[Bug target/46519] Missing vzeroupper

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46519

--- Comment #7 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2010-12-30 
13:12:05 UTC ---
Author: hjl
Date: Thu Dec 30 13:12:02 2010
New Revision: 168342

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168342
Log:
Repeat processing all basic blocks for vzeroupper optimization.

gcc/

2010-12-30  H.J. Lu  <hongjiu...@intel.com>

    PR target/46519
    * config/i386/i386.c (block_info_def): Remove referenced, count
    and rescanned.
    (move_or_delete_vzeroupper_2): Updated.
    (move_or_delete_vzeroupper_1): Rewritten to avoid recursive call.
    (rescan_move_or_delete_vzeroupper): Removed.
    (move_or_delete_vzeroupper): Repeat processing all basic blocks
    until no basic block state is changed to used at exit.

gcc/testsuite/

2010-12-30  H.J. Lu  <hongjiu...@intel.com>

    PR target/46519
    * gfortran.dg/pr46519-2.f90: New.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr46519-2.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog