xref: /freebsd/contrib/llvm-project/llvm/lib/Analysis/ValueLattice.cpp (revision 6966ac055c3b7a39266fb982493330df7a097997)
1 //===- ValueLattice.cpp - Value constraint analysis -------------*- C++ -*-===//
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 #include "llvm/Analysis/ValueLattice.h"
10 
11 namespace llvm {
12 raw_ostream &operator<<(raw_ostream &OS, const ValueLatticeElement &Val) {
13   if (Val.isUndefined())
14     return OS << "undefined";
15   if (Val.isOverdefined())
16     return OS << "overdefined";
17 
18   if (Val.isNotConstant())
19     return OS << "notconstant<" << *Val.getNotConstant() << ">";
20   if (Val.isConstantRange())
21     return OS << "constantrange<" << Val.getConstantRange().getLower() << ", "
22               << Val.getConstantRange().getUpper() << ">";
23   return OS << "constant<" << *Val.getConstant() << ">";
24 }
25 } // end namespace llvm
26