I looked for "into" and "ssa" in passes.c, but I've not found
anything. Also I tried with options -fdump-tree-ssa and -O1 but, when
my pass is executed, code is only in GIMPLE form (in this last case a
file with code in SSA form is written, but I don't need a file, I'd
like that basic blocks contain code in SSA form).
Maybe the problem is that my pass is executed in a point in which SSA
form is not available. So the question is: when have I to execute my
passe? (i.e. where have I to put NEXT_PASS macro?) Are there also
other parameters or flags to be set?