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- Propagate types more accurately to improve optimization on ANF
representation.
- Add a generic optimization pass to remove redundant variables that
simply alias other variables.
- Modify Sail interactive mode, so it can compile a specification with
the :compile command, view generated intermediate representation via
the :ir <function> command, and step-through the IR with :exec <exp>
(although this is very incomplete)
- Introduce a third bitvector representation, between fast
fixed-precision bitvectors, and variable length large
bitvectors. The bitvector types are now from most efficient to least
* CT_fbits for fixed precision, 64-bit or less bitvectors
* CT_sbits for 64-bit or less, variable length bitvectors
* CT_lbits for arbitrary variable length bitvectors
- Support for generating C code using CT_sbits is currently
incomplete, it just exists in the intermediate representation right
now.
- Include ctyp in AV_C_fragment, so we don't have to recompute it
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