Dumping Low Level Intermediate Representation for Another Compiler

[Marcin Dalecki]

On 2005-03-29, at 05:59, Wei Qin wrote:

> 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.

I don't feel like an expert. However you may consider looking at
the fall-out the the LLVM keyword in google a bit closer. It may
very well give you quite what you want. If you are interested generally
in compilers TenDRA (www.ten15.org) will fit too.