[LLVMdev] LLVM Register allocation

[Vijayaraghavan Murali]

Hello,

I'm relatively a newcomer to this forum and LLVM. I wish to do the 
following:

1) play with LLVM's register allocation without any other optimizations 
performed, such as inlining. This is because I'm trying to observe the 
effects of our path-sensitive tool on register allocation but other 
optimizations could influence the results. In other words, I would like 
to perform register allocation with -O0, if that's possible.

2) view the results of register allocation. That is, the mapping of 
variables to physical registers. I'm comfortable with reading dwarf 
information. For eg, using gcc I would do: gcc -c -g hello.c ; dwarfdump 
hello.o

Kindly guide me in performing the above steps. If they are not possible, 
is there any workaround?

Thank you!

-----
Vijayaraghavan Murali
http://www.comp.nus.edu.sg/~mvijayar