[Bug middle-end/52584] Fails to constant fold vector upper/lower half BIT_FIELD_REFs

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52584

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-03-14 
14:55:16 UTC ---
Author: rguenth
Date: Wed Mar 14 14:55:11 2012
New Revision: 185385

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185385
Log:
2012-03-14  Richard Guenther  <rguent...@suse.de>

    PR middle-end/52584
    * tree-vect-generic.c (type_for_widest_vector_mode): Take
    element type instead of mode, use build_vector_type_for_mode
    instead of the langhook, build a vector of proper signedness.
    (expand_vector_operations_1): Adjust.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-vect-generic.c