PowerPC : GCC2 optimises better than GCC4???

[Mark Colby]

>>> Yabbut, how come RTL cse can handle it in x86_64, but PPC not?
>> 
>> Probably because the RTL on x86_64 uses and's and ior's, but PPC uses
>> set's of zero_extract's (insvsi).
>
> Aha!  Yes, that'll probably be it.  It should be easy to fix cse to
> recognize those too.
>
> Andrew

I'm not familiar with the gcc source yet, but just in case I get the time to look at this, could anyone give me a file/line ref to dive into and examine? Thanks for your attention on this.

Mark


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