lib/Analysis/ValueLattice.cpp

   1 //===- ValueLattice.cpp - Value constraint analysis -------------*- 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 #include "llvm/Analysis/ValueLattice.h"
  11
  12 namespace llvm {
  13 raw_ostream &operator<<(raw_ostream &OS, const ValueLatticeElement &Val) {
  14   if (Val.isUndefined())
  15     return OS << "undefined";
  16   if (Val.isOverdefined())
  17     return OS << "overdefined";
  18
  19   if (Val.isNotConstant())
  20     return OS << "notconstant<" << *Val.getNotConstant() << ">";
  21   if (Val.isConstantRange())
  22     return OS << "constantrange<" << Val.getConstantRange().getLower() << ", "
  23               << Val.getConstantRange().getUpper() << ">";
  24   return OS << "constant<" << *Val.getConstant() << ">";
  25 }
  26 } // end namespace llvm