Selftest framework

gcc/ChangeLog:
	* Makefile.in (OBJS): Add function-tests.o,
	hash-map-tests.o, hash-set-tests.o, rtl-tests.o,
	selftest-run-tests.o.
	(OBJS-libcommon): Add selftest.o.
	(OBJS-libcommon-target): Add selftest.o.
	(all.internal): Add "selftest".
	(all.cross): Likewise.
	(selftest): New phony target.
	(s-selftest): New target.
	(selftest-gdb): New phony target.
	(COLLECT2_OBJS): Add selftest.o.
	* bitmap.c: Include "selftest.h".
	(selftest::test_gc_alloc): New function.
	(selftest::test_set_range): New function.
	(selftest::test_clear_bit_in_middle): New function.
	(selftest::test_copying): New function.
	(selftest::test_bitmap_single_bit_set_p): New function.
	(selftest::bitmap_c_tests): New function.
	* common.opt (fself-test): New.
	* diagnostic-show-locus.c: Include "selftest.h".
	(make_range): New function.
	(test_range_contains_point_for_single_point): New function.
	(test_range_contains_point_for_single_line): New function.
	(test_range_contains_point_for_multiple_lines): New function.
	(assert_eq): New function.
	(test_get_line_width_without_trailing_whitespace): New function.
	(selftest::diagnostic_show_locus_c_tests): New function.
	* et-forest.c: Include "selftest.h".
	(selftest::test_single_node): New function.
	(selftest::test_simple_tree): New function.
	(selftest::test_disconnected_nodes): New function.
	(selftest::et_forest_c_tests): New function.
	* fold-const.c: Include "selftest.h".
	(selftest::assert_binop_folds_to_const): New function.
	(selftest::assert_binop_folds_to_nonlvalue): New function.
	(selftest::test_arithmetic_folding): New function.
	(selftest::fold_const_c_tests): New function.
	* function-tests.c: New file.
	* gimple.c: Include "selftest.h".
	Include "gimple-pretty-print.h".
	(selftest::verify_gimple_pp): New function.
	(selftest::test_assign_single): New function.
	(selftest::test_assign_binop): New function.
	(selftest::test_nop_stmt): New function.
	(selftest::test_return_stmt): New function.
	(selftest::test_return_without_value): New function.
	(selftest::gimple_c_tests): New function.
	* hash-map-tests.c: New file.
	* hash-set-tests.c: New file.
	* input.c: Include "selftest.h".
	(selftest::assert_loceq): New function.
	(selftest::test_accessing_ordinary_linemaps): New function.
	(selftest::test_unknown_location): New function.
	(selftest::test_builtins): New function.
	(selftest::test_reading_source_line): New function.
	(selftest::input_c_tests): New function.
	* rtl-tests.c: New file.
	* selftest-run-tests.c: New file.
	* selftest.c: New file.
	* selftest.h: New file.
	* spellcheck.c: Include "selftest.h".
	(selftest::levenshtein_distance_unit_test_oneway): New function,
	adapted from testsuite/gcc.dg/plugin/levenshtein_plugin.c.
	(selftest::levenshtein_distance_unit_test): Likewise.
	(selftest::spellcheck_c_tests): Likewise.
	* toplev.c: Include selftest.h.
	(toplev::run_self_tests): New.
	(toplev::main): Handle -fself-test.
	* toplev.h (toplev::run_self_tests): New.
	* tree.c: Include "selftest.h".
	(selftest::test_integer_constants): New function.
	(selftest::test_identifiers): New function.
	(selftest::test_labels): New function.
	(selftest::tree_c_tests): New function.
	* tree-cfg.c: Include "selftest.h".
	(selftest::push_fndecl): New function.
	(selftest::test_linear_chain): New function.
	(selftest::test_diamond): New function.
	(selftest::test_fully_connected): New function.
	(selftest::tree_cfg_c_tests): New function.
	* vec.c: Include "selftest.h".
	(selftest::safe_push_range): New function.
	(selftest::test_quick_push): New function.
	(selftest::test_safe_push): New function.
	(selftest::test_truncate): New function.
	(selftest::test_safe_grow_cleared): New function.
	(selftest::test_pop): New function.
	(selftest::test_safe_insert): New function.
	(selftest::test_ordered_remove): New function.
	(selftest::test_unordered_remove): New function.
	(selftest::test_block_remove): New function.
	(selftest::reverse_cmp): New function.
	(selftest::test_qsort): New function.
	(selftest::vec_c_tests): New function.c.
	* wide-int.cc: Include selftest.h and wide-int-print.h.
	(selftest::from_int <wide_int>): New function.
	(selftest::from_int <offset_int>): New function.
	(selftest::from_int <widest_int>): New function.
	(selftest::assert_deceq): New function.
	(selftest::assert_hexeq): New function.
	(selftest::test_printing <VALUE_TYPE>): New function template.
	(selftest::test_ops <VALUE_TYPE>): New function template.
	(selftest::test_comparisons <VALUE_TYPE>): New function template.
	(selftest::run_all_wide_int_tests <VALUE_TYPE>): New function
	template.
	(selftest::wide_int_cc_tests): New function.

gcc/testsuite/ChangeLog:
	* gcc.dg/plugin/levenshtein-test-1.c: Delete.
	* gcc.dg/plugin/levenshtein_plugin.c: Delete.
	* gcc.dg/plugin/plugin.exp (plugin_test_list): Remove the
	above.

From-SVN: r237144

1 files changed, 170 insertions, 0 deletions

diff --git a/gcc/wide-int.cc b/gcc/wide-int.cc
index 8648e7d..30d355f 100644
--- a/gcc/wide-int.cc
+++ b/gcc/wide-int.cc
@@ -23,6 +23,8 @@ along with GCC; see the file COPYING3.  If not see
 #include "coretypes.h"
 #include "tm.h"
 #include "tree.h"
+#include "selftest.h"
+#include "wide-int-print.h"
 
 
 #define HOST_BITS_PER_HALF_WIDE_INT 32
@@ -2144,3 +2146,171 @@ template void generic_wide_int <wide_int_ref_storage <false> >::dump () const;
 template void generic_wide_int <wide_int_ref_storage <true> >::dump () const;
 template void offset_int::dump () const;
 template void widest_int::dump () const;
+
+
+#if CHECKING_P
+
+namespace selftest {
+
+/* Selftests for wide ints.  We run these multiple times, once per type.  */
+
+/* Helper function for building a test value.  */
+
+template <class VALUE_TYPE>
+static VALUE_TYPE
+from_int (int i);
+
+/* Specializations of the fixture for each wide-int type.  */
+
+/* Specialization for VALUE_TYPE == wide_int.  */
+
+template <>
+wide_int
+from_int (int i)
+{
+  return wi::shwi (i, 32);
+}
+
+/* Specialization for VALUE_TYPE == offset_int.  */
+
+template <>
+offset_int
+from_int (int i)
+{
+  return offset_int (i);
+}
+
+/* Specialization for VALUE_TYPE == widest_int.  */
+
+template <>
+widest_int
+from_int (int i)
+{
+  return widest_int (i);
+}
+
+/* Verify that print_dec (WI, ..., SGN) gives the expected string
+   representation (using base 10).  */
+
+static void
+assert_deceq (const char *expected, const wide_int_ref &wi, signop sgn)
+{
+  char buf[WIDE_INT_PRINT_BUFFER_SIZE];
+  print_dec (wi, buf, sgn);
+  ASSERT_STREQ (expected, buf);
+}
+
+/* Likewise for base 16.  */
+
+static void
+assert_hexeq (const char *expected, const wide_int_ref &wi)
+{
+  char buf[WIDE_INT_PRINT_BUFFER_SIZE];
+  print_hex (wi, buf);
+  ASSERT_STREQ (expected, buf);
+}
+
+/* Test cases.  */
+
+/* Verify that print_dec and print_hex work for VALUE_TYPE.  */
+
+template <class VALUE_TYPE>
+static void
+test_printing ()
+{
+  VALUE_TYPE a = from_int<VALUE_TYPE> (42);
+  assert_deceq ("42", a, SIGNED);
+  assert_hexeq ("0x2a", a);
+}
+
+/* Verify that various operations work correctly for VALUE_TYPE,
+   unary and binary, using both function syntax, and
+   overloaded-operators.  */
+
+template <class VALUE_TYPE>
+static void
+test_ops ()
+{
+  VALUE_TYPE a = from_int<VALUE_TYPE> (7);
+  VALUE_TYPE b = from_int<VALUE_TYPE> (3);
+
+  /* Using functions.  */
+  assert_deceq ("-7", wi::neg (a), SIGNED);
+  assert_deceq ("10", wi::add (a, b), SIGNED);
+  assert_deceq ("4", wi::sub (a, b), SIGNED);
+  assert_deceq ("-4", wi::sub (b, a), SIGNED);
+  assert_deceq ("21", wi::mul (a, b), SIGNED);
+
+  /* Using operators.  */
+  assert_deceq ("-7", -a, SIGNED);
+  assert_deceq ("10", a + b, SIGNED);
+  assert_deceq ("4", a - b, SIGNED);
+  assert_deceq ("-4", b - a, SIGNED);
+  assert_deceq ("21", a * b, SIGNED);
+}
+
+/* Verify that various comparisons work correctly for VALUE_TYPE.  */
+
+template <class VALUE_TYPE>
+static void
+test_comparisons ()
+{
+  VALUE_TYPE a = from_int<VALUE_TYPE> (7);
+  VALUE_TYPE b = from_int<VALUE_TYPE> (3);
+
+  /* == */
+  ASSERT_TRUE (wi::eq_p (a, a));
+  ASSERT_FALSE (wi::eq_p (a, b));
+
+  /* != */
+  ASSERT_TRUE (wi::ne_p (a, b));
+  ASSERT_FALSE (wi::ne_p (a, a));
+
+  /* < */
+  ASSERT_FALSE (wi::lts_p (a, a));
+  ASSERT_FALSE (wi::lts_p (a, b));
+  ASSERT_TRUE (wi::lts_p (b, a));
+
+  /* <= */
+  ASSERT_TRUE (wi::les_p (a, a));
+  ASSERT_FALSE (wi::les_p (a, b));
+  ASSERT_TRUE (wi::les_p (b, a));
+
+  /* > */
+  ASSERT_FALSE (wi::gts_p (a, a));
+  ASSERT_TRUE (wi::gts_p (a, b));
+  ASSERT_FALSE (wi::gts_p (b, a));
+
+  /* >= */
+  ASSERT_TRUE (wi::ges_p (a, a));
+  ASSERT_TRUE (wi::ges_p (a, b));
+  ASSERT_FALSE (wi::ges_p (b, a));
+
+  /* comparison */
+  ASSERT_EQ (-1, wi::cmps (b, a));
+  ASSERT_EQ (0, wi::cmps (a, a));
+  ASSERT_EQ (1, wi::cmps (a, b));
+}
+
+/* Run all of the selftests, using the given VALUE_TYPE.  */
+
+template <class VALUE_TYPE>
+static void run_all_wide_int_tests ()
+{
+  test_printing <VALUE_TYPE> ();
+  test_ops <VALUE_TYPE> ();
+  test_comparisons <VALUE_TYPE> ();
+}
+
+/* Run all of the selftests within this file, for all value types.  */
+
+void
+wide_int_cc_tests ()
+{
+ run_all_wide_int_tests <wide_int> ();
+ run_all_wide_int_tests <offset_int> ();
+ run_all_wide_int_tests <widest_int> ();
+}
+
+} // namespace selftest
+#endif /* CHECKING_P */