1 files changed, 16 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index d361bf4..b2d1406 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -4596,6 +4596,22 @@ void computeKnownFPClass(const Value *V, const APInt &DemandedElts,
           Known.knownNot(fcNan);
         break;
       }
+      case Intrinsic::exp:
+      case Intrinsic::exp2: {
+        Known.knownNot(fcNegative);
+        if ((InterestedClasses & fcNan) == fcNone)
+          break;
+
+        KnownFPClass KnownSrc;
+        computeKnownFPClass(II->getArgOperand(0), DemandedElts,
+                            InterestedClasses, KnownSrc, Depth + 1, Q, TLI);
+        if (KnownSrc.isKnownNeverNaN()) {
+          Known.knownNot(fcNan);
+          Known.SignBit = false;
+        }
+
+        break;
+      }
       case Intrinsic::arithmetic_fence: {
         computeKnownFPClass(II->getArgOperand(0), DemandedElts,
                             InterestedClasses, Known, Depth + 1, Q, TLI);