Try to use cibyl built-in optimizations

[meirtsvi]

Go over config.hh file in Cibyl and try enabling one or more of the following optimizations:

this->optimizeInlines = true;
this->optimizeCallTable = false;
this->optimizePartialMemoryOps = false;
this->optimizePruneStackStores = false;
this->optimizeFunctionReturnArguments = false;
this->pruneUnusedFunctions = true;

this->classSizeLimit = 16384; /* Pretty arbitrary value! */
this->callTableHierarchy = 1;
this->callTableClasses = 1;

[SimonKagstrom]

You can access these via the cibyl-mips2java script (assuming you use that for your builds).

You could try forcing everything to one method (the colocation stuff), which would require some cibyl hacks. As I don't think MS CIL has the 64K method size limit that Java has, this should probably generate more efficient code as the function call overhead is mostly gone then.