re PR tree-optimization/82493 (UBSAN in gcc/sbitmap.c:368:28: runtime error: shift exponent 64 is too large for 64-bit type 'long unsigned int')
PR tree-optimization/82493
* sbitmap.c (bitmap_bit_in_range_p): Fix the implementation.
(test_range_functions): New function.
(sbitmap_c_tests): Likewise.
* selftest-run-tests.c (selftest::run_tests): Run new tests.
* selftest.h (sbitmap_c_tests): New function.