[llvm] [LV] Vectorize histogram operations (PR #99851)

[Florian Hahn via llvm-commits]

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@@ -1573,6 +1575,39 @@ class VPWidenCallRecipe : public VPSingleDefRecipe {
 #endif
 };
 
+class VPHistogramRecipe : public VPRecipeBase {
+  const HistogramInfo *Info;
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fhahn wrote:

can store by reference?

https://github.com/llvm/llvm-project/pull/99851