* m68k: don't do replace spilling if spilltemp.offset exceeds 16 bits on Coldfire targets.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28296 3ad0048d-3df7-0310-abae-a5850022a9f2
* m68k: further improved code generation for comparison nodes, support LOC_REFERENCE for 32-bit compares and omit low dword, when possible, for 64-bit ones.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28297 3ad0048d-3df7-0310-abae-a5850022a9f2