compiling large functions

[Martin Wiebusch <martin.wiebusch@xxxxxxx>]

Hi,

I'm having trouble compiling generated code, which results in very large 
function bodies. The structure of the function is quite simple; just a 
long list of variable = expression assignments, where each expression is 
at most 30 lines or so. The entire sourcefile can be up to 10MB. (Yes, 
it's a beast of a calculation.) Even without optimization, gcc uses all 
my 2Gig of memory and eventually quits with a "cc1plus: out of memory" 
message.

I have had limited success with splitting up the code into several 
smaller functions. What puzzles me is that, if I put all functions into 
the same source file, gcc still uses much more memory than when I put 
them in separate files (and eventually dies for the 10MB source).

Basically, I'm wondering whether there is a way to tell gcc to just 
compile (and maybe even optimize?) one assignment at a time and not try 
to keep the entire function in memory (assuming that that's what it does 
now).

Best,
Martin.