r169173 - in /trunk/gcc: ChangeLog config/i386/...

[hjl@gcc.gnu.org]

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.lu@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