Invalid argument "0" to instruction: output_int when compiling GC_test

[ssc...@bu.edu]

Hi all,

With a fresh installation and 2-party configuration of SCALE-MAMBA, I am getting the attached error when trying to compile the included Programs/GC_test.  I believe this is failing when calling e.g. line 37, k[1].public_output(), which is trying to write to the default Channel 0.  This should be allowed as far as I can tell from the documentation, plus this is code that  was provided.  The public_output() function seems to work fine in line 48 of Programs/IO_demo, which compiles and runs without a problem.  What is going wrong here?

Thanks!

Sarah

[ root@c3e106373600:~/SCALE-MAMBA ]# ./compile.sh Programs/GC_test
Running
         ./compile-mamba.py -A -n -r -u -s Programs/GC_test

Compiling program in Programs/GC_test
GC_test
p = 2148728833
Prime size: 32
Default bit length: 24
Default statistical security parameter: 6
Under Over Flow flag:  True
Compiling file Programs/GC_test/GC_test.mpc
Compiling basic block GC_test-0--0
Traceback (most recent call last):
  File "./compile-mamba.py", line 78, in <module>
    main()
  File "./compile-mamba.py", line 75, in main
    compilation()
  File "./compile-mamba.py", line 60, in compilation
    debug=options.debug)
  File "/root/SCALE-MAMBA/Compiler/compilerLib.py", line 40, in run
    execfile(prog.infile, VARS)
  File "Programs/GC_test/GC_test.mpc", line 37, in <module>
    k[1].public_output()
  File "/root/SCALE-MAMBA/Compiler/types.py", line 62, in vectorized_operation
    res = operation(self, *args, **kwargs)
  File "/root/SCALE-MAMBA/Compiler/types.py", line 626, in public_output
    output_int(self, channel);
  File "/root/SCALE-MAMBA/Compiler/instructions_base.py", line 386, in maybe_vectorized_instruction
    return instruction(*args, **kwargs)
  File "/root/SCALE-MAMBA/Compiler/instructions_base.py", line 542, in __init__
    self.check_args()
  File "/root/SCALE-MAMBA/Compiler/instructions_base.py", line 584, in check_args
    % (e.arg, self) + '\n' + e.msg)
Compiler.exceptions.CompilerError: Invalid argument "0" to instruction: output_int r4, 0
Invalid register argument

[Nigel Smart]

Hi

I think I know what the bug is. Have no time to fix it
this week. Hopefully next week sometime

Nigel

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Nigel Smart

[Nigel Smart]

Was easier to fix than expected. Take a new pull and try again