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<?php // bench is_null vs null comparison for ($i=1; $i<100000; $i++) { if ($i === null) { die('error'); } }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
2 jumps found. (Code = 44) Position 1 = 8, Position 2 = 2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 5
Branch analysis from position: 4
1 jumps found. (Code = 79) Position 1 = -2
Branch analysis from position: 5
2 jumps found. (Code = 44) Position 1 = 8, Position 2 = 2
Branch analysis from position: 8
Branch analysis from position: 2
filename:       /in/b3LmG
function name:  (null)
number of ops:  9
compiled vars:  !0 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 1
          1      > JMP                                                      ->6
    4     2    >   TYPE_CHECK                                    2          !0
          3      > JMPZ                                                     ~2, ->5
    5     4    > > EXIT                                                     'error'
    3     5    >   PRE_INC                                                  !0
          6    >   IS_SMALLER                                               !0, 100000
          7      > JMPNZ                                                    ~4, ->2
    7     8    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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