124624   int regPrev = iMem;          /* MUST BE LAST (see below) */  local
124744     sqlite3TouchRegister(pParse, regPrev+nColTest);
124807         sqlite3VdbeAddOp2(v, OP_NotNull, regPrev, endDistinctTest);
124816         sqlite3VdbeAddOp4(v, OP_Ne, regTemp, 0, regPrev+i, pColl, P4_COLLSEQ);
124834         sqlite3VdbeAddOp3(v, OP_Column, iIdxCur, i, regPrev+i);
124876         j3 = sqlite3VdbeAddOp4Int(v, OP_SeekGT, iIdxCur, 0, regPrev, 1);
149942       int regPrev;            /* Previous row content */  local
149945       iRet = regPrev = pParse->nMem+1;
149952           sqlite3VdbeAddOp3(v, OP_Ne, regElem+i, iJump, regPrev+i);
149955           sqlite3VdbeAddOp3(v, OP_Eq, regElem+i, addrRepeat, regPrev+i);
149962       sqlite3VdbeAddOp3(v, OP_Copy, regElem, regPrev, nResultCol-1);
152105   int regPrev,            /* Previous result register.  No uniqueness if 0 */  argument
152120   if( regPrev ){
152122     addr1 = sqlite3VdbeAddOp1(v, OP_IfNot, regPrev); VdbeCoverage(v);
152123     addr2 = sqlite3VdbeAddOp4(v, OP_Compare, pIn->iSdst, regPrev+1, pIn->nSdst,
152127     sqlite3VdbeAddOp3(v, OP_Copy, pIn->iSdst, regPrev+1, pIn->nSdst-1);
152128     sqlite3VdbeAddOp2(v, OP_Integer, 1, regPrev);
152420   int regPrev;          /* A range of registers to hold previous output */  local
152502     regPrev = 0;
152506     regPrev = pParse->nMem+1;
152508     sqlite3VdbeAddOp2(v, OP_Integer, 0, regPrev);
152603                  regPrev, pKeyDup, labelEnd);
152612                  regPrev, pKeyDup, labelEnd);