diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index f0da0d8..e816da8 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -119,8 +119,7 @@
 
   MIRBuilder.setInstrAndDebugLoc(MI);
 
-  if (MI.getOpcode() == TargetOpcode::G_INTRINSIC ||
-      MI.getOpcode() == TargetOpcode::G_INTRINSIC_W_SIDE_EFFECTS)
+  if (isa<GIntrinsic>(MI))
     return LI.legalizeIntrinsic(*this, MI) ? Legalized : UnableToLegalize;
   auto Step = LI.getAction(MI, MRI);
   switch (Step.Action) {