Look into converting $x === 'v1' && $x === V2 && ... to in_array($x, [...], true) #9
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TysonAndre
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May 31, 2021
The following opcodes would be generated:
...
BB1:
0003 JMP BB3
BB2:
0004 INIT_FCALL 1 96 string("chr")
0005 #10.T3 [long] = SR #3.CV0($int) [long] #7.CV2($i) ...
0006 #11.T4 [long] RANGE[0..127] = BW_AND #10.T3 [long] ...
0007 #12.T3 [long] RANGE[128..255] = BW_OR #11.T4 [long] ...
0008 SEND_VAL #12.T3 [long] RANGE[128..255] 1
0009 #13.V3 [ref, rc1, rcn, any] = DO_ICALL
0010 ASSIGN_OP (CONCAT) #6.CV1($out) [rc1, rcn, string]
0011 ADD #7.CV2($i)... int(7) #7.CV2($i) ... -> #15.CV2($i) ...
BB3:
0012 #8.T4 [long] = SR #3.CV0($int) #7.CV2($i) [long, double]
0013 #9.T3 [bool] RANGE[0..1] = IS_SMALLER int(128) #8.T4
0014 JMPNZ #9.T3 [bool] RANGE[0..1] BB2
...
Main changes are:
1. SR opcode covers new path in function zend_jit_long_math_helper().
2. BW_AND and BW_OR opcodes are supported. See macro LONG_OP.
3. Function zend_jit_concat_helper() is added to support ASSIGN_OP
opcode. Speficically, CONCAT and FAST_CONCAT is supported for statements
"$out .= ...".
4. New path is covered in function zend_jit_cmp_long_long() by
IS_SMALLER opcode.
5. New path is covered in macros ZVAL_PTR_DTOR and ZVAL_DTOR_FUNC when
leaving.
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