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[PATCH 04/18] PowerPC: multiarch sqrt/sqrtf 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 14:20:50 -0200
Subject: [PATCH 04/18] PowerPC: multiarch sqrt/sqrtf 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 sqrt
	and sqrtf multiarch implementations.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt-power5.S: New
	file.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt-ppc32.S: New
	file.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt.c: New file:
	multiarch sqrt for PowerPC32.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf-power5.S: New
	file.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf-ppc32.S: New
	file.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf.c: New file:
	multiarch sqrtf for PowerPC32.

---

diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
index 997d70e..842a34a 100644
--- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
@@ -1,5 +1,6 @@
 ifeq ($(subdir),math)
 libm-sysdep_routines += s_llrintf-power6 s_llrintf-ppc32 s_llrint-power6 \
 			s_llrint-ppc32 s_llround-power6 s_llround-power5+ \
-			s_llround-ppc32
+			s_llround-ppc32 w_sqrt-power5 w_sqrt-ppc32 \
+			w_sqrtf-power5 w_sqrtf-ppc32
 endif
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt-power5.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt-power5.S
new file mode 100644
index 0000000..1c0e8c8
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt-power5.S
@@ -0,0 +1,31 @@
+/* sqrt 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 __sqrt __sqrt_power5
+
+#include <sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt-ppc32.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt-ppc32.S
new file mode 100644
index 0000000..81be929
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt-ppc32.S
@@ -0,0 +1,31 @@
+/* sqrt 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 __sqrt __sqrt_ppc32
+
+#include <sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt.c
new file mode 100644
index 0000000..36a2007
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt.c
@@ -0,0 +1,40 @@
+/* Multiple versions of sqrt.
+   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 (__sqrt) __sqrt_ppc32 attribute_hidden;
+extern __typeof (__sqrt) __sqrt_power5 attribute_hidden;
+
+libc_ifunc (__sqrt,
+	    (hwcap & PPC_FEATURE_POWER5)
+	    ? __sqrt_power5
+	    : __sqrt_ppc32);
+
+weak_alias (__sqrt, sqrt)
+
+#ifdef NO_LONG_DOUBLE
+strong_alias (__sqrt, __sqrtl)
+weak_alias (__sqrt, sqrtl)
+#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __sqrt, sqrtl, GLIBC_2_0);
+#endif
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf-power5.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf-power5.S
new file mode 100644
index 0000000..e65aab4
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf-power5.S
@@ -0,0 +1,26 @@
+/* sqrtf 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>
+
+#undef weak_alias
+#define weak_alias(a,b)
+
+#define __sqrtf __sqrtf_power5
+
+#include <sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf-ppc32.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf-ppc32.S
new file mode 100644
index 0000000..647fecc
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf-ppc32.S
@@ -0,0 +1,26 @@
+/* sqrtf 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>
+
+#undef weak_alias
+#define weak_alias(a,b)
+
+#define __sqrtf __sqrtf_ppc32
+
+#include <sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf.c
new file mode 100644
index 0000000..90a05f4
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf.c
@@ -0,0 +1,32 @@
+/* Multiple versions of sqrtf.
+   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 (__sqrtf) __sqrtf_ppc32 attribute_hidden;
+extern __typeof (__sqrtf) __sqrtf_power5 attribute_hidden;
+
+libc_ifunc (__sqrtf,
+	    (hwcap & PPC_FEATURE_POWER5)
+	    ? __sqrtf_power5
+	    : __sqrtf_ppc32);
+
+weak_alias (__sqrtf, sqrtf)
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