llvm-project

933f4924 - [LAA] Support different strides & non constant dep distances using SCEV. (#88039)

[LAA] Support different strides & non constant dep distances using SCEV. (#88039) Extend LoopAccessAnalysis to support different strides and as a consequence non-constant distances between dependences using SCEV to reason about the direction of the dependence. In multiple places, logic to rule out dependences using the stride has been updated to only be used if StrideA == StrideB, i.e. there's a common stride. We now also may bail out at multiple places where we may have to set FoundNonConstantDistanceDependence. This is done when we need to bail out and the distance is not constant to preserve original behavior. Fixes https://github.com/llvm/llvm-project/issues/87336 PR: https://github.com/llvm/llvm-project/pull/88039