[Bug middle-end/63762] [ARM]GCC generates UNPREDICTABLE STR with Rn = Rt when hard-float abi is used

[renlin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63762

--- Comment #8 from renlin at gcc dot gnu.org ---
Author: renlin
Date: Wed Dec  3 11:13:50 2014
New Revision: 218306

URL: https://gcc.gnu.org/viewcvs?rev=218306&root=gcc&view=rev
Log:
Backported from mainline

gcc/

2014-12-03  Renlin Li  <renlin...@arm.com>

    PR middle-end/63762
    PR target/63661
    * ira.c (i386ra): Update preferred class.

gcc/testsuite/

2014-12-03  Renlin Li  <renlin...@arm.com>
        H.J. Lu <hongjiu...@intel.com>

    PR middle-end/63762
    PR target/63661
    * gcc.dg/pr63762.c: New test.
    * gcc.target/i386/pr63661.c: New test.

Added:
    branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr63762.c
    branches/gcc-4_9-branch/gcc/testsuite/gcc.target/i386/pr63661.c
Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/ira.c
    branches/gcc-4_9-branch/gcc/testsuite/ChangeLog