Robin Dapp writes:
> Ok so the consensus seems to rather stay with 32 bits and only
> change the shift to 10/20?
Yeah. The check would then be:
if (NUM_OPTABS > 0xfff || NUM_MACHINE_MODES > 0x3ff)
fatal ("genopinit range assumptions invalid");
> As MACHINE_MODE_BITSIZE is already
> 16 we
Sorry for sending incorrect email.
Forget about this:).
juzhe.zh...@rivai.ai
From: 钟居哲
Date: 2023-07-11 21:55
To: rdapp.gcc; gcc-patches; Jeff Law; richard.sandiford; rguenther
CC: rdapp.gcc
Subject: Re: [PATCH] genopinit: Allow more than 256 modes.
For example:
https://godbolt.org/z
For example:
https://godbolt.org/z/1d6v5WKhY
Clang can vectorize but GCC failed even with -ffast-math.
So I think conversions should be well checked again to make sure every variant
can vectorize.
Thanks.
juzhe.zh...@rivai.ai
From: Robin Dapp
Date: 2023-07-11 21:31
To: Robin Dapp via Gcc-p
On Tue, 11 Jul 2023, ??? wrote:
> Thanks for fixing it.
> CC Richards to see whether it is appropriate.
I agree with Richard S., but generally please avoid
'long long' and use stdint types when you need specific
precision.
Richard.
>
>
> juzhe.zh...@rivai.ai
>
> From: Robin Dapp
> Date: 202
> if (NUM_OPTABS > 0x
> || MAX_MACHINE_MODE >= ((1 << MACHINE_MODE_BITSIZE) - 1))
> fatal ("genopinit range assumptions invalid");
>
> so it would be a case of changing those instead.
Thanks, right at the beginning of the file and I didn't see it ;)
MACHINE_MODE_BITSIZE is already 1
Richard Sandiford writes:
> Robin Dapp via Gcc-patches writes:
>> Hi,
>>
>> upcoming changes for RISC-V will have us exceed 256 modes or 8 bits. The
>> helper functions in gen* rely on the opcode as well as two modes fitting
>> into an unsigned int (a signed int even if we consider the qsort defa
Robin Dapp via Gcc-patches writes:
> Hi,
>
> upcoming changes for RISC-V will have us exceed 256 modes or 8 bits. The
> helper functions in gen* rely on the opcode as well as two modes fitting
> into an unsigned int (a signed int even if we consider the qsort default
> comparison function). This
Thanks for fixing it.
CC Richards to see whether it is appropriate.
juzhe.zh...@rivai.ai
From: Robin Dapp
Date: 2023-07-11 19:51
To: gcc-patches
CC: rdapp.gcc; jeffreyalaw; juzhe.zh...@rivai.ai
Subject: [PATCH] genopinit: Allow more than 256 modes.
Hi,
upcoming changes for RISC-V will have u
