gistfile1.txt

  -fcase-merge
              Enable case-merging. Implied by -O.


 -fcse  
 	Turn on common sub-expression elimination. Implied by -O.


       -fdo-eta-reduction
              Enable eta-reduction. Implied by -O                         

       -fenable-rewrite-rules
              Switch on all rewrite rules (including rules generated by automatic specialisation of overloaded functions). Implied by -O.


       -ffloat-in
              Turn on the float-in transformation. Implied by -O.

       -ffull-laziness
              Turn on full laziness (floating bindings outwards). Implied by -O.

       -fsimplifier-phases
              Set the number of phases for the simplifier (default 2). Ignored with -O0.

       -fspecialise
              Turn on specialisation of overloaded functions. Implied by -O.

       -fstrictness
              Turn on strictness analysis. Implied by -O.
cqq