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r168343 - in /trunk/gcc: ChangeLog config/i386/...
- From: hjl at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Thu, 30 Dec 2010 13:13:13 -0000
- Subject: r168343 - in /trunk/gcc: ChangeLog config/i386/...
Author: hjl
Date: Thu Dec 30 13:13:13 2010
New Revision: 168343
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168343
Log:
Short circuit if upper 128bits are unchanged in the block.
2010-12-30 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (upper_128bits_state): Remove comments.
(block_info_def): Add unchanged.
(move_or_delete_vzeroupper_2): Short circuit if upper 128bits
are unchanged in the block.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c