[PATCH 04/15] PowerPC: multiarch llround/lround for PowerPC64

[Adhemerval Zanella <azanella at linux dot vnet dot ibm dot com>]

2013-12-09  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>

	* sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile: Add llround
	multiarch implementation.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power5+.S: New
	file.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power6x.S: New
	file.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-ppc64.S: New
	file.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround.c: New file:
	multiarch llround for PPC64.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_lround.c: New file:
	multiarch lround for PPC64.

--

diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
index 3d3ecb7..d43f757 100644
--- a/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
@@ -3,5 +3,6 @@ sysdep_routines += s_isnan-power7 s_isnan-power6x s_isnan-power6 \
 		   s_isnan-power5 s_isnan-ppc64
 
 libm-sysdep_routines += s_isnan-power7 s_isnan-power6x s_isnan-power6 \
-			s_isnan-power5 s_isnan-ppc64
+			s_isnan-power5 s_isnan-ppc64 s_llround-power6x \
+			s_llround-power5+ s_llround-ppc64
 endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power5+.S b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power5+.S
new file mode 100644
index 0000000..01d86e7
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power5+.S
@@ -0,0 +1,32 @@
+/* llround().  PowerPC64 default version.
+   Copyright (C) 2013 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 <sysdep.h>
+#include <math_ldbl_opt.h>
+
+#undef weak_alias
+#define weak_alias(name, alias)
+#undef strong_alias
+#define strong_alias(name, alias)
+#undef compat_symbol
+#define compat_symbol(a,b,c,d)
+
+#define __llround __llround_power5plus
+#define __lround __lround_power5plus
+
+#include <sysdeps/powerpc/powerpc64/power5+/fpu/s_llround.S>
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power6x.S b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power6x.S
new file mode 100644
index 0000000..22fa2cd
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power6x.S
@@ -0,0 +1,32 @@
+/* llround().  PowerPC64 default version.
+   Copyright (C) 2013 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 <sysdep.h>
+#include <math_ldbl_opt.h>
+
+#undef weak_alias
+#define weak_alias(name, alias)
+#undef strong_alias
+#define strong_alias(name, alias)
+#undef compat_symbol
+#define compat_symbol(lib, name, alias, ver)
+
+#define __llround __llround_power6x
+#define __lround __lround_power6x
+
+#include <sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S>
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-ppc64.S b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-ppc64.S
new file mode 100644
index 0000000..38f1eed
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-ppc64.S
@@ -0,0 +1,28 @@
+/* llround().  PowerPC64 default version.
+   Copyright (C) 2013 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 <sysdep.h>
+#include <math_ldbl_opt.h>
+
+#undef compat_symbol
+#define compat_symbol(a,b,c,d)
+
+#define __llround __llround_ppc64
+#define __lround __lround_ppc64
+
+#include <sysdeps/powerpc/powerpc64/fpu/s_llround.S>
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround.c
new file mode 100644
index 0000000..3559ce4
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround.c
@@ -0,0 +1,60 @@
+/* Multiple versions of llround.
+   Copyright (C) 2013 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 lround __hidden_lround
+#define __lround __hidden___lround
+
+#include <math.h>
+#include <math_ldbl_opt.h>
+#include <shlib-compat.h>
+#include "init-arch.h"
+
+extern __typeof (__llround) __llround_ppc64 attribute_hidden;
+extern __typeof (__llround) __llround_power5plus attribute_hidden;
+extern __typeof (__llround) __llround_power6x attribute_hidden;
+
+libc_ifunc (__llround,
+	    (hwcap & PPC_FEATURE_POWER6_EXT)
+	    ? __llround_power6x :
+	      (hwcap & PPC_FEATURE_POWER5_PLUS)
+	      ? __llround_power5plus
+            : __llround_ppc64);
+
+weak_alias (__llround, llround)
+
+#ifdef NO_LONG_DOUBLE
+weak_alias (__llround, llroundl)
+strong_alias (__llround, __llroundl)
+#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __llround, llroundl, GLIBC_2_1);
+compat_symbol (libm, llround, lroundl, GLIBC_2_1);
+#endif
+
+/* long has the same width as long long on PPC64.  */
+#undef lround
+#undef __lround
+strong_alias (__llround, __lround)
+weak_alias (__llround, lround)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__llround, __llroundl)
+weak_alias (__llround, llroundl)
+#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __lround, lroundl, GLIBC_2_1);
+#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_lround.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_lround.c
new file mode 100644
index 0000000..0dab544
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_lround.c
@@ -0,0 +1 @@
+/* __lround is in s_llround.c  */