[Bug target/70355] [5/6 Regression] ICE: in simplify_subreg_concatn, at lower-subreg.c:617 with -funroll-loops -mavx512f

[rth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70355

--- Comment #3 from Richard Henderson <rth at gcc dot gnu.org> ---
Author: rth
Date: Tue Mar 29 15:19:00 2016
New Revision: 234524

URL: https://gcc.gnu.org/viewcvs?rev=234524&root=gcc&view=rev
Log:
PR middle-end/70355

  * lower-subreg.c (simplify_subreg_concatn): Reject paradoxical subregs.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr70355.c
    trunk/gcc/testsuite/gcc.target/i386/pr70355.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lower-subreg.c