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Status of llvm.invariant.{start|end}
2017 Oct 31
2
Status of llvm.invariant.{start|end}
> We at Azul have been using invariant.start for marking objects as immutable after a certain point. > Also, upstream changes to teach relevant optimizations about invariant.start and end were added > last year. > > With respect to store to load forwarding, this is handled in GVN. I think the test cases in test/Transforms/GVN/invariant.start.ll > handle what you’re looking for.