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(parent: fdf67fc) | patch
Short circuit if upper 128bits are unchanged in the block.
authorhjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 30 Dec 2010 13:13:13 +0000 (13:13 +0000)
committerhjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 30 Dec 2010 13:13:13 +0000 (13:13 +0000)
commit36c0883dab504b37e37e40f2ddb1c514753d2434
treecb3749fa5d94b46c7f0e186eda5b55231ff8e7catree | snapshot
parentfdf67fc90190fa602bc7958c71c680af74002f63commit | diff
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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@168343 138bc75d-0d04-0410-961f-82ee72b054a4
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