__Pyx_PyInt_TrueDivideObjC: switch comparison order

[Nikratio]

The current order results in compiler warnings on 32 bit machines, e.g.

src/llfuse.c: In function '__Pyx_PyInt_TrueDivideObjC':
src/llfuse.c:43980:17: warning: left shift count >= width of type
if (8 * sizeof(long) <= 53 || (__Pyx_sst_abs(size) <= 52 / PyLong_SHIFT) || likely(labs(a) <= (1L << 53))) {

Switching the order so that the left shift is closer to the sizeof test
avoids the warning, presumably because it makes it easier for the
compiler to see that the left shift is only executed on 64 bit.

Thanks to Christian Neukirchen for doing most of the work!

[Nikratio]

See also https://bitbucket.org/nikratio/python-llfuse/issues/76/conversion-errors-on-32bit

[scoder]

I'm not opposed to this, but the problem is, warnings that go away with one C compiler when moving around code may not go away (or may even appear) with another. gcc and clang tend to be unequal competitors here, for example.

I faintly recall there being some (CPython?) preprocessor macros that could hide that code entirely on 32bit-long platforms. They might provide a better fix.

[scoder]

Hmm, actually, reading through the comments in the ticket makes this appear quite reasonable. Thanks to Christian and you for figuring this out.