[PATCH] [OPENMP] CodeGen for "omp atomic read [seq_cst]" directive.

[John McCall]

If GCC always surrounds accesses in a global lock from the OpenMP runtime, then you will need to do the same in clang for compatibility unless you've decided not to care about GCC compatibility.  I guess you could provide some sort of -fno-openmp-gcc-compatibility flag if you want.


http://reviews.llvm.org/D6431

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