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diff --git a/lib/Transforms/Instrumentation/ValueProfilePlugins.inc b/lib/Transforms/Instrumentation/ValueProfilePlugins.inc
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+//=== ValueProfilePlugins.inc - set of plugins used by ValueProfileCollector =//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains a set of plugin classes used in ValueProfileCollectorImpl.
+// Each plugin is responsible for collecting Value Profiling candidates for a
+// particular optimization.
+// Each plugin must satisfy the interface described in ValueProfileCollector.cpp
+//
+//===----------------------------------------------------------------------===//
+
+#include "ValueProfileCollector.h"
+#include "llvm/Analysis/IndirectCallVisitor.h"
+#include "llvm/IR/InstVisitor.h"
+
+using namespace llvm;
+using CandidateInfo = ValueProfileCollector::CandidateInfo;
+
+///--------------------------- MemIntrinsicPlugin ------------------------------
+class MemIntrinsicPlugin : public InstVisitor<MemIntrinsicPlugin> {
+  Function &F;
+  std::vector<CandidateInfo> *Candidates;
+
+public:
+  static constexpr InstrProfValueKind Kind = IPVK_MemOPSize;
+
+  MemIntrinsicPlugin(Function &Fn) : F(Fn), Candidates(nullptr) {}
+
+  void run(std::vector<CandidateInfo> &Cs) {
+    Candidates = &Cs;
+    visit(F);
+    Candidates = nullptr;
+  }
+  void visitMemIntrinsic(MemIntrinsic &MI) {
+    Value *Length = MI.getLength();
+    // Not instrument constant length calls.
+    if (dyn_cast<ConstantInt>(Length))
+      return;
+
+    Instruction *InsertPt = &MI;
+    Instruction *AnnotatedInst = &MI;
+    Candidates->emplace_back(CandidateInfo{Length, InsertPt, AnnotatedInst});
+  }
+};
+
+///------------------------ IndirectCallPromotionPlugin ------------------------
+class IndirectCallPromotionPlugin {
+  Function &F;
+
+public:
+  static constexpr InstrProfValueKind Kind = IPVK_IndirectCallTarget;
+
+  IndirectCallPromotionPlugin(Function &Fn) : F(Fn) {}
+
+  void run(std::vector<CandidateInfo> &Candidates) {
+    std::vector<Instruction *> Result = findIndirectCalls(F);
+    for (Instruction *I : Result) {
+      Value *Callee = CallSite(I).getCalledValue();
+      Instruction *InsertPt = I;
+      Instruction *AnnotatedInst = I;
+      Candidates.emplace_back(CandidateInfo{Callee, InsertPt, AnnotatedInst});
+    }
+  }
+};
+
+///----------------------- Registration of the plugins -------------------------
+/// For now, registering a plugin with the ValueProfileCollector is done by
+/// adding the plugin type to the VP_PLUGIN_LIST macro.
+#define VP_PLUGIN_LIST           \
+    MemIntrinsicPlugin,          \
+    IndirectCallPromotionPlugin