73ac953626
Changes included: - Adding CONSTRUCTOR_ATTRIBUTE so that the static data is setup early on in process lifetime. This is required by gcc docs for __builtin_cpu_supports which we hope to implement in terms of this. - Move the length initialization outside of the #if defined(linux) block so that the length field always reflects the size of the structures even if non of the feature bits are non-zero. - Change the __riscv_vendor_feature_bits.length field to match the length of the actual structure. Note: Copy from https://github.com/llvm/llvm-project/pull/99958 --------- Co-authored-by: Philip Reames <preames@rivosinc.com>