1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Support/APFloat.cpp b/lib/Support/APFloat.cpp
index 17f38918b3..0e3c619170 100644
--- a/lib/Support/APFloat.cpp
+++ b/lib/Support/APFloat.cpp
@@ -697,6 +697,13 @@ APFloat::operator=(const APFloat &rhs)
 }
 
 bool
+APFloat::isDenormal() const {
+  return isNormal() && (exponent == semantics->minExponent) &&
+         (APInt::tcExtractBit(significandParts(), 
+                              semantics->precision - 1) == 0);
+}
+
+bool
 APFloat::bitwiseIsEqual(const APFloat &rhs) const {
   if (this == &rhs)
     return true;