RISC-V vcreate Compatibility Issue and Workaround

[UserEdmund]

RISC-V vcreate Compatibility Issue and Workaround

On some RISC-V systems, the environment does not recognize vcreate. This appears to be due to the fact that vcreate requires GCC 14, and my current setup is using GCC 13.

To work around this, I replaced the vcreate instruction with an equivalent sequence using vset in the following source file:

/ggml/src/ggml-cpu/arch/riscv/quants.c

🔁 Replacement Code

// Original code
v0c = __riscv_vcreate_v_i8m1_i8m2(v0l, v0h);

// Workaround using vset
v0c = __riscv_vset_v_i8m1_i8m2(__riscv_vundefined_i8m2(), 0, v0l);
v0c = __riscv_vset_v_i8m1_i8m2(v0c, 1, v0h);

This solution did allow the code to successfully run build, but when I deploys llama-server it still failed and the error message is illegal instruction.