899       int regPrev;            /* Previous row content */  in codeDistinct()  local
902       iRet = regPrev = pParse->nMem+1;  in codeDistinct()
909           sqlite3VdbeAddOp3(v, OP_Ne, regElem+i, iJump, regPrev+i);  in codeDistinct()
912           sqlite3VdbeAddOp3(v, OP_Eq, regElem+i, addrRepeat, regPrev+i);  in codeDistinct()
919       sqlite3VdbeAddOp3(v, OP_Copy, regElem, regPrev, nResultCol-1);  in codeDistinct()
3194   int regPrev,            /* Previous result register.  No uniqueness if 0 */  in generateOutputSubroutine()  argument
3207   if( regPrev ){  in generateOutputSubroutine()
3209     addr1 = sqlite3VdbeAddOp1(v, OP_IfNot, regPrev); VdbeCoverage(v);  in generateOutputSubroutine()
3210     addr2 = sqlite3VdbeAddOp4(v, OP_Compare, pIn->iSdst, regPrev+1, pIn->nSdst,  in generateOutputSubroutine()
3214     sqlite3VdbeAddOp3(v, OP_Copy, pIn->iSdst, regPrev+1, pIn->nSdst-1);  in generateOutputSubroutine()
3215     sqlite3VdbeAddOp2(v, OP_Integer, 1, regPrev);  in generateOutputSubroutine()
3424   int regPrev;          /* A range of registers to hold previous output */  in multiSelectOrderBy()  local
3505     regPrev = 0;  in multiSelectOrderBy()
3509     regPrev = pParse->nMem+1;  in multiSelectOrderBy()
3511     sqlite3VdbeAddOp2(v, OP_Integer, 0, regPrev);  in multiSelectOrderBy()
3606                  regPrev, pKeyDup, labelEnd);  in multiSelectOrderBy()
3615                  regPrev, pKeyDup, labelEnd);  in multiSelectOrderBy()