[Bug target/46519] Missing vzeroupper

[hjl at gcc dot gnu.org]

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

--- Comment #8 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2011-01-24 
17:30:00 UTC ---
Author: hjl
Date: Mon Jan 24 17:29:58 2011
New Revision: 169173

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169173
Log:
Visit basic blocks using the work-list based algorithm.

2011-01-24  H.J. Lu  <hongjiu...@intel.com>

    PR target/46519
    * config/i386/i386.c: Include sbitmap.h and fibheap.h.
    (block_info): Add scanned and prev.
    (move_or_delete_vzeroupper_2): Return if the basic block
    has been scanned and the upper 128bit state is unchanged
    from the last scan.
    (move_or_delete_vzeroupper_1): Return true if the exit
    state is changed.
    (move_or_delete_vzeroupper): Visit basic blocks using the
    work-list based algorithm based on vt_find_locations in
    var-tracking.c.

    * config/i386/t-i386: Also depend on sbitmap.h and $(FIBHEAP_H).

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/t-i386