[cfe-dev] Linking libclang.dll out of memory with MSVC

[Zachary Turner via cfe-dev]

For at least a couple of months now, I have been seeing intermittent out of
memory errors when linking libclang.dll with MSVC.  I've seen this on
buildbots as well as my local workstation which has 64GB of memory.  I've
seen it with MSVC 2013 as well as MSVC 2015 Update 1.

Does anyone know what might have gone into cause this?  It's brought down
the LLDB buildbot pretty much permamently as all builds are now failing
with this.

At first it was happening only intermittently much like it happens on my
local workstation, but now that it's surfacing more often, I feel like it's
worth investigating.

First question: Is anyone else seeing this when building with MSVC?
Second question: Any ideas what might have happened in the past couple
months to trigger this or how to go about tracking down the cause?
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