LLVM  10.0.0svn
IndirectCallVisitor.h
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1 //===-- IndirectCallVisitor.h - indirect call visitor ---------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements defines a visitor class and a helper function that find
10 // all indirect call-sites in a function.
11 
12 #ifndef LLVM_ANALYSIS_INDIRECTCALLVISITOR_H
13 #define LLVM_ANALYSIS_INDIRECTCALLVISITOR_H
14 
15 #include "llvm/IR/InstVisitor.h"
16 #include <vector>
17 
18 namespace llvm {
19 // Visitor class that finds all indirect call.
20 struct PGOIndirectCallVisitor : public InstVisitor<PGOIndirectCallVisitor> {
21  std::vector<Instruction *> IndirectCalls;
23 
24  void visitCallBase(CallBase &Call) {
25  if (Call.isIndirectCall())
26  IndirectCalls.push_back(&Call);
27  }
28 };
29 
30 // Helper function that finds all indirect call sites.
31 inline std::vector<Instruction *> findIndirectCalls(Function &F) {
33  ICV.visit(F);
34  return ICV.IndirectCalls;
35 }
36 } // namespace llvm
37 
38 #endif
Base class for instruction visitors.
Definition: InstVisitor.h:80
This class represents lattice values for constants.
Definition: AllocatorList.h:23
Base class for all callable instructions (InvokeInst and CallInst) Holds everything related to callin...
Definition: InstrTypes.h:1100
F(f)
bool isIndirectCall() const
Return true if the callsite is an indirect call.
void visit(Iterator Start, Iterator End)
Definition: InstVisitor.h:89
void visitCallBase(CallBase &Call)
std::vector< Instruction * > IndirectCalls
std::vector< Instruction * > findIndirectCalls(Function &F)