--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/llvm/test/TableGen/intrinsic-long-name.td	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,34 @@
+// RUN: llvm-tblgen -gen-intrinsic-enums %s | FileCheck %s
+// XFAIL: vg_leak
+
+class IntrinsicProperty;
+class SDNodeProperty;
+
+class ValueType<int size, int value> {
+  string Namespace = "MVT";
+  int Size = size;
+  int Value = value;
+}
+
+class LLVMType<ValueType vt> {
+  ValueType VT = vt;
+}
+
+class Intrinsic<string name, list<LLVMType> param_types = []> {
+  string LLVMName = name;
+  bit isTarget = 0;
+  string TargetPrefix = "";
+  list<LLVMType> RetTypes = [];
+  list<LLVMType> ParamTypes = param_types;
+  list<IntrinsicProperty> IntrProperties = [];
+  list<SDNodeProperty> Properties = [];
+}
+
+def iAny : ValueType<0, 253>;
+def llvm_anyint_ty : LLVMType<iAny>;
+
+// Make sure we generate the long name without crashing
+// CHECK: this_is_a_really_long_intrinsic_name_but_we_should_still_not_crash,  // llvm.this.is.a.really.long.intrinsic.name.but.we.should.still.not.crash
+def int_foo : Intrinsic<"llvm.foo", [llvm_anyint_ty]>;
+def int_this_is_a_really_long_intrinsic_name_but_we_should_still_not_crash : Intrinsic<"llvm.this.is.a.really.long.intrinsic.name.but.we.should.still.not.crash", [llvm_anyint_ty]>;
+