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[glibc] powerpc: copysign cleanup


https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e41d66e41ae0626156b3eace8e15aecff3044695

commit e41d66e41ae0626156b3eace8e15aecff3044695
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Fri Mar 8 16:55:52 2019 +0000

    powerpc: copysign cleanup
    
    GCC always expand copysign{f} for all possible cpus, so calling the libm
    is only done if user explicitly states to disable the builtin (which is
    done usually not for performance reason).  So to provide ifunc variant
    for copysign is just unrequired complexity, since libm will be called
    on non-performance critical code.
    
    This patch removes both powerpc32 and powerpc64 ifunc variants and
    consolidates the powerpc implementation on
    sysdeps/powerpc/fpu/s_copysign{f}.c using compiler builtins.
    
    Checked on powerpc-linux-gnu (built without --with-cpu, with
    --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch),
    powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+
    and --disable-multi-arch).
    
    	* sysdeps/powerpc/fpu/s_copysign.c: New file.
    	* sysdeps/powerpc/fpu/s_copysignf.c: Likewise.
    	* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Remove file.
    	* sysdeps/powerpc/powerpc32/fpu/s_copysignf.S: Likewise.
    	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
    	(sysdep_routines, libm-sysdep_routines): Remove s_copysign-power6 and
    	s_copysign-ppc32.
    	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-power6.S:
    	Remove file.
    	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-ppc32.S:
    	Likewise.
    	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign.c:
    	Likewise.
    	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysignf.c:
    	Likewise.
    	* sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S: Likewise.
    	* sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S: Likewise.
    	* sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (sysdeps_calls):
    	Remove s_copysign-power6 s_copysign-ppc64.
    	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S:
    	Remove file.
    	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S:
    	Likewise.
    	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c: Likewise.
    	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c: Likewise.
    	* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Likewise.
    	* sysdeps/powerpc/powerpc64/fpu/s_copysignf.S: Likewise.
    	* sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S: Likewise.
    	* sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S: Likewise.
    
    Reviewed-by: Gabriel F. T. Gomes <gabrielftg@linux.ibm.com>

Diff:
---
 ChangeLog                                          | 30 ++++++++++++
 sysdeps/powerpc/fpu/s_copysign.c                   | 32 +++++++++++++
 sysdeps/powerpc/fpu/s_copysignf.c                  | 28 ++++++++++++
 sysdeps/powerpc/powerpc32/fpu/s_copysign.S         | 53 ----------------------
 sysdeps/powerpc/powerpc32/fpu/s_copysignf.S        |  1 -
 .../powerpc32/power4/fpu/multiarch/Makefile        |  6 +--
 .../power4/fpu/multiarch/s_copysign-power6.S       | 33 --------------
 .../power4/fpu/multiarch/s_copysign-ppc32.S        | 34 --------------
 .../powerpc32/power4/fpu/multiarch/s_copysign.c    | 45 ------------------
 .../powerpc32/power4/fpu/multiarch/s_copysignf.c   | 34 --------------
 sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S  | 49 --------------------
 sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S |  1 -
 sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile   |  3 +-
 .../powerpc64/fpu/multiarch/s_copysign-power6.S    | 32 -------------
 .../powerpc64/fpu/multiarch/s_copysign-ppc64.S     | 34 --------------
 .../powerpc/powerpc64/fpu/multiarch/s_copysign.c   | 45 ------------------
 .../powerpc/powerpc64/fpu/multiarch/s_copysignf.c  | 34 --------------
 sysdeps/powerpc/powerpc64/fpu/s_copysign.S         | 53 ----------------------
 sysdeps/powerpc/powerpc64/fpu/s_copysignf.S        |  1 -
 sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S  | 49 --------------------
 sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S |  1 -
 21 files changed, 94 insertions(+), 504 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 840c28c..13f0273 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,35 @@
 2019-06-12  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
+	* sysdeps/powerpc/fpu/s_copysign.c: New file.
+	* sysdeps/powerpc/fpu/s_copysignf.c: Likewise.
+	* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Remove file.
+	* sysdeps/powerpc/powerpc32/fpu/s_copysignf.S: Likewise.
+	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
+	(sysdep_routines, libm-sysdep_routines): Remove s_copysign-power6 and
+	s_copysign-ppc32.
+	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-power6.S:
+	Remove file.
+	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-ppc32.S:
+	Likewise.
+	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign.c:
+	Likewise.
+	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysignf.c:
+	Likewise.
+	* sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S: Likewise.
+	* sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S: Likewise.
+	* sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (sysdeps_calls):
+	Remove s_copysign-power6 s_copysign-ppc64.
+	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S:
+	Remove file.
+	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S:
+	Likewise.
+	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c: Likewise.
+	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c: Likewise.
+	* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Likewise.
+	* sysdeps/powerpc/powerpc64/fpu/s_copysignf.S: Likewise.
+	* sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S: Likewise.
+	* sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S: Likewise.
+
 	* sysdeps/powerpc/fpu/round_to_integer.h (set_fenv_mode,
 	round_to_integer_float, round_mode): Add RINT handling.
 	(reset_fenv_mode): New symbol.
diff --git a/sysdeps/powerpc/fpu/s_copysign.c b/sysdeps/powerpc/fpu/s_copysign.c
new file mode 100644
index 0000000..364242e
--- /dev/null
+++ b/sysdeps/powerpc/fpu/s_copysign.c
@@ -0,0 +1,32 @@
+/* Copy sign of a number.  PowerPC version.
+   Copyright (C) 2019 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#define NO_MATH_REDIRECT
+#include <math.h>
+#include <math_ldbl_opt.h>
+#include <libm-alias-double.h>
+
+double
+__copysign (double x, double y)
+{
+  return __builtin_copysign (x, y);
+}
+libm_alias_double (__copysign, copysign)
+#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
+compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
+#endif
diff --git a/sysdeps/powerpc/fpu/s_copysignf.c b/sysdeps/powerpc/fpu/s_copysignf.c
new file mode 100644
index 0000000..de787ae
--- /dev/null
+++ b/sysdeps/powerpc/fpu/s_copysignf.c
@@ -0,0 +1,28 @@
+/* Copy sign of a number.  PowerPC version.
+   Copyright (C) 2019 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#define NO_MATH_REDIRECT
+#include <math.h>
+#include <libm-alias-float.h>
+
+float
+__copysignf (float x, float y)
+{
+  return __builtin_copysignf (x, y);
+}
+libm_alias_float (__copysign, copysign)
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_copysign.S b/sysdeps/powerpc/powerpc32/fpu/s_copysign.S
deleted file mode 100644
index fa9e5a2..0000000
--- a/sysdeps/powerpc/powerpc32/fpu/s_copysign.S
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Copy a sign bit between floating-point values.
-   Copyright (C) 1997-2019 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/>.  */
-
-/* This has been coded in assembler because GCC makes such a mess of it
-   when it's coded in C.  */
-
-#include <sysdep.h>
-#include <math_ldbl_opt.h>
-#include <libm-alias-float.h>
-#include <libm-alias-double.h>
-
-ENTRY(__copysign)
-/* double [f1] copysign (double [f1] x, double [f2] y);
-   copysign(x,y) returns a value with the magnitude of x and
-   with the sign bit of y.  */
-	stwu	r1,-16(r1)
-	cfi_adjust_cfa_offset (16)
-	stfd	fp2,8(r1)
-	lwz	r3,8+HIWORD(r1)
-	cmpwi   r3,0
-	addi    r1,r1,16
-	cfi_adjust_cfa_offset (-16)
-	blt     L(0)
-	fabs    fp1,fp1
-	blr
-L(0):	fnabs   fp1,fp1
-	blr
-	END (__copysign)
-
-libm_alias_double (__copysign, copysign)
-
-/* It turns out that it's safe to use this code even for single-precision.  */
-strong_alias(__copysign,__copysignf)
-libm_alias_float (__copysign, copysign)
-
-#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
-compat_symbol (libc, __copysign, copysignl, GLIBC_2_0)
-#endif
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_copysignf.S b/sysdeps/powerpc/powerpc32/fpu/s_copysignf.S
deleted file mode 100644
index e05438a..0000000
--- a/sysdeps/powerpc/powerpc32/fpu/s_copysignf.S
+++ /dev/null
@@ -1 +0,0 @@
-/* __copysignf is in s_copysign.S  */
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
index cf38e34..7008e77 100644
--- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
@@ -2,8 +2,8 @@ ifeq ($(subdir),math)
 sysdep_routines += s_isnan-power7 s_isnan-power6 s_isnan-power5 s_isnan-ppc32 \
 		   s_isnanf-power6 s_isnanf-power5 s_isinf-power7 \
 		   s_isinf-ppc32 s_isinff-ppc32 s_finite-power7 \
-		   s_finite-ppc32 s_finitef-ppc32 s_copysign-power6 \
-		   s_copysign-ppc32 s_modf-power5+ s_modf-ppc32 \
+		   s_finite-ppc32 s_finitef-ppc32 \
+		   s_modf-power5+ s_modf-ppc32 \
 		   s_modff-power5+ s_modff-ppc32
 
 libm-sysdep_routines += s_llrintf-power6 s_llrintf-ppc32 s_llrint-power6 \
@@ -18,7 +18,7 @@ libm-sysdep_routines += s_llrintf-power6 s_llrintf-ppc32 s_llrint-power6 \
 			s_floorf-ppc32 s_round-power5+ s_round-ppc32 \
 			s_roundf-power5+ s_roundf-ppc32 s_trunc-power5+ \
 			s_trunc-ppc32 s_truncf-power5+ s_truncf-ppc32 \
-			s_copysign-power6 s_copysign-ppc32 s_lround-power6x \
+			s_lround-power6x \
 			s_lround-power5+ s_lround-ppc32 s_lrint-power6x \
 			s_lrint-ppc32 s_modf-power5+ s_modf-ppc32 \
 			s_modff-power5+ s_modff-ppc32 s_logbl-power7 \
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-power6.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-power6.S
deleted file mode 100644
index 24ab12e..0000000
--- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-power6.S
+++ /dev/null
@@ -1,33 +0,0 @@
-/* copysign().  PowerPC32/POWER6 version.
-   Copyright (C) 2013-2019 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <sysdep.h>
-#include <math_ldbl_opt.h>
-
-#undef hidden_def
-#define hidden_def(name)
-#undef weak_alias
-#define weak_alias(name, alias)
-#undef strong_alias
-#define strong_alias(name, alias)
-#undef compat_symbol
-#define compat_symbol(lib, name, alias, ver)
-
-#define __copysign __copysign_power6
-
-#include <sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-ppc32.S b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-ppc32.S
deleted file mode 100644
index 0c283c6..0000000
--- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-ppc32.S
+++ /dev/null
@@ -1,34 +0,0 @@
-/* copysign().  PowerPC32 default version.
-   Copyright (C) 2013-2019 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 __copysign __copysign_ppc32
-#undef hidden_def
-#define hidden_def(name)
-  strong_alias (__copysign_ppc32, __GI___copysign)
-
-#include <sysdeps/powerpc/powerpc32/fpu/s_copysign.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign.c
deleted file mode 100644
index f9d1795..0000000
--- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/* Multiple versions of copysign.
-   Copyright (C) 2013-2019 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 NO_MATH_REDIRECT
-/* Redefine copysign so that the compiler won't complain about the type
-   mismatch with the IFUNC selector in strong_alias below.  */
-#undef __copysign
-#define __copysign __redirect_copysign
-#include <math.h>
-#include <math_ldbl_opt.h>
-#undef __copysign
-#include <shlib-compat.h>
-#include "init-arch.h"
-#include <libm-alias-double.h>
-
-extern __typeof (__redirect_copysign) __copysign_ppc32 attribute_hidden;
-extern __typeof (__redirect_copysign) __copysign_power6 attribute_hidden;
-
-extern __typeof (__redirect_copysign) __libm_copysign;
-libc_ifunc (__libm_copysign,
-	    (hwcap & PPC_FEATURE_ARCH_2_05)
-	    ? __copysign_power6
-            : __copysign_ppc32);
-
-strong_alias (__libm_copysign, __copysign)
-libm_alias_double (__copysign, copysign)
-
-#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
-compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
-#endif
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysignf.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysignf.c
deleted file mode 100644
index 12354d0..0000000
--- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysignf.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* Multiple versions of copysignf.
-   Copyright (C) 2013-2019 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 NO_MATH_REDIRECT
-#include <math.h>
-#include <shlib-compat.h>
-#include "init-arch.h"
-#include <libm-alias-float.h>
-
-/* It's safe to use double-precision implementation for single-precision.  */
-extern __typeof (__copysignf) __copysign_ppc32 attribute_hidden;
-extern __typeof (__copysignf) __copysign_power6 attribute_hidden;
-
-libc_ifunc (__copysignf,
-	    (hwcap & PPC_FEATURE_ARCH_2_05)
-	    ? __copysign_power6
-            : __copysign_ppc32);
-
-libm_alias_float (__copysign, copysign)
diff --git a/sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S b/sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S
deleted file mode 100644
index abf84ca..0000000
--- a/sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S
+++ /dev/null
@@ -1,49 +0,0 @@
-/* copysign().  PowerPC32/POWER6 version.
-   Copyright (C) 2010-2019 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
-   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>
-#include <libm-alias-float.h>
-#include <libm-alias-double.h>
-
-/* double [f1] copysign (double [f1] x, double [f2] y);
-   copysign(x,y) returns a value with the magnitude of x and
-   with the sign bit of y.  */
-
-	.section    ".text"
-	.type	    __copysign, @function
-	.machine    power6
-EALIGN (__copysign, 4, 0)
-	CALL_MCOUNT
-	fcpsgn	fp1,fp2,fp1
-	blr
-END (__copysign)
-
-hidden_def (__copysign)
-libm_alias_double (__copysign, copysign)
-
-/* It turns out that the 'double' version will also always work for
-   single-precision.  */
-strong_alias (__copysign, __copysignf)
-hidden_def (__copysignf)
-libm_alias_float (__copysign, copysign)
-
-#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
-compat_symbol (libc, copysign, copysignl, GLIBC_2_0);
-#endif
diff --git a/sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S b/sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S
deleted file mode 100644
index d4aa702..0000000
--- a/sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S
+++ /dev/null
@@ -1 +0,0 @@
-/* This function uses the same code as s_copysign.S.  */
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
index 7d469d7..36d5e65 100644
--- a/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
@@ -2,8 +2,7 @@ ifeq ($(subdir),math)
 # These functions are built both for libc and libm because they're required
 # by printf.  While the libc objects have the prefix s_, the libm ones are
 # prefixed with  m_.
-sysdep_calls := s_copysign-power6 s_copysign-ppc64 \
-		s_finite-power8 s_finite-power7 s_finite-ppc64 \
+sysdep_calls := s_finite-power8 s_finite-power7 s_finite-ppc64 \
 		s_finitef-ppc64 \
 		s_isinf-power8 s_isinf-ppc64 \
 		s_isinff-ppc64 s_isinf-power7 \
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S
deleted file mode 100644
index e901cea..0000000
--- a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S
+++ /dev/null
@@ -1,32 +0,0 @@
-/* copysign().  PowerPC64 default version.
-   Copyright (C) 2013-2019 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 <shlib-compat.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)
-#undef hidden_def
-#define hidden_def(name)
-
-#define __copysign __copysign_power6
-
-#include <sysdeps/powerpc/powerpc64/fpu/s_copysign.S>
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S
deleted file mode 100644
index a4a783f..0000000
--- a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S
+++ /dev/null
@@ -1,34 +0,0 @@
-/* copysign().  PowerPC64 default version.
-   Copyright (C) 2010-2019 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
-   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 <shlib-compat.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 __copysign __copysign_ppc64
-#undef hidden_def
-#define hidden_def(name)				\
-  strong_alias (__copysign_ppc64, __GI___copysign)
-
-#include <sysdeps/powerpc/powerpc64/fpu/s_copysign.S>
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c
deleted file mode 100644
index 3d7f7f0..0000000
--- a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/* Multiple versions of copysign.
-   Copyright (C) 2013-2019 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 NO_MATH_REDIRECT
-/* Redefine copysign so that the compiler won't complain about the type
-   mismatch with the IFUNC selector in strong_alias below.  */
-#undef __copysign
-#define __copysign __redirect_copysign
-#include <math.h>
-#include <math_ldbl_opt.h>
-#undef __copysign
-#include <shlib-compat.h>
-#include "init-arch.h"
-#include <libm-alias-double.h>
-
-extern __typeof (__redirect_copysign) __copysign_ppc64 attribute_hidden;
-extern __typeof (__redirect_copysign) __copysign_power6 attribute_hidden;
-
-extern __typeof (__redirect_copysign) __libm_copysign;
-libc_ifunc (__libm_copysign,
-	    (hwcap & PPC_FEATURE_ARCH_2_05)
-	    ? __copysign_power6
-            : __copysign_ppc64);
-
-strong_alias (__libm_copysign, __copysign)
-libm_alias_double (__copysign, copysign)
-
-#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
-compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
-#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c
deleted file mode 100644
index d20984b..0000000
--- a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* Multiple versions of copysignf.
-   Copyright (C) 2013-2019 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 NO_MATH_REDIRECT
-#include <math.h>
-#include <shlib-compat.h>
-#include "init-arch.h"
-#include <libm-alias-float.h>
-
-/* It's safe to use double-precision implementation for single-precision. */
-extern __typeof (__copysignf) __copysign_ppc64 attribute_hidden;
-extern __typeof (__copysignf) __copysign_power6 attribute_hidden;
-
-libc_ifunc (__copysignf,
-	    (hwcap & PPC_FEATURE_ARCH_2_05)
-	    ? __copysign_power6
-            : __copysign_ppc64);
-
-libm_alias_float (__copysign, copysign)
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_copysign.S b/sysdeps/powerpc/powerpc64/fpu/s_copysign.S
deleted file mode 100644
index bf62833..0000000
--- a/sysdeps/powerpc/powerpc64/fpu/s_copysign.S
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Copy a sign bit between floating-point values.  PowerPC64 version.
-   Copyright (C) 1997-2019 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/>.  */
-
-/* This has been coded in assembler because GCC makes such a mess of it
-   when it's coded in C.  */
-
-#include <sysdep.h>
-#include <math_ldbl_opt.h>
-#include <libm-alias-float.h>
-#include <libm-alias-double.h>
-
-ENTRY_TOCLESS (__copysign)
-	CALL_MCOUNT 0
-/* double [f1] copysign (double [f1] x, double [f2] y);
-   copysign(x,y) returns a value with the magnitude of x and
-   with the sign bit of y.  */
-	stfd	fp2,-8(r1)
-	nop
-	nop
-	nop
-	ld	r3,-8(r1)
-	cmpdi   r3,0
-	blt     L(0)
-	fabs    fp1,fp1
-	blr
-L(0):	fnabs   fp1,fp1
-	blr
-	END (__copysign)
-
-libm_alias_double (__copysign, copysign)
-
-/* It turns out that it's safe to use this code even for single-precision.  */
-strong_alias(__copysign,__copysignf)
-libm_alias_float (__copysign, copysign)
-
-#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
-compat_symbol (libc, __copysign, copysignl, GLIBC_2_0)
-#endif
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_copysignf.S b/sysdeps/powerpc/powerpc64/fpu/s_copysignf.S
deleted file mode 100644
index e05438a..0000000
--- a/sysdeps/powerpc/powerpc64/fpu/s_copysignf.S
+++ /dev/null
@@ -1 +0,0 @@
-/* __copysignf is in s_copysign.S  */
diff --git a/sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S b/sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S
deleted file mode 100644
index feba531..0000000
--- a/sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S
+++ /dev/null
@@ -1,49 +0,0 @@
-/* copysign().  PowerPC64/POWER6 version.
-   Copyright (C) 2010-2019 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
-   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>
-#include <libm-alias-float.h>
-#include <libm-alias-double.h>
-
-/* double [f1] copysign (double [f1] x, double [f2] y);
-   copysign(x,y) returns a value with the magnitude of x and
-   with the sign bit of y.  */
-
-	.section    ".text"
-	.type	    __copysign, @function
-	.machine    power6
-ENTRY_TOCLESS (__copysign, 4)
-	CALL_MCOUNT 0
-	fcpsgn	fp1,fp2,fp1
-	blr
-END (__copysign)
-
-hidden_def (__copysign)
-libm_alias_double (__copysign, copysign)
-
-/* It turns out that the 'double' version will also always work for
-   single-precision.  */
-strong_alias (__copysign, __copysignf)
-hidden_def (__copysignf)
-libm_alias_float (__copysign, copysign)
-
-#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
-compat_symbol (libc, copysign, copysignl, GLIBC_2_0);
-#endif
diff --git a/sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S b/sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S
deleted file mode 100644
index d4aa702..0000000
--- a/sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S
+++ /dev/null
@@ -1 +0,0 @@
-/* This function uses the same code as s_copysign.S.  */


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