| commit | 50da97cb15b2a0b30ec4c64ecf73c1d96939b580 | |
| author | wilco <wilco@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 22 Mar 2017 17:51:12 +0000 (22 17:51 +0000) | ||
| committer | wilco <wilco@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 22 Mar 2017 17:51:12 +0000 (22 17:51 +0000) | ||
| tree | 01fbece878beaa3b38ecf586e77ca0b209da9464 | treesnapshot (tar.gz zip) |
| parent | e5cdce14a1687931cc4691f02bd7f2286c809c21 | commitdiff |
Many supported cores implement fusion of AES instructions. When fusion
happens it can give a significant performance gain. If not, scheduling
fusion candidates next to each other has almost no effect on performance.
Due to the high benefit/low cost it makes sense to enable AES fusion with
-mcpu=generic so that cores that support it always benefit.
gcc/
* config/aarch64/aarch64.c (generic_tunings): Add AES fusion.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@246395 138bc75d-0d04-0410-961f-82ee72b054a4
happens it can give a significant performance gain. If not, scheduling
fusion candidates next to each other has almost no effect on performance.
Due to the high benefit/low cost it makes sense to enable AES fusion with
-mcpu=generic so that cores that support it always benefit.
gcc/
* config/aarch64/aarch64.c (generic_tunings): Add AES fusion.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@246395 138bc75d-0d04-0410-961f-82ee72b054a4
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| gcc/config/aarch64/aarch64.c | diffblobblamehistory |