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Subject: [Bug rtl-optimization/37451] Extra addition for doloop in some cases
Date: Tue, 10 Jan 2012 23:54:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37451

--- Comment #9 from Joseph S. Myers <jsm28 at gcc dot gnu.org> 2012-01-10 23:53:19 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