llvm/test/Linker/Inputs/pr22807.ll - third_party/llvm-project - Git at Google

 %struct.A = type { %struct.B }
 %struct.B = type opaque

 @g = external global %struct.A
	%struct.A = type { %struct.B }
	%struct.B = type opaque

	@g = external global %struct.A