chill added a comment. In D68862#1708079 <https://reviews.llvm.org/D68862#1708079>, @carwil wrote:
> > IMHO, since reserved registes are per-function, this strongly suggests > > implementation as function attribute(s), rather than subtarget features > > (also for the pre-existing r9). > > What do you mean reserved registers are per-function? That sounds like you're > describing local register variables, which I don't believe Clang has any > support for (and there aren't a great deal of use-cases for anyway). > We're specifically talking about global usage here. I mean that the set is dynamically computed and depends on the specific function: cf. https://github.com/llvm/llvm-project/blob/master/llvm/lib/Target/ARM/ARMBaseRegisterInfo.cpp#L184 as opposed to, say, depend only on target/subtarget/abi. CHANGES SINCE LAST ACTION https://reviews.llvm.org/D68862/new/ https://reviews.llvm.org/D68862 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
