[Bug target/16900] word fetched from released stack frame on ppc-abi_v4 ?
hainque at act-europe dot fr
gcc-bugzilla@gcc.gnu.org
Fri Aug 6 15:24:00 GMT 2004
------- Additional Comments From hainque at act-europe dot fr 2004-08-06 15:24 -------
Subject: Re: word fetched from released stack frame on ppc-abi_v4 ?
pinskia at gcc dot gnu dot org wrote:
> Even though the add is done before the load, there is no harm done. This
> improves code generation and scheduling of code is this is not a bug.
The problem we've observed on VxWorks is an interrupt occurring just
between the two instructions. The released stack is clobbered before
the load, and the load retrieves a random value.
How is that supposed to work ?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16900
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