Kaelyn Takata 7f0dccdbd8 Fix up MCFixup::getAccessVariant to handle unary expressions.
This allows correct relocations to be generated for a symbolic
address that is being adjusted by a negative constant. Since r204294,
such expressions have triggered undefined behavior when LLVM was built
without assertions.

Credit goes to Rafael for this patch; I'm submitting it on his behalf
as he is on vacation this week.

llvm-svn: 206192
2014-04-14 16:50:22 +00:00
..