2803   int regEnd = 0;                 /* Value of <expr> FOLLOWING */  in sqlite3WindowCodeStep()  local
2877     regEnd = ++pParse->nMem;  in sqlite3WindowCodeStep()
2936   if( regEnd ){  in sqlite3WindowCodeStep()
2937     sqlite3ExprCode(pParse, pMWin->pEnd, regEnd);  in sqlite3WindowCodeStep()
2938     windowCheckValue(pParse, regEnd, 1 + (pMWin->eFrmType==TK_RANGE?3:0));  in sqlite3WindowCodeStep()
2943     int addrGe = sqlite3VdbeAddOp3(v, op, regStart, 0, regEnd);  in sqlite3WindowCodeStep()
2954   if( pMWin->eStart==TK_FOLLOWING && pMWin->eFrmType!=TK_RANGE && regEnd ){  in sqlite3WindowCodeStep()
2956     sqlite3VdbeAddOp3(v, OP_Subtract, regStart, regEnd, regStart);  in sqlite3WindowCodeStep()
2988         windowCodeRangeTest(&s, OP_Ge, s.current.csr, regEnd, s.end.csr, lbl);  in sqlite3WindowCodeStep()
2994         windowCodeOp(&s, WINDOW_RETURN_ROW, regEnd, 0);  in sqlite3WindowCodeStep()
3001     windowCodeOp(&s, WINDOW_AGGSTEP, regEnd, 0);  in sqlite3WindowCodeStep()
3012         if( regEnd ){  in sqlite3WindowCodeStep()
3014           windowCodeRangeTest(&s, OP_Ge, s.current.csr, regEnd, s.end.csr, lbl);  in sqlite3WindowCodeStep()
3018         if( regEnd ){  in sqlite3WindowCodeStep()
3023         if( regEnd ){  in sqlite3WindowCodeStep()
3024           addr = sqlite3VdbeAddOp3(v, OP_IfPos, regEnd, 0, 1);  in sqlite3WindowCodeStep()
3029         if( regEnd ) sqlite3VdbeJumpHere(v, addr);  in sqlite3WindowCodeStep()
3049     windowCodeOp(&s, WINDOW_AGGSTEP, regEnd, 0);  in sqlite3WindowCodeStep()
3070       addrBreak1 = windowCodeOp(&s, WINDOW_RETURN_ROW, regEnd, 1);  in sqlite3WindowCodeStep()