[Bug target/65647] [5 Regression] GCC won't stop when compile for armv6-m

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65647

--- Comment #3 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Author: vmakarov
Date: Sat Apr  4 14:35:59 2015
New Revision: 221867

URL: https://gcc.gnu.org/viewcvs?rev=221867&root=gcc&view=rev
Log:
2015-04-04  Vladimir Makarov  <vmakarov@redhat.com>

    PR target/65647
    * lra-int.h (LRA_MAX_REMATERIALIZATION_PASSES): New.  Add its
    value checking.
    (lra_rematerialization_iter): New.
    * lra.c (lra): Initialize lra_rematerialization_iter.
    Stop updating lra_constraint_new_regno_start after switching of
    inheritance and rematerialization.
    * lra-remat.c (lra_rematerialization_iter): New.
    (lra_remat): Add printing pass iteration.  Do rematerialization
    only first LRA_MAX_REMATERIALIZATION_PASSES iterations.

2015-04-04  Vladimir Makarov  <vmakarov@redhat.com>

    PR target/65647
    * gcc.target/arm/pr65647.c: New.


Added:
    trunk/gcc/testsuite/gcc.target/arm/pr65647.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-int.h
    trunk/gcc/lra-remat.c
    trunk/gcc/lra.c
    trunk/gcc/testsuite/ChangeLog