Hi! On Wed, Mar 25, 2020 at 11:15:22PM -0500, luo...@linux.ibm.com wrote: > frame_pointer_needed is set to true in reload pass setup_can_eliminate, > but regs_ever_live[31] is false, so pro_and_epilogue doesn't save/restore > r31 even it is used actually, causing CPU2006 465.tonto segment fault of > loading from invalid addresses.
If df_regs_ever_live_p(31) is false there is no hard frame pointer anywhere in the program. How can it be used then? Segher
