[Bug tree-optimization/61634] [4.8/4.9/5 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Nov 27 09:33:32 2014
New Revision: 218113

URL: https://gcc.gnu.org/viewcvs?rev=218113&root=gcc&view=rev
Log:
2014-11-27  Richard Biener  <rguent...@suse.de>

    PR tree-optimization/61634
    * tree-vect-slp.c: Include gimple-walk.h.
    (vect_detect_hybrid_slp_stmts): Rewrite to propagate hybrid
    down the SLP tree for one scalar statement.
    (vect_detect_hybrid_slp_1): New walker function.
    (vect_detect_hybrid_slp_2): Likewise.
    (vect_detect_hybrid_slp): Properly handle pattern statements
    in a pre-scan over all loop stmts.

    * gcc.dg/vect/pr61634.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr61634.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-slp.c