Hello, I get a processor SPARC-V8 dedicated to embedded application. So far I have used gcc-3.4.4 version with option "-mflat" to limit register file to 32 registers (register window model was de-activated). Now I have to upgrade GCC version (to get new optimisations), but the "-mflat" option is no more supported in newer GCC options. Is there a way to get "-mflat" option on new GCC version? If the answer is "no", is there a trick to never allocate some registers when we use the register window model? My scope would be to remove all %l3 to %l7 registers for instance in order to save silicon area. I need your help, thanks, Laurent POCHE
