>>>>> "Thomas" == Thomas Quinot <qui...@adacore.com> writes:
Thomas> As for the size impact on line_map_ordinary, indeed that's an additional Thomas> int here, but I'm not sure we allocate so many objects of that kind that Thomas> the increase is significant. Could you please measure it? My guess is that it is worse than you think. Thomas> Now, an alternative might be to have an array of instance IDs stored at Thomas> the struct line_maps level, with the same indices at the set of ordinary Thomas> maps, which would be allocated only when flag_debug_instances is used; Thomas> when it is not used the cost would then be a single NULL pointer in Thomas> struct line_maps. Would that be acceptable? I thought there was already a similar approach in place. See location_adhoc_data. The proliferation of ways to do this is mildly worrying. Tom
