Re: [Qemu-devel] [PATCH v3 2/6] Add copy and constant propagation.

[Stefan Weil <weil@mail.berlios.de>]

Am 03.08.2011 22:20, schrieb Blue Swirl:
> On Wed, Aug 3, 2011 at 7:00 PM, Stefan Weil <weil@mail.berlios.de> wrote:
>> Am 07.07.2011 14:37, schrieb Kirill Batuzov:
>>>
>>> Make tcg_constant_folding do copy and constant propagation. It is a
>>> preparational work before actual constant folding.
>>>
>>> Signed-off-by: Kirill Batuzov<batuzovk@ispras.ru>
>>> ---
>>>  tcg/optimize.c |  182
>>> +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
>>>  1 files changed, 180 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/tcg/optimize.c b/tcg/optimize.c
>>> index c7c7da9..f8afe71 100644
>>> --- a/tcg/optimize.c
>>> +++ b/tcg/optimize.c
>>>
>>
>> ...
>>
>> This patch breaks QEMU on 32 bit hosts (tested on 386 Linux
>> and w32 hosts). Simply running qemu (BIOS only) terminates
>> with abort(). As the error is easy to reproduce, I don't provide
>> a stack frame here.
>
> I can't reproduce, i386/Linux and win32 versions of i386, Sparc32 and
> Sparc64 emulators work fine.
>
> Maybe you have a stale build (bug in Makefile dependencies)?

Sorry, an important information was wrong / missing in my report.
It's not qemu, but qemu-system-x86_64 which fails to work.

I just tested it once more with a new build:

$ bin/x86_64-softmmu/qemu-system-x86_64 -L pc-bios
/qemu/tcg/tcg.c:1646: tcg fatal error
Abgebrochen

Cheers,
Stefan