* r24895 used wrong expression for swapping sides of comparison, and it went undetected by tests. Fixed.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25007 3ad0048d-3df7-0310-abae-a5850022a9f2
* MIPS: improved 64-bit comparisons by using cg.a_cmp_reg_reg_label, uses less instructions and registers when comparing with zero.


git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25008 3ad0048d-3df7-0310-abae-a5850022a9f2