| commit | e28e9b1ec40d5b545d980b0a36cbe41f3d1dbf6a | |
| author | H.J. Lu <hjl.tools@gmail.com> | |
| Mon, 21 May 2018 23:54:46 +0000 (21 16:54 -0700) | ||
| committer | H.J. Lu <hjl.tools@gmail.com> | |
| Mon, 21 May 2018 23:54:59 +0000 (21 16:54 -0700) | ||
| tree | 7fe0767441c477a36fe4d7aeb2caf17e7c45c18a | treesnapshot (tar.gz zip) |
| parent | 1af30adcd59fae929371d3a56b239861b1088a6e | commitdiff |
x86-64: Check Prefer_FSRM in ifunc-memmove.h
Although the REP MOVSB implementations of memmove, memcpy and mempcpy
aren't used by the current processors, this patch adds Prefer_FSRM
check in ifunc-memmove.h so that they can be used in the future.
* sysdeps/x86/cpu-features.h (bit_arch_Prefer_FSRM): New.
(index_arch_Prefer_FSRM): Likewise.
* sysdeps/x86/cpu-tunables.c (TUNABLE_CALLBACK (set_hwcaps)):
Also check Prefer_FSRM.
* sysdeps/x86_64/multiarch/ifunc-memmove.h (IFUNC_SELECTOR):
Also return OPTIMIZE (erms) for Prefer_FSRM.
Although the REP MOVSB implementations of memmove, memcpy and mempcpy
aren't used by the current processors, this patch adds Prefer_FSRM
check in ifunc-memmove.h so that they can be used in the future.
* sysdeps/x86/cpu-features.h (bit_arch_Prefer_FSRM): New.
(index_arch_Prefer_FSRM): Likewise.
* sysdeps/x86/cpu-tunables.c (TUNABLE_CALLBACK (set_hwcaps)):
Also check Prefer_FSRM.
* sysdeps/x86_64/multiarch/ifunc-memmove.h (IFUNC_SELECTOR):
Also return OPTIMIZE (erms) for Prefer_FSRM.
| ChangeLog | diffblobblamehistory | |
| sysdeps/x86/cpu-features.h | diffblobblamehistory | |
| sysdeps/x86/cpu-tunables.c | diffblobblamehistory | |
| sysdeps/x86_64/multiarch/ifunc-memmove.h | diffblobblamehistory |