diff --git a/llvm/lib/IR/Constants.cpp b/llvm/lib/IR/Constants.cpp
--- a/llvm/lib/IR/Constants.cpp
+++ b/llvm/lib/IR/Constants.cpp
@@ -1518,6 +1518,22 @@
     return CV->getSplatValue();
   if (const ConstantVector *CV = dyn_cast<ConstantVector>(this))
     return CV->getSplatValue(AllowUndefs);
+
+  // Check if this is a constant expression splat of the form returned by
+  // ConstantVector::getSplat()
+  Constant *SplatVal = nullptr;
+  ConstantInt *Index = nullptr;
+
+  match(this,
+        m_Shuffle(m_InsertElt(m_Undef(), m_Constant(SplatVal), m_ConstantInt()),
+                  m_Undef()));
+
+  if (Index && Index->getValue() == 0) {
+    if (SplatVal) {
+      return SplatVal;
+    }
+  }
+
   return nullptr;
 }