[llvm] [LV] Convert gather loads with invariant stride into strided loads (PR #147297)

[Mel Chen via llvm-commits]

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@@ -2796,6 +2796,26 @@ static VPRecipeBase *optimizeMaskToEVL(VPValue *HeaderMask,
     return new VPWidenLoadEVLRecipe(cast<VPWidenLoadRecipe>(CurRecipe),
                                     AdjustEndPtr(EndPtr), EVL, Mask);
 
+  if (auto *MI = dyn_cast<VPWidenMemIntrinsicRecipe>(&CurRecipe))
+    if (MI->getVectorIntrinsicID() == Intrinsic::experimental_vp_strided_load &&
+        match(MI->getMask(), m_RemoveMask(HeaderMask, Mask))) {
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Mel-Chen wrote:

61c1774644d531669ea7ced80c0ff7d2d980158b

https://github.com/llvm/llvm-project/pull/147297