1637   u16 flags1;         /* Initial flags for P1 */  in sqlite3VdbeExec()  local
1645   flags1 = pIn1->flags;  in sqlite3VdbeExec()
1646   testcase( flags1 & MEM_Null );  in sqlite3VdbeExec()
1648   if( (flags1 | pIn2->flags) & MEM_Null ){  in sqlite3VdbeExec()
1652   if( (flags1 & (MEM_Str|MEM_Blob))==0 ){  in sqlite3VdbeExec()
1654     flags1 = pIn1->flags & ~MEM_Str;  in sqlite3VdbeExec()
1655   }else if( (flags1 & MEM_Zero)!=0 ){  in sqlite3VdbeExec()
1657     flags1 = pIn1->flags & ~MEM_Str;  in sqlite3VdbeExec()
1681   assert( (pIn1->flags & MEM_Dyn) == (flags1 & MEM_Dyn) );  in sqlite3VdbeExec()
1682   pIn1->flags = flags1;  in sqlite3VdbeExec()
2121   u16 flags1;         /* Copy of initial value of pIn1->flags */  in sqlite3VdbeExec()  local
2126   flags1 = pIn1->flags;  in sqlite3VdbeExec()
2128   if( (flags1 & flags3 & MEM_Int)!=0 ){  in sqlite3VdbeExec()
2153   if( (flags1 | flags3)&MEM_Null ){  in sqlite3VdbeExec()
2160       assert( (flags1 & MEM_Cleared)==0 );  in sqlite3VdbeExec()
2163       if( (flags1&flags3&MEM_Null)!=0  in sqlite3VdbeExec()
2187       if( (flags1 | flags3)&MEM_Str ){  in sqlite3VdbeExec()
2188         if( (flags1 & (MEM_Int|MEM_IntReal|MEM_Real|MEM_Str))==MEM_Str ){  in sqlite3VdbeExec()
2198       if( (flags1 & MEM_Str)==0 && (flags1&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){  in sqlite3VdbeExec()
2203         testcase( (flags1&MEM_Dyn) != (pIn1->flags&MEM_Dyn) );  in sqlite3VdbeExec()
2204         flags1 = (pIn1->flags & ~MEM_TypeMask) | (flags1 & MEM_TypeMask);  in sqlite3VdbeExec()
2205         if( pIn1==pIn3 ) flags3 = flags1 | MEM_Str;  in sqlite3VdbeExec()
2240   assert( (pIn1->flags & MEM_Dyn) == (flags1 & MEM_Dyn) );  in sqlite3VdbeExec()
2241   pIn1->flags = flags1;  in sqlite3VdbeExec()