Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/lib/Analysis/ValueLattice.cpp

@@ -0,0 +1,26 @@
+//===- 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