[Bug rtl-optimization/71621] [7 Regression] ICE in assign_by_spills, at lra-assigns.c:1417 (error: unable to find a register to spill) w/ -O2 -mavx2 -ftree-vectorize

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71621

--- Comment #4 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Author: vmakarov
Date: Fri Jul  8 20:29:12 2016
New Revision: 238178

URL: https://gcc.gnu.org/viewcvs?rev=238178&root=gcc&view=rev
Log:
2016-07-08  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/71621
        * lra-constraints.c (process_alt_operands): Check combination of
        reg class and mode.

2016-07-08  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/71621
        * gcc.target/i386/pr71621-1.c: New.
        * gcc.target/i386/pr71621-2.c: New.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr71621-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr71621-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-constraints.c
    trunk/gcc/testsuite/ChangeLog