Remove sysdeps/sparc/sparc64/soft-fp directory.

As per <https://sourceware.org/ml/libc-alpha/2014-10/msg00369.html>,
there should not be separate sysdeps/<arch>/soft-fp directories when
those are used by all configurations that use sysdeps/<arch>, and,
more generally, should not be sysdeps/foo/Implies files pointing to a
subdirectory foo/bar.  This patch eliminates the
sysdeps/sparc/sparc64/soft-fp directory accordingly, merging its
contents into sysdeps/sparc/sparc64.  This completes removing the
unnecessary <arch>/soft-fp sysdeps directories.

sysdeps/sparc/sparc64/soft-fp/e_ilogbl.c is removed rather than moved.
It was not in fact used previously - the ldbl-128 version of
e_ilogbl.c was used instead - and moving it into sysdeps/sparc/sparc64
results in it being used, but causing a build failure because of
FP_DECL_EX declaring an unused variable (as I noted in
<https://sourceware.org/ml/libc-alpha/2013-10/msg00457.html> that file
doesn't appear to use FP_DECL_EX).  Given that the file was previously
unused and so presumably not tested recently, removing it is the safe
way to avoid this patch changing what actually gets built into glibc
(if this file should turn out more efficient than the ldbl-128
e_ilogbl.c, it can always be added back in future with the build
failure fixed).

Tested with build-many-glibcs.py that installed stripped shared
libraries for sparc configurations are unchanged by this patch.

	* sysdeps/sparc/sparc64/Implies: Remove sparc/sparc64/soft-fp.
	* sysdeps/sparc/sparc64/Makefile [$(subdir) = soft-fp]
	(sparc64-quad-routines): New variable.  Moved from ....
	[$(subdir) = soft-fp] (sysdep_routines): Add
	$(sparc64-quad-routines).  Moved from ....
	[$(subdir) = math] (CPPFLAGS): Add -I../soft-fp/.  Moved from ....
	* sysdeps/sparc/sparc64/soft-fp/Makefile: ... here.  Remove file.
	* sysdeps/sparc/sparc64/Versions (libc): Add GLIBC_2.2 symbols
	moved from ....
	* sysdeps/sparc/sparc64/soft-fp/Versions: ... here.  Remove file.
	* sysdeps/sparc/sparc64/soft-fp/e_ilogbl.c: Remove file.
	* sysdeps/sparc/sparc64/soft-fp/qp_add.c: Move to ....
	* sysdeps/sparc/sparc64/qp_add.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_cmp.c: Move to ....
	* sysdeps/sparc/sparc64/qp_cmp.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_cmpe.c: Move to ....
	* sysdeps/sparc/sparc64/qp_cmpe.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_div.c: Move to ....
	* sysdeps/sparc/sparc64/qp_div.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_dtoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_dtoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_feq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_feq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_fge.c: Move to ....
	* sysdeps/sparc/sparc64/qp_fge.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_fgt.c: Move to ....
	* sysdeps/sparc/sparc64/qp_fgt.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_fle.c: Move to ....
	* sysdeps/sparc/sparc64/qp_fle.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_flt.c: Move to ....
	* sysdeps/sparc/sparc64/qp_flt.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_fne.c: Move to ....
	* sysdeps/sparc/sparc64/qp_fne.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_itoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_itoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_mul.c: Move to ....
	* sysdeps/sparc/sparc64/qp_mul.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_neg.S: Move to ....
	* sysdeps/sparc/sparc64/qp_neg.S: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtod.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtod.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtoi.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtoi.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtos.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtos.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtoui.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtoui.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtoux.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtoux.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtox.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtox.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_sqrt.c: Move to ....
	* sysdeps/sparc/sparc64/qp_sqrt.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_stoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_stoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_sub.c: Move to ....
	* sysdeps/sparc/sparc64/qp_sub.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_uitoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_uitoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_util.c: Move to ....
	* sysdeps/sparc/sparc64/qp_util.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_uxtoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_uxtoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_xtoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_xtoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/sfp-machine.h: Move to ....
	* sysdeps/sparc/sparc64/sfp-machine.h: ... here.

1 files changed, 60 insertions, 0 deletions

diff --git a/sysdeps/sparc/sparc64/qp_util.c b/sysdeps/sparc/sparc64/qp_util.c
new file mode 100644
index 0000000000..fc9edf2153
--- /dev/null
+++ b/sysdeps/sparc/sparc64/qp_util.c
@@ -0,0 +1,60 @@
+/* Software floating-point emulation.
+   Helper routine for _Qp_* routines.
+   Simulate exceptions using double arithmetics.
+   Copyright (C) 1999-2018 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/>.  */
+
+#include <float.h>
+#include <math.h>
+#include <assert.h>
+#include "soft-fp.h"
+
+void __Qp_handle_exceptions(int exceptions)
+{
+  if (exceptions & FP_EX_INVALID)
+    {
+      float f = 0.0;
+      __asm__ __volatile__ ("fdivs %0, %0, %0" : "+f" (f));
+    }
+  if (exceptions & FP_EX_DIVZERO)
+    {
+      float f = 1.0, g = 0.0;
+      __asm__ __volatile__ ("fdivs %0, %1, %0"
+			    : "+f" (f)
+			    : "f" (g));
+    }
+  if (exceptions & FP_EX_OVERFLOW)
+    {
+      float f = FLT_MAX;
+      __asm__ __volatile__("fmuls %0, %0, %0" : "+f" (f));
+      exceptions &= ~FP_EX_INEXACT;
+    }
+  if (exceptions & FP_EX_UNDERFLOW)
+    {
+      float f = FLT_MIN;
+      __asm__ __volatile__("fmuls %0, %0, %0" : "+f" (f));
+      exceptions &= ~FP_EX_INEXACT;
+    }
+  if (exceptions & FP_EX_INEXACT)
+    {
+      double d = 1.0, e = M_PI;
+      __asm__ __volatile__ ("fdivd %0, %1, %0"
+			    : "+f" (d)
+			    : "f" (e));
+    }
+}