[Bug tree-optimization/62075] [4.8/4.9 Regression] Vectorizer ICE on dolphin

["rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62075

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Sep  9 11:42:34 2014
New Revision: 215059

URL: https://gcc.gnu.org/viewcvs?rev=215059&root=gcc&view=rev
Log:
2014-09-09  Richard Biener  <rguenther@suse.de>

    Backport from mainline
    2014-08-05  Richard Biener  <rguenther@suse.de>

    PR rtl-optimization/61672
    * emit-rtl.h (mem_attrs_eq_p): Declare.
    * emit-rtl.c (mem_attrs_eq_p): Export.  Handle NULL mem-attrs.
    * cse.c (exp_equiv_p): Use mem_attrs_eq_p.
    * cfgcleanup.c (merge_memattrs): Likewise.
    Include emit-rtl.h.

    2014-08-11  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/62075
    * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Properly
    handle uses in patterns.

    * gcc.dg/vect/pr62075.c: New testcase.

    2014-08-14  Richard Biener  <rguenther@suse.de>

    PR rtl-optimization/62079
    * recog.c (peephole2_optimize): If peep2_do_cleanup_cfg
    run cleanup_cfg.

    * g++.dg/pr62079.C: New testcase.


    2014-08-26  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/62175
    * tree-ssa-loop-niter.c (expand_simple_operations): Do not
    expand possibly trapping operations.

    * g++.dg/torture/pr62175.C: New testcase.

Added:
    branches/gcc-4_9-branch/gcc/testsuite/g++.dg/pr62079.C
    branches/gcc-4_9-branch/gcc/testsuite/g++.dg/torture/pr62175.C
    branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/vect/pr62075.c
Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/cfgcleanup.c
    branches/gcc-4_9-branch/gcc/cse.c
    branches/gcc-4_9-branch/gcc/emit-rtl.c
    branches/gcc-4_9-branch/gcc/recog.c
    branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_9-branch/gcc/tree-ssa-loop-niter.c
    branches/gcc-4_9-branch/gcc/tree-vect-slp.c