Re: Reg Alloc Problem.

2014-03-14 Thread Umesh Kalappa
Hi All, To handle the below problem i.e making specific set of register as base registers ,which is the subset of general registers set. we see the *.c.208.ira logs as Pass 0 for finding pseudo/allocno costs r21: preferred BASE_REGS, alternative GENERAL_REGS, allocno GENERAL_REGS a2 (

Reg Alloc Problem.

2014-03-12 Thread Umesh Kalappa
Hi All, We are porting the gcc 4.8.1 to the new target and which has the pair 16 bit registers like AB or CD or EF and we modeled it in reg_class as AB,CD and DE 16 bit pair_regs and CD ,EF as 16 bit base_regs and A,B,C,D E and F as 8 bit as general_regs. We are stuck with below issues like