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, 113 insertions, 0 deletions

diff --git a/gcc/bitmap.c b/gcc/bitmap.c
index 010cf75..6206535 100644
--- a/gcc/bitmap.c
+++ b/gcc/bitmap.c
@@ -21,6 +21,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "system.h"
 #include "coretypes.h"
 #include "bitmap.h"
+#include "selftest.h"
 
 /* Memory allocation statistics purpose instance.  */
 mem_alloc_description<bitmap_usage> bitmap_mem_desc;
@@ -2162,5 +2163,117 @@ debug (const bitmap_head *ptr)
     fprintf (stderr, "<nil>\n");
 }
 
+#if CHECKING_P
+
+namespace selftest {
+
+/* Selftests for bitmaps.  */
+
+/* Freshly-created bitmaps ought to be empty.  */
+
+static void
+test_gc_alloc ()
+{
+  bitmap b = bitmap_gc_alloc ();
+  ASSERT_TRUE (bitmap_empty_p (b));
+}
+
+/* Verify bitmap_set_range.  */
+
+static void
+test_set_range ()
+{
+  bitmap b = bitmap_gc_alloc ();
+  ASSERT_TRUE (bitmap_empty_p (b));
+
+  bitmap_set_range (b, 7, 5);
+  ASSERT_FALSE (bitmap_empty_p (b));
+  ASSERT_EQ (5, bitmap_count_bits (b));
+
+  /* Verify bitmap_bit_p at the boundaries.  */
+  ASSERT_FALSE (bitmap_bit_p (b, 6));
+  ASSERT_TRUE (bitmap_bit_p (b, 7));
+  ASSERT_TRUE (bitmap_bit_p (b, 11));
+  ASSERT_FALSE (bitmap_bit_p (b, 12));
+}
+
+/* Verify splitting a range into two pieces using bitmap_clear_bit.  */
+
+static void
+test_clear_bit_in_middle ()
+{
+  bitmap b = bitmap_gc_alloc ();
+
+  /* Set b to [100..200].  */
+  bitmap_set_range (b, 100, 100);
+  ASSERT_EQ (100, bitmap_count_bits (b));
+
+  /* Clear a bit in the middle.  */
+  bool changed = bitmap_clear_bit (b, 150);
+  ASSERT_TRUE (changed);
+  ASSERT_EQ (99, bitmap_count_bits (b));
+  ASSERT_TRUE (bitmap_bit_p (b, 149));
+  ASSERT_FALSE (bitmap_bit_p (b, 150));
+  ASSERT_TRUE (bitmap_bit_p (b, 151));
+}
+
+/* Verify bitmap_copy.  */
+
+static void
+test_copying ()
+{
+  bitmap src = bitmap_gc_alloc ();
+  bitmap_set_range (src, 40, 10);
+
+  bitmap dst = bitmap_gc_alloc ();
+  ASSERT_FALSE (bitmap_equal_p (src, dst));
+  bitmap_copy (dst, src);
+  ASSERT_TRUE (bitmap_equal_p (src, dst));
+
+  /* Verify that we can make them unequal again...  */
+  bitmap_set_range (src, 70, 5);
+  ASSERT_FALSE (bitmap_equal_p (src, dst));
+
+  /* ...and that changing src after the copy didn't affect
+     the other: */
+  ASSERT_FALSE (bitmap_bit_p (dst, 70));
+}
+
+/* Verify bitmap_single_bit_set_p.  */
+
+static void
+test_bitmap_single_bit_set_p ()
+{
+  bitmap b = bitmap_gc_alloc ();
+
+  ASSERT_FALSE (bitmap_single_bit_set_p (b));
+
+  bitmap_set_range (b, 42, 1);
+  ASSERT_TRUE (bitmap_single_bit_set_p (b));
+  ASSERT_EQ (42, bitmap_first_set_bit (b));
+
+  bitmap_set_range (b, 1066, 1);
+  ASSERT_FALSE (bitmap_single_bit_set_p (b));
+  ASSERT_EQ (42, bitmap_first_set_bit (b));
+
+  bitmap_clear_range (b, 0, 100);
+  ASSERT_TRUE (bitmap_single_bit_set_p (b));
+  ASSERT_EQ (1066, bitmap_first_set_bit (b));
+}
+
+/* Run all of the selftests within this file.  */
+
+void
+bitmap_c_tests ()
+{
+  test_gc_alloc ();
+  test_set_range ();
+  test_clear_bit_in_middle ();
+  test_copying ();
+  test_bitmap_single_bit_set_p ();
+}
+
+} // namespace selftest
+#endif /* CHECKING_P */
 
 #include "gt-bitmap.h"