Aarch64: easy division and remainder for long ints.
Also adding test 701 to test easy division and remainder for int and
long integers.
Change-Id: I8212c84e4d9eb3e9f3f4f1f1c3418537bb13dc55
diff --git a/test/701-easy-div-rem/genMain.py b/test/701-easy-div-rem/genMain.py
new file mode 100644
index 0000000..80eac34
--- /dev/null
+++ b/test/701-easy-div-rem/genMain.py
@@ -0,0 +1,155 @@
+# Copyright (C) 2014 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+all_tests = [
+ ({'@INT@': 'int', '@SUFFIX@':''},
+ [('CheckDiv', 'idiv_by_pow2_', [2**i for i in range(31)]),
+ ('CheckDiv', 'idiv_by_small_', [i for i in range(3, 16) if i not in (4, 8)]),
+ ('CheckRem', 'irem_by_pow2_', [2**i for i in range(31)])]),
+ ({'@INT@': 'long', '@SUFFIX@': 'l'},
+ [('CheckDiv', 'ldiv_by_pow2_', [2**i for i in range(63)]),
+ ('CheckDiv', 'ldiv_by_small_', [i for i in range(3, 16) if i not in (4, 8)]),
+ ('CheckRem', 'lrem_by_pow2_', [2**i for i in range(63)])])
+]
+
+def subst_vars(variables, text):
+ '''Substitute variables in text.'''
+ for key, value in variables.iteritems():
+ text = text.replace(str(key), str(value))
+ return text
+
+# Generate all the function bodies (in decls) and all the function calls (in calls).
+decls, calls = '', {}
+for default_vars, tests in all_tests:
+ local_vars = default_vars.copy()
+ int_type = local_vars['@INT@']
+ for checker, name, values in tests:
+ local_vars['@CHECKER@'] = checker
+ for i, value in enumerate(values):
+ local_vars['@NAME@'] = name + str(i)
+ local_vars['@VALUE@'] = value
+ local_vars['@OP@'] = '/' if 'div' in name else '%'
+
+ # Function body.
+ decls += subst_vars(local_vars, '''
+ public static @INT@ @NAME@(@INT@ x) {return x @OP@ @VALUE@@SUFFIX@;}''')
+
+ # Function call and test.
+ calls[int_type] = calls.get(int_type, '') + subst_vars(local_vars, '''
+ @INT@@CHECKER@("@NAME@", @NAME@(x), x, @VALUE@@SUFFIX@);''')
+
+# Generate the checkers.
+checkers = ''
+local_vars = {}
+for int_type in ('int', 'long'):
+ local_vars['@INT@'] = int_type
+ for op, op_name in (('/', 'Div'), ('%', 'Rem')):
+ local_vars['@OP@'] = op
+ local_vars['@OP_NAME@'] = op_name
+ checkers += subst_vars(local_vars, '''
+ public static void @INT@Check@OP_NAME@(String desc, @INT@ result, @INT@ dividend, @INT@ divisor) {
+ @INT@ correct_result = dividend @OP@ divisor;
+ if (result != correct_result) {
+ reportError(desc + "(" + dividend + ") == " + result +
+ " should be " + correct_result);
+ }
+ }''')
+
+
+code = \
+'''/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+public class Main {
+ public static int num_errors = 0;
+
+ public static void reportError(String message) {
+ if (num_errors == 10) {
+ System.out.println("Omitting other error messages...");
+ } else if (num_errors < 10) {
+ System.out.println(message);
+ }
+ num_errors += 1;
+ }
+%s
+%s
+
+ public static void intCheckAll(int x) {%s
+ }
+
+ public static void longCheckAll(long x) {%s
+ }
+
+ public static void main(String[] args) {
+ int i;
+ long l;
+
+ System.out.println("Begin");
+
+ System.out.println("Int: checking some equally spaced dividends...");
+ for (i = -1000; i < 1000; i += 300) {
+ intCheckAll(i);
+ intCheckAll(-i);
+ }
+
+ System.out.println("Int: checking small dividends...");
+ for (i = 1; i < 100; i += 1) {
+ intCheckAll(i);
+ intCheckAll(-i);
+ }
+
+ System.out.println("Int: checking big dividends...");
+ for (i = 0; i < 100; i += 1) {
+ intCheckAll(Integer.MAX_VALUE - i);
+ intCheckAll(Integer.MIN_VALUE + i);
+ }
+
+ System.out.println("Long: checking some equally spaced dividends...");
+ for (l = 0l; l < 1000000000000l; l += 300000000000l) {
+ longCheckAll(l);
+ longCheckAll(-l);
+ }
+
+ System.out.println("Long: checking small dividends...");
+ for (l = 1l; l < 100l; l += 1l) {
+ longCheckAll(l);
+ longCheckAll(-l);
+ }
+
+ System.out.println("Long: checking big dividends...");
+ for (l = 0l; l < 100l; l += 1l) {
+ longCheckAll(Long.MAX_VALUE - l);
+ longCheckAll(Long.MIN_VALUE + l);
+ }
+
+ System.out.println("End");
+ }
+}
+''' % (checkers, decls, calls['int'], calls['long'])
+
+with open('src/Main.java', 'w') as f:
+ f.write(code)