Re: [Tinycc-devel] confused about reg_classes

[Paul Moore]

>>I hope this helps,
>>Ekaitz

My original confusion stemmed from R_RET, I read it as returning what type of 
register to use for return values.

Plus the fact that the upper level tccgen code deals in register types not 
registers (gv(rc), not gv(r)).

Now I get it: R_RET says "use this register" RC_RET converts that to an rc that 
later calls will use to get that register back via get_reg (Seems it also 
allows me to actually have a choice of return registers if several match the 
class that RC_RET returns)

Thank you