sim fails with generate-interface=INFER

[SerenaC94]

I have more than one kernel failing simulation at the moment, but in the archive I isolated a small-ish example. The files to reproduce the error are attached in durbin.zip, the command I used was

bambu durbin.ll --compiler=I386_CLANG11 --simulate --generate-tb=test.xml --top-fname=kernel_durbin --generate-interface=INFER --interface-xml-filename=durbin.c.interface.xml

I tried with both version b18944455e3ab3fdc72f81fcde2b2fb3dfa62168-fix/polybench_support and version 3472c99482e27bcd23273ac3817dd5e49caaa71e-dev/panda of bambu. In both cases by removing --generate-interface=INFER --interface-xml-filename=durbin.c.interface.xml the simulation works.