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From: 钟居哲 <>
To: rdapp.gcc <>,
	 gcc-patches <>,
	 palmer <>,  kito.cheng <>, <>,  "Jeff Law" <>
Cc: rdapp.gcc <>
Subject: Re: Re: [PATCH] RISC-V: Split VF iterators for Zvfh(min).
Date: Thu, 22 Jun 2023 21:37:04 +0800	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

[-- Attachment #1: Type: text/plain, Size: 1049 bytes --]

Oh. I see. I think I am wrong.  Sorry for that :).
load/store are using 'V' iterators. 

This patch looks reasonable to me now.

Thanks for catching this.
From: Robin Dapp
Date: 2023-06-22 21:32
To: 钟居哲; gcc-patches; palmer; kito.cheng;; Jeff Law
CC: rdapp.gcc
Subject: Re: [PATCH] RISC-V: Split VF iterators for Zvfh(min).
> I don't understand why it is necessary to bother "VF". "VF” should
> not be changed since intrinsic stuff is quite stable and any
> unreasonable changes are unacceptable.
Ok, I hear your concern.  My argument is: Currently our mechanism
of disabling instructions is incorrect and if any of the VF instructions
were to be created by combine, fwprop or other passes we'd potentially
ICE in reload.  The other option is to leave VF unchanged and duplicate
all patterns for VHF.  Those can have a TARGET_ZVFH then.
> vle/vse/vluxei/vloxei/vsuxei/vsoxei/vlse/vsse.
These are all V/VT and not VF? (apart from vlse which I adjusted)

  reply	other threads:[~2023-06-22 13:37 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-22 13:03 Robin Dapp
2023-06-22 13:14 ` 钟居哲
2023-06-22 13:22   ` Robin Dapp
2023-06-22 13:25     ` 钟居哲
2023-06-22 13:32       ` Robin Dapp
2023-06-22 13:37         ` 钟居哲 [this message]
2023-06-22 13:45           ` Li, Pan2
2023-06-22 14:30             ` Robin Dapp
2023-06-23 12:54               ` Li, Pan2
2023-06-23 19:27                 ` Jeff Law
2023-06-24 16:38 ` Jeff Law

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