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

[Florian Hahn via llvm-commits]

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@@ -30,6 +31,7 @@
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/Transforms/Utils/LoopUtils.h"
 #include "llvm/Transforms/Utils/ScalarEvolutionExpander.h"
+#include "llvm/Transforms/Vectorize/LoopVectorizationLegality.h"
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fhahn wrote:

Might be better to define HistogramInfo in VPlan.h instead of pulling `LoopVectorizationLegality.h` in here, as VPlanRecipes.cpp should not depend/rely on LVL

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