sparc: refactor sparc32 rint{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_rint{f}-generic.S).

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

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

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

7 files changed, 74 insertions, 30 deletions

diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
index 5b6e2a62e7..459c0e5c25 100644
--- a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
@@ -10,7 +10,8 @@ sysdep_routines += $(sysdep_calls)
 libm-sysdep_routines += s_fabs-vis3 s_fabsf-vis3 s_fabs-generic \
 			s_fabsf-generic s_llrintf-vis3 s_llrint-vis3 \
 			s_llrintf-generic s_llrint-generic \
-			s_rintf-vis3 s_rint-vis3 \
+			s_rintf-vis3 s_rint-vis3 s_rintf-generic \
+			s_rint-generic \
 			s_fmaf-vis3 s_fma-vis3 s_fma-generic s_fmaf-generic \
 			s_nearbyint-vis3 s_nearbyintf-vis3 \
 			s_fdimf-vis3 s_fdim-vis3 s_fdim-generic \
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint-generic.S b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint-generic.S
new file mode 100644
index 0000000000..b122ba2739
--- /dev/null
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint-generic.S
@@ -0,0 +1,5 @@
+#include <libm-alias-double.h>
+#define __rint __rint_generic
+#undef libm_alias_double
+#define libm_alias_double(a, b)
+#include <sysdeps/sparc/sparc32/sparcv9/fpu/s_rint.S>
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.S b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.S
deleted file mode 100644
index e6b8654776..0000000000
--- a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.S
+++ /dev/null
@@ -1,16 +0,0 @@
-#include <sparc-ifunc.h>
-#include <math_ldbl_opt.h>
-#include <libm-alias-double.h>
-
-SPARC_ASM_VIS3_IFUNC(rint)
-
-libm_alias_double (__rint, rint)
-
-# undef weak_alias
-# define weak_alias(a, b)
-# undef compat_symbol
-# define compat_symbol(a, b, c, d)
-
-#define __rint __rint_generic
-
-#include "../s_rint.S"
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.c b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.c
new file mode 100644
index 0000000000..92622d0c63
--- /dev/null
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.c
@@ -0,0 +1,32 @@
+/* rint 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 __rint __redirect_rint
+#include <math.h>
+#undef __rint
+#include <sparc-ifunc.h>
+#include <libm-alias-double.h>
+
+extern __typeof (__redirect_rint) __rint_vis3 attribute_hidden;
+extern __typeof (__redirect_rint) __rint_generic attribute_hidden;
+
+sparc_libm_ifunc_redirected (__redirect_rint, __rint,
+			     hwcap & HWCAP_SPARC_VIS3
+			     ? __rint_vis3
+			     : __rint_generic);
+libm_alias_double (__rint, rint)
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf-generic.S b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf-generic.S
new file mode 100644
index 0000000000..dce957aa9b
--- /dev/null
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf-generic.S
@@ -0,0 +1,5 @@
+#include <libm-alias-float.h>
+#define __rintf __rintf_generic
+#undef libm_alias_float
+#define libm_alias_float(a, b)
+#include <sysdeps/sparc/sparc32/sparcv9/fpu/s_rintf.S>
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.S b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.S
deleted file mode 100644
index 99892806c5..0000000000
--- a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.S
+++ /dev/null
@@ -1,13 +0,0 @@
-#include <sparc-ifunc.h>
-#include <libm-alias-float.h>
-
-SPARC_ASM_VIS3_IFUNC(rintf)
-
-libm_alias_float (__rint, rint)
-
-# undef weak_alias
-# define weak_alias(a, b)
-
-#define __rintf __rintf_generic
-
-#include "../s_rintf.S"
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.c b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.c
new file mode 100644
index 0000000000..0c6abce1d4
--- /dev/null
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.c
@@ -0,0 +1,30 @@
+/* rintf 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/>.  */
+
+#include <math.h>
+#include <sparc-ifunc.h>
+#include <libm-alias-float.h>
+
+extern __typeof (rintf) __rintf_vis3 attribute_hidden;
+extern __typeof (rintf) __rintf_generic attribute_hidden;
+
+sparc_libm_ifunc (__rintf,
+		  hwcap & HWCAP_SPARC_VIS3
+		  ? __rintf_vis3
+		  : __rintf_generic);
+libm_alias_float (__rint, rint)