Useful observations, Oleg. I had suspected optimization might be involved. It
looks like this bug involving constant indices might be easy to fix and also
easy to work around. I guess one workaround is to use hidden nentry objects
that the optimizer will not see as constant.
Nevertheless, I also encounter difficulties when using variable indices.
Consider the case of using gate signals to control recording and playback. This
example alternately records and then plays back repeatedly.
import ("stdfaust.lib");
ramp = * ~ + (1);
sampler(tableSize, play, record) =
rwtable(tableSize, 0, play : ramp, _, record : ramp);
process = x : sampler(tableSize, play, record)
with {
tableSize = 1024;
gate = ba.pulsen(512, 2048);
record = gate;
play = gate @ 1024;
x = os.osc(55);
};
The output is mostly zero with some very short, sparse pulses.
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