@@ -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 +2163,96 @@ debug (const bitmap_head *ptr)
fprintf (stderr, "<nil>\n");
}
+#if CHECKING_P
+namespace {
+
+/* Freshly-created bitmaps ought to be empty. */
+
+TEST (bitmap_test, gc_alloc)
+{
+ bitmap b = bitmap_gc_alloc ();
+ EXPECT_TRUE (bitmap_empty_p (b));
+}
+
+/* Verify bitmap_set_range. */
+
+TEST (bitmap_test, set_range)
+{
+ bitmap b = bitmap_gc_alloc ();
+ EXPECT_TRUE (bitmap_empty_p (b));
+
+ bitmap_set_range (b, 7, 5);
+ EXPECT_FALSE (bitmap_empty_p (b));
+ EXPECT_EQ (5, bitmap_count_bits (b));
+
+ /* Verify bitmap_bit_p at the boundaries. */
+ EXPECT_FALSE (bitmap_bit_p (b, 6));
+ EXPECT_TRUE (bitmap_bit_p (b, 7));
+ EXPECT_TRUE (bitmap_bit_p (b, 11));
+ EXPECT_FALSE (bitmap_bit_p (b, 12));
+}
+
+/* Verify splitting a range into two pieces using bitmap_clear_bit. */
+
+TEST (bitmap_test, clear_bit_in_middle)
+{
+ bitmap b = bitmap_gc_alloc ();
+
+ /* Set b to [100..200]. */
+ bitmap_set_range (b, 100, 100);
+ EXPECT_EQ (100, bitmap_count_bits (b));
+
+ /* Clear a bit in the middle. */
+ bool changed = bitmap_clear_bit (b, 150);
+ EXPECT_TRUE (changed);
+ EXPECT_EQ (99, bitmap_count_bits (b));
+ EXPECT_TRUE (bitmap_bit_p (b, 149));
+ EXPECT_FALSE (bitmap_bit_p (b, 150));
+ EXPECT_TRUE (bitmap_bit_p (b, 151));
+}
+
+/* Verify bitmap_copy. */
+
+TEST (bitmap_test, copying)
+{
+ bitmap src = bitmap_gc_alloc ();
+ bitmap_set_range (src, 40, 10);
+
+ bitmap dst = bitmap_gc_alloc ();
+ EXPECT_FALSE (bitmap_equal_p (src, dst));
+ bitmap_copy (dst, src);
+ EXPECT_TRUE (bitmap_equal_p (src, dst));
+
+ /* Verify that we can make them unequal again... */
+ bitmap_set_range (src, 70, 5);
+ EXPECT_FALSE (bitmap_equal_p (src, dst));
+
+ /* ...and that changing src after the copy didn't affect
+ the other: */
+ EXPECT_FALSE (bitmap_bit_p (dst, 70));
+}
+
+/* Verify bitmap_single_bit_set_p. */
+TEST (bitmap_test, bitmap_single_bit_set_p)
+{
+ bitmap b = bitmap_gc_alloc ();
+
+ EXPECT_FALSE (bitmap_single_bit_set_p (b));
+
+ bitmap_set_range (b, 42, 1);
+ EXPECT_TRUE (bitmap_single_bit_set_p (b));
+ EXPECT_EQ (42, bitmap_first_set_bit (b));
+
+ bitmap_set_range (b, 1066, 1);
+ EXPECT_FALSE (bitmap_single_bit_set_p (b));
+ EXPECT_EQ (42, bitmap_first_set_bit (b));
+
+ bitmap_clear_range (b, 0, 100);
+ EXPECT_TRUE (bitmap_single_bit_set_p (b));
+ EXPECT_EQ (1066, bitmap_first_set_bit (b));
+}
+
+} // anon namespace
+#endif /* CHECKING_P */
#include "gt-bitmap.h"