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* [PATCH] RISC-V: Fix bugs of available condition.
@ 2023-01-03  7:30 juzhe.zhong
  2023-01-26 19:13 ` Kito Cheng
  0 siblings, 1 reply; 2+ messages in thread
From: juzhe.zhong @ 2023-01-03  7:30 UTC (permalink / raw)
  To: gcc-patches; +Cc: kito.cheng, palmer, Ju-Zhe Zhong

From: Ju-Zhe Zhong <juzhe.zhong@rivai.ai>

Suppose there are 2 demand infos:

Demand 1: demand TAIL.
Demand 2: not demand TAIL.

If a block is demand 1, we should adjust this block is available both for demand 1 && 2.
However, if a block is demand 2, we should only adjust this block is available for demand 2 only.

gcc/ChangeLog:

        * config/riscv/riscv-vsetvl.cc (vector_insn_info::operator>=): Fix available condition.

---
 gcc/config/riscv/riscv-vsetvl.cc | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/gcc/config/riscv/riscv-vsetvl.cc b/gcc/config/riscv/riscv-vsetvl.cc
index 6dbaea32b03..52f0195980a 100644
--- a/gcc/config/riscv/riscv-vsetvl.cc
+++ b/gcc/config/riscv/riscv-vsetvl.cc
@@ -1048,12 +1048,10 @@ vector_insn_info::operator>= (const vector_insn_info &other) const
 	}
     }
 
-  if (demand_p (DEMAND_TAIL_POLICY) && !other.demand_p (DEMAND_TAIL_POLICY)
-      && get_ta () != other.get_ta ())
+  if (!demand_p (DEMAND_TAIL_POLICY) && other.demand_p (DEMAND_TAIL_POLICY))
     return false;
 
-  if (demand_p (DEMAND_MASK_POLICY) && !other.demand_p (DEMAND_MASK_POLICY)
-      && get_ma () != other.get_ma ())
+  if (!demand_p (DEMAND_MASK_POLICY) && other.demand_p (DEMAND_MASK_POLICY))
     return false;
 
   return true;
-- 
2.36.3


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [PATCH] RISC-V: Fix bugs of available condition.
  2023-01-03  7:30 [PATCH] RISC-V: Fix bugs of available condition juzhe.zhong
@ 2023-01-26 19:13 ` Kito Cheng
  0 siblings, 0 replies; 2+ messages in thread
From: Kito Cheng @ 2023-01-26 19:13 UTC (permalink / raw)
  To: juzhe.zhong; +Cc: gcc-patches, palmer

[-- Attachment #1: Type: text/plain, Size: 1463 bytes --]

committed, thanks.

On Tue, Jan 3, 2023 at 3:31 PM <juzhe.zhong@rivai.ai> wrote:

> From: Ju-Zhe Zhong <juzhe.zhong@rivai.ai>
>
> Suppose there are 2 demand infos:
>
> Demand 1: demand TAIL.
> Demand 2: not demand TAIL.
>
> If a block is demand 1, we should adjust this block is available both for
> demand 1 && 2.
> However, if a block is demand 2, we should only adjust this block is
> available for demand 2 only.
>
> gcc/ChangeLog:
>
>         * config/riscv/riscv-vsetvl.cc (vector_insn_info::operator>=): Fix
> available condition.
>
> ---
>  gcc/config/riscv/riscv-vsetvl.cc | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/gcc/config/riscv/riscv-vsetvl.cc
> b/gcc/config/riscv/riscv-vsetvl.cc
> index 6dbaea32b03..52f0195980a 100644
> --- a/gcc/config/riscv/riscv-vsetvl.cc
> +++ b/gcc/config/riscv/riscv-vsetvl.cc
> @@ -1048,12 +1048,10 @@ vector_insn_info::operator>= (const
> vector_insn_info &other) const
>         }
>      }
>
> -  if (demand_p (DEMAND_TAIL_POLICY) && !other.demand_p
> (DEMAND_TAIL_POLICY)
> -      && get_ta () != other.get_ta ())
> +  if (!demand_p (DEMAND_TAIL_POLICY) && other.demand_p
> (DEMAND_TAIL_POLICY))
>      return false;
>
> -  if (demand_p (DEMAND_MASK_POLICY) && !other.demand_p
> (DEMAND_MASK_POLICY)
> -      && get_ma () != other.get_ma ())
> +  if (!demand_p (DEMAND_MASK_POLICY) && other.demand_p
> (DEMAND_MASK_POLICY))
>      return false;
>
>    return true;
> --
> 2.36.3
>
>

^ permalink raw reply	[flat|nested] 2+ messages in thread

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