1 files changed, 14 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineVerifier.cpp b/llvm/lib/CodeGen/MachineVerifier.cpp
index 727ce0af029..d23f6c8e547 100644
--- a/llvm/lib/CodeGen/MachineVerifier.cpp
+++ b/llvm/lib/CodeGen/MachineVerifier.cpp
@@ -1368,6 +1368,20 @@ void MachineVerifier::verifyPreISelGenericInstruction(const MachineInstr *MI) {
         break;
       }
     }
+    switch (IntrID) {
+    case Intrinsic::memcpy:
+      if (MI->getNumOperands() != 5)
+        report("Expected memcpy intrinsic to have 5 operands", MI);
+      break;
+    case Intrinsic::memmove:
+      if (MI->getNumOperands() != 5)
+        report("Expected memmove intrinsic to have 5 operands", MI);
+      break;
+    case Intrinsic::memset:
+      if (MI->getNumOperands() != 5)
+        report("Expected memset intrinsic to have 5 operands", MI);
+      break;
+    }
     break;
   }
   case TargetOpcode::G_SEXT_INREG: {