[llvm] [LAA] Add stencil group merging to reduce runtime pointer checks (PR #187252)

[David Sherwood via llvm-commits]

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@@ -1079,8 +1107,10 @@ collectCandidateMembers(ArrayRef<StencilDecomposition> Offsets, bool ForMin) {
 static std::pair<unsigned, unsigned> computeStencilMergeCost(
     const RuntimePointerChecking &RtCheck, ArrayRef<unsigned> GroupIndices,
     const SmallDenseSet<unsigned, 4> &MergedGroupIndices,
-    ArrayRef<const SCEV *> LocalStridesNeedingPreds,
-    const SmallDenseSet<const SCEV *, 4> &CommittedStridePredicates,
+    ArrayRef<const SCEV *> LocalStrideLowerLimits,
+    const SmallMapVector<const SCEV *, APInt, 4> &LocalStrideUpperLimits,
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david-arm wrote:

Why is this not passed as an ArrayRef the same as `LocalStrideLowerLimits`? It looks like it doesn't need modifying.

https://github.com/llvm/llvm-project/pull/187252