> -Original Message-
> From: Wilco Dijkstra
> Sent: Thursday, March 16, 2023 6:22 PM
> To: GCC Patches
> Cc: Richard Sandiford ; Kyrylo Tkachov
>
> Subject: Re: [PATCH] libatomic: Fix SEQ_CST 128-bit atomic load [PR108891]
>
> ping
>
>
> From
ping
From: Wilco Dijkstra
Sent: 23 February 2023 15:11
To: GCC Patches
Cc: Richard Sandiford ; Kyrylo Tkachov
Subject: [PATCH] libatomic: Fix SEQ_CST 128-bit atomic load [PR108891]
The LSE2 ifunc for 16-byte atomic load requires a barrier before the LDP -
without it, it effectively has
The LSE2 ifunc for 16-byte atomic load requires a barrier before the LDP -
without it, it effectively has Load-AcquirePC semantics similar to LDAPR,
which is less restrictive than what __ATOMIC_SEQ_CST requires. This patch
fixes this and adds comments to make it easier to see which sequence is
us
