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emitsimdlensafelenclause
2018 Jan 19
2
Does OpenMP hints bypass the vectorisation legality check in llvm
Hi all,
I am currently looking into how "#pragma omp for simd" is actually
recognized in llvm. To my knowledge, clang will parse it and set
metadata in IR to indicate this force-vectorization hint and later
optimization passes would read it and vectorize the marked loop.
Therefore, the loop should be vectorized even the compiler think it
might not be safe to do so?
So my