bfc

Bug fixes:

• Fixed a rare crash on programs with a large number of instructions
  had no effect.
• Fixed a memory issue where programs with a large number of cells
  (which were stored on the stack) were misoptimised and
  segfaulted. Cell storage is now on the heap.

Optimisations:

• Stripping symbols from the output binary can now be controlled with
  --strip.
• Re-added a multiply loop optimisation. This was removed in 1.5.0 due to
  soundness bugs.

Usability:

• Added a --version CLI argument.

Removed multiply loop extraction due to various known soundness failures.

Bug fixes:

• Fixed an optimisation that incorrectly removed instructions when
  both . and , instructions were present.
• Moved to LLVM 3.8, as LLVM 3.7 misoptimised some programs (see #8).

Usability:

• bfc now reports a helpful error on nonexistent targets.
• Improved wording of the warning message on multiply loops that
  access out-of-bounds cells.
• Added a --passes CLI argument to customise which bfc optimisation
  passes are run.

Now with precompiled binaries for users to play with!