svenvh added a comment. > For the constant address space, the const attribute (or readnone) can be > used. As memory in the constant address space is immutable, the statement in > the langref that: "if a readnone function reads or writes memory visible to > the program, or has other side-effects, the behavior is undefined" does not > apply. The reading of immutable memory does not have side-effects, nor can it > be affected by side-effects.
I think `readnone` might be too strong, because the pointer argument will still be dereferenced (while `readnone` implies that "the function computes its result [...] based strictly on its arguments, without dereferencing any pointer arguments"). Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D110742/new/ https://reviews.llvm.org/D110742 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
