On Thu, 10 Oct 2024 13:56:23 GMT, Hamlin Li <m...@openjdk.org> wrote:
> > FYI: I witnessed some different kinds of compile errors about libsleef > > while building with GCC version 13.2.0 (Ubuntu 13.2.0-23ubuntu4) shipped > > with Ubuntu 24.04.1 LTS riscv64. Seems that GCC-13 doesn't have a good > > support for these RVV intrinsics as it does not recognize quite a few of > > them. If libsleef claims GCC-14+, maybe it's more reasonable to simply > > check the GCC version instead requiring 14+ when configuring openjdk? > > From https://github.com/shibatch/sleef, it state clearly that gcc 14+ is > required, I think we should be fine to check gcc version. > > For llvm, there is no version requirement stated in the page, it could still > require a little `test` program to tell whether rvv intrinsicv are really > supported or not (If `__riscv_v_intrinsic` can not be used as a test macro > for that purpose like gcc(e.g. gcc-13) ). FYI: I see they claim LLVM 17+ from the page: Similarly, the RISC-V interface in SLEEF is based on version 1.0 of the intrinsics, which is only supported from llvm version 17 and gcc version 14 onwards. ------------- PR Comment: https://git.openjdk.org/jdk/pull/21442#issuecomment-2405183494
