diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
--- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -961,7 +961,7 @@
       // VECTOR [numelts, eltty] or
       //        [numelts, eltty, scalable]
       Code = bitc::TYPE_CODE_VECTOR;
-      TypeVals.push_back(VT->getNumElements());
+      TypeVals.push_back(VT->getElementCount().Min);
       TypeVals.push_back(VE.getTypeID(VT->getElementType()));
       if (isa<ScalableVectorType>(VT))
         TypeVals.push_back(true);