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From: Herbert Guan <Herbert.Guan@arm.com>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"jianbo.liu@linaro.org" <jianbo.liu@linaro.org>,
	"jerin.jacob@caviumnetworks.com" <jerin.jacob@caviumnetworks.com>,
	"nelio.laranjeiro@6wind.com" <nelio.laranjeiro@6wind.com>
Subject: Re: [dpdk-dev] [PATCH v2] eal/armv8: fix poly64/128 compile issue in old GCC(<4.9.0)
Date: Wed, 19 Jul 2017 08:21:08 +0000	[thread overview]
Message-ID: <HE1PR08MB280983F651AE1C484F6D81B186A60@HE1PR08MB2809.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <11032881.QA85Xq1nMD@xps>

Thomas,

Thanks a lot for your review and comment.  But I have some concern in this approach.  "poly128_t" is for ARM64 platform only and in fact it's more likely that rte_v128u8_t (generic DPDK data type) could be defined from poly128_t (ARM data type) which seems more reasonable.

Best regards,
Herbert

-----Original Message-----
From: Thomas Monjalon [mailto:thomas@monjalon.net]
Sent: Tuesday, July 18, 2017 22:44
To: Herbert Guan <Herbert.Guan@arm.com>
Cc: dev@dpdk.org; jianbo.liu@linaro.org; jerin.jacob@caviumnetworks.com; nelio.laranjeiro@6wind.com
Subject: Re: [dpdk-dev] [PATCH v2] eal/armv8: fix poly64/128 compile issue in old GCC(<4.9.0)

13/07/2017 05:16, Herbert Guan:
> --- a/lib/librte_eal/common/include/arch/arm/rte_vect.h
> +++ b/lib/librte_eal/common/include/arch/arm/rte_vect.h
> +#if (GCC_VERSION < 40900)
> +typedef uint64_t poly64_t;
> +typedef uint64x2_t poly64x2_t;
> +typedef uint8_t poly128_t __attribute__((vector_size(16), aligned(16)));
> +#endif

I think a better fix would be to switch to DPDK types
like rte_v128u8_t.

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  reply	other threads:[~2017-07-19  8:21 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-12 10:50 [dpdk-dev] [PATCH] ARMv8: Use built-in data types for unsupported poly64/128 types for GCC version lower than 4.9.0 Herbert Guan
2017-07-12 15:36 ` Jianbo Liu
2017-07-12 17:45 ` Jerin Jacob
2017-07-13  3:13   ` Herbert Guan
2017-07-13  2:16 ` [dpdk-dev] [PATCH v2] eal/armv8: fix poly64/128 compile issue in old GCC(<4.9.0) Herbert Guan
2017-07-18 14:44   ` Thomas Monjalon
2017-07-19  8:21     ` Herbert Guan [this message]
2017-07-19 12:31       ` Thomas Monjalon
2017-07-24 10:25         ` Herbert Guan
2017-07-31  7:24   ` Thomas Monjalon

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