Remove unused sparc64/soft-fp libm function implementations

[Joseph Myers <joseph at codesourcery dot com>]

sysdeps/sparc/sparc64/soft-fp has files s_frexpl.c, s_scalblnl.c and
s_scalbnl.c that are never used because the ldbl-128 versions always
come first in the sysdeps directory ordering.  This patch removes the
unused files.

Tested with build-many-glibcs.py that installed stripped shared
libraries are unchanged by this patch.  Will commit unless someone comes 
up with a reason why these files ought actually to be used or kept.

2017-11-17  Joseph Myers  <joseph@codesourcery.com>

	* sysdeps/sparc/sparc64/soft-fp/s_frexpl.c: Remove file.
	* sysdeps/sparc/sparc64/soft-fp/s_scalblnl.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/s_scalbnl.c: Likewise.

diff --git a/sysdeps/sparc/sparc64/soft-fp/s_frexpl.c b/sysdeps/sparc/sparc64/soft-fp/s_frexpl.c
deleted file mode 100644
index 6f0baeb..0000000
--- a/sysdeps/sparc/sparc64/soft-fp/s_frexpl.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/* Software floating-point emulation.
-   frexpl(x, exp)
-   Copyright (C) 1999-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek (jj@ultra.linux.cz).
-
-   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/>.  */
-
-/*
- * for non-zero x
- *      x = frexpl(arg,&exp);
- * return a long double fp quantity x such that 0.5 <= |x| <1.0
- * and the corresponding binary exponent "exp". That is
- *      arg = x*2^exp.
- * If arg is inf, 0.0, or NaN, then frexpl(arg,&exp) returns arg
- * with *exp=0.
- */
-
-#include "soft-fp.h"
-#include "quad.h"
-
-long double __frexpl(long double arg, int *exp)
-{
-  FP_DECL_EX;
-  FP_DECL_Q(A);
-  long double r;
-
-  *exp = 0;
-  FP_UNPACK_Q(A, arg);
-  if (A_c != FP_CLS_NORMAL)
-    return arg;
-  *exp = A_e + 1;
-  A_e = -1;
-  FP_PACK_Q(r, A);
-
-  return r;
-}
-
-weak_alias (__frexpl, frexpl)
diff --git a/sysdeps/sparc/sparc64/soft-fp/s_scalblnl.c b/sysdeps/sparc/sparc64/soft-fp/s_scalblnl.c
deleted file mode 100644
index 250a8f4..0000000
--- a/sysdeps/sparc/sparc64/soft-fp/s_scalblnl.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/* Software floating-point emulation.
-   scalblnl(x, exp)
-   Copyright (C) 1999-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek (jj@ultra.linux.cz).
-
-   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/>.  */
-
-/*
- * scalblnl (long double x, long int n)
- * scalblnl(x,n) returns x* 2**n  computed by  exponent
- * manipulation rather than by actually performing an
- * exponentiation or a multiplication.
- */
-
-#include "soft-fp.h"
-#include "quad.h"
-
-long double __scalblnl(long double arg, int exp)
-{
-  FP_DECL_EX;
-  FP_DECL_Q(A);
-  long double r;
-
-  FP_UNPACK_Q(A, arg);
-  switch (A_c)
-    {
-    case FP_CLS_ZERO:
-      return arg;
-    case FP_CLS_NAN:
-    case FP_CLS_INF:
-      FP_HANDLE_EXCEPTIONS;
-      return arg;
-    }
-  A_e += exp;
-  FP_PACK_Q(r, A);
-  FP_HANDLE_EXCEPTIONS;
-
-  return r;
-}
diff --git a/sysdeps/sparc/sparc64/soft-fp/s_scalbnl.c b/sysdeps/sparc/sparc64/soft-fp/s_scalbnl.c
deleted file mode 100644
index c686175..0000000
--- a/sysdeps/sparc/sparc64/soft-fp/s_scalbnl.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/* Software floating-point emulation.
-   scalbnl(x, exp)
-   Copyright (C) 1999-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek (jj@ultra.linux.cz).
-
-   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/>.  */
-
-/*
- * scalbnl (long double x, int n)
- * scalbnl(x,n) returns x* 2**n  computed by  exponent
- * manipulation rather than by actually performing an
- * exponentiation or a multiplication.
- */
-
-#include "soft-fp.h"
-#include "quad.h"
-
-long double __scalbnl(long double arg, int exp)
-{
-  FP_DECL_EX;
-  FP_DECL_Q(A);
-  long double r;
-
-  FP_UNPACK_Q(A, arg);
-  switch (A_c)
-    {
-    case FP_CLS_ZERO:
-      return arg;
-    case FP_CLS_NAN:
-    case FP_CLS_INF:
-      FP_HANDLE_EXCEPTIONS;
-      return arg;
-    }
-  A_e += exp;
-  FP_PACK_Q(r, A);
-  FP_HANDLE_EXCEPTIONS;
-
-  return r;
-}

-- 
Joseph S. Myers
joseph@codesourcery.com