[Bug tree-optimization/50596] Problems in vectorization of condition expression

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50596

--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-10-25 
08:02:16 UTC ---
Author: jakub
Date: Tue Oct 25 08:02:08 2011
New Revision: 180424

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=180424
Log:
    PR tree-optimization/50596
    * tree-vect-stmts.c (vect_mark_relevant): Only use
    FOR_EACH_IMM_USE_FAST if lhs is SSA_NAME.
    (vectorizable_store): If is_pattern_stmt_p look through
    VIEW_CONVERT_EXPR on lhs.
    * tree-vect-patterns.c (check_bool_pattern, adjust_bool_pattern):
    Use unsigned type instead of signed.
    (vect_recog_bool_pattern): Optimize also stores into bool memory in
    addition to casts from bool to integral types.
    (vect_mark_pattern_stmts): If pattern_stmt already has vinfo
    created, don't create it again.

    * gcc.dg/vect/vect-cond-10.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/vect-cond-10.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-patterns.c
    trunk/gcc/tree-vect-stmts.c