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Use ceil functions not __ceil functions in glibc libm [committed]

From: Joseph Myers <joseph at codesourcery dot com>
To: <libc-alpha at sourceware dot org>
Date: Mon, 17 Sep 2018 20:43:13 +0000
Subject: Use ceil functions not __ceil functions in glibc libm [committed]
Continuing the move to use, within libm, public names for libm
functions that can be inlined as built-in functions on many
architectures, this patch moves calls to __ceil functions to call the
corresponding ceil names instead, with asm redirection to __ceil when
the calls are not inlined.

Tested for x86_64, and with build-many-glibcs.py.  Committed.

2018-09-17  Joseph Myers  <joseph@codesourcery.com>

	* include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ &&
	__FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (ceil): Redirect
	using MATH_REDIRECT.
	* sysdeps/aarch64/fpu/s_ceil.c: Define NO_MATH_REDIRECT before
	header inclusion.
	* sysdeps/aarch64/fpu/s_ceilf.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_ceil.c: Likewise.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c: Likewise.
	* sysdeps/ieee754/float128/s_ceilf128.c: Likewise.
	* sysdeps/ieee754/flt-32/s_ceilf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_ceill.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_ceill.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_ceil_template.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf.c: Likewise.
	* sysdeps/riscv/rv64/rvd/s_ceil.c: Likewise.
	* sysdeps/riscv/rvf/s_ceilf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_ceil.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_ceil.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_ceilf.c: Likewise.
	* sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__ceil):
	Remove macro.
	* sysdeps/ieee754/dbl-64/e_gamma_r.c (gamma_positive): Use ceil
	functions instead of __ceil variants.
	* sysdeps/ieee754/flt-32/e_gammaf_r.c (gammaf_positive): Likewise.
	* sysdeps/ieee754/ldbl-128/e_gammal_r.c (gammal_positive):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (gammal_positive):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_truncl.c (__truncl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_gammal_r.c (gammal_positive):
	Likewise.
	* sysdeps/powerpc/power5+/fpu/s_modf.c (__modf): Likewise.
	* sysdeps/powerpc/power5+/fpu/s_modff.c (__modff): Likewise.

diff --git a/include/math.h b/include/math.h
index f93ecaf6e6..e96f971257 100644
--- a/include/math.h
+++ b/include/math.h
@@ -101,6 +101,7 @@ fabsf128 (_Float128 x)
 #   endif
 #   define MATH_REDIRECT_UNARY_ARGS(TYPE) TYPE
 MATH_REDIRECT (sqrt, "__ieee754_", MATH_REDIRECT_UNARY_ARGS)
+MATH_REDIRECT (ceil, "__", MATH_REDIRECT_UNARY_ARGS)
 MATH_REDIRECT (floor, "__", MATH_REDIRECT_UNARY_ARGS)
 MATH_REDIRECT (rint, "__", MATH_REDIRECT_UNARY_ARGS)
 #  endif
diff --git a/sysdeps/aarch64/fpu/s_ceil.c b/sysdeps/aarch64/fpu/s_ceil.c
index 4e3b5fdc4d..b374da5b2f 100644
--- a/sysdeps/aarch64/fpu/s_ceil.c
+++ b/sysdeps/aarch64/fpu/s_ceil.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <libm-alias-double.h>
 
diff --git a/sysdeps/aarch64/fpu/s_ceilf.c b/sysdeps/aarch64/fpu/s_ceilf.c
index d01dadc246..417395440e 100644
--- a/sysdeps/aarch64/fpu/s_ceilf.c
+++ b/sysdeps/aarch64/fpu/s_ceilf.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <libm-alias-float.h>
 
diff --git a/sysdeps/ieee754/dbl-64/e_gamma_r.c b/sysdeps/ieee754/dbl-64/e_gamma_r.c
index 9f7af6f0c9..823ffdbced 100644
--- a/sysdeps/ieee754/dbl-64/e_gamma_r.c
+++ b/sysdeps/ieee754/dbl-64/e_gamma_r.c
@@ -61,7 +61,7 @@ gamma_positive (double x, int *exp2_adj)
     {
       /* Adjust into the range for using exp (lgamma).  */
       *exp2_adj = 0;
-      double n = __ceil (x - 1.5);
+      double n = ceil (x - 1.5);
       double x_adj = x - n;
       double eps;
       double prod = __gamma_product (x_adj, 0, n, &eps);
@@ -78,7 +78,7 @@ gamma_positive (double x, int *exp2_adj)
 	{
 	  /* Adjust into the range for applying Stirling's
 	     approximation.  */
-	  double n = __ceil (12.0 - x);
+	  double n = ceil (12.0 - x);
 	  x_adj = math_narrow_eval (x + n);
 	  x_eps = (x - (x_adj - n));
 	  prod = __gamma_product (x_adj - n, x_eps, n, &eps);
diff --git a/sysdeps/ieee754/dbl-64/s_ceil.c b/sysdeps/ieee754/dbl-64/s_ceil.c
index 5a7434c737..4c96286c69 100644
--- a/sysdeps/ieee754/dbl-64/s_ceil.c
+++ b/sysdeps/ieee754/dbl-64/s_ceil.c
@@ -17,6 +17,7 @@
  *	Bit twiddling.
  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <math_private.h>
 #include <libm-alias-double.h>
diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c
index b99829d2b0..4bb93d0633 100644
--- a/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c
+++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c
@@ -17,6 +17,7 @@
  *	Bit twiddling.
  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <math_private.h>
 #include <libm-alias-double.h>
diff --git a/sysdeps/ieee754/float128/s_ceilf128.c b/sysdeps/ieee754/float128/s_ceilf128.c
index 0af15f5f03..34949ac98f 100644
--- a/sysdeps/ieee754/float128/s_ceilf128.c
+++ b/sysdeps/ieee754/float128/s_ceilf128.c
@@ -1,2 +1,3 @@
+#define NO_MATH_REDIRECT
 #include <float128_private.h>
 #include "../ldbl-128/s_ceill.c"
diff --git a/sysdeps/ieee754/flt-32/e_gammaf_r.c b/sysdeps/ieee754/flt-32/e_gammaf_r.c
index 28da9c46d2..68f8f44c65 100644
--- a/sysdeps/ieee754/flt-32/e_gammaf_r.c
+++ b/sysdeps/ieee754/flt-32/e_gammaf_r.c
@@ -71,7 +71,7 @@ gammaf_positive (float x, int *exp2_adj)
 	{
 	  /* Adjust into the range for applying Stirling's
 	     approximation.  */
-	  float n = __ceilf (4.0f - x);
+	  float n = ceilf (4.0f - x);
 	  x_adj = math_narrow_eval (x + n);
 	  x_eps = (x - (x_adj - n));
 	  prod = __gamma_productf (x_adj - n, x_eps, n, &eps);
diff --git a/sysdeps/ieee754/flt-32/s_ceilf.c b/sysdeps/ieee754/flt-32/s_ceilf.c
index f289ec2341..25cba0807c 100644
--- a/sysdeps/ieee754/flt-32/s_ceilf.c
+++ b/sysdeps/ieee754/flt-32/s_ceilf.c
@@ -13,6 +13,7 @@
  * ====================================================
  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <math_private.h>
 #include <libm-alias-float.h>
diff --git a/sysdeps/ieee754/ldbl-128/e_gammal_r.c b/sysdeps/ieee754/ldbl-128/e_gammal_r.c
index 9fd0dc046d..f620463ef9 100644
--- a/sysdeps/ieee754/ldbl-128/e_gammal_r.c
+++ b/sysdeps/ieee754/ldbl-128/e_gammal_r.c
@@ -69,7 +69,7 @@ gammal_positive (_Float128 x, int *exp2_adj)
     {
       /* Adjust into the range for using exp (lgamma).  */
       *exp2_adj = 0;
-      _Float128 n = __ceill (x - L(1.5));
+      _Float128 n = ceill (x - L(1.5));
       _Float128 x_adj = x - n;
       _Float128 eps;
       _Float128 prod = __gamma_productl (x_adj, 0, n, &eps);
@@ -86,7 +86,7 @@ gammal_positive (_Float128 x, int *exp2_adj)
 	{
 	  /* Adjust into the range for applying Stirling's
 	     approximation.  */
-	  _Float128 n = __ceill (24 - x);
+	  _Float128 n = ceill (24 - x);
 	  x_adj = x + n;
 	  x_eps = (x - (x_adj - n));
 	  prod = __gamma_productl (x_adj - n, x_eps, n, &eps);
diff --git a/sysdeps/ieee754/ldbl-128/s_ceill.c b/sysdeps/ieee754/ldbl-128/s_ceill.c
index e6aba5f2af..2ec55de25a 100644
--- a/sysdeps/ieee754/ldbl-128/s_ceill.c
+++ b/sysdeps/ieee754/ldbl-128/s_ceill.c
@@ -24,6 +24,7 @@ static char rcsid[] = "$NetBSD: $";
  *	Bit twiddling.
  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <math_private.h>
 #include <libm-alias-ldouble.h>
diff --git a/sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c b/sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c
index 8906da4846..c1e0efa5e1 100644
--- a/sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c
+++ b/sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c
@@ -68,7 +68,7 @@ gammal_positive (long double x, int *exp2_adj)
     {
       /* Adjust into the range for using exp (lgamma).  */
       *exp2_adj = 0;
-      long double n = __ceill (x - 1.5L);
+      long double n = ceill (x - 1.5L);
       long double x_adj = x - n;
       long double eps;
       long double prod = __gamma_productl (x_adj, 0, n, &eps);
@@ -85,7 +85,7 @@ gammal_positive (long double x, int *exp2_adj)
 	{
 	  /* Adjust into the range for applying Stirling's
 	     approximation.  */
-	  long double n = __ceill (23.0L - x);
+	  long double n = ceill (23.0L - x);
 	  x_adj = x + n;
 	  x_eps = (x - (x_adj - n));
 	  prod = __gamma_productl (x_adj - n, x_eps, n, &eps);
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_ceill.c b/sysdeps/ieee754/ldbl-128ibm/s_ceill.c
index 7dcff021c4..800835411a 100644
--- a/sysdeps/ieee754/ldbl-128ibm/s_ceill.c
+++ b/sysdeps/ieee754/ldbl-128ibm/s_ceill.c
@@ -17,6 +17,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <math_private.h>
 #include <math_ldbl_opt.h>
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_truncl.c b/sysdeps/ieee754/ldbl-128ibm/s_truncl.c
index a366c42599..9646567883 100644
--- a/sysdeps/ieee754/ldbl-128ibm/s_truncl.c
+++ b/sysdeps/ieee754/ldbl-128ibm/s_truncl.c
@@ -47,7 +47,7 @@ __truncl (long double x)
       else
 	{
 	  /* The high part is a nonzero integer.  */
-	  lo = xh > 0 ? floor (xl) : __ceil (xl);
+	  lo = xh > 0 ? floor (xl) : ceil (xl);
 	  xh = hi;
 	  xl = lo;
 	  ldbl_canonicalize_int (&xh, &xl);
diff --git a/sysdeps/ieee754/ldbl-96/e_gammal_r.c b/sysdeps/ieee754/ldbl-96/e_gammal_r.c
index e88a137abb..addb60d748 100644
--- a/sysdeps/ieee754/ldbl-96/e_gammal_r.c
+++ b/sysdeps/ieee754/ldbl-96/e_gammal_r.c
@@ -62,7 +62,7 @@ gammal_positive (long double x, int *exp2_adj)
     {
       /* Adjust into the range for using exp (lgamma).  */
       *exp2_adj = 0;
-      long double n = __ceill (x - 1.5L);
+      long double n = ceill (x - 1.5L);
       long double x_adj = x - n;
       long double eps;
       long double prod = __gamma_productl (x_adj, 0, n, &eps);
@@ -79,7 +79,7 @@ gammal_positive (long double x, int *exp2_adj)
 	{
 	  /* Adjust into the range for applying Stirling's
 	     approximation.  */
-	  long double n = __ceill (13.0L - x);
+	  long double n = ceill (13.0L - x);
 	  x_adj = x + n;
 	  x_eps = (x - (x_adj - n));
 	  prod = __gamma_productl (x_adj - n, x_eps, n, &eps);
diff --git a/sysdeps/m68k/m680x0/fpu/s_ceil_template.c b/sysdeps/m68k/m680x0/fpu/s_ceil_template.c
index a4d032d90c..be32b19eb6 100644
--- a/sysdeps/m68k/m680x0/fpu/s_ceil_template.c
+++ b/sysdeps/m68k/m680x0/fpu/s_ceil_template.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library.  If not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 
 FLOAT
diff --git a/sysdeps/powerpc/fpu/math_private.h b/sysdeps/powerpc/fpu/math_private.h
index dc6dbfa474..b71278ade4 100644
--- a/sysdeps/powerpc/fpu/math_private.h
+++ b/sysdeps/powerpc/fpu/math_private.h
@@ -77,26 +77,6 @@ __ieee754_sqrtf128 (_Float128 __x)
      __z; })
 # endif
 
-# ifndef __ceil
-#  define __ceil(x)			\
-    ({ double __z;			\
-     __asm __volatile (			\
-	"	frip %0,%1\n"		\
-		: "=f" (__z)		\
-		: "f" (x));		\
-     __z; })
-# endif
-# ifndef __ceilf
-#  define __ceilf(x)			\
-    ({ float __z;			\
-     __asm __volatile (			\
-	"	frip %0,%1\n"		\
-	"	frsp %0,%0\n"		\
-		: "=f" (__z)		\
-		: "f" (x));		\
-     __z; })
-# endif
-
 #endif	/* defined _ARCH_PWR5X */
 
 #endif /* _PPC_MATH_PRIVATE_H_ */
diff --git a/sysdeps/powerpc/power5+/fpu/s_modf.c b/sysdeps/powerpc/power5+/fpu/s_modf.c
index 3d3b3e7866..20c828c778 100644
--- a/sysdeps/powerpc/power5+/fpu/s_modf.c
+++ b/sysdeps/powerpc/power5+/fpu/s_modf.c
@@ -41,7 +41,7 @@ __modf (double x, double *iptr)
     }
   else
     {
-      *iptr = __ceil (x);
+      *iptr = ceil (x);
       return __copysign (x - *iptr, x);
     }
 }
diff --git a/sysdeps/powerpc/power5+/fpu/s_modff.c b/sysdeps/powerpc/power5+/fpu/s_modff.c
index de44218982..807bfe1e03 100644
--- a/sysdeps/powerpc/power5+/fpu/s_modff.c
+++ b/sysdeps/powerpc/power5+/fpu/s_modff.c
@@ -40,7 +40,7 @@ __modff (float x, float *iptr)
     }
   else
     {
-      *iptr = __ceilf (x);
+      *iptr = ceilf (x);
       return __copysignf (x - *iptr, x);
     }
 }
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil.c
index 5f3c0713fb..ae0f628759 100644
--- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil.c
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <math_ldbl_opt.h>
 #include <shlib-compat.h>
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf.c
index 1f10ed6585..4dcf2b0dfe 100644
--- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf.c
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <math_ldbl_opt.h>
 #include <shlib-compat.h>
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil.c
index 5cde4eb46f..2ea9bb878e 100644
--- a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil.c
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <math_ldbl_opt.h>
 #include <shlib-compat.h>
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf.c
index 18697e52b3..b7a7a0afda 100644
--- a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf.c
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <math_ldbl_opt.h>
 #include <shlib-compat.h>
diff --git a/sysdeps/riscv/rv64/rvd/s_ceil.c b/sysdeps/riscv/rv64/rvd/s_ceil.c
index 30caa96869..697f067722 100644
--- a/sysdeps/riscv/rv64/rvd/s_ceil.c
+++ b/sysdeps/riscv/rv64/rvd/s_ceil.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library.  If not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <math_private.h>
 #include <fenv_private.h>
diff --git a/sysdeps/riscv/rvf/s_ceilf.c b/sysdeps/riscv/rvf/s_ceilf.c
index a56f362610..11ca3aba6e 100644
--- a/sysdeps/riscv/rvf/s_ceilf.c
+++ b/sysdeps/riscv/rvf/s_ceilf.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library.  If not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <math.h>
 #include <math_private.h>
 #include <fenv_private.h>
diff --git a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil.c b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil.c
index 3d34622d43..728bb92657 100644
--- a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil.c
+++ b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <sparc-ifunc.h>
 #include <math.h>
 #include <libm-alias-double.h>
diff --git a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf.c b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf.c
index 18d2eb565d..b1149173fe 100644
--- a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf.c
+++ b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <sparc-ifunc.h>
 #include <math.h>
 #include <libm-alias-float.h>
diff --git a/sysdeps/x86_64/fpu/multiarch/s_ceil.c b/sysdeps/x86_64/fpu/multiarch/s_ceil.c
index 070fcdddea..e846dbeafa 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_ceil.c
+++ b/sysdeps/x86_64/fpu/multiarch/s_ceil.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <libm-alias-double.h>
 
 #define ceil __redirect_ceil
diff --git a/sysdeps/x86_64/fpu/multiarch/s_ceilf.c b/sysdeps/x86_64/fpu/multiarch/s_ceilf.c
index db0c6c4bc3..62f3ee7081 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_ceilf.c
+++ b/sysdeps/x86_64/fpu/multiarch/s_ceilf.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#define NO_MATH_REDIRECT
 #include <libm-alias-float.h>
 
 #define ceilf __redirect_ceilf

-- 
Joseph S. Myers
joseph@codesourcery.com
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