Index: test/TableGen/GlobalISelEmitter.td
===================================================================
--- test/TableGen/GlobalISelEmitter.td
+++ test/TableGen/GlobalISelEmitter.td
@@ -138,6 +138,8 @@
 // CHECK-NEXT:      return false;
 // CHECK-NEXT:    if (!MI0->getOperand(1).isReg())
 // CHECK-NEXT:      return false;
+// CHECK-NEXT:    if (TRI.isPhysicalRegister(MI0->getOperand(1).getReg()))
+// CHECK-NEXT:      return false;
 // CHECK-NEXT:    MachineInstr *MI1 = MRI.getVRegDef(MI0->getOperand(1).getReg());
 // CHECK-NEXT:    if (!MI1 || MI1->getNumOperands() < 3)
 // CHECK-NEXT:      return false;
@@ -180,6 +182,8 @@
 // CHECK-NEXT:      return false;
 // CHECK-NEXT:    if (!MI0->getOperand(2).isReg())
 // CHECK-NEXT:      return false;
+// CHECK-NEXT:    if (TRI.isPhysicalRegister(MI0->getOperand(2).getReg()))
+// CHECK-NEXT:      return false;
 // CHECK-NEXT:    MachineInstr *MI1 = MRI.getVRegDef(MI0->getOperand(2).getReg());
 // CHECK-NEXT:    if (!MI1 || MI1->getNumOperands() < 3)
 // CHECK-NEXT:      return false;
Index: utils/TableGen/GlobalISelEmitter.cpp
===================================================================
--- utils/TableGen/GlobalISelEmitter.cpp
+++ utils/TableGen/GlobalISelEmitter.cpp
@@ -776,6 +776,8 @@
   void emitCxxCaptureStmts(raw_ostream &OS, RuleMatcher &Rule,
                            StringRef OperandExpr) const override {
     OS << "if (!" << OperandExpr + ".isReg())\n"
+       << "  return false;\n"
+       << "if (TRI.isPhysicalRegister(" << OperandExpr + ".getReg()))\n"
        << "  return false;\n";
     std::string InsnVarName = Rule.defineInsnVar(
         OS, *InsnMatcher,