[RFC][llvm] Added llvm.loop.vectorize.reassociate_fpreductions.enable metadata. by vzakhari · Pull Request #141685 · llvm/llvm-project (original) (raw)
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[RFC][llvm] Added llvm.loop.vectorize.reassociation.enable metadata. [RFC][llvm] Added llvm.loop.vectorize.reassociate_fpreductions.enable metadata.
This metadata allows unsafe reassociations of computations during the loop vectorization. For example, it allows vectorizing loops with floating-point reductions without the need to compile the whole function/program with -fassociative-math.
