Tamar Christina writes:
> Hi,
>
> I hadn't received any reply so I had implemented various ways to do this
> (about 8 of them in fact).
>
> The conclusion is that no, we cannot emit one big RTL for the final
> instruction immediately.
> The reason that all comparisons in the AArch64 backend expa
Hi,
I hadn't received any reply so I had implemented various ways to do this (about
8 of them in fact).
The conclusion is that no, we cannot emit one big RTL for the final instruction
immediately.
The reason that all comparisons in the AArch64 backend expand to separate CC
compares, and
separa
hristina
> Cc: gcc-patches@gcc.gnu.org; Richard Earnshaw
> ; nd ; Marcus Shawcroft
>
> Subject: Re: [PATCH 2/2]AArch64 Support new tbranch optab.
>
> Tamar Christina writes:
> >> -Original Message-
> >> From: Richard Sandiford
> >> Sent: Tuesday, N
Tamar Christina writes:
>> -Original Message-
>> From: Richard Sandiford
>> Sent: Tuesday, November 15, 2022 11:34 AM
>> To: Tamar Christina
>> Cc: gcc-patches@gcc.gnu.org; Richard Earnshaw
>> ; nd ; Marcus Shawcroft
>>
>> Subject:
> -Original Message-
> From: Richard Sandiford
> Sent: Tuesday, November 15, 2022 11:34 AM
> To: Tamar Christina
> Cc: gcc-patches@gcc.gnu.org; Richard Earnshaw
> ; nd ; Marcus Shawcroft
>
> Subject: Re: [PATCH 2/2]AArch64 Support new tbranch optab.
>
> -Original Message-
> From: Richard Sandiford
> Sent: Tuesday, November 15, 2022 11:34 AM
> To: Tamar Christina
> Cc: gcc-patches@gcc.gnu.org; Richard Earnshaw
> ; nd ; Marcus Shawcroft
>
> Subject: Re: [PATCH 2/2]AArch64 Support new tbranch optab.
>
Tamar Christina writes:
>> -Original Message-
>> From: Richard Sandiford
>> Sent: Tuesday, November 15, 2022 11:15 AM
>> To: Tamar Christina
>> Cc: gcc-patches@gcc.gnu.org; Richard Earnshaw
>> ; nd ; Marcus Shawcroft
>>
>> Subject:
> -Original Message-
> From: Richard Sandiford
> Sent: Tuesday, November 15, 2022 11:15 AM
> To: Tamar Christina
> Cc: gcc-patches@gcc.gnu.org; Richard Earnshaw
> ; nd ; Marcus Shawcroft
>
> Subject: Re: [PATCH 2/2]AArch64 Support new tbranch optab.
>
Tamar Christina writes:
>> -Original Message-
>> From: Richard Sandiford
>> Sent: Tuesday, November 15, 2022 10:51 AM
>> To: Tamar Christina
>> Cc: gcc-patches@gcc.gnu.org; Richard Earnshaw
>> ; nd ; Marcus Shawcroft
>>
>> Subject:
> -Original Message-
> From: Richard Sandiford
> Sent: Tuesday, November 15, 2022 10:51 AM
> To: Tamar Christina
> Cc: gcc-patches@gcc.gnu.org; Richard Earnshaw
> ; nd ; Marcus Shawcroft
>
> Subject: Re: [PATCH 2/2]AArch64 Support new tbranch optab.
>
Tamar Christina writes:
>> -Original Message-
>> From: Richard Sandiford
>> Sent: Tuesday, November 15, 2022 10:36 AM
>> To: Tamar Christina
>> Cc: gcc-patches@gcc.gnu.org; Richard Earnshaw
>> ; nd ; Marcus Shawcroft
>>
>> Subject:
> -Original Message-
> From: Richard Sandiford
> Sent: Tuesday, November 15, 2022 10:36 AM
> To: Tamar Christina
> Cc: gcc-patches@gcc.gnu.org; Richard Earnshaw
> ; nd ; Marcus Shawcroft
>
> Subject: Re: [PATCH 2/2]AArch64 Support new tbranch optab.
>
Tamar Christina writes:
> Hello,
>
> Ping and updated patch.
>
> Bootstrapped Regtested on aarch64-none-linux-gnu and no issues.
>
> Ok for master?
>
> Thanks,
> Tamar
>
> gcc/ChangeLog:
>
> * config/aarch64/aarch64.md (*tb1): Rename to...
> (*tb1): ... this.
> (tbranch4):
Hello,
Ping and updated patch.
Bootstrapped Regtested on aarch64-none-linux-gnu and no issues.
Ok for master?
Thanks,
Tamar
gcc/ChangeLog:
* config/aarch64/aarch64.md (*tb1): Rename to...
(*tb1): ... this.
(tbranch4): New.
gcc/testsuite/ChangeLog:
* gcc.targe
Hi All,
This implements the new tbranch optab for AArch64.
Instead of emitting the instruction directly I've chosen to expand the pattern
using a zero extract and generating the existing pattern for comparisons for two
reasons:
1. Allows for CSE of the actual comparison.
2. It looks like the
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