[PATCH] D146128: [SVE][LoopVectorize] Add option to disable tail-folding for reverse loops

[David Sherwood via Phabricator via llvm-commits]

david-arm marked an inline comment as done.
david-arm added a comment.

In D146128#4198864 <https://reviews.llvm.org/D146128#4198864>, @dmgreen wrote:

> LoopVectorizationLegality::containsDecreasingPointers seems to loop over all the instructions and call isConsecutivePtr, which just calls getPtrStride. Could that logic just be placed in AArch64TTIImpl::preferPredicateOverEpilogue? That is how it has worked in ARMTTIImpl::preferPredicateOverEpilogue via canTailPredicateLoop. Otherwise the code in containsDecreasingPointers is ran for any architecture, but only used by AArch64.

Done!


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https://reviews.llvm.org/D146128