[PATCH 13/18] PowerPC: multiarch lround/lrounf for PowerPC32

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

2013-11-19  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>

	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile: Add lround
	and lroundf multiarch implementations.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-power5+.S:
	New file.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-power6.S:
	New file.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-ppc32.S:
	New file.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround.c: New file:
	multiarch lround for PowerPC32.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lroundf.c: New
	file: multiarch lroundf for PowerPC32.

--

diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
index 0ea5635..b35affe 100644
--- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
@@ -18,5 +18,6 @@ libm-sysdep_routines += s_llrintf-power6 s_llrintf-ppc32 s_llrint-power6 \
 			s_floorf-ppc32 s_round-power5+ s_round-ppc32 \
 			s_roundf-power5+ s_roundf-ppc32 s_trunc-power5+ \
 			s_trunc-ppc32 s_truncf-power5+ s_truncf-ppc32 \
-			s_copysign-power6 s_copysign-ppc32
+			s_copysign-power6 s_copysign-ppc32 s_lround-power6x \
+			s_lround-power5+ s_lround-ppc32
 endif
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-power5+.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-power5+.S
new file mode 100644
index 0000000..a5e1d1a
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-power5+.S
@@ -0,0 +1,33 @@
+/* lround function.  POWER5+, PowerPC32 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 hidden_def
+#define hidden_def(name)
+#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 __lround __lround_power5plus
+
+#include <sysdeps/powerpc/powerpc32/power5+/fpu/s_lround.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-power6x.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-power6x.S
new file mode 100644
index 0000000..302521c
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-power6x.S
@@ -0,0 +1,33 @@
+/* lround function.  POWER6x, PowerPC32 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 hidden_def
+#define hidden_def(name)
+#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 __lround __lround_power6x
+
+#include <sysdeps/powerpc/powerpc32/power6x/fpu/s_lround.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-ppc32.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-ppc32.S
new file mode 100644
index 0000000..8124cd7
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround-ppc32.S
@@ -0,0 +1,31 @@
+/* lround function.  PowerPC32 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(a,b)
+#undef strong_alias
+#define strong_alias(a,b)
+#undef compat_symbol
+#define compat_symbol(a,b,c,d)
+
+#define __lround __lround_ppc32
+
+#include <sysdeps/powerpc/powerpc32/fpu/s_lround.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround.c
new file mode 100644
index 0000000..f21a7e8
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround.c
@@ -0,0 +1,43 @@
+/* Multiple versions of lround.
+   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 <math.h>
+#include <math_ldbl_opt.h>
+#include <shlib-compat.h>
+#include "init-arch.h"
+
+extern __typeof (__lround) __lround_ppc32 attribute_hidden;
+extern __typeof (__lround) __lround_power5plus attribute_hidden;
+extern __typeof (__lround) __lround_power6x attribute_hidden;
+
+libc_ifunc (__lround,
+	    (hwcap & PPC_FEATURE_POWER6_EXT) ?
+	      __lround_power6x
+		: (hwcap & PPC_FEATURE_POWER5_PLUS) ?
+		  __lround_power5plus
+            : __lround_ppc32);
+
+weak_alias (__lround, lround)
+
+#ifdef NO_LONG_DOUBLE
+weak_alias (__lround, lroundl)
+strong_alias (__lround, __lroundl)
+#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __lround, lroundl, GLIBC_2_1);
+#endif
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lroundf.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lroundf.c
new file mode 100644
index 0000000..3080637
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lroundf.c
@@ -0,0 +1,34 @@
+/* Multiple versions of lroundf.
+   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 <math.h>
+#include "init-arch.h"
+
+/* It's safe to use double-precision implementation for single-precision.  */
+extern __typeof (__lroundf) __lround_ppc32 attribute_hidden;
+extern __typeof (__lroundf) __lround_power5plus attribute_hidden;
+extern __typeof (__lroundf) __lround_power6x attribute_hidden;
+
+libc_ifunc (__lroundf,
+	    (hwcap & PPC_FEATURE_POWER6_EXT) ?
+	      __lround_power6x
+		: (hwcap & PPC_FEATURE_POWER5_PLUS) ?
+		  __lround_power5plus
+            : __lround_ppc32);
+
+weak_alias (__lroundf, lroundf)