Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 124 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/generic/math_private_calls.h b/REORG.TODO/sysdeps/generic/math_private_calls.h
new file mode 100644
index 0000000000..34bbd5e684
--- /dev/null
+++ b/REORG.TODO/sysdeps/generic/math_private_calls.h
@@ -0,0 +1,124 @@
+/* Private function declarations for libm.
+   Copyright (C) 2011-2017 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 __MSUF_X(x, suffix) x ## suffix
+#define __MSUF_S(...) __MSUF_X (__VA_ARGS__)
+#define __MSUF(x) __MSUF_S (x, _MSUF_)
+
+#define __MSUF_R_X(x, suffix) x ## suffix ## _r
+#define __MSUF_R_S(...) __MSUF_R_X (__VA_ARGS__)
+#define __MSUF_R(x) __MSUF_R_S (x, _MSUF_)
+
+/* IEEE style elementary functions.  */
+extern _Mdouble_ __MSUF (__ieee754_acos) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_acosh) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_asin) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_atan2) (_Mdouble_, _Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_atanh) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_cosh) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_exp) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_exp10) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_exp2) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_fmod) (_Mdouble_, _Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_gamma) (_Mdouble_);
+extern _Mdouble_ __MSUF_R (__ieee754_gamma) (_Mdouble_, int *);
+extern _Mdouble_ __MSUF (__ieee754_hypot) (_Mdouble_, _Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_j0) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_j1) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_jn) (int, _Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_lgamma) (_Mdouble_);
+extern _Mdouble_ __MSUF_R (__ieee754_lgamma) (_Mdouble_, int *);
+extern _Mdouble_ __MSUF (__ieee754_log) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_log10) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_log2) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_pow) (_Mdouble_, _Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_remainder) (_Mdouble_, _Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_sinh) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_sqrt) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_y0) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_y1) (_Mdouble_);
+extern _Mdouble_ __MSUF (__ieee754_yn) (int, _Mdouble_);
+
+extern _Mdouble_ __MSUF (__ieee754_scalb) (_Mdouble_, _Mdouble_);
+extern int __MSUF (__ieee754_ilogb) (_Mdouble_);
+
+extern int32_t __MSUF (__ieee754_rem_pio2) (_Mdouble_, _Mdouble_ *);
+
+/* fdlibm kernel functions.  */
+extern _Mdouble_ __MSUF (__kernel_sin) (_Mdouble_, _Mdouble_, int);
+extern _Mdouble_ __MSUF (__kernel_cos) (_Mdouble_, _Mdouble_);
+extern _Mdouble_ __MSUF (__kernel_tan) (_Mdouble_, _Mdouble_, int);
+
+#if defined __MATH_DECLARING_LONG_DOUBLE || defined __MATH_DECLARING_FLOATN
+extern void __MSUF (__kernel_sincos) (_Mdouble_, _Mdouble_,
+				      _Mdouble_ *, _Mdouble_ *, int);
+#endif
+
+#if !defined __MATH_DECLARING_LONG_DOUBLE || defined __MATH_DECLARING_FLOATN
+extern int __MSUF (__kernel_rem_pio2) (_Mdouble_ *, _Mdouble_ *, int,
+				       int, int, const int32_t *);
+#endif
+
+/* Internal functions.  */
+#if !defined __MATH_DECLARING_LONG_DOUBLE || !defined NO_LONG_DOUBLE
+extern _Mdouble_ __MSUF (__copysign) (_Mdouble_ x, _Mdouble_ __y);
+
+extern inline _Mdouble_
+__MSUF (__copysign) (_Mdouble_ x, _Mdouble_ __y)
+{
+  return __MSUF (__builtin_copysign) (x, __y);
+}
+#endif
+
+/* Return X^2 + Y^2 - 1, computed without large cancellation error.
+   It is given that 1 > X >= Y >= epsilon / 2, and that X^2 + Y^2 >=
+   0.5.  */
+extern _Mdouble_ __MSUF (__x2y2m1) (_Mdouble_ x, _Mdouble_ y);
+
+/* Compute the product of X + X_EPS, X + X_EPS + 1, ..., X + X_EPS + N
+   - 1, in the form R * (1 + *EPS) where the return value R is an
+   approximation to the product and *EPS is set to indicate the
+   approximate error in the return value.  X is such that all the
+   values X + 1, ..., X + N - 1 are exactly representable, and X_EPS /
+   X is small enough that factors quadratic in it can be
+   neglected.  */
+extern _Mdouble_ __MSUF (__gamma_product) (_Mdouble_ x, _Mdouble_ x_eps,
+					   int n, _Mdouble_ *eps);
+
+/* Compute lgamma of a negative argument X, if it is in a range
+   (depending on the floating-point format) for which expansion around
+   zeros is used, setting *SIGNGAMP accordingly.  */
+extern _Mdouble_ __MSUF (__lgamma_neg) (_Mdouble_ x, int *signgamp);
+
+/* Compute the product of 1 + (T / (X + X_EPS)), 1 + (T / (X + X_EPS +
+   1)), ..., 1 + (T / (X + X_EPS + N - 1)), minus 1.  X is such that
+   all the values X + 1, ..., X + N - 1 are exactly representable, and
+   X_EPS / X is small enough that factors quadratic in it can be
+   neglected.  */
+#if !defined __MATH_DECLARING_FLOAT
+extern _Mdouble_ __MSUF (__lgamma_product) (_Mdouble_ t, _Mdouble_ x,
+					    _Mdouble_ x_eps, int n);
+#endif
+
+#undef __MSUF_X
+#undef __MSUF_S
+#undef __MSUF
+
+#undef __MSUF_R_X
+#undef __MSUF_R_S
+#undef __MSUF_R