Reid Kleckner f1b9f3a23f [WinASan] Fix hotpatching new Win 10 build 1703 x64 strnlen prologue ...

The first instruction of the new ucrtbase!strnlen implementation loads a
global, presumably to dispatch between SSE and non-SSE optimized strnlen
implementations.

Fixes PR32895 and probably
https://github.com/google/sanitizers/issues/818

llvm-svn: 305581

2017-06-16 20:44:00 +00:00

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