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Re: [PATCH] Add support for a helper with 7 arguments

From: Richard Henderson
Subject: Re: [PATCH] Add support for a helper with 7 arguments
Date: Fri, 7 Feb 2020 08:53:19 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1

On 2/7/20 4:46 AM, Taylor Simpson wrote:
>> I think that we can do the store immediately -- I give specifics above.  Do 
>> you
>> have a counter-example?  Admittedly I'm new to browsing the architecture,
>> but I
>> don't see a legal packet for which you can't just Store Now.
> You can have two stores in a packet, and the second one could fault.  If 
> anything in the packet faults, none of the instructions commit.

Then what does the manual mean when it says "dual stores have non-parallel
semantics"?  Is that solely about the semantics of the bytes in memory?


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