Re: [Qemu-devel] [PATCH 1/8] target-arm: Fixes for several shift instructions: VRSHL, VRSHR, VRSHRN, VSHLL, VRSRA.

[Peter Maydell]

On 31 January 2011 15:59, Aurelien Jarno <address@hidden> wrote:
> Christophe Lyon a écrit :
>> Well, I can't reproduce this error :-(
>> For the record, I configure with --target-list=arm-softmmu,arm-linux-user 
>> --disable-bluez --enable-debug --disable-sdl and point --host-cc and --cc to 
>> GCC-4.5.1.
>>
>
> It seems the problems come from here, if I add --enable-debug, I am not
> able to reproduce the problem anymore. I don't understand why though.

--enable-debug turns off optimisation (ie does not pass -O2); a number
of gcc's warnings, including this one, are only done in the dataflow analysis
pass and so will not be generated unless you have optimisation enabled.

-- PMM