------- Comment #6 from spop at gcc dot gnu dot org 2007-06-23 11:05 ------- Subject: Re: [4.3 Regression] Segmentation fault in build_classic_dist_vector_1() at tree-data-ref.c:2700
Okay. The fail is because one of the folds is not a constant as expected: MINUS_EXPR (unsigned int) bndstart_108(D) (unsigned int) (bndstart_108(D) + 1) = 0xffffffffffffffff MINUS_EXPR (unsigned int) i_434 + 1 (unsigned int) i_434 = 1 but when reversed, MINUS_EXPR (unsigned int) i_434 (unsigned int) i_434 + 1 = ~(unsigned int) i_434 + (unsigned int) i_434 the fold result is not an integer_cst, and that lead to the fail. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32461
