[llvm] [VPlan] Add VPSingleDefBundleRecipe, replacing extended reduction recipes. (PR #144281)

[Florian Hahn via llvm-commits]

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@@ -525,14 +525,13 @@ class VPSingleDefRecipe : public VPRecipeBase, public VPValue {
 
   static inline bool classof(const VPRecipeBase *R) {
     switch (R->getVPDefID()) {
+    case VPRecipeBase::VPBundleSC:
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fhahn wrote:

Thanks, updated to VPExpressionRecipe, which is also slightly more compact. Tried to update various places refering to bundle as appropriate, just keeping `unbundle`.

https://github.com/llvm/llvm-project/pull/144281