frasercrmck wrote: > > I'm not sure why we would ever want the current default if this is an > > option. I'm trying to see it, but I can't work out a case where a 64bit > > pointer would make sense, since the even tens-of-thousands of money > > supercomputer cards have less than 256KiB of addressable shared memory. > > It might be a bit of an intrusive change (albeit a relatively mechanical > > one), but until we see a GPU come to market that has >4GiB addressable > > shared memory, I think we should use the "short pointer" datalayout as > > default > > It also applies to constant and private / local address spaces. I don't think > those hit 4 GiB yet but it's more feasible than shared. Making address space > 3 32-bit by default would make sense to me.
I was also considering separating out address space 3 into its own option, yep. At that point I suppose you might as well split out the remaining two, and have `-fcuda-short-ptr` alias the three of them. https://github.com/llvm/llvm-project/pull/111682 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
