Thanks for explaining, LGTM :)
On Mon, Sep 4, 2023 at 11:39 PM Lehua Ding <lehua.d...@rivai.ai> wrote:
>
> Hi Kito,
>
> > Can those intermediate patterns be used for intrinsic? I would prefer
> > to keep those stuff *IF* possible used for intrinsics.
>
> I think we don't need those patterns for intrinisc. First, the deleted
> pattern does not directly correspond to intrinisc. Second, if you want
> to use these patterns to optimize the following intrinisc program (e.g.
> combine to a single vwadd.vv instruction), we'd better fold them
> directly into the internal function of autovec in Gimple IR.
>
> vint32m1_t foo(vint16mf2_t va1, vint16mf2_t vb1) {
> vint32m1_t va2 = __riscv_vsext_vf2_i32m1(va1,
> __riscv_vsetvlmax_e32m1());
> vint32m1_t vb2 = __riscv_vsext_vf2_i32m1(vb1,
> __riscv_vsetvlmax_e32m1());
> vint32m1_t vc = __riscv_vadd_vv_i32m1(va2, vb2,
> __riscv_vsetvlmax_e32m1());
> return vc;
> }
> --
> Best,
> Lehua
>
>
