1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp
index c5b12902949..7f3eb4107ff 100644
--- a/llvm/lib/CodeGen/TargetLoweringBase.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp
@@ -1332,8 +1332,11 @@ void TargetLoweringBase::computeRegisterProperties(
       MVT IntermediateVT;
       MVT RegisterVT;
       unsigned NumIntermediates;
-      NumRegistersForVT[i] = getVectorTypeBreakdownMVT(VT, IntermediateVT,
+      unsigned NumRegisters = getVectorTypeBreakdownMVT(VT, IntermediateVT,
           NumIntermediates, RegisterVT, this);
+      NumRegistersForVT[i] = NumRegisters;
+      assert(NumRegistersForVT[i] == NumRegisters &&
+             "NumRegistersForVT size cannot represent NumRegisters!");
       RegisterTypeForVT[i] = RegisterVT;
 
       MVT NVT = VT.getPow2VectorType();