On Sun, Feb 7, 2016 at 11:36 AM, H.J. Lu <hjl.to...@gmail.com> wrote: > On Sun, Feb 7, 2016 at 11:31 AM, Florian Weimer <f...@deneb.enyo.de> wrote: >> * H. J. Lu: >> >>> I am proposing to update Intel386, x86-64 and IA MCU psABIs to specify >>> how to pass/return empty struct: >>> >>> 1. "collection". A collection is a structure, union or C++ class. >>> 2. "empty collection". An empty collection is: >>> a. A collection without member. Or >>> b. A collection with only empty collections. Or >>> c. An array of empty collections. >>> 3. "empty record". An empty record is Plain Old Data (POD) for the purpose >>> of layout and >>> a. A collection without member. Or >>> b. A collection with only empty collections. >>> 4. No memory slot nor register should be used to pass or return an object of >>> empty collection. >> >> “Aggregate” may be the more standard term instead of collection. > > Aggregate also include array, which is excluded here. > >> I think you mean “empty record” under 4. > > Yes. I will fix it.
This typo isn't in the proposed x86 psABIs: https://github.com/hjl-tools/x86-psABI/wiki/X86-psABI which has "No memory slot nor register should be used to pass or return an object of empty record." H.J. _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
