[Bug rtl-optimization/87305] [9 Regression] Segfault in end_hard_regno in setup_live_pseudos_and_spill_after_risky_transforms on aarch64 big-endian

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87305

--- Comment #4 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Author: vmakarov
Date: Thu Jan 10 21:02:50 2019
New Revision: 267823

URL: https://gcc.gnu.org/viewcvs?rev=267823&root=gcc&view=rev
Log:
2019-01-10  Vladimir Makarov  <vmaka...@redhat.com>

        PR rtl-optimization/87305
        * lra-assigns.c
        (setup_live_pseudos_and_spill_after_risky_transforms): Check
        allocation for big endian pseudos used as paradoxical subregs and
        spill them if it is wrong.
        * lra-constraints.c (lra_constraints): Add a comment.

2019-01-10  Vladimir Makarov  <vmaka...@redhat.com>

        PR rtl-optimization/87305
        * gcc.target/aarch64/pr87305.c: New.


Added:
    trunk/gcc/testsuite/gcc.target/aarch64/pr87305.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-assigns.c
    trunk/gcc/lra-constraints.c
    trunk/gcc/testsuite/ChangeLog