* src/SDCCpeeph.c (callFuncByName): support combined peephole rule

* src/SDCCpeeph.c (callFuncByName): support combined peephole rule
  conditions,
  (setFromConditionArgs): friendly operand parser for peephole rules,
  (operandBaseName, operandsNotRelated): new peephole condition
  "operandsNotRelated" -- similar to "operandsNotSame", but takes
  architecture specific register naming into account, handles n-way
  comparisons, and supports quoted literals
* src/mcs51/peeph.def: restored rule 177.d with an extra condition

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3596 4a8a32a2-be11-0410-ad9d-d568d2c75423