GIMPLE nodes to ASM by using builtins

[Thomas A.M. Bernard]

Hello

I generate a GIMPLE form extended with new nodes coming from language 
extensions. I would like to generate assembly code directly from those 
nodes. I was thinking of using the GCC builtins system. But I cannot 
find the entry point (hook and file) within the files to do so. (GCC 4.1 
version)
Does anyone have any idea?
Thomas