aqjune added a comment. In D90275#2374648 <https://reviews.llvm.org/D90275#2374648>, @gulfem wrote:
> Leaf attribute is specifically intended for library functions and I think all > the existing usage of leaf attribute is in the library function declarations. > For ex, it is only used in syscalls in Fuchsia. > Therefore, I'm not sure whether it is really necessary to ban leaf attribute > in function definitions. > Even though function attributes are typically intended to be used in the > function declaration, compilers do not have policy to forbid using them in > the function definition. Maybe it's because the `leaf` (or `nocallback` or whatever) attribute at the function definition in IR can't be used for any optimization? For the callers, `leaf` attribute at the function declarations is already giving the information. But the attribute at function definitions really give no additional information inside the TU, so it's redundant. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D90275/new/ https://reviews.llvm.org/D90275 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
