[ConstantRange] Add LLVM_NODISCARD to ConstantRange since a large number of its metho...

llvm-svn: 302194

diff --git a/llvm/include/llvm/IR/ConstantRange.h b/llvm/include/llvm/IR/ConstantRange.h
index fd7f96a..e200e96 100644 (file)
--- a/llvm/include/llvm/IR/ConstantRange.h
+++ b/llvm/include/llvm/IR/ConstantRange.h
@@ -41,7 +41,7 @@ namespace llvm {
 class MDNode;
 
 /// This class represents a range of values.
-class ConstantRange {
+class LLVM_NODISCARD ConstantRange {
   APInt Lower, Upper;
 
 public: