[Bug rtl-optimization/37782] [4.4 regression] Stage2 ada compiler miscompiled

["jsm28 at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37782

--- Comment #15 from Joseph S. Myers <jsm28 at gcc dot gnu.org> 2012-01-10 23:53:20 UTC ---
Author: jsm28
Date: Tue Jan 10 23:53:13 2012
New Revision: 183080

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183080
Log:
    Revert:

    2008-09-18  Andrew Pinski  <andrew_pinski@playstation.sony.com>

    PR rtl-opt/37451
    * loop-doloop.c (doloop_modify): New argument zero_extend_p and
    zero extend count after the correction to it is done.
    (doloop_optimize): Update call to doloop_modify, don't zero extend
    count before call.

    2008-11-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>

    PR rtl-opt/37782
    * loop-doloop.c (doloop_modify): Add from_mode argument that says what
    mode count is in.
    (doloop_optimize): Update call to doloop_modify.

testsuite:
    * gcc.c-torture/execute/doloop-1.c,
    gcc.c-torture/execute/doloop-2.c: New tests.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.c-torture/execute/doloop-1.c
    branches/gcc-4_5-branch/gcc/testsuite/gcc.c-torture/execute/doloop-2.c
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/loop-doloop.c
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog