diff --git a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
--- a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
@@ -207,7 +207,7 @@
         if (CN->isZero())
           return true;
       if (auto CN = dyn_cast<ConstantFPSDNode>(Opnd0))
-        if (CN->isZero())
+        if (CN->isZero() && !CN->isNegative())
           return true;
       break;
     }