error: cannot evaluate SIMD vector length `C` --> $DIR/generic_const_simd_vec_len.rs:10:32 | LL | pub struct Foo([u8; C]); | ^^^^^^^ | note: SIMD vector length needs to be known statically for use in `asm!` --> $DIR/generic_const_simd_vec_len.rs:16:27 | LL | src = in(xmm_reg) a, | ^ error: aborting due to 1 previous error