[Bug tree-optimization/66123] [4.8 Regression] Array of labels as values + ternary operator + pointer arithmetic = internal compiler error

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66123

--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Jun  3 13:50:11 2015
New Revision: 224081

URL: https://gcc.gnu.org/viewcvs?rev=224081&root=gcc&view=rev
Log:
2015-06-03  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2015-05-26  Michael Matz  <matz@suse.de>

        PR middle-end/66251
        * tree-vect-stmts.c (vect_create_vectorized_demotion_stmts): Always set
        STMT_VINFO_VEC_STMT, also with SLP.

        * gcc.dg/vect/pr66251.c: New test.

        2015-05-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/66251
        * tree-vect-stmts.c (vectorizable_conversion): Properly
        set STMT_VINFO_VEC_STMT even for the SLP case.

        * gfortran.fortran-torture/compile/pr66251.f90: New testcase.

        2015-03-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/65518
        * tree-vect-stmts.c (vectorizable_load): Reject single-element
        interleaving cases we generate absymal code for.

        * gcc.dg/vect/pr65518.c: New testcase.

        2015-05-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/66123
        * tree-ssa-dom.c (propagate_rhs_into_lhs): Check if we found
        a taken edge.

        * gcc.dg/torture/pr66123.c: New testcase.

        2015-05-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/66272
        Revert parts of
        2014-08-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/62031
        * tree-data-ref.c (dr_analyze_indices): Do not set
        DR_UNCONSTRAINED_BASE.
        (dr_may_alias_p): All indirect accesses have to go the
        formerly DR_UNCONSTRAINED_BASE path.
        * tree-data-ref.h (struct indices): Remove
        unconstrained_base member.
        (DR_UNCONSTRAINED_BASE): Remove.

        * gcc.dg/torture/pr66272.c: New testcase.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/torture/pr66123.c
    branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/torture/pr66272.c
    branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/vect/pr65518.c
    branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/vect/pr66251.c
   
branches/gcc-4_8-branch/gcc/testsuite/gfortran.fortran-torture/compile/pr66251.f90
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_8-branch/gcc/tree-data-ref.c
    branches/gcc-4_8-branch/gcc/tree-data-ref.h
    branches/gcc-4_8-branch/gcc/tree-ssa-dom.c
    branches/gcc-4_8-branch/gcc/tree-vect-stmts.c