 2011-2013 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
-   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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <fenv.h>
-
-int
-fegetround (void)
-{
-  return FE_TONEAREST;
-}
diff --git a/ports/sysdeps/tile/feholdexcpt.c b/ports/sysdeps/tile/feholdexcpt.c
deleted file mode 100644
index 268b4a8..0000000
--- a/ports/sysdeps/tile/feholdexcpt.c
+++ /dev/null
@@ -1,27 +0,0 @@
-/* Copyright (C) 2011-2013 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
-   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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <fenv.h>
-
-/* Tile has no exception flags, so this routine can be a no-op.  */
-int
-feholdexcept (fenv_t *envp)
-{
-  return 0;
-}
-libm_hidden_def (feholdexcept)
diff --git a/ports/sysdeps/tile/fesetenv.c b/ports/sysdeps/tile/fesetenv.c
deleted file mode 100644
index f46f761..0000000
--- a/ports/sysdeps/tile/fesetenv.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (C) 2011-2013 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
-   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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <fenv.h>
-#include <shlib-compat.h>
-
-/* The only way to get an initialized fenv_t on Tile is with feholdexcept()
-   or via FE_DFL_ENV, either of which restores the environment to its
-   normal state, i.e. FE_DFL_ENV.  */
-int
-__fesetenv (const fenv_t *envp)
-{
-  return 0;
-}
-libm_hidden_ver (__fesetenv, fesetenv)
-versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2);
diff --git a/ports/sysdeps/tile/fesetround.c b/ports/sysdeps/tile/fesetround.c
deleted file mode 100644
index 73b4d30..0000000
--- a/ports/sysdeps/tile/fesetround.c
+++ /dev/null
@@ -1,26 +0,0 @@
-/* Copyright (C) 2011-2013 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
-   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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <fenv.h>
-
-int
-fesetround (int round)
-{
-  return (round == FE_TONEAREST) ? 0 : 1;
-}
-libm_hidden_def (fesetround)
diff --git a/ports/sysdeps/tile/feupdateenv.c b/ports/sysdeps/tile/feupdateenv.c
deleted file mode 100644
index 5745c30..0000000
--- a/ports/sysdeps/tile/feupdateenv.c
+++ /dev/null
@@ -1,27 +0,0 @@
-/* Copyright (C) 2011-2013 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
-   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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <fenv.h>
-
-/* Tile has no exception flags, so this routine can be a no-op.  */
-int
-feupdateenv (const fenv_t *envp)
-{
-  return 0;
-}
-libm_hidden_def (feupdateenv)
-- 
1.8.3.1