diff --git a/tools/clang/lib/AST/ExprConstant.cpp b/tools/clang/lib/AST/ExprConstant.cpp
index c24e44022f..fae94fbc96 100644
--- a/tools/clang/lib/AST/ExprConstant.cpp
+++ b/tools/clang/lib/AST/ExprConstant.cpp
@@ -3784,6 +3784,8 @@ static bool HandleIntrinsicCall(SourceLocation CallLoc, unsigned opcode,
     assert(Args.size() == 1 && "else call should be invalid");
     if (ArgValues[0].isInt()) {
       Result = ArgValues[0];
+      // The result of bitwise cast to uint will be unsigned.
+      Result.getInt().setIsSigned(false);
     }
     else if (ArgValues[0].isFloat()) {
       const bool isUnsignedTrue = true;