gcc for a specific architecture

[Marcio de Oliveira Buss <ra990898 at ic dot unicamp dot br>]

	Dear Maintainers,

	I am working in my M.Sc. Thesis, and I have to modify the gcc
 compiler in order to use it to generate code for a specific architecture.
 I think the code generator has to be modified, as well some internal
 representations. I have to build the basic blocks and the control
 flow graph, but I think this part is already implemented.
	Could you please send me informations about where i can find
 some deep manuals about gcc? Something like the structure of the lexical,
 parser, code generation modules, etc... If it uses dynamic programming to
 generate code (instruction selection/scheduling), and so forth

	I apologise if it seems naive, but i don't have much experience
 in the gcc compiler.

	Best Regards,

	M. Buss.