--- /dev/null
+++ libmalloc/libmalloc-657.60.21/tests/tmo_test_defs.h
@@ -0,0 +1,113 @@
+#ifndef __TMO_TEST_DEFS_H__
+#define __TMO_TEST_DEFS_H__
+
+#include <stdint.h>
+
+// Real TMO
+
+typedef void *test_voidpointer_t;
+
+#define TMO_TEST_STRUCTS_L1(action, block, f1, f2, f3, f4, f5, f6, f7) \
+	action(block, f1, f2, f3, f4, f5, f6, f7, uint64_t) \
+	action(block, f1, f2, f3, f4, f5, f6, f7, test_voidpointer_t)
+
+#define TMO_TEST_STRUCTS_L2(action, block, f1, f2, f3, f4, f5, f6) \
+	TMO_TEST_STRUCTS_L1(action, block, f1, f2, f3, f4, f5, f6, uint64_t) \
+	TMO_TEST_STRUCTS_L1(action, block, f1, f2, f3, f4, f5, f6, test_voidpointer_t)
+
+#define TMO_TEST_STRUCTS_L3(action, block, f1, f2, f3, f4, f5) \
+	TMO_TEST_STRUCTS_L2(action, block, f1, f2, f3, f4, f5, uint64_t) \
+	TMO_TEST_STRUCTS_L2(action, block, f1, f2, f3, f4, f5, test_voidpointer_t)
+
+#define TMO_TEST_STRUCTS_L4(action, block, f1, f2, f3, f4) \
+	TMO_TEST_STRUCTS_L3(action, block, f1, f2, f3, f4, uint64_t) \
+	TMO_TEST_STRUCTS_L3(action, block, f1, f2, f3, f4, test_voidpointer_t)
+
+#define TMO_TEST_STRUCTS_L5(action, block, f1, f2, f3) \
+	TMO_TEST_STRUCTS_L4(action, block, f1, f2, f3, uint64_t) \
+	TMO_TEST_STRUCTS_L4(action, block, f1, f2, f3, test_voidpointer_t)
+
+#define TMO_TEST_STRUCTS_L6(action, block, f1, f2) \
+	TMO_TEST_STRUCTS_L5(action, block, f1, f2, uint64_t) \
+	TMO_TEST_STRUCTS_L5(action, block, f1, f2, test_voidpointer_t)
+
+#define TMO_TEST_STRUCTS_L7(action, block, f1) \
+	TMO_TEST_STRUCTS_L6(action, block, f1, uint64_t) \
+	TMO_TEST_STRUCTS_L6(action, block, f1, test_voidpointer_t)
+
+#define FOREACH_TMO_TEST_STRUCT(action, block) \
+	TMO_TEST_STRUCTS_L7(action, block, uint64_t) \
+	TMO_TEST_STRUCTS_L7(action, block, test_voidpointer_t)
+
+#define DEFINE_TMO_TEST_STRUCT_TYPE(block, f1, f2, f3, f4, f5, f6, f7, f8) \
+	struct tmo_test_##f1##_##f2##_##_##f3##_##f4##_##f5##_##f6##_##f7##_##f8 { \
+		f1 m1; \
+		f2 m2; \
+		f3 m3; \
+		f4 m4; \
+		f5 m5; \
+		f6 m6; \
+		f7 m7; \
+		f8 m8; \
+		test_voidpointer_t p; \
+		uint8_t pad[440]; \
+	};
+
+FOREACH_TMO_TEST_STRUCT(DEFINE_TMO_TEST_STRUCT_TYPE, "")
+
+#define INVOKE_FOR_TMO_TEST_STRUCT_TYPE(block, f1, f2, f3, f4, f5, f6, f7, f8) \
+	block(struct tmo_test_##f1##_##f2##_##_##f3##_##f4##_##f5##_##f6##_##f7##_##f8);
+
+#define INVOKE_FOR_TMO_TEST_STRUCT_CPP_TYPE(block, f1, f2, f3, f4, f5, f6, f7, f8) \
+	block(tmo_test_##f1##_##f2##_##_##f3##_##f4##_##f5##_##f6##_##f7##_##f8);
+
+#define N_TMO_TEST_STRUCTS 256
+
+// Callsite TMO
+
+static volatile int dummy;
+
+// The dummy stores are to prevent all of the callsites from being the same
+// number of instructions apart, as that can make it through our scrambling of
+// the type descriptor and cause us to fail to distribute across the buckets as
+// intended
+#define _CALL_10(expr) \
+		(expr); \
+		(expr); \
+		dummy = 42; \
+		(expr); \
+		dummy = 42; \
+		dummy = 42; \
+		(expr); \
+		(expr); \
+		(expr); \
+		dummy = 42; \
+		(expr); \
+		(expr); \
+		(expr); \
+		(expr)
+
+#define CALL_100(expr) \
+		_CALL_10(expr); \
+		_CALL_10(expr); \
+		_CALL_10(expr); \
+		_CALL_10(expr); \
+		_CALL_10(expr); \
+		_CALL_10(expr); \
+		_CALL_10(expr); \
+		_CALL_10(expr); \
+		_CALL_10(expr); \
+		_CALL_10(expr)
+
+#define N_UNIQUE_CALLSITES 200
+
+// must match constant above
+#define CALL_N_CALLSITES(expr) \
+		CALL_100(expr); \
+		CALL_100(expr)
+
+// Swift TMO
+
+#define N_TEST_SWIFT_CLASSES 200
+
+#endif // __TMO_TEST_DEFS_H__