On Tue, Apr 07, 2020 at 05:58:01PM -0500, Segher Boessenkool wrote: > > + /* Enable -mprefixed by default on 64-bit 'future' systems. */ > > + if (TARGET_FUTURE && TARGET_POWERPC64 > > + && (rs6000_isa_flags_explicit & OPTION_MASK_PREFIXED) == 0) > > + rs6000_isa_flags |= OPTION_MASK_PREFIXED; > > I don't understand why only for 64 bit?
I have doubts whether PC-relative really works with 32-bit. I suspect that you may see some hidden wrap around issues if an address crosses the 32-bit boundary. Given the simulator I have access to only runs Linux 64-bit, I have no way of testing it. I would prefer to not put in code that I can't test. But if the only way to get the patch in is to remove the test, I can remove it. -- Michael Meissner, IBM IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA email: meiss...@linux.ibm.com, phone: +1 (978) 899-4797
