sparc: refactor sparc32 nearbyint{f} selector to C

This patch refactors the sparc32 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
s_nearbyint{f}-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
	(libm-sysdep_routines): Add s_nearbyintf-generic and
	s_nearbyint-generic.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint-generic.S:
	New file.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint.c: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf-generic.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf.c:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint.S: Remove
	file.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf.S:
	Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint.c b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint.c
new file mode 100644
index 0000000000..5df5fcd2d3
--- /dev/null
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint.c
@@ -0,0 +1,32 @@
+/* nearbyint ifunc resolver, Linux/sparc32 version.
+   Copyright (C) 2017 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
+   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/>.  */
+
+#define __nearbyint __redirect_nearbyint
+#include <math.h>
+#undef __nearbyint
+#include <sparc-ifunc.h>
+#include <libm-alias-double.h>
+
+extern __typeof (__redirect_nearbyint) __nearbyint_vis3 attribute_hidden;
+extern __typeof (__redirect_nearbyint) __nearbyint_generic attribute_hidden;
+
+sparc_libm_ifunc_redirected (__redirect_nearbyint, __nearbyint,
+			     hwcap & HWCAP_SPARC_VIS3
+			     ? __nearbyint_vis3
+			     : __nearbyint_generic);
+libm_alias_double (__nearbyint, nearbyint)