Major After upgrade to 22.0 cannot compile old source file: compilers goes into endless loop and is killed by OOM.
Here is a minimal example:
-module(bug).
-export([titl/2]).
-record(mp4_media, {tracks = []}).
-record(mp4_track, {title}).
unzero(Bin) ->
Len = size(Bin) - 1,
case Bin of
<<Bin2:Len/binary, 0>> -> unzero(Bin2);
_ -> Bin
end.
titl(<<0, _Flags:24, N:32, Title1/binary>>, #mp4_media{tracks = Tracks} = Media) ->
if
N > 0 andalso N =< size(Tracks) ->
#mp4_track{} = Track = element(N,Tracks),
Tracks1 = setelement(N,Tracks,Track#mp4_track{title = unzero(Title1)}),
Media#mp4_media{tracks = Tracks1};
true ->
Media
end.
I compile it via: erlc bug.erl
It should be compiled in a 1-2 seconds, but on 22.0 compiler does not stops
