disable assembly in header for msan=1

disable assembly in header for msan=1

GYP_DEFINES="target_arch=x64 msan=1" ./gyp_libyuv
ninja -j7 -C out/Release

R=impjdi@google.com
BUG=libyuv:575
Committed: https://chromium.googlesource.com/libyuv/libyuv/+/837aa1e2af6c3e7c9e1d6bc240052139c71d2b38

[impjdi, 2016-03-16 00:08:39]

lgtm

Thanks for preparing this!  I really appreciate this! :D

[fbarchard1, 2016-03-16 01:45:41]

Description was changed from

==========
disable assembly in header for msan=1

GYP_DEFINES="target_arch=x64 msan=1" ./gyp_libyuv
ninja -j7 -C out/Release

R=impjdi@google.com
BUG=libyuv:575
==========

to

==========
disable assembly in header for msan=1

GYP_DEFINES="target_arch=x64 msan=1" ./gyp_libyuv
ninja -j7 -C out/Release

R=impjdi@google.com
BUG=libyuv:575

Committed:
https://chromium.googlesource.com/libyuv/libyuv/+/837aa1e2af6c3e7c9e1d6bc2400...
==========

[fbarchard1, 2016-03-16 01:45:42]

Committed patchset #1 (id:1) manually as
837aa1e2af6c3e7c9e1d6bc240052139c71d2b38 (presubmit successful).

[wtc1, 2016-03-16 17:24:55]

wtc@google.com changed reviewers:
+ wtc@google.com

[wtc1, 2016-03-16 17:24:55]

LGTM. Thanks.

I verified you modified all the headers that test LIBYUV_DISABLE_X86.

https://codereview.chromium.org/1805683003/diff/1/include/libyuv/compare_row.h
File include/libyuv/compare_row.h (right):

https://codereview.chromium.org/1805683003/diff/1/include/libyuv/compare_row....
include/libyuv/compare_row.h:25: // MemorySanitizer does not support assembly
code yet. http://crbug.com/344505

Frank: do you know whether it's just inline assembly code in C/C++ files or all
assembly code (including the assembly code in .s/.S files) that MemorySanitizer
doesn't support?