Hello GCC developers, I am avid user of gcc and have 5 cross-gcc's installed on my machine. Thanks for your great work. Recently I want to do some compiler work that involves analyzing low level intermediate representation. I thought about using research compilers such as SUIF or SUIF II but those lack maintenance and cannot even be built without much hacking. So I am now considering using gcc. But since I am not familiar with its source code structure, I am not comfortable to work directly on it. Instead, I am thinking of dumping the MIPS RTL prior to the first scheduling pass and then use an RTL parser to read it into another compiler such as mach-SUIF. But the document says that RTL does not contain all information of a source program, e.g. global variables. So I wonder if there is a way for me to get complete low level MIPS IR that is largely optimized but not register allocated. Or should I give up this thought? Expert please advise.
Thanks in advance, Wei
