[Bug tree-optimization/53185] [4.8 Regression] segmentation fault in vectorizable_load

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53185

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> 2013-02-05 15:33:48 UTC ---
Author: rguenth
Date: Tue Feb  5 15:33:35 2013
New Revision: 195759

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195759
Log:
2013-02-05  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/53342
    PR tree-optimization/53185
    * tree-vectorizer.h (vect_check_strided_load): Remove.
    * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Do
    not disallow peeling for vectorized strided loads.
    (vect_check_strided_load): Make static and simplify.
    (vect_analyze_data_refs): Adjust.
    * tree-vect-stmts.c (vectorizable_load): Handle peeled loops
    correctly when vectorizing strided loads.

    * gcc.dg/vect/pr53185-2.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr53185-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-data-refs.c
    trunk/gcc/tree-vect-stmts.c
    trunk/gcc/tree-vectorizer.h