Re: Re: [PATCH] RISC-V: Add duplicate vector support.

[Kito Cheng <kito.cheng@gmail.com>]

LGMT, and as we discussed in another patch[1], I support RVV related
stuff to keep merge for this moment
and we agreed that it is not ideal but acceptable, so committed to trunku :)

[1] https://patchwork.ozlabs.org/project/gcc/patch/20221128141406.242953-1-juzhe.zhong@rivai.ai/

On Tue, Nov 29, 2022 at 6:55 AM 钟居哲 <juzhe.zhong@rivai.ai> wrote:
>
> OK.
>
>
>
> juzhe.zhong@rivai.ai
>
> From: Jeff Law
> Date: 2022-11-29 00:49
> To: juzhe.zhong; gcc-patches
> CC: kito.cheng
> Subject: Re: [PATCH] RISC-V: Add duplicate vector support.
>
> On 11/25/22 09:06, juzhe.zhong@rivai.ai wrote:
> > From: Ju-Zhe Zhong <juzhe.zhong@rivai.ai>
> >
> > gcc/ChangeLog:
> >
> >          * config/riscv/constraints.md (Wdm): New constraint.
> >          * config/riscv/predicates.md (direct_broadcast_operand): New predicate.
> >          * config/riscv/riscv-protos.h (RVV_VLMAX): New macro.
> >          (emit_pred_op): Refine function.
> >          * config/riscv/riscv-selftests.cc (run_const_vector_selftests): New function.
> >          (run_broadcast_selftests): Ditto.
> >          (BROADCAST_TEST): New tests.
> >          (riscv_run_selftests): More tests.
> >          * config/riscv/riscv-v.cc (emit_pred_move): Refine function.
> >          (emit_vlmax_vsetvl): Ditto.
> >          (emit_pred_op): Ditto.
> >          (expand_const_vector): New function.
> >          (legitimize_move): Add constant vector support.
> >          * config/riscv/riscv.cc (riscv_print_operand): New asm print rule for const vector.
> >          * config/riscv/riscv.h (X0_REGNUM): New macro.
> >          * config/riscv/vector-iterators.md: New attribute.
> >          * config/riscv/vector.md (vec_duplicate<mode>): New pattern.
> >          (@pred_broadcast<mode>): New pattern.
> >
> > gcc/testsuite/ChangeLog:
> >
> >          * gcc.target/riscv/rvv/base/dup-1.c: New test.
> >          * gcc.target/riscv/rvv/base/dup-2.c: New test.
>
> I think this should wait for the next stage1 cycle.
>
> jeff
>
>
>