From fa809e97912e4bb6faafa74c15a86588c05e89bc Mon Sep 17 00:00:00 2001
From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Date: Wed, 30 Jul 2014 12:04:31 -0500
Subject: [PATCH] PowerPC: multiarch logb/logbl/logbf for PowerPC64
commit 43e246d2a6a75710fbe3d3f3db23db3aeb8a9f93
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Dec 13 15:36:33 2013 -0500
Added the following file apart from the original commit.
sysdeps/powerpc/power7/fpu/s_logb.c
sysdeps/powerpc/power7/fpu/s_logbf.c
sysdeps/powerpc/power7/fpu/s_logbl.c
sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-power7.c
sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-power7.c
sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-power7.c
---
sysdeps/ieee754/ldbl-128ibm/s_logbl.c | 2 +
sysdeps/powerpc/power7/fpu/s_logb.c | 78 ++++++++++++++++++++++
sysdeps/powerpc/power7/fpu/s_logbf.c | 60 +++++++++++++++++
sysdeps/powerpc/power7/fpu/s_logbl.c | 72 ++++++++++++++++++++
.../powerpc32/power4/fpu/multiarch/s_logb-power7.c | 31 +++++++++
.../power4/fpu/multiarch/s_logbf-power7.c | 26 ++++++++
.../power4/fpu/multiarch/s_logbl-power7.c | 21 ++++++
sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile | 8 ++-
.../powerpc64/fpu/multiarch/s_logb-power7.c | 19 ++++++
.../powerpc/powerpc64/fpu/multiarch/s_logb-ppc64.c | 28 ++++++++
sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb.c | 41 ++++++++++++
.../powerpc64/fpu/multiarch/s_logbf-power7.c | 19 ++++++
.../powerpc64/fpu/multiarch/s_logbf-ppc64.c | 26 ++++++++
sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf.c | 32 +++++++++
.../powerpc64/fpu/multiarch/s_logbl-power7.c | 19 ++++++
.../powerpc64/fpu/multiarch/s_logbl-ppc64.c | 21 ++++++
sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl.c | 32 +++++++++
17 files changed, 534 insertions(+), 1 deletion(-)
create mode 100644 sysdeps/powerpc/power7/fpu/s_logb.c
create mode 100644 sysdeps/powerpc/power7/fpu/s_logbf.c
create mode 100644 sysdeps/powerpc/power7/fpu/s_logbl.c
create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-power7.c
create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-power7.c
create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-power7.c
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb-power7.c
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb-ppc64.c
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb.c
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf-power7.c
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf-ppc64.c
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf.c
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl-power7.c
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl-ppc64.c
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl.c
diff --git glibc-2.17-c758a686/sysdeps/ieee754/ldbl-128ibm/s_logbl.c glibc-2.17-c758a686/sysdeps/ieee754/ldbl-128ibm/s_logbl.c
index 6cbfcfa..28a50de 100644
--- glibc-2.17-c758a686/sysdeps/ieee754/ldbl-128ibm/s_logbl.c
+++ glibc-2.17-c758a686/sysdeps/ieee754/ldbl-128ibm/s_logbl.c
@@ -44,4 +44,6 @@ __logbl (long double x)
return (long double) (rhx - 1023);
}
+#ifndef __logbl
long_double_symbol (libm, __logbl, logbl);
+#endif
diff --git glibc-2.17-c758a686/sysdeps/powerpc/power7/fpu/s_logb.c glibc-2.17-c758a686/sysdeps/powerpc/power7/fpu/s_logb.c
new file mode 100644
index 0000000..87176c3
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/power7/fpu/s_logb.c
@@ -0,0 +1,78 @@
+/* logb(). PowerPC/POWER7 version.
+ Copyright (C) 2012 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_ldbl_opt.h>
+
+/* This implementation avoids FP to INT conversions by using VSX
+ bitwise instructions over FP values. */
+
+static const double two1div52 = 2.220446049250313e-16; /* 1/2**52 */
+static const double two10m1 = -1023.0; /* 2**10 -1 */
+
+/* FP mask to extract the exponent. */
+static const union {
+ unsigned long long mask;
+ double d;
+} mask = { 0x7ff0000000000000ULL };
+
+double
+__logb (double x)
+{
+ double ret;
+
+ if (__builtin_expect (x == 0.0, 0))
+ /* Raise FE_DIVBYZERO and return -HUGE_VAL[LF]. */
+ return -1.0 / __builtin_fabs (x);
+
+ /* ret = x & 0x7ff0000000000000; */
+ asm (
+ "xxland %x0,%x1,%x2\n"
+ "fcfid %0,%0"
+ : "=f" (ret)
+ : "f" (x), "f" (mask.d));
+ /* ret = (ret >> 52) - 1023.0; */
+ ret = (ret * two1div52) + two10m1;
+ if (__builtin_expect (ret > -two10m1, 0))
+ /* Multiplication is used to set logb (+-INF) = INF. */
+ return (x * x);
+ else if (__builtin_expect (ret == two10m1, 0))
+ {
+ /* POSIX specifies that denormal numbers are treated as
+ though they were normalized. */
+ int32_t lx, ix;
+ int ma;
+
+ EXTRACT_WORDS (ix, lx, x);
+ if (ix == 0)
+ ma = __builtin_clz (lx) + 32;
+ else
+ ma = __builtin_clz (ix);
+ return (double) (-1023 - (ma - 12));
+ }
+ /* Test to avoid logb_downward (0.0) == -0.0. */
+ return ret == -0.0 ? 0.0 : ret;
+}
+weak_alias (__logb, logb)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__logb, __logbl)
+weak_alias (__logb, logbl)
+#endif
+
+#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_0)
+compat_symbol (libm, logb, logbl, GLIBC_2_0);
+#endif
diff --git glibc-2.17-c758a686/sysdeps/powerpc/power7/fpu/s_logbf.c glibc-2.17-c758a686/sysdeps/powerpc/power7/fpu/s_logbf.c
new file mode 100644
index 0000000..aa8499a
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/power7/fpu/s_logbf.c
@@ -0,0 +1,60 @@
+/* logbf(). PowerPC/POWER7 version.
+ Copyright (C) 2012 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_private.h"
+
+/* This implementation avoids FP to INT conversions by using VSX
+ bitwise instructions over FP values. */
+
+static const double two1div52 = 2.220446049250313e-16; /* 1/2**52 */
+static const double two10m1 = -1023.0; /* -2**10 + 1 */
+static const double two7m1 = -127.0; /* -2**7 + 1 */
+
+/* FP mask to extract the exponent. */
+static const union {
+ unsigned long long mask;
+ double d;
+} mask = { 0x7ff0000000000000ULL };
+
+float
+__logbf (float x)
+{
+ /* VSX operation are all done internally as double. */
+ double ret;
+
+ if (__builtin_expect (x == 0.0, 0))
+ /* Raise FE_DIVBYZERO and return -HUGE_VAL[LF]. */
+ return -1.0 / __builtin_fabsf (x);
+
+ /* ret = x & 0x7f800000; */
+ asm (
+ "xxland %x0,%x1,%x2\n"
+ "fcfid %0,%0"
+ : "=f"(ret)
+ : "f" (x), "f" (mask.d));
+ /* ret = (ret >> 52) - 1023.0, since ret is double. */
+ ret = (ret * two1div52) + two10m1;
+ if (__builtin_expect (ret > -two7m1, 0))
+ /* Multiplication is used to set logb (+-INF) = INF. */
+ return (x * x);
+ /* Since operations are done with double we don't need
+ additional tests for subnormal numbers.
+ The test is to avoid logb_downward (0.0) == -0.0. */
+ return ret == -0.0 ? 0.0 : ret;
+}
+weak_alias (__logbf, logbf)
diff --git glibc-2.17-c758a686/sysdeps/powerpc/power7/fpu/s_logbl.c glibc-2.17-c758a686/sysdeps/powerpc/power7/fpu/s_logbl.c
new file mode 100644
index 0000000..e1ec089
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/power7/fpu/s_logbl.c
@@ -0,0 +1,72 @@
+/* logbl(). PowerPC/POWER7 version.
+ Copyright (C) 2012 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_private.h>
+#include <math_ldbl_opt.h>
+
+/* This implementation avoids FP to INT conversions by using VSX
+ bitwise instructions over FP values. */
+
+static const double two1div52 = 2.220446049250313e-16; /* 1/2**52 */
+static const double two10m1 = -1023.0; /* 2**10 -1 */
+
+/* FP mask to extract the exponent. */
+static const union {
+ unsigned long long mask;
+ double d;
+} mask = { 0x7ff0000000000000ULL };
+
+long double
+__logbl (long double x)
+{
+ double xh, xl;
+ double ret;
+
+ if (__builtin_expect (x == 0.0L, 0))
+ /* Raise FE_DIVBYZERO and return -HUGE_VAL[LF]. */
+ return -1.0L / __builtin_fabsl (x);
+
+ ldbl_unpack (x, &xh, &xl);
+ /* ret = x & 0x7ff0000000000000; */
+ asm (
+ "xxland %x0,%x1,%x2\n"
+ "fcfid %0,%0"
+ : "=f" (ret)
+ : "f" (xh), "f" (mask.d));
+ /* ret = (ret >> 52) - 1023.0; */
+ ret = (ret * two1div52) + two10m1;
+ if (__builtin_expect (ret > -two10m1, 0))
+ /* Multiplication is used to set logb (+-INF) = INF. */
+ return (xh * xh);
+ else if (__builtin_expect (ret == two10m1, 0))
+ {
+ /* POSIX specifies that denormal number is treated as
+ though it were normalized. */
+ int64_t lx, hx;
+
+ GET_LDOUBLE_WORDS64 (hx, lx, x);
+ return (long double) (-1023 - (__builtin_clzll (hx) - 12));
+ }
+ /* Test to avoid logb_downward (0.0) == -0.0. */
+ return ret == -0.0 ? 0.0 : ret;
+}
+
+#ifndef __logbl
+long_double_symbol (libm, __logbl, logbl);
+#endif
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-power7.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-power7.c
new file mode 100644
index 0000000..3280566
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-power7.c
@@ -0,0 +1,31 @@
+/* logb(). PowerPC32/POWER7 version.
+ Copyright (C) 2013-2014 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>
+
+#undef weak_alias
+#define weak_alias(a, b)
+#undef strong_alias
+#define strong_alias(a, b)
+#undef compat_symbol
+#define compat_symbol(lib, name, alias, ver)
+
+#define __logb __logb_power7
+
+#include <sysdeps/powerpc/power7/fpu/s_logb.c>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-power7.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-power7.c
new file mode 100644
index 0000000..6531af0
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-power7.c
@@ -0,0 +1,26 @@
+/* logbf(). PowerPC32/POWER7 version.
+ Copyright (C) 2013-2014 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>
+
+#undef weak_alias
+#define weak_alias(a, b)
+
+#define __logbf __logbf_power7
+
+#include <sysdeps/powerpc/power7/fpu/s_logbf.c>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-power7.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-power7.c
new file mode 100644
index 0000000..7c5ad47
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-power7.c
@@ -0,0 +1,21 @@
+/* logbl(). PowerPC32/POWER7 version.
+ Copyright (C) 2013-2014 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 __logbl __logbl_power7
+
+#include <sysdeps/powerpc/power7/fpu/s_logbl.c>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
index 64dd85f..87aabca 100644
--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
@@ -16,5 +16,11 @@ libm-sysdep_routines += s_isnan-power7 s_isnan-power6x s_isnan-power6 \
s_copysign-power6 s_copysign-ppc64 s_llrint-power6x \
s_llrint-ppc64 s_finite-power7 s_finite-ppc64 \
s_finitef-ppc64 s_isinff-ppc64 s_isinf-power7 \
- s_isinf-ppc64
+ s_isinf-ppc64 s_logb-power7 s_logbf-power7 \
+ s_logbl-power7 s_logb-ppc64 s_logbf-ppc64 \
+ s_logbl-ppc64
+
+CFLAGS-s_logbf-power7.c = -mcpu=power7
+CFLAGS-s_logbl-power7.c = -mcpu=power7
+CFLAGS-s_logb-power7.c = -mcpu=power7
endif
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb-power7.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb-power7.c
new file mode 100644
index 0000000..049f2c1
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb-power7.c
@@ -0,0 +1,19 @@
+/* logb(). PowerPC64/POWER7 version.
+ Copyright (C) 2013-2014 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 <sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-power7.c>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb-ppc64.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb-ppc64.c
new file mode 100644
index 0000000..41d1d9b
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb-ppc64.c
@@ -0,0 +1,28 @@
+/* logb(). PowerPC32/POWER7 version.
+ Copyright (C) 2013-2014 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>
+
+#undef weak_alias
+#define weak_alias(a, b)
+#undef strong_alias
+#define strong_alias(a, b)
+
+#define __logb __logb_ppc64
+
+#include <sysdeps/ieee754/dbl-64/s_logb.c>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb.c
new file mode 100644
index 0000000..e14efa7
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb.c
@@ -0,0 +1,41 @@
+/* Multiple versions of logb.
+ Copyright (C) 2013-2014 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 (__logb) __logb_ppc64 attribute_hidden;
+extern __typeof (__logb) __logb_power7 attribute_hidden;
+
+libc_ifunc (__logb,
+ (hwcap & PPC_FEATURE_ARCH_2_06)
+ ? __logb_power7
+ : __logb_ppc64);
+
+weak_alias (__logb, logb)
+
+#ifdef NO_LONG_DOUBLE
+strong_alias (__logb, __logbl)
+weak_alias (__logb, logbl)
+#endif
+
+#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_0)
+compat_symbol (libm, logb, logbl, GLIBC_2_0);
+#endif
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf-power7.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf-power7.c
new file mode 100644
index 0000000..5e4e4fc
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf-power7.c
@@ -0,0 +1,19 @@
+/* logb(). PowerPC64/POWER7 version.
+ Copyright (C) 2013-2014 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 <sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-power7.c>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf-ppc64.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf-ppc64.c
new file mode 100644
index 0000000..08674a6
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf-ppc64.c
@@ -0,0 +1,26 @@
+/* logbf(). PowerPC64 default implementation.
+ Copyright (C) 2013-2014 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>
+
+#undef weak_alias
+#define weak_alias(a, b)
+
+#define __logbf __logbf_ppc64
+
+#include <sysdeps/ieee754/flt-32/s_logbf.c>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf.c
new file mode 100644
index 0000000..01f9ecb
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf.c
@@ -0,0 +1,32 @@
+/* Multiple versions of logbf.
+ Copyright (C) 2013-2014 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 (__logbf) __logbf_ppc64 attribute_hidden;
+extern __typeof (__logbf) __logbf_power7 attribute_hidden;
+
+libc_ifunc (__logbf,
+ (hwcap & PPC_FEATURE_ARCH_2_06)
+ ? __logbf_power7
+ : __logbf_ppc64);
+
+weak_alias (__logbf, logbf)
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl-power7.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl-power7.c
new file mode 100644
index 0000000..258d502
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl-power7.c
@@ -0,0 +1,19 @@
+/* logb(). PowerPC64/POWER7 version.
+ Copyright (C) 2013-2014 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 <sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-power7.c>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl-ppc64.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl-ppc64.c
new file mode 100644
index 0000000..47d4153
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl-ppc64.c
@@ -0,0 +1,21 @@
+/* logbl(). PowerPC64/POWER7 version.
+ Copyright (C) 2012-2014 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 __logbl __logbl_ppc64
+
+#include <sysdeps/ieee754/ldbl-128ibm/s_logbl.c>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl.c
new file mode 100644
index 0000000..cb0b0c5
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbl.c
@@ -0,0 +1,32 @@
+/* Multiple versions of logbl.
+ Copyright (C) 2013-2014 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 (__logbl) __logbl_ppc64 attribute_hidden;
+extern __typeof (__logbl) __logbl_power7 attribute_hidden;
+
+libc_ifunc (__logbl,
+ (hwcap & PPC_FEATURE_ARCH_2_06)
+ ? __logbl_power7
+ : __logbl_ppc64);
+
+long_double_symbol (libm, __logbl, logbl);
--
1.8.3.1