Hello, I'm working on estimating register pressure in SMS and using ira_available_class_regs for getting the number of available registers. However I encounter a case where ira_available_class_regs showed 64 available regs for a certain class while ira_class_hard_regs_num showed 61 so I am not sure which one I should use. (I'm also not sure if ira_class_hard_regs_num can be used outside of ira-- if not, I would need to do that calculation myself)
Thanks, Revital