}

	// One predecessor
	l0 := blockLocs[preds[0].ID]
	p0 := l0.endState
	if len(preds) == 1 {
		if previousBlock != nil && preds[0].ID != previousBlock.ID {
			// Change from previous block is its endState minus the predecessor's endState
			markChangedVars(blockLocs[previousBlock.ID].endState, p0)
		}
		locs.startState = p0
		blockChanged = blockChanged || l0.lastChangedTime > locs.lastCheckedTime
		reset(p0)

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