Comment #6 on issue 3846 by [email protected]: AVX really slow
https://code.google.com/p/v8/issues/detail?id=3846#c6
The following revision refers to this bug:
https://chromium.googlesource.com/v8/v8.git/+/d93c4d19f13736c0538f4f66ca4a4a08d0cab9ca
commit d93c4d19f13736c0538f4f66ca4a4a08d0cab9ca
Author: bmeurer <[email protected]>
Date: Tue Jan 27 09:59:18 2015
[x86] Disable AVX unless the operating system explicitly claims to support
it.
BUG=chromium:452033, v8:3846
LOG=y
[email protected]
Review URL: https://codereview.chromium.org/878063002
Cr-Commit-Position: refs/heads/master@{#26288}
[modify]
http://crrev.com/d93c4d19f13736c0538f4f66ca4a4a08d0cab9ca/src/base/cpu.cc
[modify]
http://crrev.com/d93c4d19f13736c0538f4f66ca4a4a08d0cab9ca/src/base/cpu.h
[modify]
http://crrev.com/d93c4d19f13736c0538f4f66ca4a4a08d0cab9ca/src/ia32/assembler-ia32.cc
[modify]
http://crrev.com/d93c4d19f13736c0538f4f66ca4a4a08d0cab9ca/src/x64/assembler-x64.cc
[modify]
http://crrev.com/d93c4d19f13736c0538f4f66ca4a4a08d0cab9ca/test/unittests/base/cpu-unittest.cc
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