@Override
	public boolean evaluateDestination(VarnodeContext context, Instruction instruction) {
		FlowType flowType = instruction.getFlowType();
		if (!flowType.isJump()) {
			return false;
		}

		/**
		 * For jump targets, that have no computed reference, add the jump location to a set
		 * to evaluate as a potential switch statement.
		 */
		Reference[] refs = instruction.getReferencesFrom();
		if (refs.length <= 0 || (refs.length == 1 && refs[0].getReferenceType().isData())) {
			destSet.addRange(instruction.getMinAddress(), instruction.getMinAddress());
		}
		return false;
	}
Add instructions to destination set for unknown computed branches.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/analysis/ConstantPropagationContextEvaluator.java