[PATCH] D102748: [LoopUnroll] Don't unroll before vectorisation

[Nikita Popov via Phabricator via llvm-commits]

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The full unroll pass during function simplification is quite important for certain code patterns and serves a completely different purpose than the runtime unrolling that happens late in the pipeline. It is critical that full unrolling happens relatively early, so that scalar optimizations have a chance to work on the fully unrolled loop.


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