ldc nvvm GPU intrinsics good news

[kinke]

On Friday, 5 March 2021 at 13:30:52 UTC, Bruce Carneal wrote:
> Unfortunately, the "obvious" pragma(LDC_intrinsic, ...) forms 
> that I've tried for llvm_i1_ty gccbuiltin intrinsics have not 
> worked, at least not for the vote/ballot test cases.  I'll keep 
> investigating.

For __nvvm_vote_ballot (no idea what it does), this seems to 
suffice (bool for i1):

pragma(LDC_intrinsic, "llvm.nvvm.vote.ballot")
int __nvvm_vote_ballot(bool);

void foo(bool a) { __nvvm_vote_ballot(a); }

https://run.dlang.io/is/z0k6l9