diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -391,7 +391,7 @@
   setBooleanContents(ZeroOrOneBooleanContent);
 
   if (Subtarget.hasStdExtV()) {
-    setBooleanVectorContents(ZeroOrOneBooleanContent);
+    setBooleanVectorContents(ZeroOrNegativeOneBooleanContent);
 
     setOperationAction(ISD::VSCALE, XLenVT, Custom);