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>

8 files changed, 90 insertions, 32 deletions

diff --git a/ChangeLog b/ChangeLog
index 5cbbe8f4bf..d4392c07b1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,21 @@
 2017-12-01  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
 	* 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.
+
+	* 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.
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
index 459c0e5c25..1a26ee19c3 100644
--- a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
@@ -11,9 +11,9 @@ 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-generic \
-			s_rint-generic \
-			s_fmaf-vis3 s_fma-vis3 s_fma-generic s_fmaf-generic \
-			s_nearbyint-vis3 s_nearbyintf-vis3 \
+			s_rint-generic s_fmaf-vis3 s_fma-vis3 s_fma-generic \
+			s_fmaf-generic s_nearbyint-vis3 s_nearbyintf-vis3 \
+			s_nearbyint-generic s_nearbyintf-generic \
 			s_fdimf-vis3 s_fdim-vis3 s_fdim-generic \
 			s_fdimf-generic \
 			$(sysdep_calls:s_%=m_%)
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint-generic.S b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint-generic.S
new file mode 100644
index 0000000000..b869bbb6b9
--- /dev/null
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint-generic.S
@@ -0,0 +1,5 @@
+#include <libm-alias-double.h>
+#define __nearbyint __nearbyint_generic
+#undef libm_alias_double
+#define libm_alias_double(a, b)
+#include <sysdeps/sparc/sparc32/sparcv9/fpu/s_nearbyint.S>
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint.S b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint.S
deleted file mode 100644
index c39d0aee65..0000000000
--- a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint.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(nearbyint)
-
-libm_alias_double (__nearbyint, nearbyint)
-
-# undef weak_alias
-# define weak_alias(a, b)
-# undef compat_symbol
-# define compat_symbol(a, b, c, d)
-
-#define __nearbyint __nearbyint_generic
-
-#include "../s_nearbyint.S"
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)
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf-generic.S b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf-generic.S
new file mode 100644
index 0000000000..302fb94c80
--- /dev/null
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf-generic.S
@@ -0,0 +1,5 @@
+#include <libm-alias-float.h>
+#define __nearbyintf __nearbyintf_generic
+#undef libm_alias_float
+#define libm_alias_float(a, b)
+#include <sysdeps/sparc/sparc32/sparcv9/fpu/s_nearbyintf.S>
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf.S b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf.S
deleted file mode 100644
index 113db1dec4..0000000000
--- a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf.S
+++ /dev/null
@@ -1,13 +0,0 @@
-#include <sparc-ifunc.h>
-#include <libm-alias-float.h>
-
-SPARC_ASM_VIS3_IFUNC(nearbyintf)
-
-libm_alias_float (__nearbyint, nearbyint)
-
-# undef weak_alias
-# define weak_alias(a, b)
-
-#define __nearbyintf __nearbyintf_generic
-
-#include "../s_nearbyintf.S"
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf.c b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf.c
new file mode 100644
index 0000000000..ed2c2675d4
--- /dev/null
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf.c
@@ -0,0 +1,30 @@
+/* nearbyintf 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 (nearbyintf) __nearbyintf_vis3 attribute_hidden;
+extern __typeof (nearbyintf) __nearbyintf_generic attribute_hidden;
+
+sparc_libm_ifunc (__nearbyintf,
+		  hwcap & HWCAP_SPARC_VIS3
+		  ? __nearbyintf_vis3
+		  : __nearbyintf_generic);
+libm_alias_float (__nearbyint, nearbyint)