John McCall 07bb19667a Simplify some complex emission and implement correct semantics for ...

assignment to volatiles in C.  This in effect reverts some of mjs's
work in and around r72572.  Basically, the C++ standard is quite
clear, except that it lies about volatile behavior approximating
C's, whereas the C standard is almost actively misleading.

llvm-svn: 119344

2010-11-16 10:08:07 +00:00

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