diff mbox series

[4/4] powerpc64le: ifunc (almost) all *f128 routines in multiarch mode

Message ID 85f946d6be11c064d5da352b245a9cbb28d0a639.1588628261.git.murphyp@linux.vnet.ibm.com
State New
Headers show
Series [1/4] ldbl-128: refactor nexttoward alias using new macro | expand

Commit Message

Paul E. Murphy May 4, 2020, 10:23 p.m. UTC
Programatically generate simple wrappers for most libm *f128
objects and a set of ifunc objects to unify them.

A second set of implementation files are generated which simply
include the first implementation encountered along the search
path.  This usually works, excepting when a wrapper is overriden
and makefile search order slightly diverges from include order.

A set of additional headers are included which primarily rely
on asm redirects to rename, and less frequently macro renames
where an asm redirect is not possible.  These intercept several
common headers to install redirect and disable macros at specific
times.  This works surprisingly well.  Notably, some ugliness
occurs when header inclusion must be coerced at certain times
before turning off aliasing and plt bypass wrappers.

Notably, the only special case is s_significandf128.c.  It is
doubly special as exists to support ldouble redirects, and
exposes subtle difference between makefile rules and search path
orders.  Commentary is inlined.

Admittedly, this makes shared maintenance a tiny bit more
difficult, but lays groundwork for supporting more optimized
float128 routines which very overtly assume a soft-fp runtime.
Changes to internal float128 API should fail at compile time,
thus build-many-glibcs.py should readily catch any divergence.

Finally, don't build this support if requested CPU is newer
than power8.
---
 .../powerpc64/le/fpu/multiarch/Makefile       | 103 +++++++++-
 .../le/fpu/multiarch/float128-ifunc-macros.h  |  71 +++++++
 .../multiarch/float128-ifunc-redirects-mp.h   |  68 +++++++
 .../fpu/multiarch/float128-ifunc-redirects.h  |  40 ++++
 .../le/fpu/multiarch/float128-ifunc.c         |  63 ++++++
 .../le/fpu/multiarch/float128-ifunc.h         | 183 ++++++++++++++++++
 .../le/fpu/multiarch/float128_private.h       | 136 +++++++++++++
 .../fpu/multiarch/math-type-macros-float128.h | 129 ++++++++++++
 .../powerpc64/le/fpu/multiarch/math_private.h |  14 ++
 .../le/fpu/multiarch/s_fmaf128-power9.c       |  26 ---
 .../le/fpu/multiarch/s_fmaf128-ppc64.c        |  26 ---
 .../powerpc64/le/fpu/multiarch/s_fmaf128.c    |  36 ----
 .../le/fpu/multiarch/w_sqrtf128-power9.c      |  35 ----
 .../le/fpu/multiarch/w_sqrtf128-ppc64le.c     |  35 ----
 .../powerpc64/le/fpu/multiarch/w_sqrtf128.c   |  31 ---
 15 files changed, 801 insertions(+), 195 deletions(-)
 create mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-macros.h
 create mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects-mp.h
 create mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects.h
 create mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.c
 create mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.h
 create mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128_private.h
 create mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/math-type-macros-float128.h
 create mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/math_private.h
 delete mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128-power9.c
 delete mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128-ppc64.c
 delete mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128.c
 delete mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-power9.c
 delete mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-ppc64le.c
 delete mode 100644 sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128.c

Comments

Joseph Myers May 5, 2020, 12:07 a.m. UTC | #1
On Mon, 4 May 2020, Paul E. Murphy via Libc-alpha wrote:

> A set of additional headers are included which primarily rely
> on asm redirects to rename, and less frequently macro renames
> where an asm redirect is not possible.  These intercept several
> common headers to install redirect and disable macros at specific
> times.  This works surprisingly well.  Notably, some ugliness
> occurs when header inclusion must be coerced at certain times
> before turning off aliasing and plt bypass wrappers.
> 
> Notably, the only special case is s_significandf128.c.  It is
> doubly special as exists to support ldouble redirects, and
> exposes subtle difference between makefile rules and search path
> orders.  Commentary is inlined.
> 
> Admittedly, this makes shared maintenance a tiny bit more
> difficult, but lays groundwork for supporting more optimized
> float128 routines which very overtly assume a soft-fp runtime.
> Changes to internal float128 API should fail at compile time,
> thus build-many-glibcs.py should readily catch any divergence.

Please ensure that every new macro (F128_MP_REDIR_R, F128_MP_REDIR, 
F128_C_REDIR, F128_TRIG_REDIR, etc.) has a detailed comment explaining its 
semantics and when it should be used.

Some detailed documentation is also needed, in a checked-in file, maybe 
sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile, not just in a commit 
message, of the overall design of this ifunc system.  That documentation 
needs to make clear what the rules are that determine, for any new libm 
function (so no compat symbols involved), exactly what redirects etc. 
should be present in what files for this ifunc system to work correctly 
for that function.

> +# Only enable this for generic (P8 or older) multiarch builds
> +ifeq ($(cflags-cpu),"")
> +do_f128_multiarch = yes

Although not a requirement for this patch, I'd like to remind people that 
--with-cpu= (which sets cflags-cpu) is an obsolescent way of configuring 
CPU optimizations and automatic detection of the CPU selected by $CC 
$CFLAGS $CPPFLAGS is preferred.  See 
<https://sourceware.org/legacy-ml/libc-alpha/2017-02/msg00154.html> for a 
previous submission of a patch (needing revision) to start moving powerpc 
to the preferred system.
Andreas Schwab May 5, 2020, 7:07 a.m. UTC | #2
On Mai 04 2020, Paul E. Murphy via Libc-alpha wrote:

> +$(objpfx)gen-float128-ifuncs.stmp: Makefile
> +	$(make-target-directory)
> +	for gcall in $(gen-libm-f128-ifunc-calls); do    \
> +	  ifile="$${gcall}";                             \
> +	  if [ $${gcall##m_} != $${gcall} ]; then        \
> +	    ifile="s_$${gcall##m_}";                     \
> +	  fi;                                            \
> +	  for cpu in $(f128-march-cpus); do              \
> +	    file=$(objpfx)$${gcall}-$${cpu}.c;           \
> +	    (                                            \
> +	      echo "#include <$${ifile}.c>";             \
> +	    ) > $${file};                                \

There is no need to spawn a subshell here.

> +	  done;                                          \
> +	                                                 \
> +	  name="$${gcall##?_}";                          \
> +	  pfx="$${gcall%%_*}";                           \
> +	  R="";                                          \
> +	  r="";                                          \
> +	  if [ $${gcall##m_} != $${gcall} ]; then        \
> +	    pfx="s";                                     \
> +	  fi;                                            \
> +	  if [ $${#pfx} != 1 ]; then                     \
> +	    pfx="";                                      \
> +	  else                                           \
> +	    pfx="_$${pfx}";                              \
> +	  fi;                                            \
> +	  if [ $${name%%_r} != $${name} ]; then          \
> +	    R="_R";                                      \
> +	    r="_r";                                      \
> +	    name="$${name%%_r}";                         \
> +	  fi;                                            \
> +	  name="$${name%%f128}";                         \
> +	  decl="DECL_ALIAS$${pfx}_$${name}$${r}";        \
> +	  declc="DECL_ALIAS$${R}$${pfx}";                \
> +	  (                                              \
> +	    echo "#include <float128-ifunc.h>";          \
> +	    echo "#ifndef $${decl}";                     \
> +	    echo "# define $${decl}(f) $${declc} (f)";   \
> +	    echo "#endif";                               \
> +	    echo "$${decl} ($${name});";                 \
> +	  ) > $(objpfx)$${gcall}-ifunc.c;                \

Likewise.

Andreas.
diff mbox series

Patch

diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile
index 8747b02127..c79fc497cf 100644
--- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile
@@ -1,10 +1,101 @@ 
 ifeq ($(subdir),math)
-libm-sysdep_routines += s_fmaf128-ppc64 s_fmaf128-power9 \
-			w_sqrtf128-power9 w_sqrtf128-ppc64le
+# Only enable this for generic (P8 or older) multiarch builds
+ifeq ($(cflags-cpu),"")
+do_f128_multiarch = yes
+else ifneq ($(filter %power8,$(cflags-cpu)),)
+do_f128_multiarch = yes
+endif
+ifeq ($(do_f128_multiarch),yes)
+
+gen-libm-all-f128-ifunc-calls = \
+	$(strip $(subst F,$(type-float128-suffix),$(libm-calls)) \
+		$(foreach f,$(libm-narrow-fns),$(subst F,$(f),$(libm-narrow-types-float128-yes))) \
+		$(type-float128-routines))
+
+# Some functions are not trivial to ifunc today without some extensive refactoring.
+# totalorder{,mag} have no benefit to native IEEE support and have complex versioning requirements.
+# Likewise, tables require no special treatment.
+gen-libm-f128-no-ifunc-calls := s_totalorderf128 s_totalordermagf128 t_sincosf128
+gen-libm-f128-ifunc-calls = $(filter-out $(gen-libm-f128-no-ifunc-calls),$(gen-libm-all-f128-ifunc-calls))
+
+f128-march-routines-p9 = $(addsuffix -power9,$(gen-libm-f128-ifunc-calls))
+f128-march-routines-ifunc = $(addsuffix -ifunc,$(gen-libm-f128-ifunc-calls))
+f128-march-routines = $(f128-march-routines-p9) $(f128-march-routines-ifunc)
+f128-march-cpus = power9
+
+libm-routines += $(f128-march-routines) float128-ifunc
+generated += $(f128-march-routines)
+
+# These can't be easily IFUNC'ed today.
+CPPFLAGS-s_totalorderf128.c += -D_F128_DISABLE_IFUNC
+CPPFLAGS-s_totalordermagf128.c += -D_F128_DISABLE_IFUNC
+CPPFLAGS-float128-ifunc.c += -D_F128_DISABLE_IFUNC
+
+CFLAGS-float128-ifunc.c += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
+
+# Copy special CFLAGS for some functions
+CFLAGS-m_modff128-power9.c += -fsignaling-nans
+
+# Generate wrapper objects for each machine,
+# and a separate ifunc wrapper.  Likewise substitute
+# m_%.c files should include s_%.c to match common libm rules.
+$(objpfx)gen-float128-ifuncs.stmp: Makefile
+	$(make-target-directory)
+	for gcall in $(gen-libm-f128-ifunc-calls); do    \
+	  ifile="$${gcall}";                             \
+	  if [ $${gcall##m_} != $${gcall} ]; then        \
+	    ifile="s_$${gcall##m_}";                     \
+	  fi;                                            \
+	  for cpu in $(f128-march-cpus); do              \
+	    file=$(objpfx)$${gcall}-$${cpu}.c;           \
+	    (                                            \
+	      echo "#include <$${ifile}.c>";             \
+	    ) > $${file};                                \
+	  done;                                          \
+	                                                 \
+	  name="$${gcall##?_}";                          \
+	  pfx="$${gcall%%_*}";                           \
+	  R="";                                          \
+	  r="";                                          \
+	  if [ $${gcall##m_} != $${gcall} ]; then        \
+	    pfx="s";                                     \
+	  fi;                                            \
+	  if [ $${#pfx} != 1 ]; then                     \
+	    pfx="";                                      \
+	  else                                           \
+	    pfx="_$${pfx}";                              \
+	  fi;                                            \
+	  if [ $${name%%_r} != $${name} ]; then          \
+	    R="_R";                                      \
+	    r="_r";                                      \
+	    name="$${name%%_r}";                         \
+	  fi;                                            \
+	  name="$${name%%f128}";                         \
+	  decl="DECL_ALIAS$${pfx}_$${name}$${r}";        \
+	  declc="DECL_ALIAS$${R}$${pfx}";                \
+	  (                                              \
+	    echo "#include <float128-ifunc.h>";          \
+	    echo "#ifndef $${decl}";                     \
+	    echo "# define $${decl}(f) $${declc} (f)";   \
+	    echo "#endif";                               \
+	    echo "$${decl} ($${name});";                 \
+	  ) > $(objpfx)$${gcall}-ifunc.c;                \
+	done;                                            \
+	echo > $(@)
+
+$(foreach f,$(f128-march-routines),$(objpfx)$(f).c): $(objpfx)gen-float128-ifuncs.stmp
+
+include $(o-iterator)
+define o-iterator-doit
+$(foreach f,$(f128-march-routines-p9),$(objpfx)$(f)$(o)): sysdep-CFLAGS += -mcpu=power9 $$(type-float128-CFLAGS) $$(no-gnu-attributes-CFLAGS)
+endef
+object-suffixes-left := $(all-object-suffixes)
+include $(o-iterator)
+
+else
 
-CFLAGS-s_fmaf128-ppc64.c += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
-CFLAGS-s_fmaf128-power9.c += $(type-float128-CFLAGS) -mcpu=power9 $(no-gnu-attribute-CFLAGS)
+# Minimum CPU is more than POWER9, this support is not needed.
+math-CPPFLAGS += -D_F128_DISABLE_IFUNC
 
-CFLAGS-w_sqrtf128-ppc64le.c += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
-CFLAGS-w_sqrtf128-power9.c += $(type-float128-CFLAGS) -mcpu=power9 $(no-gnu-attribute-CFLAGS)
+endif # do_f128_multiarch
 endif
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-macros.h b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-macros.h
new file mode 100644
index 0000000000..4a42646d61
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-macros.h
@@ -0,0 +1,71 @@ 
+/* _Float128 aliasing macro support for ifunc generation on PPC.
+   Copyright (C) 2020 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _FLOAT128_IFUNC_MACROS_PPC64LE
+#define _FLOAT128_IFUNC_MACROS_PPC64LE 1
+
+/* Bring in the various alias providing headers, and disable
+   those used for _Float128.  We will carefully supply these
+   in a more controlled mannder via float128-ifunc.c */
+#include <libm-alias-float128.h>
+#include <math-narrow.h>
+#include <libm-alias-finite.h>
+
+#undef libm_alias_float32_float128
+#undef libm_alias_float64_float128
+#undef libm_alias_float64x_float128
+#undef libm_alias_float128_r
+#undef libm_alias_finite
+#undef libm_alias_exclusive_ldouble
+#undef libm_alias_float128_other_r_ldbl
+#undef declare_mgen_finite_alias
+#undef declare_mgen_alias
+#undef declare_mgen_alias_r
+
+#define libm_alias_finite(from, to)
+#define libm_alias_float128_r(from, to, r)
+#define libm_alias_float32_float128(func)
+#define libm_alias_float64_float128(func)
+#define libm_alias_float64x_float128(func)
+#define libm_alias_exclusive_ldouble(from, to)
+#define libm_alias_float128_other_r_ldbl(from, to, r)
+#define declare_mgen_finite_alias(from, to)
+#define declare_mgen_alias(from, to)
+#define declare_mgen_alias_r(from, to)
+
+/* Likewise, no need for most hidden symbols.  Disable these
+   to avoid complications. */
+#undef mathx_hidden_def
+#define mathx_hidden_def(func)
+#undef libm_hidden_def
+#define libm_hidden_def(func)
+#undef libm_hidden_proto
+#define libm_hidden_proto(f)
+
+/* And some shared helper macros.  */
+#ifndef _ARCH_PWR9
+#define F128_REDIR_PFX_R(func, pfx, r) extern __typeof(func ## r) func ## r __asm( #pfx #func "_power8" #r );
+#define F128_SFX_APPEND(x) x ## _power8
+#else
+#define F128_REDIR_PFX_R(func, pfx, r) extern __typeof(func ## r) func ## r __asm( #pfx #func "_power9" #r );
+#define F128_SFX_APPEND(x) x ## _power9
+#endif
+#define F128_REDIR_R(func,r) F128_REDIR_PFX_R (func, , r)
+#define F128_REDIR(func) F128_REDIR_R (func, )
+
+#endif /* _FLOAT128_IFUNC_MACROS_PPC64LE */
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects-mp.h b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects-mp.h
new file mode 100644
index 0000000000..fd13bd15df
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects-mp.h
@@ -0,0 +1,68 @@ 
+/* _Float128 multiarch redirects shared with math_private.h
+   Copyright (C) 2020 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifdef _ARCH_PWR9
+# define MA_VARIANT "_power9"
+#else
+# define MA_VARIANT "_power8"
+#endif
+#define F128_MP_REDIR_R(f, r) extern __typeof (f ## r) f ## r asm (#f MA_VARIANT #r);
+#define F128_MP_REDIR(f) F128_MP_REDIR_R (f,)
+
+F128_MP_REDIR (__ieee754_acosf128)
+F128_MP_REDIR (__ieee754_acoshf128)
+F128_MP_REDIR (__ieee754_asinf128)
+F128_MP_REDIR (__ieee754_atan2f128)
+F128_MP_REDIR (__ieee754_atanhf128)
+F128_MP_REDIR (__ieee754_coshf128)
+F128_MP_REDIR (__ieee754_expf128)
+F128_MP_REDIR (__ieee754_exp10f128)
+F128_MP_REDIR (__ieee754_exp2f128)
+F128_MP_REDIR (__ieee754_fmodf128)
+F128_MP_REDIR (__ieee754_gammaf128)
+F128_MP_REDIR_R (__ieee754_gammaf128, _r)
+F128_MP_REDIR (__ieee754_hypotf128)
+F128_MP_REDIR (__ieee754_j0f128)
+F128_MP_REDIR (__ieee754_j1f128)
+F128_MP_REDIR (__ieee754_jnf128)
+F128_MP_REDIR (__ieee754_lgammaf128)
+F128_MP_REDIR_R (__ieee754_lgammaf128, _r)
+F128_MP_REDIR (__ieee754_logf128)
+F128_MP_REDIR (__ieee754_log10f128)
+F128_MP_REDIR (__ieee754_log2f128)
+F128_MP_REDIR (__ieee754_powf128)
+F128_MP_REDIR (__ieee754_remainderf128)
+F128_MP_REDIR (__ieee754_sinhf128)
+F128_MP_REDIR (__ieee754_sqrtf128)
+F128_MP_REDIR (__ieee754_y0f128)
+F128_MP_REDIR (__ieee754_y1f128)
+F128_MP_REDIR (__ieee754_ynf128)
+F128_MP_REDIR (__ieee754_scalbf128)
+F128_MP_REDIR (__ieee754_ilogbf128)
+F128_MP_REDIR (__ieee754_rem_pio2f128)
+F128_MP_REDIR (__kernel_sinf128)
+F128_MP_REDIR (__kernel_cosf128)
+F128_MP_REDIR (__kernel_tanf128)
+F128_MP_REDIR (__kernel_sincosf128)
+F128_MP_REDIR (__kernel_rem_pio2f128)
+F128_MP_REDIR (__x2y2m1f128)
+F128_MP_REDIR (__gamma_productf128)
+F128_MP_REDIR (__lgamma_negf128)
+
+#undef F128_MP_REDIR
+#undef F128_MP_REDIR_R
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects.h b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects.h
new file mode 100644
index 0000000000..88b71558b0
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects.h
@@ -0,0 +1,40 @@ 
+/* _Float128 redirects for ppc64le multiarch env.
+   Copyright (C) 2020 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _FLOAT128_IFUNC_REDIRECTS
+#define _FLOAT128_IFUNC_REDIRECTS 1
+
+#include <float128-ifunc-macros.h>
+
+F128_REDIR_PFX_R (sqrtf128, __,);
+F128_REDIR_PFX_R (rintf128, __,);
+F128_REDIR_PFX_R (ceilf128, __,);
+F128_REDIR_PFX_R (floorf128, __,);
+F128_REDIR_PFX_R (truncf128, __,);
+F128_REDIR_PFX_R (roundf128, __,);
+F128_REDIR_PFX_R (fabsf128, __,);
+F128_REDIR (__issignalingf128)
+
+extern __typeof (ldexpf128) F128_SFX_APPEND (__ldexpf128);
+
+#define __isinff128 F128_SFX_APPEND (__isinff128)
+#define __isnanf128 F128_SFX_APPEND (__isnanf128)
+#define __finitef128 F128_SFX_APPEND (__finitef128)
+#define __ldexpf128 F128_SFX_APPEND (__ldexpf128)
+
+#endif /* _FLOAT128_IFUNC_REDIRECTS */
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.c
new file mode 100644
index 0000000000..114d748b07
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.c
@@ -0,0 +1,63 @@ 
+/* _Float128 ifunc definitions for compat symbols.
+   Copyright (C) 2017-2020 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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <float128-ifunc.h>
+
+#if SHLIB_COMPAT (libm, GLIBC_2_15, GLIBC_2_31)
+
+/* __gammaf128_r is a special case.  This prototype keeps compat macro simple. */
+extern _Float128 gammaf128_r (_Float128 x, int *signamp);
+
+#define MAKE_IFUNC_COMPAT_R(func,r) \
+	extern __typeof(func ## r) __ieee754_ ## func ## _power8 ## r; \
+	extern __typeof(func ## r) __ieee754_ ## func ## _power9 ## r; \
+	extern __typeof(func ## r) __ieee754_ ## func ## r; \
+	_F128_IFUNC(__ieee754_ ## func, r); \
+	compat_symbol (libm, __ieee754_ ## func ## r, __ ## func ## r ## _finite, FIRST_VERSION_libm___ ## func ## r ## _finite);
+#else
+#define MAKE_IFUNC_COMPAT_R(func,r)
+#endif
+
+#define MAKE_IFUNC_COMPAT(func) MAKE_IFUNC_COMPAT_R(func,)
+
+MAKE_IFUNC_COMPAT (acosf128)
+MAKE_IFUNC_COMPAT (acoshf128)
+MAKE_IFUNC_COMPAT (asinf128)
+MAKE_IFUNC_COMPAT (atan2f128)
+MAKE_IFUNC_COMPAT (atanhf128)
+MAKE_IFUNC_COMPAT (coshf128)
+MAKE_IFUNC_COMPAT (exp10f128)
+MAKE_IFUNC_COMPAT (exp2f128)
+MAKE_IFUNC_COMPAT (expf128)
+MAKE_IFUNC_COMPAT (fmodf128)
+MAKE_IFUNC_COMPAT_R (gammaf128, _r)
+MAKE_IFUNC_COMPAT (hypotf128)
+MAKE_IFUNC_COMPAT (j0f128)
+MAKE_IFUNC_COMPAT (j1f128)
+MAKE_IFUNC_COMPAT (jnf128)
+MAKE_IFUNC_COMPAT_R (lgammaf128, _r)
+MAKE_IFUNC_COMPAT (log10f128)
+MAKE_IFUNC_COMPAT (log2f128)
+MAKE_IFUNC_COMPAT (logf128)
+MAKE_IFUNC_COMPAT (powf128)
+MAKE_IFUNC_COMPAT (remainderf128)
+MAKE_IFUNC_COMPAT (sinhf128)
+MAKE_IFUNC_COMPAT (sqrtf128)
+MAKE_IFUNC_COMPAT (y0f128)
+MAKE_IFUNC_COMPAT (y1f128)
+MAKE_IFUNC_COMPAT (ynf128)
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.h b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.h
new file mode 100644
index 0000000000..923e095179
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.h
@@ -0,0 +1,183 @@ 
+/* _Float128 ifunc symboling macros.
+   Copyright (C) 2020 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
+   <https://www.gnu.org/licenses/>.  */
+
+/* These cause conflicts when aliasing.  Hide their definitions. */
+#define f32addf64x __hide_f32addf64x
+#define f32subf64x __hide_f32subf64x
+#define f32mulf64x __hide_f32mulf64x
+#define f32divf64x __hide_f32divf64x
+#define f32xaddf64x __hide_f32xaddf64x
+#define f32xsubf64x __hide_f32xsubf64x
+#define f32xmulf64x __hide_f32xmulf64x
+#define f32xdivf64x __hide_f32xdivf64x
+#define f32xaddf128 __hide_f32xaddf128
+#define f32xsubf128 __hide_f32xsubf128
+#define f32xmulf128 __hide_f32xmulf128
+#define f32xdivf128 __hide_f32xdivf128
+#define f32addf64 __hide_f32addf64
+#define f32subf64 __hide_f32subf64
+#define f32mulf64 __hide_f32mulf64
+#define f32divf64 __hide_f32divf64
+#define f64addf64x __hide_f64addf64x
+#define f64subf64x __hide_f64subf64x
+#define f64mulf64x __hide_f64mulf64x
+#define f64divf64x __hide_f64divf64x
+
+/* We want the real prototypes. */
+#include <math/math.h>
+#include <math/complex.h>
+#include <first-versions.h>
+#include <shlib-compat.h>
+#include "init-arch.h"
+
+#undef f32addf64x
+#undef f32subf64x
+#undef f32mulf64x
+#undef f32divf64x
+#undef f32xaddf64x
+#undef f32xsubf64x
+#undef f32xmulf64x
+#undef f32xdivf64x
+#undef f32xaddf128
+#undef f32xsubf128
+#undef f32xmulf128
+#undef f32xdivf128
+#undef f32addf64
+#undef f32subf64
+#undef f32mulf64
+#undef f32divf64
+#undef f64addf64x
+#undef f64subf64x
+#undef f64mulf64x
+#undef f64divf64x
+
+#include <libm-alias-float128.h>
+#include <math-narrow.h>
+
+#define MAKE_IMPL_IFUNC2(func, pfx1, pfx2, r) \
+	extern __typeof (pfx1 ## func ## f128 ## r) pfx2 ## func ## f128_power8 ## r; \
+	extern __typeof (pfx1 ## func ## f128 ## r) pfx2 ## func ## f128_power9 ## r; \
+        _F128_IFUNC2 (__ ## func ## f128, pfx2 ## func ## f128, r);
+
+#define MAKE_IMPL_IFUNC(func, pfx1, r) MAKE_IMPL_IFUNC2(func,pfx1,__,r)
+
+#define _F128_IFUNC2(func, from, r) \
+	libc_ifunc (func ## r, (hwcap2 & PPC_FEATURE2_HAS_IEEE128) \
+                                ? from ## _power9 ## r : from ## _power8 ## r)
+
+#define _F128_IFUNC(func, r) _F128_IFUNC2(func, func, r)
+
+#define _libm_alias_narrow(func, size) \
+	extern __typeof (f ## size ## func ## f128) __f ## size ## func ## f128; \
+	MAKE_IMPL_IFUNC (f ## size ## func,,) \
+	libm_alias_float ## size ## _float128 (func)
+
+#define _libm_alias_float32_float128(func) _libm_alias_narrow (func, 32)
+#define _libm_alias_float64_float128(func) _libm_alias_narrow (func, 64)
+#define _libm_alias_float64x_float128(func) _libm_alias_narrow (func, 64x)
+
+#define MAKE_IFUNCP_WRAP_R(w,func,r) \
+	extern __typeof (func ## f128 ## r) __ ## func ## f128 ## r; \
+	MAKE_IMPL_IFUNC2 (func,__,__ ## w, r) \
+	weak_alias (__ ## func ## f128 ## r, func ## f128 ## r); \
+	libm_alias_float128_other_r (__ ## func, func, r);
+
+#define MAKE_IFUNCP_R(func,r) MAKE_IFUNCP_WRAP_R (,func,r)
+
+
+/* Generic aliasing functions */
+#define DECL_ALIAS(f) MAKE_IFUNCP_R (f,)
+#define DECL_ALIAS_s(f) MAKE_IFUNCP_R (f,)
+#define DECL_ALIAS_w(f) MAKE_IFUNCP_R (f,)
+#define DECL_ALIAS_e(f)
+#define DECL_ALIAS_k(f)
+#define DECL_ALIAS_R_w(f) MAKE_IFUNCP_R (f, _r)
+#define DECL_ALIAS_R_e(f)
+
+/* Handle expanding/narrowing functions specially.  */
+#define DECL_ALIAS_s_f32add(x) _libm_alias_float32_float128 (add)
+#define DECL_ALIAS_s_f64add(x) _libm_alias_float64_float128 (add)
+#define DECL_ALIAS_s_f64xadd(x) _libm_alias_float64x_float128 (add)
+#define DECL_ALIAS_s_f32sub(x) _libm_alias_float32_float128 (sub)
+#define DECL_ALIAS_s_f64sub(x) _libm_alias_float64_float128 (sub)
+#define DECL_ALIAS_s_f64xsub(x) _libm_alias_float64x_float128 (sub)
+#define DECL_ALIAS_s_f32mul(x) _libm_alias_float32_float128 (mul)
+#define DECL_ALIAS_s_f64mul(x) _libm_alias_float64_float128 (mul)
+#define DECL_ALIAS_s_f64xmul(x) _libm_alias_float64x_float128 (mul)
+#define DECL_ALIAS_s_f32div(x) _libm_alias_float32_float128 (div)
+#define DECL_ALIAS_s_f64div(x) _libm_alias_float64_float128 (div)
+#define DECL_ALIAS_s_f64xdiv(x) _libm_alias_float64x_float128 (div)
+
+/* These are fallback support for classification functions.  */
+#define DECL_ALIAS_s_isinf(x) MAKE_IMPL_IFUNC (x, __,)
+#define DECL_ALIAS_s_isnan(x) MAKE_IMPL_IFUNC (x, __,)
+#define DECL_ALIAS_s_issignaling(x) MAKE_IMPL_IFUNC (x, __,)
+#define DECL_ALIAS_s_iseqsig(x) MAKE_IMPL_IFUNC (x, __,)
+#define DECL_ALIAS_s_signbit(x) MAKE_IMPL_IFUNC (x, __,)
+#define DECL_ALIAS_s_finite(x) MAKE_IMPL_IFUNC (x, __,)
+#define DECL_ALIAS_s_fpclassify(x) MAKE_IMPL_IFUNC (x, __,)
+
+/* This doesn't have a public strong implementatation alias.  */
+extern __typeof (canonicalizef128) __canonicalizef128;
+
+/* No symbols in these helper/wrapped objects. */
+#define DECL_ALIAS_lgamma_neg(x)
+#define DECL_ALIAS_lgamma_product(x)
+#define DECL_ALIAS_gamma_product(x)
+#define DECL_ALIAS_x2y2m1(x)
+#define DECL_ALIAS_s_log1p(x)
+#define DECL_ALIAS_s_scalbln(x)
+#define DECL_ALIAS_s_scalbn(x)
+
+/* Ensure the wrapper functions get exposed via IFUNC, not the
+   wrappee (e.g __w_log1pf128_power8 instead of __log1pf128_power8. */
+#define DECL_ALIAS_w_log1p(x) MAKE_IFUNCP_WRAP_R(w_,x,)
+#define DECL_ALIAS_w_scalbln(x) MAKE_IFUNCP_WRAP_R(w_,x,)
+
+/* Expose ldouble only redirected symbols.  */
+#define DECL_LDOUBLE_ALIAS(func, RTYPE, ARGS) \
+	extern RTYPE func ARGS; \
+	extern __typeof (func) func ## _power8; \
+	extern __typeof (func) func ## _power9; \
+	_F128_IFUNC ( func,)
+
+/* These are declared in their respective jX objects.  */
+#define DECL_ALIAS_w_j0(f) MAKE_IFUNCP_R (f,) MAKE_IFUNCP_R (y0,)
+#define DECL_ALIAS_w_j1(f) MAKE_IFUNCP_R (f,) MAKE_IFUNCP_R (y1,)
+#define DECL_ALIAS_w_jn(f) MAKE_IFUNCP_R (f,) MAKE_IFUNCP_R (yn,)
+
+#define DECL_ALIAS_s_erf(f) MAKE_IFUNCP_R (f,) MAKE_IFUNCP_R (erfc,)
+
+/* scalbnf128 is an alias of ldexpf128. */
+#define DECL_ALIAS_s_ldexp(f) MAKE_IFUNCP_R (f,) MAKE_IFUNCP_WRAP_R (wrap_, scalbn,)
+
+/* Handle the special case functions which exist only to support ldouble == ieee128. */
+#define DECL_ALIAS_s_nexttoward(x) \
+	DECL_LDOUBLE_ALIAS (__nexttowardf_to_ieee128, float, (float, _Float128)) \
+	DECL_LDOUBLE_ALIAS (__nexttoward_to_ieee128, double, (double, _Float128))
+
+#define DECL_ALIAS_w_scalb(x) \
+	DECL_LDOUBLE_ALIAS (__scalbf128,_Float128, (_Float128, _Float128)) \
+	libm_alias_exclusive_ldouble (__scalb, scalb)
+
+#define DECL_ALIAS_s_significand(x) \
+	DECL_LDOUBLE_ALIAS (__significandieee128, _Float128, (_Float128))
+
+#define DECL_ALIAS_s_nextafter(f) \
+	MAKE_IFUNCP_R (f,) \
+	libm_alias_exclusive_ldouble (__nextafter, nexttoward)
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128_private.h b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128_private.h
new file mode 100644
index 0000000000..df4fdbf4fd
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128_private.h
@@ -0,0 +1,136 @@ 
+/* _Float128 overrides for float128 in ppc64le multiarch env.
+   Copyright (C) 2020 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _FLOAT128_PRIVATE_PPC64LE
+#define _FLOAT128_PRIVATE_PPC64LE 1
+
+#if IS_IN(libc) || defined(_F128_DISABLE_IFUNC)
+/* multiarch is not supported.  Do nothing and pass through. */
+#include_next <float128_private.h>
+#else
+
+/* Include fenv.h now before turning off PLT bypass tricks.  At
+   minimum fereaiseexcept is used today. */
+#include <fenv.h>
+
+/* Likewise, the PLT bypass trick uses the same trick to rename
+   as we do.  Only one asm-rename is allowed.  Only fenv.h
+   functions require this today, so we include them above.  */
+#undef libm_hidden_def
+#define libm_hidden_def(func)
+#undef libm_hidden_proto
+#define libm_hidden_proto(f)
+#undef hidden_proto
+#define hidden_proto(f)
+
+/* Always disable redirects.  We supply these uniquely later on. */
+#undef NO_MATH_REDIRECT
+#define NO_MATH_REDIRECT
+#include <math.h>
+#undef NO_MATH_REDIRECT
+
+#include_next <float128_private.h>
+
+#include <float128-ifunc-macros.h>
+
+/* Declare these now, as they otherwise are not. */
+extern __typeof (cosf128) __ieee754_cosf128;
+extern __typeof (asinhf128) __ieee754_asinhf128;
+
+F128_REDIR (__ieee754_asinhf128)
+F128_REDIR (__ieee754_cosf128)
+F128_REDIR (__asinhf128)
+F128_REDIR (__atanf128)
+F128_REDIR (__cbrtf128)
+F128_REDIR (__ceilf128)
+F128_REDIR (__copysignf128)
+F128_REDIR (__cosf128)
+F128_REDIR (__erfcf128)
+F128_REDIR (__erff128)
+F128_REDIR (__expf128)
+F128_REDIR (__expm1f128)
+F128_REDIR (__fabsf128)
+F128_REDIR (__fdimf128)
+F128_REDIR (__finitef128)
+F128_REDIR (__floorf128)
+F128_REDIR (__fmaf128)
+F128_REDIR (__fmaxf128)
+F128_REDIR (__fminf128)
+F128_REDIR (__fpclassifyf128)
+F128_REDIR (__frexpf128)
+F128_REDIR (__getpayloadf128)
+F128_REDIR (__isinff128)
+F128_REDIR (__isnanf128)
+F128_REDIR (__ldexpf128)
+F128_REDIR (__llrintf128)
+F128_REDIR (__llroundf128)
+F128_REDIR (__log1pf128)
+F128_REDIR (__logbf128)
+F128_REDIR (__logf128)
+F128_REDIR (__lrintf128)
+F128_REDIR (__lroundf128)
+F128_REDIR (__modff128)
+F128_REDIR (__nearbyintf128)
+F128_REDIR (__nextafterf128)
+F128_REDIR (__nextdownf128)
+F128_REDIR (__nextupf128)
+F128_REDIR (__remquof128)
+F128_REDIR (__rintf128)
+F128_REDIR (__roundevenf128)
+F128_REDIR (__roundf128)
+F128_REDIR (__scalblnf128)
+F128_REDIR (__scalbnf128)
+F128_REDIR (__signbitf128)
+F128_REDIR (__sincosf128)
+F128_REDIR (__sinf128)
+F128_REDIR (__sqrtf128)
+F128_REDIR (__tanhf128)
+F128_REDIR (__tanf128)
+F128_REDIR (__truncf128)
+F128_REDIR (__lgamma_productf128)
+F128_REDIR (__mpn_extract_float128)
+F128_REDIR (__fromfpxf128);
+F128_REDIR (__ufromfpxf128);
+F128_REDIR (__fromfpf128);
+F128_REDIR (__ufromfpf128);
+
+#include <float128-ifunc-redirects-mp.h>
+
+/* Redirect tricks don't work with these, so instead macro-rename.  */
+#define __nexttoward_to_ieee128 F128_SFX_APPEND (__nexttoward_to_ieee128)
+#define __nexttowardf_to_ieee128 F128_SFX_APPEND (__nexttowardf_to_ieee128)
+#define __f32divf128 F128_SFX_APPEND (__f32divf128)
+#define __f32mulf128 F128_SFX_APPEND (__f32mulf128)
+#define __f32addf128 F128_SFX_APPEND (__f32addf128)
+#define __f32subf128 F128_SFX_APPEND (__f32subf128)
+#define __f64divf128 F128_SFX_APPEND (__f64divf128)
+#define __f64mulf128 F128_SFX_APPEND (__f64mulf128)
+#define __f64addf128 F128_SFX_APPEND (__f64addf128)
+#define __f64subf128 F128_SFX_APPEND (__f64subf128)
+#define __f64xdivf128 F128_SFX_APPEND (__f64xdivf128)
+#define __f64xmulf128 F128_SFX_APPEND (__f64xmulf128)
+#define __f64xaddf128 F128_SFX_APPEND (__f64xaddf128)
+#define __f64xsubf128 F128_SFX_APPEND (__f64xsubf128)
+#define __setpayloadf128 F128_SFX_APPEND (__setpayloadf128)
+#define __setpayloadsigf128 F128_SFX_APPEND (__setpayloadsigf128)
+
+#include <float128-ifunc-redirects.h>
+
+#endif /* !(IS_IN(libc) || defined(_F128_DISABLE_IFUNC) */
+
+#endif /* _FLOAT128_PRIVATE_PPC64LE */
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/math-type-macros-float128.h b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/math-type-macros-float128.h
new file mode 100644
index 0000000000..77a35fe5dd
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/math-type-macros-float128.h
@@ -0,0 +1,129 @@ 
+/* _Float128 overrides for float128 in ppc64le multiarch env.
+   Copyright (C) 2020 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _MATH_TYPE_MACROS_FLOAT128_PPC64_MULTI
+#define _MATH_TYPE_MACROS_FLOAT128_PPC64_MULTI 1
+
+#include_next <math-type-macros-float128.h>
+
+#if !IS_IN(libc) && !defined(_F128_DISABLE_IFUNC)
+
+/* Include fenv.h now before turning off PLT bypass.  At
+   minimum fereaiseexcept is used today. */
+#include <fenv.h>
+
+#include <float128-ifunc-macros.h>
+
+#undef NO_MATH_REDIRECT
+#define NO_MATH_REDIRECT
+#include <math.h>
+#undef NO_MATH_REDIRECT
+
+#include <complex.h>
+
+/* This is easier than trying to coerce bits/mathcalls.h */
+#define F128_C_REDIR(f) F128_REDIR (__c ## f ## f128); \
+			F128_REDIR (__ ## f ## f128); \
+
+#define F128_TRIG_REDIR(f) F128_C_REDIR (a ## f); \
+			   F128_C_REDIR (a ## f ## h); \
+			   F128_C_REDIR (f); \
+			   F128_C_REDIR (f ## h);
+
+F128_TRIG_REDIR (cos)
+F128_TRIG_REDIR (sin)
+F128_TRIG_REDIR (tan)
+
+F128_C_REDIR (log);
+F128_C_REDIR (log10);
+F128_C_REDIR (exp);
+F128_C_REDIR (sqrt);
+F128_C_REDIR (pow);
+
+F128_REDIR (__atan2f128)
+F128_REDIR (__kernel_casinhf128);
+F128_REDIR (__rintf128);
+F128_REDIR (__floorf128);
+F128_REDIR (__fabsf128);
+F128_REDIR (__hypotf128);
+extern _Float128 __scalbf128 (_Float128, _Float128);
+F128_REDIR (__scalbf128);
+F128_REDIR (__scalbnf128);
+F128_REDIR (__scalblnf128);
+F128_REDIR (__sincosf128);
+F128_REDIR (__log1pf128);
+F128_REDIR (__ilogbf128);
+F128_REDIR (__nextupf128);
+F128_REDIR (__ldexpf128);
+F128_REDIR (__cargf128);
+F128_REDIR (__cimagf128);
+F128_REDIR (__crealf128);
+F128_REDIR (__conjf128);
+F128_REDIR (__cprojf128);
+F128_REDIR (__cabsf128);
+F128_REDIR (__fdimf128);
+F128_REDIR (__fminf128);
+F128_REDIR (__fmaxf128);
+F128_REDIR (__fmodf128);
+F128_REDIR (__fmaxmagf128);
+F128_REDIR (__fminmagf128);
+F128_REDIR (__nanf128);
+F128_REDIR (__nextupf128);
+F128_REDIR (__nextdownf128);
+F128_REDIR (__llogbf128);
+F128_REDIR (__log2f128);
+F128_REDIR (__exp10f128);
+F128_REDIR (__exp2f128);
+F128_REDIR (__j0f128);
+F128_REDIR (__j1f128);
+F128_REDIR (__jnf128);
+F128_REDIR (__y0f128);
+F128_REDIR (__y1f128);
+F128_REDIR (__ynf128);
+F128_REDIR (__lgammaf128);
+F128_REDIR_R (__lgammaf128, _r);
+F128_REDIR (__tgammaf128);
+F128_REDIR (__remainderf128);
+F128_REDIR (__iseqsigf128);
+
+/* Assist creative renaming of various templates. */
+extern _Float128 __wrap_scalbnf128 (_Float128, int);
+extern _Float128 __w_scalblnf128 (_Float128, long int);
+extern _Float128 __w_log1pf128 (_Float128);
+F128_REDIR (__wrap_scalbnf128);
+F128_REDIR (__w_scalblnf128);
+F128_REDIR (__w_log1pf128);
+extern __typeof (canonicalizef128) __canonicalizef128;
+F128_REDIR (__canonicalizef128);
+
+/* Ensure significandf128 gets renamed appropriately */
+extern _Float128 __significandieee128 (_Float128);
+F128_REDIR (__significandieee128);
+
+/* This is hack.  The build directory is favored over the sysdep directorys.
+   This causes the generated generic version of s_significandf128.c to build.
+   The only effective difference is the C symbol name.  Workaround this special
+   case by redirecting the symbol name emitted from the template.  */
+extern _Float128 __significandf128 (_Float128) asm ("__significandieee128_power9");
+
+/* Apply redirects for multiarch build. */
+#include <float128-ifunc-redirects.h>
+
+#endif /* !IS_IN(libc) && !defined(_F128_DISABLE_IFUNC) */
+
+#endif /*_MATH_TYPE_MACROS_FLOAT128_PPC64_MULTI */
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/math_private.h b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/math_private.h
new file mode 100644
index 0000000000..342efc0fb8
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/math_private.h
@@ -0,0 +1,14 @@ 
+#ifndef MATH_PRIVATE_PPC64LE_MA
+#define MATH_PRIVATE_PPC64LE_MA 1
+
+#include_next <math_private.h>
+
+#if !defined (_F128_DISABLE_IFUNC)
+
+/* math_private.h redeclares many float128_private.h renamed functions, but
+   we can't inclue float128_private.h here without causing more trouble.  */
+#include <float128-ifunc-redirects-mp.h>
+
+#endif
+
+#endif /* MATH_PRIVATE_PPC64LE_MA */
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128-power9.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128-power9.c
deleted file mode 100644
index 98d4107429..0000000000
--- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128-power9.c
+++ /dev/null
@@ -1,26 +0,0 @@ 
-/* __fmaf128() PowerPC64LE POWER9 version.
-   Copyright (C) 2020 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 <libm-alias-float128.h>
-
-#undef libm_alias_float128
-#define libm_alias_float128(a, b)
-
-#define __fmaf128 __fmaf128_power9
-
-#include <sysdeps/powerpc/powerpc64/le/fpu/s_fmaf128.c>
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128-ppc64.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128-ppc64.c
deleted file mode 100644
index 405e287ff3..0000000000
--- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128-ppc64.c
+++ /dev/null
@@ -1,26 +0,0 @@ 
-/* __fmaf128() PowerPC64LE version.
-   Copyright (C) 2020 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/>.  */
-
-#undef weak_alias
-#define weak_alias(a, b)
-#undef strong_alias
-#define strong_alias(a, b)
-
-#define __fmaf128 __fmaf128_ppc64
-
-#include <sysdeps/powerpc/powerpc64/le/fpu/s_fmaf128.c>
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128.c
deleted file mode 100644
index 3a370950f9..0000000000
--- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128.c
+++ /dev/null
@@ -1,36 +0,0 @@ 
-/* Multiple versions of fmaf128.
-   Copyright (C) 2020 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 <libm-alias-float128.h>
-
-#define fmaf128 __redirect_fmaf128
-#include <math.h>
-#undef fmaf128
-
-#include <math_ldbl_opt.h>
-#include "init-arch.h"
-
-extern __typeof (__redirect_fmaf128) __fmaf128_ppc64 attribute_hidden;
-extern __typeof (__redirect_fmaf128) __fmaf128_power9 attribute_hidden;
-
-libc_ifunc_redirected (__redirect_fmaf128, __fmaf128,
-		       (hwcap2 & PPC_FEATURE2_HAS_IEEE128)
-		       ? __fmaf128_power9
-		       : __fmaf128_ppc64);
-
-libm_alias_float128 (__fma, fma)
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-power9.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-power9.c
deleted file mode 100644
index e7414f4a59..0000000000
--- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-power9.c
+++ /dev/null
@@ -1,35 +0,0 @@ 
-/* POWER9 sqrt for _Float128
-   Copyright (C) 2018-2020 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.
-
-   In addition to the permissions in the GNU Lesser General Public
-   License, the Free Software Foundation gives you unlimited
-   permission to link the compiled version of this file into
-   combinations with other programs, and to distribute those
-   combinations without any restriction coming from the use of this
-   file.  (The Lesser General Public License restrictions do apply in
-   other respects; for example, they cover modification of the file,
-   and distribution when not linked into a combine executable.)
-
-   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
-   <https://www.gnu.org/licenses/>.  */
-
-#include <math-type-macros-float128.h>
-
-#define __sqrtf128 __sqrtf128_power9
-
-#undef declare_mgen_alias
-#define declare_mgen_alias(a, b)
-
-#include <w_sqrt_template.c>
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-ppc64le.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-ppc64le.c
deleted file mode 100644
index e03ecb193f..0000000000
--- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-ppc64le.c
+++ /dev/null
@@ -1,35 +0,0 @@ 
-/* PPC64LE sqrt for _Float128
-   Copyright (C) 2018-2020 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.
-
-   In addition to the permissions in the GNU Lesser General Public
-   License, the Free Software Foundation gives you unlimited
-   permission to link the compiled version of this file into
-   combinations with other programs, and to distribute those
-   combinations without any restriction coming from the use of this
-   file.  (The Lesser General Public License restrictions do apply in
-   other respects; for example, they cover modification of the file,
-   and distribution when not linked into a combine executable.)
-
-   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
-   <https://www.gnu.org/licenses/>.  */
-
-#include <math-type-macros-float128.h>
-
-#define __sqrtf128 __sqrtf128_ppc64le
-
-#undef declare_mgen_alias
-#define declare_mgen_alias(a, b)
-
-#include <w_sqrt_template.c>
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128.c
deleted file mode 100644
index e2db0a2864..0000000000
--- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128.c
+++ /dev/null
@@ -1,31 +0,0 @@ 
-/* Multiple versions of __sqrtf128.
-   Copyright (C) 2018-2020 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
-   <https://www.gnu.org/licenses/>.  */
-
-#define NO_MATH_REDIRECT
-#include <math.h>
-#include "init-arch.h"
-#include <math-type-macros-float128.h>
-
-extern __typeof (__sqrtf128) __sqrtf128_ppc64le attribute_hidden;
-extern __typeof (__sqrtf128) __sqrtf128_power9 attribute_hidden;
-
-libc_ifunc (__sqrtf128,
-	    (hwcap2 & PPC_FEATURE2_ARCH_3_00)
-	    ? __sqrtf128_power9
-	    : __sqrtf128_ppc64le);
-declare_mgen_alias (__sqrt, sqrt)