On 29/09/11 11:44, Gaetano Mendola wrote:
> On Thu, Sep 29, 2011 at 12:34 PM, Tom Hughes<[email protected]>  wrote:
>> On 29/09/11 11:09, Gaetano Mendola wrote:
>>
>>> I'm getting the following error running my application with valgrind:
>>>
>>> vex amd64->IR: unhandled instruction bytes: 0x48 0xF 0x5A 0x7 0x48 0xF
>>> 0x5A 0x4F
>>> ==31136== valgrind: Unrecognised instruction at address 0x1f2a2c20.
>>> ==31136==    at 0x1F2A2C20: ??? (in
>>> /opt/intel/composerxe-2011.1.107/ipp/lib/intel64/libippsy8.so.7.0)
>>> ==31136==    by 0x1F2A1FAE: y8_ownippsSum_32f (in
>>> /opt/intel/composerxe-2011.1.107/ipp/lib/intel64/libippsy8.so.7.0)
>>> ==31136==    by 0x1F2FDE5C: y8_ownippsMean_32f (in
>>> /opt/intel/composerxe-2011.1.107/ipp/lib/intel64/libippsy8.so.7.0)
>>> ==31136==    by 0x1F1A2D31: y8_ippsMean_32f (in
>>> /opt/intel/composerxe-2011.1.107/ipp/lib/intel64/libippsy8.so.7.0)
>>
>> That's CVTPS2PD which looks like it has been supported for ages. What
>> version of valgrind are you using?
>
> $ valgrind --version
> valgrind-3.7.0.SVN

Ah I see - the issue is that it has REX.W set (the 0x48 prefix) which is 
redundant for that instruction as only REX.R has any effect on it.

It has already been reported here:

https://bugs.kde.org/show_bug.cgi?id=278744

Tom

-- 
Tom Hughes ([email protected])
http://compton.nu/

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