symble table for RTL representation

[Liang-Fang Chao]

I am studying RTL representation of gcc.

I found that even when I compile with -g flag, no information is given
in RTL for variable names, such as which register/memory location corresponds
to which variable names in source program. 

Do I find such information in a separate symble table? Where can I find 
information on how to access the symble table or possibly dumping it?

Thanks much.

Liang-Fang Chao
Quickturn, A Cadence Company