* MIPS: set pi_do_call flag for assembler procedures with stackframes, so in PIC mode it further receives pi_needs_got in PIC mode and allocates the GP save temp.
* Deallocate GP save temp in epilogue to avoid warnings when compiled with -dEXTDEBUG
* g_concatcopy: don't check alignment, this allows single byte or word locations to be copied with 2 instructions. Larger unaligned references are supposed to be handled in g_concatcopy_unaligned instead.


git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25147 3ad0048d-3df7-0310-abae-a5850022a9f2
+ MIPS: started the peephole optimizer.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25148 3ad0048d-3df7-0310-abae-a5850022a9f2