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, 143 insertions, 0 deletions

diff --git a/REORG.TODO/math/gen-fromfp-tests.py b/REORG.TODO/math/gen-fromfp-tests.py
new file mode 100755
index 0000000000..8a626cb9f2
--- /dev/null
+++ b/REORG.TODO/math/gen-fromfp-tests.py
@@ -0,0 +1,143 @@
+#!/usr/bin/python3
+# Expand test inputs for fromfp functions into text to edit into libm-test.inc.
+# Copyright (C) 2016-2017 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/>.
+
+# Take test inputs on stdin, in format:
+#
+# i <value>:width [int-value]
+#
+# for integer inputs, or
+#
+# t <value> <pos> <z> <a>
+#
+# for noninteger inputs, where <pos> is "a" for fractional part
+# between 0 and 0.5, "be" for 0.5 with even integer part, "bo" for 0.5
+# with odd integer part and "c" for between 0.5 and 1; <z> is the
+# value truncated towards zero, <a> is the value rounded away from
+# zero, both being in the form <value>:<width>.  Width values are for
+# the smallest type that can hold the value; for positive values, this
+# is an unsigned type.
+#
+# Command-line argument is function to generate tests for.  Any input
+# lines not of the above form are just passed through unchanged.
+#
+# Note that the output of this script forms the largest part of the
+# tests for the fromfp functions, but not the whole of those tests.
+
+import sys
+
+func = sys.argv[1]
+
+invalid_res = 'IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM'
+exact_res = 'NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED'
+if func == 'fromfpx' or func == 'ufromfpx':
+    inexact_res = 'INEXACT_EXCEPTION|ERRNO_UNCHANGED'
+else:
+    inexact_res = exact_res
+unsigned = func.startswith('ufromfp')
+rm_list = ['FP_INT_UPWARD', 'FP_INT_DOWNWARD', 'FP_INT_TOWARDZERO',
+           'FP_INT_TONEARESTFROMZERO', 'FP_INT_TONEAREST']
+rm_away_pos = {'FP_INT_UPWARD': 'a',
+               'FP_INT_DOWNWARD': 'z',
+               'FP_INT_TOWARDZERO': 'z',
+               'FP_INT_TONEARESTFROMZERO': 'be',
+               'FP_INT_TONEAREST': 'bo'}
+rm_away_neg = {'FP_INT_UPWARD': 'z',
+               'FP_INT_DOWNWARD': 'a',
+               'FP_INT_TOWARDZERO': 'z',
+               'FP_INT_TONEARESTFROMZERO': 'be',
+               'FP_INT_TONEAREST': 'bo'}
+if unsigned:
+    test_macro = 'TEST_fiu_U'
+else:
+    test_macro = 'TEST_fiu_M'
+
+for line in sys.stdin:
+    if line.startswith('i'):
+        data = line.split()
+        val_width = data[1]
+        val, width = val_width.split(':')
+        negative = val.startswith('-')
+        if unsigned and negative:
+            continue
+        width = int(width)
+        if not unsigned and not negative:
+            width += 1
+        width_list = [0, 1]
+        if width > 2:
+            width_list.append(width - 1)
+        if width > 1 and width <= 64:
+            width_list.append(width)
+        if width < 64:
+            width_list.append(width + 1)
+        if width < 63:
+            width_list.append(64)
+        width_list = [(w, str(w)) for w in width_list]
+        width_list.append((64, 'UINT_MAX'))
+        for rm in rm_list:
+            for we in width_list:
+                w, ws = we
+                if w < width:
+                    print('    %s (%s, %s, %s, %s, %s),' %
+                          (test_macro, func, val, rm, ws, invalid_res))
+                else:
+                    print('    %s (%s, %s, %s, %s, %s, %s),' %
+                          (test_macro, func, val, rm, ws, val, exact_res))
+    elif line.startswith('t'):
+        data = line.split()
+        val = data[1]
+        pos = data[2]
+        z, z_width = data[3].split(':')
+        z_width = int(z_width)
+        a, a_width = data[4].split(':')
+        a_width = int(a_width)
+        if unsigned and z.startswith('-'):
+            continue
+        negative = val.startswith('-')
+        if negative:
+            rm_away = rm_away_neg
+        else:
+            rm_away = rm_away_pos
+        for rm in rm_list:
+            if pos >= rm_away[rm]:
+                res, width = a, a_width
+            else:
+                res, width = z, z_width
+            if not unsigned and not negative and res != '0':
+                width += 1
+            width_list = [0, 1]
+            if width > 2:
+                width_list.append(width - 1)
+            if width > 1 and width <= 64:
+                width_list.append(width)
+            if width < 64:
+                width_list.append(width + 1)
+            if width < 63:
+                width_list.append(64)
+            width_list = [(w, str(w)) for w in width_list]
+            width_list.append((64, 'UINT_MAX'))
+            for we in width_list:
+                w, ws = we
+                if w < width or (unsigned and res.startswith('-')):
+                    print('    %s (%s, %s, %s, %s, %s),' %
+                          (test_macro, func, val, rm, ws, invalid_res))
+                else:
+                    print('    %s (%s, %s, %s, %s, %s, %s),' %
+                          (test_macro, func, val, rm, ws, res, inexact_res))
+    else:
+        print(line.rstrip())