Introduce debugging symbols #915
@ -1675,7 +1675,23 @@ bb(_Name, Code) ->
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Blocks = lists:flatmap(fun split_calls/1, Blocks1),
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Labels = maps:from_list([ {Ref, I} || {I, {Ref, _}} <- with_ixs(Blocks) ]),
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BBs = [ set_labels(Labels, B) || B <- Blocks ],
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maps:from_list(BBs).
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maps:from_list(dbg_loc_filter(BBs)).
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%% Filter DBG_LOC instructions to keep one instruction per line
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dbg_loc_filter(BBs) ->
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dbg_loc_filter(BBs, [], [], sets:new()).
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dbg_loc_filter([], _, AllBlocks, _) ->
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lists:reverse(AllBlocks);
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dbg_loc_filter([{I, []} | Rest], AllOps, AllBlocks, DbgLocs) ->
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dbg_loc_filter(Rest, [], [{I, lists:reverse(AllOps)} | AllBlocks], DbgLocs);
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dbg_loc_filter([{I, [Op = {'DBG_LOC', _, _} | Ops]} | Rest], AllOps, AllBlocks, DbgLocs) ->
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case sets:is_element(Op, DbgLocs) of
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true -> dbg_loc_filter([{I, Ops} | Rest], AllOps, AllBlocks, DbgLocs);
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false -> dbg_loc_filter([{I, Ops} | Rest], [Op | AllOps], AllBlocks, sets:add_element(Op, DbgLocs))
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end;
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dbg_loc_filter([{I, [Op | Ops]} | Rest], AllOps, AllBlocks, DbgLocs) ->
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dbg_loc_filter([{I, Ops} | Rest], [Op | AllOps], AllBlocks, DbgLocs).
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%% -- Break up scode into basic blocks --
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