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From: "juzhe.zhong@rivai.ai" <juzhe.zhong@rivai.ai>
To: gcc-patches <gcc-patches@gcc.gnu.org>
Cc: Kito.cheng <Kito.cheng@sifive.com>,
	 kito.cheng <kito.cheng@gmail.com>,
	 "Robin Dapp" <rdapp.gcc@gmail.com>,
	 jeffreyalaw <jeffreyalaw@gmail.com>
Subject: [PATCH] RISC-V: Documnet the list of supported extensions
Date: Thu, 11 Jan 2024 17:15:08 +0800	[thread overview]
Message-ID: <7F15018AE025F175+202401111715076074637@rivai.ai> (raw)

[-- Attachment #1: Type: text/plain, Size: 691 bytes --]

Hi, kito.

+@item zvl8192b
+@tab 1.0
+@tab Minimum vector length standard extensions
+
+@item zvl16384b
+@tab 1.0
+@tab Minimum vector length standard extensions
+
+@item zvl32768b
+@tab 1.0
+@tab Minimum vector length standard extensions
+
+@item zvl65536b
+@tab 1.0
+@tab Minimum vector length standard extensions

I think we can't claim we support these  extensions even though our march allow them.

Since we are using poly_uint16 to specify the variable length size and:

#define MAX_BITSIZE_MODE_ANY_MODE (4096 * 8)

We can only support zvl4096b at maximum, otherwise, users will have problem if they tried to use RVV GCC with like zvl8192b.





juzhe.zhong@rivai.ai

             reply	other threads:[~2024-01-11  9:15 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-11  9:15 juzhe.zhong [this message]
  -- strict thread matches above, loose matches on Subject: below --
2024-01-11  9:06 Kito Cheng
2024-01-15 20:07 ` Bernhard Reutner-Fischer
2024-01-19  9:40   ` Kito Cheng

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