Repeat processing all basic blocks for vzeroupper optimization.
gcc/
2010-12-30 H.J. Lu <hongjiu.lu@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.lu@intel.com>
PR target/46519
* gfortran.dg/pr46519-2.f90: New.
From-SVN: r168342