[avr-gcc-list] Register Allocation -fnew-ra

[Ram Kumar Rengaswamy]

Hi,
     I am using avr-gcc-3.4.3.
I have been trying to build an application that reserves a pair of  
registers (R2 and R3).
I used the option -ffixed-r2 and -ffixed-r3.
I would always get an error message during the compilation of one of  
the C files as follows:
error: can't find a register in class `BASE_POINTER_REGS' while  
reloading `asm'

However, hunting around the web, I came across this new option -fnew- 
ra that uses a different register allocation algorithm.
I am able to successfully build my application with this option.
But it looks like this option is not supported in the newer versions  
of gcc.
Is there any reason for removing -fnew-ra option or is avr-gcc 4.0  
using -fnew-ra as a default option now ?


Thanks,
-Ram