From: Richard Henderson <rth@redhat.com>
To: Arnaud Charlet <charlet@adacore.com>
Cc: gcc-patches@gcc.gnu.org, Vincent Pucci <pucci@adacore.com>
Subject: Re: [Ada] Fix to 64-bit atomic operation failures on ppc-linux
Date: Tue, 17 Jul 2012 15:55:00 -0000 [thread overview]
Message-ID: <50058AE8.8000706@redhat.com> (raw)
In-Reply-To: <20120717101511.GA25996@adacore.com>
On 07/17/2012 03:15 AM, Arnaud Charlet wrote:
> + function Sync_Compare_And_Swap_32
> (Ptr : Address;
> Expected : uint32;
> Desired : uint32) return uint32;
> pragma Import (Intrinsic,
> + Sync_Compare_And_Swap_32,
> "__sync_val_compare_and_swap_4");
>
> + function Sync_Compare_And_Swap_64
> (Ptr : Address;
> Expected : uint64;
> - Desired : uint64) return uint64;
> + Desired : uint64) return Boolean;
> pragma Import (Intrinsic,
> + Sync_Compare_And_Swap_64,
> - "__sync_val_compare_and_swap_8");
> + "__sync_bool_compare_and_swap_8");
Ignoring the name change, why return bool only for the 64-bit function?
This is surely papering over some sort of bug elsewhere...
r~
prev parent reply other threads:[~2012-07-17 15:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-17 10:15 Arnaud Charlet
2012-07-17 11:57 ` Andrew MacLeod
2012-07-17 15:57 ` Richard Henderson
2012-07-17 15:59 ` Andrew MacLeod
2012-07-17 15:55 ` Richard Henderson [this message]
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