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[PATCH 03/18] PowerPC: multiarch llround/llroundf for PowerPC32

From: Adhemerval Zanella <azanella at linux dot vnet dot ibm dot com>
To: "GNU C. Library" <libc-alpha at sourceware dot org>
Cc: "Steven J. Munroe" <sjmunroe at us dot ibm dot com>
Date: Tue, 19 Nov 2013 14:20:47 -0200
Subject: [PATCH 03/18] PowerPC: multiarch llround/llroundf for PowerPC32
Authentication-results: sourceware.org; auth=none
References: <528B815A dot 4030004 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 llround
	and llroundf multiarch implementations.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-power5+.S:
	New file.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-power6.S:
	New file.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-ppc32.S:
	New file. 
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround.c: New
	file: multiarch llround for PowerPC32.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llroundf.c: New
	file: multiarch llroundf for PowerPC32.

---

diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
index b82e475..997d70e 100644
--- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
@@ -1,4 +1,5 @@
 ifeq ($(subdir),math)
 libm-sysdep_routines += s_llrintf-power6 s_llrintf-ppc32 s_llrint-power6 \
-			s_llrint-ppc32
+			s_llrint-ppc32 s_llround-power6 s_llround-power5+ \
+			s_llround-ppc32
 endif
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-power5+.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-power5+.S
new file mode 100644
index 0000000..45e0288
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-power5+.S
@@ -0,0 +1,31 @@
+/* lround function.  PowerPC32/POWER5+ 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 __llround __llround_power5plus
+
+#include <sysdeps/powerpc/powerpc32/power5+/fpu/s_llround.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-power6.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-power6.S
new file mode 100644
index 0000000..9d6167a
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-power6.S
@@ -0,0 +1,31 @@
+/* lround function.  PowerPC32/POWER6 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 __llround __llround_power6
+
+#include <sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-ppc32.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-ppc32.S
new file mode 100644
index 0000000..bd6d7d6
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround-ppc32.S
@@ -0,0 +1,31 @@
+/* llround 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 __llround __llround_ppc32
+
+#include <sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround.c
new file mode 100644
index 0000000..043bebe
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround.c
@@ -0,0 +1,43 @@
+/* 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/>.  */
+
+#include <math.h>
+#include <math_ldbl_opt.h>
+#include <shlib-compat.h>
+#include "init-arch.h"
+
+extern __typeof (__llround) __llround_ppc32 attribute_hidden;
+extern __typeof (__llround) __llround_power5plus attribute_hidden;
+extern __typeof (__llround) __llround_power6 attribute_hidden;
+
+libc_ifunc (__llround,
+	    (hwcap & PPC_FEATURE_ARCH_2_05)
+	    ? __llround_power6 :
+	      (hwcap & PPC_FEATURE_POWER5_PLUS)
+	      ? __llround_power5plus
+            : __llround_ppc32);
+
+weak_alias (__llround, llround)
+
+#ifdef NO_LONG_DOUBLE
+strong_alias (__llround, __llroundl)
+weak_alias (__llround, llroundl)
+#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __llround, llroundl, GLIBC_2_1);
+#endif
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llroundf.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llroundf.c
new file mode 100644
index 0000000..49fa0ff
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llroundf.c
@@ -0,0 +1,34 @@
+/* Multiple versions of llroundf.
+   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 (__llroundf) __llround_ppc32 attribute_hidden;
+extern __typeof (__llroundf) __llround_power5plus attribute_hidden;
+extern __typeof (__llroundf) __llround_power6 attribute_hidden;
+
+libc_ifunc (__llroundf,
+	    (hwcap & PPC_FEATURE_ARCH_2_05)
+	    ? __llround_power6 :
+	      (hwcap & PPC_FEATURE_POWER5_PLUS)
+	      ? __llround_power5plus
+            : __llround_ppc32);
+
+weak_alias (__llroundf, llroundf)
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