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<?php error_reporting(E_ALL); ini_set('display_errors', '1'); function get_primes7($n) { if ($n < 2) return array(); if ($n == 2) return array(2); $s = range(3, $n, 2); $mroot = sqrt($n); $half = count($s); $i = 0; $m = 3; while ($m <= $mroot) { if ($s[$i]) { $j = (int)(($m*$m - 3) / 2); $s[$j] = 0; while ($j < $half) { $s[$j] = 0; $j += $m; } } $i = $i + 1; $m = 2*$i + 3; } $res = array(2); foreach ($s as $v) { if ($v) { $res[] = $v; } } return $res; } $res = array(); for ($i = 1; $i <= 10; ++$i) { $res = get_primes7(10000); print "Found ".count($res)." prime numbers.\n"; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 19
Branch analysis from position: 19
2 jumps found. (Code = 44) Position 1 = 21, Position 2 = 10
Branch analysis from position: 21
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
2 jumps found. (Code = 44) Position 1 = 21, Position 2 = 10
Branch analysis from position: 21
Branch analysis from position: 10
filename:       /in/DaAJ6
function name:  (null)
number of ops:  22
compiled vars:  !0 = $res, !1 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'error_reporting'
          1        SEND_VAL                                                 32767
          2        DO_ICALL                                                 
    3     3        INIT_FCALL                                               'ini_set'
          4        SEND_VAL                                                 'display_errors'
          5        SEND_VAL                                                 '1'
          6        DO_ICALL                                                 
   34     7        ASSIGN                                                   !0, <array>
   35     8        ASSIGN                                                   !1, 1
          9      > JMP                                                      ->19
   36    10    >   INIT_FCALL                                               'get_primes7'
         11        SEND_VAL                                                 10000
         12        DO_FCALL                                      0  $6      
         13        ASSIGN                                                   !0, $6
   37    14        COUNT                                            ~8      !0
         15        CONCAT                                           ~9      'Found+', ~8
         16        CONCAT                                           ~10     ~9, '+prime+numbers.%0A'
         17        ECHO                                                     ~10
   35    18        PRE_INC                                                  !1
         19    >   IS_SMALLER_OR_EQUAL                                      !1, 10
         20      > JMPNZ                                                    ~12, ->10
   38    21    > > RETURN                                                   1

Function get_primes7:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 7
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 42
Branch analysis from position: 42
2 jumps found. (Code = 44) Position 1 = 44, Position 2 = 22
Branch analysis from position: 44
2 jumps found. (Code = 77) Position 1 = 46, Position 2 = 51
Branch analysis from position: 46
2 jumps found. (Code = 78) Position 1 = 47, Position 2 = 51
Branch analysis from position: 47
2 jumps found. (Code = 43) Position 1 = 48, Position 2 = 50
Branch analysis from position: 48
1 jumps found. (Code = 42) Position 1 = 46
Branch analysis from position: 46
Branch analysis from position: 50
Branch analysis from position: 51
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 51
Branch analysis from position: 22
2 jumps found. (Code = 43) Position 1 = 24, Position 2 = 37
Branch analysis from position: 24
1 jumps found. (Code = 42) Position 1 = 35
Branch analysis from position: 35
2 jumps found. (Code = 44) Position 1 = 37, Position 2 = 32
Branch analysis from position: 37
2 jumps found. (Code = 44) Position 1 = 44, Position 2 = 22
Branch analysis from position: 44
Branch analysis from position: 22
Branch analysis from position: 32
2 jumps found. (Code = 44) Position 1 = 37, Position 2 = 32
Branch analysis from position: 37
Branch analysis from position: 32
Branch analysis from position: 37
filename:       /in/DaAJ6
function name:  get_primes7
number of ops:  54
compiled vars:  !0 = $n, !1 = $s, !2 = $mroot, !3 = $half, !4 = $i, !5 = $m, !6 = $j, !7 = $res, !8 = $v
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   RECV                                             !0      
    6     1        IS_SMALLER                                               !0, 2
          2      > JMPZ                                                     ~9, ->4
          3    > > RETURN                                                   <array>
    7     4    >   IS_EQUAL                                                 !0, 2
          5      > JMPZ                                                     ~10, ->7
          6    > > RETURN                                                   <array>
    8     7    >   INIT_FCALL                                               'range'
          8        SEND_VAL                                                 3
          9        SEND_VAR                                                 !0
         10        SEND_VAL                                                 2
         11        DO_ICALL                                         $11     
         12        ASSIGN                                                   !1, $11
    9    13        INIT_FCALL                                               'sqrt'
         14        SEND_VAR                                                 !0
         15        DO_ICALL                                         $13     
         16        ASSIGN                                                   !2, $13
   10    17        COUNT                                            ~15     !1
         18        ASSIGN                                                   !3, ~15
   11    19        ASSIGN                                                   !4, 0
   12    20        ASSIGN                                                   !5, 3
   13    21      > JMP                                                      ->42
   14    22    >   FETCH_DIM_R                                      ~19     !1, !4
         23      > JMPZ                                                     ~19, ->37
   15    24    >   MUL                                              ~20     !5, !5
         25        SUB                                              ~21     ~20, 3
         26        DIV                                              ~22     ~21, 2
         27        CAST                                          4  ~23     ~22
         28        ASSIGN                                                   !6, ~23
   16    29        ASSIGN_DIM                                               !1, !6
         30        OP_DATA                                                  0
   17    31      > JMP                                                      ->35
   18    32    >   ASSIGN_DIM                                               !1, !6
         33        OP_DATA                                                  0
   19    34        ASSIGN_OP                                     1          !6, !5
   17    35    >   IS_SMALLER                                               !6, !3
         36      > JMPNZ                                                    ~28, ->32
   22    37    >   ADD                                              ~29     !4, 1
         38        ASSIGN                                                   !4, ~29
   23    39        MUL                                              ~31     !4, 2
         40        ADD                                              ~32     ~31, 3
         41        ASSIGN                                                   !5, ~32
   13    42    >   IS_SMALLER_OR_EQUAL                                      !5, !2
         43      > JMPNZ                                                    ~34, ->22
   25    44    >   ASSIGN                                                   !7, <array>
   26    45      > FE_RESET_R                                       $36     !1, ->51
         46    > > FE_FETCH_R                                               $36, !8, ->51
   27    47    > > JMPZ                                                     !8, ->50
   28    48    >   ASSIGN_DIM                                               !7
         49        OP_DATA                                                  !8
   26    50    > > JMP                                                      ->46
         51    >   FE_FREE                                                  $36
   31    52      > RETURN                                                   !7
   32    53*     > RETURN                                                   null

End of function get_primes7

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
168.87 ms | 1411 KiB | 22 Q