1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Support/APFloat.cpp b/llvm/lib/Support/APFloat.cpp
index ada392c519b..a8e14d6c08b 100644
--- a/llvm/lib/Support/APFloat.cpp
+++ b/llvm/lib/Support/APFloat.cpp
@@ -3984,6 +3984,8 @@ APFloat llvm::scalbn(APFloat X, int Exp, APFloat::roundingMode RoundingMode) {
   // Clamp to one past the range ends to let normalize handle overlflow.
   X.exponent += std::min(std::max(Exp, -MaxIncrement - 1), MaxIncrement);
   X.normalize(RoundingMode, lfExactlyZero);
+  if (X.isNaN())
+    X.makeQuiet();
   return X;
 }