ce is that it will act on combine pass which is more generic
> than the PATCH v1 (which acts on split2 pass).
>
> Pan
>
> -Original Message-
> From: Kito Cheng
> Sent: Thursday, April 27, 2023 11:00 PM
> To: Li, Pan2
> Cc: gcc-patches@gcc.gnu.org; juzhe.zh...@ri
2023 11:00 PM
To: Li, Pan2
Cc: gcc-patches@gcc.gnu.org; juzhe.zh...@rivai.ai; Wang, Yanzhang
Subject: Re: [PATCH] RISC-V: Allow RVV VMS{Compare}(V1, V1) simplify to VMCLR
> Could you try something like this? that should be more generic:
>
> (define_split
> [(set (match_operand:VB
> Could you try something like this? that should be more generic:
>
> (define_split
> [(set (match_operand:VB 0 "register_operand")
>(if_then_else:VB
> (unspec:VB
>[(match_operand:VB 1 "vector_all_trues_mask_operand")
> (match_operand 4 "vector_length_opera
> +(define_split
> + [(set (match_operand: 0 "register_operand")
> + (if_then_else:
> + (unspec:
> + [(match_operand: 1 "vector_all_trues_mask_operand")
> +(match_operand 6 "vector_length_operand")
> +(match_operand 7 "const_int_operand")
>
From: Pan Li
When some RVV integer compare operators act on the same vector
registers without mask. They can be simplified to VMCLR.
This PATCH allow the ne, lt, ltu, gt, gtu to perform such kind
of the simplification by adding one new define_split.
Given we have:
vbool1_t test_shortcut_for_ris
