phoebewang wrote: > > max aligment [...] LLVM Verifier accepts is 2^14 > > The verifier limit in most places is 2^32. It looks like 2^14 is specifically > for ByVal. And there isn't really any good reason for that limit; it was > arbitrarily chosen in > [66011c1](https://github.com/llvm/llvm-project/commit/66011c17d539d1ec93a145d7db6c0381494a826f), > nearly two decades ago, and could easily be changed if we want. > > Can we just fix the backend so ByVal has the same alignment limit as > everything else? I really don't want the complexity of multiple different > alignment limits here.
I think the intention is to reduce the size of ArgFlagsTy. The super large alignment isn't meaningful to any targets. Maybe we can reduce the other limitation to 2^14 as well? Another alternative suggested by @nikic was to use the free bits in PointerAddrSpace. If we use e.g. 5bits, we can limit it to 2^31, but still smaller than 2^32. https://github.com/llvm/llvm-project/pull/98629 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
