1 //===- CalledValuePropagation.h - Propagate called values -------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file implements a transformation that attaches !callees metadata to
11 // indirect call sites. For a given call site, the metadata, if present,
12 // indicates the set of functions the call site could possibly target at
13 // run-time. This metadata is added to indirect call sites when the set of
14 // possible targets can be determined by analysis and is known to be small. The
15 // analysis driving the transformation is similar to constant propagation and
16 // makes uses of the generic sparse propagation solver.
17 //
18 //===----------------------------------------------------------------------===//
19 
20 #ifndef LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H
21 #define LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H
22 
23 #include "llvm/IR/Module.h"
24 #include "llvm/IR/PassManager.h"
25 
26 namespace llvm {
27 
28 class CalledValuePropagationPass
29     : public PassInfoMixin<CalledValuePropagationPass> {
30 public:
31   PreservedAnalyses run(Module &M, ModuleAnalysisManager &);
32 };
33 } // namespace llvm
34 
35 #endif // LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H
36