[Bug middle-end/58970] [4.7/4.8/4.9 Regression] internal compiler error: in get_bit_range, at expr.c:4562

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58970

--- Comment #27 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Nov  6 07:48:50 2013
New Revision: 204444

URL: http://gcc.gnu.org/viewcvs?rev=204444&root=gcc&view=rev
Log:
    PR middle-end/58970
    * expr.c (get_bit_range): Handle *offset == NULL_TREE.
    (expand_assignment): If *bitpos is negative, set *offset
    and adjust *bitpos, so that it is not negative.

    * gcc.c-torture/compile/pr58970.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr58970-1.c
    trunk/gcc/testsuite/gcc.c-torture/compile/pr58970-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/expr.c
    trunk/gcc/testsuite/ChangeLog