diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 3fc2154765406d..022efc609e481c 100644
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -6154,7 +6154,7 @@ bool TargetLowering::expandUINT_TO_FP(SDNode *Node, SDValue &Result,
       return false;
 
     // For unsigned conversions, convert them to signed conversions using the
-    // algorithm from the x86_64 __floatundidf in compiler_rt.
+    // algorithm from the x86_64 __floatundisf in compiler_rt.
 
     // TODO: This really should be implemented using a branch rather than a
     // select.  We happen to get lucky and machinesink does the right