Unable to compile FT fft_cpx (element type does not match old type)

[hv15]

Problem

I get the following error when compiling it:

$ sac2c_d -target seq -v0 -O3 -maxlur 3 -trace m -linksetsize 500 -L ~/git/sac/nas_parallel_benchmarks/build/lib -T ~/git/sac/nas_parallel_benchmarks/build/lib -DMOP -o fft_cpx-seq ~/git/sac/nas_parallel_benchmarks/FT/fft_cpx.sac

Internal compiler error
Program reached impossible state at ~/git/sac/sac2c/src/libsac2c/typecheck/elim_alpha_types.c:433 -- new element type `double[*]' of array `t' does not match old type `double[+]' on the left hand side

Setup details

• sac2c version sac2c 1.2-beta-BlackForest-685-ge2298-dirty (based on bodo-emr)
• latest StdLib

Additional

• I've attached the output of -bpopt:des (see break_after_popt-des.txt)
• compiling with -noprelude makes no difference.