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From: Richard Sandiford <richard.sandiford@arm.com>
To: "yanzhang.wang--- via Gcc-patches" <gcc-patches@gcc.gnu.org>
Cc: yanzhang.wang@intel.com,  apinski@marvell.com,
	 juzhe.zhong@rivai.ai,  kito.cheng@sifive.com
Subject: Re: [PATCH] Bug 111071: fix the subr with -1 to not due to the simplify.
Date: Mon, 04 Sep 2023 19:59:53 +0100	[thread overview]
Message-ID: <mptil8pvk5y.fsf@arm.com> (raw)
In-Reply-To: <mptjzt6vu9m.fsf@arm.com> (Richard Sandiford's message of "Mon, 04 Sep 2023 16:21:41 +0100")

Richard Sandiford <richard.sandiford@arm.com> writes:
> "yanzhang.wang--- via Gcc-patches" <gcc-patches@gcc.gnu.org> writes:
>> From: Yanzhang Wang <yanzhang.wang@intel.com>
>>
>> gcc/testsuite/ChangeLog:
>>
>> 	* gcc.target/aarch64/sve/acle/asm/subr_s8.c: Modify subr with -1
>>     to not.
>>
>> Signed-off-by: Yanzhang Wang <yanzhang.wang@intel.com>
>> ---
>>
>> Tested on my local arm environment and passed. Thanks Andrew Pinski's comment
>> the code is the same with that.
>>
>>  gcc/testsuite/gcc.target/aarch64/sve/acle/asm/subr_s8.c | 3 +--
>>  1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/gcc/testsuite/gcc.target/aarch64/sve/acle/asm/subr_s8.c b/gcc/testsuite/gcc.target/aarch64/sve/acle/asm/subr_s8.c
>> index b9615de6655..1cf6916a5e0 100644
>> --- a/gcc/testsuite/gcc.target/aarch64/sve/acle/asm/subr_s8.c
>> +++ b/gcc/testsuite/gcc.target/aarch64/sve/acle/asm/subr_s8.c
>> @@ -76,8 +76,7 @@ TEST_UNIFORM_Z (subr_1_s8_m_untied, svint8_t,
>>  
>>  /*
>>  ** subr_m1_s8_m:
>> -**	mov	(z[0-9]+\.b), #-1
>> -**	subr	z0\.b, p0/m, z0\.b, \1
>> +**	not	z0.b, p0/m, z0.b
>>  **	ret
>>  */
>>  TEST_UNIFORM_Z (subr_m1_s8_m, svint8_t,
>
> I think we need this for subr_u8.c too.  OK with that change,
> and thanks for the fix!

Actually, never mind.  I just saw a patch from Thiago Jung Bauerman
for the same issue, which is now in trunk.  Sorry for the confusion,
and thanks again for posting the fix.

Richard

      reply	other threads:[~2023-09-04 18:59 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-30  1:09 yanzhang.wang
2023-09-04 15:21 ` Richard Sandiford
2023-09-04 18:59   ` Richard Sandiford [this message]

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