[issue14249] unicodeobject.c: aliasing warnings

[Serhiy Storchaka]

Serhiy Storchaka <storchaka at gmail.com> added the comment:

What if add more hacking? If long integer already used for buffering and checking, let use it for swapping and splitting too.

With my patch (attached) codecs.utf_16_be_decode runs 5% faster (on 32-bit Linux, I was not tested 64-bit). And of cause no pointers -- no aliasing warnings.

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nosy: +storchaka
Added file: http://bugs.python.org/file24957/utf16_decoder_shift.patch

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