ValueLattice.cpp

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//===- ValueLattice.cpp - Value constraint analysis -------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include "llvm/Analysis/ValueLattice.h"

namespace llvm {
raw_ostream &operator<<(raw_ostream &OS, const ValueLatticeElement &Val) {
  if (Val.isUndefined())
    return OS << "undefined";
  if (Val.isOverdefined())
    return OS << "overdefined";

  if (Val.isNotConstant())
    return OS << "notconstant<" << *Val.getNotConstant() << ">";
  if (Val.isConstantRange())
    return OS << "constantrange<" << Val.getConstantRange().getLower() << ", "
              << Val.getConstantRange().getUpper() << ">";
  return OS << "constant<" << *Val.getConstant() << ">";
}
} // end namespace llvm