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).

17 files changed, 773 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/Makefile b/REORG.TODO/sysdeps/alpha/soft-fp/Makefile
new file mode 100644
index 0000000000..83baa7c49d
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/Makefile
@@ -0,0 +1,11 @@
+#  Software floating-point emulation.
+
+ifeq ($(subdir),soft-fp)
+sysdep_routines += ots_add ots_sub ots_mul ots_div ots_cmp ots_cmpe	\
+	ots_cvtxq ots_cvtqx ots_cvtqux ots_cvttx ots_cvtxt ots_nintxq	\
+	fraiseexcpt
+endif
+
+ifeq ($(subdir),math)
+CPPFLAGS += -I../soft-fp
+endif
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/Versions b/REORG.TODO/sysdeps/alpha/soft-fp/Versions
new file mode 100644
index 0000000000..3901287115
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/Versions
@@ -0,0 +1,8 @@
+libc {
+  GLIBC_2.3.4 {
+    _OtsAddX; _OtsSubX; _OtsMulX; _OtsDivX;
+    _OtsEqlX; _OtsNeqX; _OtsLssX; _OtsLeqX; _OtsGtrX; _OtsGeqX;
+    _OtsCvtQX; _OtsCvtQUX; _OtsCvtXQ; _OtsNintXQ;
+    _OtsConvertFloatTX; _OtsConvertFloatXT;
+  }
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/e_sqrtl.c b/REORG.TODO/sysdeps/alpha/soft-fp/e_sqrtl.c
new file mode 100644
index 0000000000..8b30bcbc52
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/e_sqrtl.c
@@ -0,0 +1,49 @@
+/* long double square root in software floating-point emulation.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 <stdlib.h>
+#include <soft-fp.h>
+#include <quad.h>
+#include <shlib-compat.h>
+
+long double
+__ieee754_sqrtl (const long double a)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A); FP_DECL_Q(C);
+  long double c;
+  long _round = 4;	/* dynamic rounding */
+
+  FP_INIT_ROUNDMODE;
+  FP_UNPACK_Q(A, a);
+  FP_SQRT_Q(C, A);
+  FP_PACK_Q(c, C);
+  FP_HANDLE_EXCEPTIONS;
+  return c;
+}
+
+/* ??? We forgot to add this symbol in 2.15.  Getting this into 2.18 isn't as
+   straight-forward as just adding the alias, since a generic Versions file
+   includes the 2.15 version and the linker uses the first one it sees.  */
+#if SHLIB_COMPAT (libm, GLIBC_2_15, GLIBC_2_18)
+versioned_symbol (libm, __ieee754_sqrtl, __sqrtl_finite, GLIBC_2_18);
+#else
+strong_alias(__ieee754_sqrtl, __sqrtl_finite)
+#endif
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/local-soft-fp.h b/REORG.TODO/sysdeps/alpha/soft-fp/local-soft-fp.h
new file mode 100644
index 0000000000..d562e0829e
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/local-soft-fp.h
@@ -0,0 +1,55 @@
+#include <stdlib.h>
+#include <soft-fp.h>
+#include <quad.h>
+
+/* Helpers for the Ots functions which receive long double arguments
+   in two integer registers, and return values in $16+$17.  */
+
+#define AXP_UNPACK_RAW_Q(X, val)			\
+  do {							\
+    union _FP_UNION_Q _flo;				\
+    _flo.longs.a = val##l;				\
+    _flo.longs.b = val##h;				\
+    FP_UNPACK_RAW_QP(X, &_flo);				\
+  } while (0)
+
+#define AXP_UNPACK_SEMIRAW_Q(X, val)			\
+  do {							\
+    union _FP_UNION_Q _flo;				\
+    _flo.longs.a = val##l;				\
+    _flo.longs.b = val##h;				\
+    FP_UNPACK_SEMIRAW_QP(X, &_flo);			\
+  } while (0)
+
+#define AXP_UNPACK_Q(X, val)				\
+  do {							\
+    AXP_UNPACK_RAW_Q(X, val);				\
+    _FP_UNPACK_CANONICAL(Q, 2, X);			\
+  } while (0)
+
+#define AXP_PACK_RAW_Q(val, X) FP_PACK_RAW_QP(&val##_flo, X)
+
+#define AXP_PACK_SEMIRAW_Q(val, X)			\
+  do {							\
+    _FP_PACK_SEMIRAW(Q, 2, X);				\
+    AXP_PACK_RAW_Q(val, X);				\
+  } while (0)
+
+#define AXP_PACK_Q(val, X)				\
+  do {							\
+    _FP_PACK_CANONICAL(Q, 2, X);			\
+    AXP_PACK_RAW_Q(val, X);				\
+  } while (0)
+
+#define AXP_DECL_RETURN_Q(X) union _FP_UNION_Q X##_flo
+
+/* ??? We don't have a real way to tell the compiler that we're wanting
+   to return values in $16+$17.  Instead use a volatile asm to make sure
+   that the values are live, and just hope that nothing kills the values
+   in between here and the end of the function.  */
+#define AXP_RETURN_Q(X)					\
+  do {							\
+    register long r16 __asm__("16") = X##_flo.longs.a;	\
+    register long r17 __asm__("17") = X##_flo.longs.b;	\
+    asm volatile ("" : : "r"(r16), "r"(r17));		\
+  } while (0)
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_add.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_add.c
new file mode 100644
index 0000000000..7291a730e7
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_add.c
@@ -0,0 +1,38 @@
+/* Software floating-point emulation: addition.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+
+void
+_OtsAddX(long al, long ah, long bl, long bh, long _round)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
+  AXP_DECL_RETURN_Q(c);
+
+  FP_INIT_ROUNDMODE;
+  AXP_UNPACK_SEMIRAW_Q(A, a);
+  AXP_UNPACK_SEMIRAW_Q(B, b);
+  FP_ADD_Q(C, A, B);
+  AXP_PACK_SEMIRAW_Q(c, C);
+  FP_HANDLE_EXCEPTIONS;
+
+  AXP_RETURN_Q(c);
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_cmp.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cmp.c
new file mode 100644
index 0000000000..84498f8059
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cmp.c
@@ -0,0 +1,63 @@
+/* Software floating-point emulation: comparison.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+
+static long
+internal_equality (long al, long ah, long bl, long bh, long neq)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A); FP_DECL_Q(B);
+  long r;
+
+  AXP_UNPACK_RAW_Q(A, a);
+  AXP_UNPACK_RAW_Q(B, b);
+
+  if ((A_e == _FP_EXPMAX_Q && !_FP_FRAC_ZEROP_2(A))
+       || (B_e == _FP_EXPMAX_Q && !_FP_FRAC_ZEROP_2(B)))
+    {
+      /* EQ and NE signal invalid operation only if either operand is SNaN.  */
+      if (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))
+	{
+	  FP_SET_EXCEPTION(FP_EX_INVALID);
+	  FP_HANDLE_EXCEPTIONS;
+	}
+      return -1;
+    }
+
+  r = (A_e == B_e
+       && _FP_FRAC_EQ_2 (A, B)
+       && (A_s == B_s || (!A_e && _FP_FRAC_ZEROP_2(A))));
+  r ^= neq;
+
+  return r;
+}
+
+long
+_OtsEqlX (long al, long ah, long bl, long bh)
+{
+  return internal_equality (al, ah, bl, bh, 0);
+}
+
+long
+_OtsNeqX (long al, long ah, long bl, long bh)
+{
+  return internal_equality (al, ah, bl, bh, 1);
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_cmpe.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cmpe.c
new file mode 100644
index 0000000000..d1e950d991
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cmpe.c
@@ -0,0 +1,77 @@
+/* Software floating-point emulation: comparison.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+
+static long
+internal_compare (long al, long ah, long bl, long bh)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A); FP_DECL_Q(B);
+  long r;
+
+  AXP_UNPACK_RAW_Q(A, a);
+  AXP_UNPACK_RAW_Q(B, b);
+  FP_CMP_Q (r, A, B, 2, 2);
+
+  FP_HANDLE_EXCEPTIONS;
+
+  return r;
+}
+
+long
+_OtsLssX (long al, long ah, long bl, long bh)
+{
+  long r = internal_compare (al, ah, bl, bh);
+  if (r == 2)
+    return -1;
+  else
+    return r < 0;
+}
+
+long
+_OtsLeqX (long al, long ah, long bl, long bh)
+{
+  long r = internal_compare (al, ah, bl, bh);
+  if (r == 2)
+    return -1;
+  else
+    return r <= 0;
+}
+
+long
+_OtsGtrX (long al, long ah, long bl, long bh)
+{
+  long r = internal_compare (al, ah, bl, bh);
+  if (r == 2)
+    return -1;
+  else
+    return r > 0;
+}
+
+long
+_OtsGeqX (long al, long ah, long bl, long bh)
+{
+  long r = internal_compare (al, ah, bl, bh);
+  if (r == 2)
+    return -1;
+  else
+    return r >= 0;
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtqux.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtqux.c
new file mode 100644
index 0000000000..bb6fac00a3
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtqux.c
@@ -0,0 +1,39 @@
+/* Software floating-point emulation: unsigned integer to float conversion.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+
+/* Should never actually be used, since we've more bits of precision
+   than the incomming long, but needed for linkage.  */
+#undef FP_ROUNDMODE
+#define FP_ROUNDMODE  FP_RND_ZERO
+
+void
+_OtsCvtQUX (unsigned long a)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(C);
+  AXP_DECL_RETURN_Q(c);
+
+  FP_FROM_INT_Q(C, a, 64, unsigned long);
+  AXP_PACK_RAW_Q(c, C);
+
+  AXP_RETURN_Q(c);
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtqx.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtqx.c
new file mode 100644
index 0000000000..e1d8a7a4ae
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtqx.c
@@ -0,0 +1,38 @@
+/* Software floating-point emulation: signed integer to float conversion.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+
+/* Should never actually be used, since we've more bits of precision
+   than the incomming long, but needed for linkage.  */
+#undef FP_ROUNDMODE
+#define FP_ROUNDMODE  FP_RND_ZERO
+
+void
+_OtsCvtQX (long a)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(C);
+  AXP_DECL_RETURN_Q(c);
+
+  FP_FROM_INT_Q(C, a, 64, unsigned long);
+  AXP_PACK_RAW_Q(c, C);
+  AXP_RETURN_Q(c);
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvttx.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvttx.c
new file mode 100644
index 0000000000..00e13f3396
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvttx.c
@@ -0,0 +1,47 @@
+/* Software floating-point emulation: floating point extension.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+#include "double.h"
+
+/* Should never actually be used, since we're extending, but needed
+   for linkage.  */
+#undef FP_ROUNDMODE
+#define FP_ROUNDMODE  FP_RND_ZERO
+
+void
+_OtsConvertFloatTX(double a)
+{
+  FP_DECL_EX;
+  FP_DECL_D(A);
+  FP_DECL_Q(C);
+  AXP_DECL_RETURN_Q(c);
+
+  FP_UNPACK_RAW_D(A, a);
+#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
+  FP_EXTEND(Q,D,4,2,C,A);
+#else
+  FP_EXTEND(Q,D,2,1,C,A);
+#endif
+  AXP_PACK_RAW_Q(c, C);
+  FP_HANDLE_EXCEPTIONS;
+
+  AXP_RETURN_Q(c);
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtxq.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtxq.c
new file mode 100644
index 0000000000..eda0074ef0
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtxq.c
@@ -0,0 +1,41 @@
+/* Software floating-point emulation: float to integer conversion.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+
+long
+_OtsCvtXQ (long al, long ah, long _round)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A);
+  unsigned long r;
+  long s;
+
+  /* If bit 3 is set, then integer overflow detection is requested.  */
+  s = _round & 8 ? 1 : -1;
+  _round = _round & 3;
+
+  FP_INIT_ROUNDMODE;
+  AXP_UNPACK_RAW_Q(A, a);
+  FP_TO_INT_Q(r, A, 64, s);
+  FP_HANDLE_EXCEPTIONS;
+
+  return r;
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtxt.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtxt.c
new file mode 100644
index 0000000000..59be37e394
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_cvtxt.c
@@ -0,0 +1,43 @@
+/* Software floating-point emulation: floating point truncation.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+#include "double.h"
+
+double
+_OtsConvertFloatXT (long al, long ah, long _round)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A);
+  FP_DECL_D(R);
+  double r;
+
+  FP_INIT_ROUNDMODE;
+  AXP_UNPACK_SEMIRAW_Q(A, a);
+#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
+  FP_TRUNC(D,Q,2,4,R,A);
+#else
+  FP_TRUNC(D,Q,1,2,R,A);
+#endif
+  FP_PACK_SEMIRAW_D(r, R);
+  FP_HANDLE_EXCEPTIONS;
+
+  return r;
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_div.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_div.c
new file mode 100644
index 0000000000..1ce38ced05
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_div.c
@@ -0,0 +1,38 @@
+/* Software floating-point emulation: division.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+
+void
+_OtsDivX(long al, long ah, long bl, long bh, long _round)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
+  AXP_DECL_RETURN_Q(c);
+
+  FP_INIT_ROUNDMODE;
+  AXP_UNPACK_Q(A, a);
+  AXP_UNPACK_Q(B, b);
+  FP_DIV_Q(C, A, B);
+  AXP_PACK_Q(c, C);
+  FP_HANDLE_EXCEPTIONS;
+
+  AXP_RETURN_Q(c);
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_mul.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_mul.c
new file mode 100644
index 0000000000..937c24246d
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_mul.c
@@ -0,0 +1,38 @@
+/* Software floating-point emulation: multiplication.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+
+void
+_OtsMulX(long al, long ah, long bl, long bh, long _round)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
+  AXP_DECL_RETURN_Q(c);
+
+  FP_INIT_ROUNDMODE;
+  AXP_UNPACK_Q(A, a);
+  AXP_UNPACK_Q(B, b);
+  FP_MUL_Q(C, A, B);
+  AXP_PACK_Q(c, C);
+  FP_HANDLE_EXCEPTIONS;
+
+  AXP_RETURN_Q(c);
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_nintxq.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_nintxq.c
new file mode 100644
index 0000000000..ce3be4fd62
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_nintxq.c
@@ -0,0 +1,51 @@
+/* Software floating-point emulation: convert to fortran nearest.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+
+long
+_OtsNintXQ (long al, long ah, long _round)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
+  unsigned long r;
+  long s;
+
+  /* If bit 3 is set, then integer overflow detection is requested.  */
+  s = _round & 8 ? 1 : -1;
+  _round = _round & 3;
+
+  FP_INIT_ROUNDMODE;
+  AXP_UNPACK_SEMIRAW_Q(A, a);
+
+  /* Build 0.5 * sign(A) */
+  B_e = _FP_EXPBIAS_Q;
+  __FP_FRAC_SET_2 (B, 0, 0);
+  B_s = A_s;
+
+  FP_ADD_Q(C, A, B);
+  _FP_FRAC_SRL_2(C, _FP_WORKBITS);
+  _FP_FRAC_HIGH_RAW_Q(C) &= ~(_FP_W_TYPE)_FP_IMPLBIT_Q;
+  FP_TO_INT_Q(r, C, 64, s);
+  if (s > 0 && (_fex &= FP_EX_INVALID))
+    FP_HANDLE_EXCEPTIONS;
+
+  return r;
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/ots_sub.c b/REORG.TODO/sysdeps/alpha/soft-fp/ots_sub.c
new file mode 100644
index 0000000000..69893f1ea8
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/ots_sub.c
@@ -0,0 +1,38 @@
+/* Software floating-point emulation: subtraction.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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 "local-soft-fp.h"
+
+void
+_OtsSubX(long al, long ah, long bl, long bh, long _round)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
+  AXP_DECL_RETURN_Q(c);
+
+  FP_INIT_ROUNDMODE;
+  AXP_UNPACK_SEMIRAW_Q(A, a);
+  AXP_UNPACK_SEMIRAW_Q(B, b);
+  FP_SUB_Q(C, A, B);
+  AXP_PACK_SEMIRAW_Q(c, C);
+  FP_HANDLE_EXCEPTIONS;
+
+  AXP_RETURN_Q(c);
+}
diff --git a/REORG.TODO/sysdeps/alpha/soft-fp/sfp-machine.h b/REORG.TODO/sysdeps/alpha/soft-fp/sfp-machine.h
new file mode 100644
index 0000000000..7935b540db
--- /dev/null
+++ b/REORG.TODO/sysdeps/alpha/soft-fp/sfp-machine.h
@@ -0,0 +1,99 @@
+/* Machine-dependent software floating-point definitions.
+   Alpha userland IEEE 128-bit version.
+   Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com),
+		  Jakub Jelinek (jj@ultra.linux.cz) and
+		  David S. Miller (davem@redhat.com).
+
+   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 <fenv_libc.h>
+
+#define _FP_W_TYPE_SIZE		64
+#define _FP_W_TYPE		unsigned long
+#define _FP_WS_TYPE		signed long
+#define _FP_I_TYPE		long
+
+#define _FP_MUL_MEAT_S(R,X,Y)					\
+  _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y)
+#define _FP_MUL_MEAT_D(R,X,Y)					\
+  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y)					\
+  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)
+#define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_1_udiv_norm(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_2_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
+#define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1)
+#define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1
+#define _FP_NANSIGN_S		0
+#define _FP_NANSIGN_D		0
+#define _FP_NANSIGN_Q		0
+
+#define _FP_KEEPNANFRACP 1
+#define _FP_QNANNEGATEDP 0
+
+/* Alpha Architecture Handbook, 4.7.10.4 sez that we should prefer any
+   type of NaN in Fb, then Fa.  */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)                      \
+  do {                                                          \
+    R##_s = Y##_s;                                              \
+    _FP_FRAC_COPY_##wc(R,X);                                    \
+    R##_c = FP_CLS_NAN;                                         \
+  } while (0)
+
+/* Rounding mode settings.  */
+#define FP_RND_NEAREST		FE_TONEAREST
+#define FP_RND_ZERO		FE_TOWARDZERO
+#define FP_RND_PINF		FE_UPWARD
+#define FP_RND_MINF		FE_DOWNWARD
+
+/* Obtain the current rounding mode.  It's given as an argument to
+   all the Ots functions, with 4 meaning "dynamic".  */
+#define FP_ROUNDMODE		_round
+
+/* Exception flags. */
+#define FP_EX_INVALID		FE_INVALID
+#define FP_EX_OVERFLOW		FE_OVERFLOW
+#define FP_EX_UNDERFLOW		FE_UNDERFLOW
+#define FP_EX_DIVZERO		FE_DIVBYZERO
+#define FP_EX_INEXACT		FE_INEXACT
+
+#define _FP_TININESS_AFTER_ROUNDING 1
+
+#define FP_INIT_ROUNDMODE					\
+do {								\
+  if (__builtin_expect (_round == 4, 0))			\
+    {								\
+      unsigned long t;						\
+      __asm__ __volatile__("excb; mf_fpcr %0" : "=f"(t));	\
+      _round = (t >> FPCR_ROUND_SHIFT) & 3;			\
+    }								\
+} while (0)
+
+/* We copy the libm function into libc for soft-fp.  */
+extern int __feraiseexcept (int __excepts) attribute_hidden;
+
+#define FP_HANDLE_EXCEPTIONS					\
+do {								\
+  if (__builtin_expect (_fex, 0))				\
+    __feraiseexcept (_fex);					\
+} while (0)
+
+#define FP_TRAPPING_EXCEPTIONS					\
+  ((__ieee_get_fp_control () & SWCR_ENABLE_MASK) << SWCR_ENABLE_SHIFT)