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Merge branch 'PHP-7.4'

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* PHP-7.4:
  Fixed incorrect overflow detection
This commit is contained in:
Dmitry Stogov
2020-02-27 23:38:19 +03:00
parent 819a872cfa cb88184420
commit 63761d1133
1 changed files with 2 additions and 2 deletions
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4
ext/opcache/Optimizer/zend_inference.c
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@@ -2725,10 +2725,10 @@ static int zend_update_type_info(const zend_op_array *op_array,
}
if ((t1 & (MAY_BE_ANY|MAY_BE_UNDEF)) == MAY_BE_LONG) {
if (!ssa_var_info[ssa_ops[i].op1_use].has_range ||
(opline->opcode == ZEND_PRE_DEC &&
(opline->opcode == ZEND_POST_DEC &&
(ssa_var_info[ssa_ops[i].op1_use].range.underflow ||
ssa_var_info[ssa_ops[i].op1_use].range.min == ZEND_LONG_MIN)) ||
(opline->opcode == ZEND_PRE_INC &&
(opline->opcode == ZEND_POST_INC &&
(ssa_var_info[ssa_ops[i].op1_use].range.overflow ||
ssa_var_info[ssa_ops[i].op1_use].range.max == ZEND_LONG_MAX))) {
/* may overflow */