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Fixed bug #76094 (Access violation when using opcache)

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This commit is contained in:
Xinchen Hui 2018-03-15 11:17:00 +08:00
parent 84881c654e
commit 4758164ac5
3 changed files with 31 additions and 1 deletions
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3
NEWS
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@ -6,6 +6,9 @@ PHP NEWS
. Fixed bug #76088 (ODBC functions are not available by default on Windows).
(cmb)
- Opcache:
. Fixed bug #76094 (Access violation when using opcache). (Laruence)
- Standard:
. Fixed bug #74139 (mail.add_x_header default inconsistent with docs). (cmb)

3
ext/opcache/Optimizer/dce.c
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@ -356,7 +356,8 @@ static zend_bool dce_instr(context *ctx, zend_op *opline, zend_ssa_op *ssa_op) {
if ((opline->op1_type & (IS_VAR|IS_TMP_VAR))&& !is_var_dead(ctx, ssa_op->op1_use)) {
if (!try_remove_var_def(ctx, ssa_op->op1_use, ssa_op->op1_use_chain, opline)) {
if (ssa->var_info[ssa_op->op1_use].type & (MAY_BE_STRING|MAY_BE_ARRAY|MAY_BE_OBJECT|MAY_BE_RESOURCE|MAY_BE_REF)) {
if (ssa->var_info[ssa_op->op1_use].type & (MAY_BE_STRING|MAY_BE_ARRAY|MAY_BE_OBJECT|MAY_BE_RESOURCE|MAY_BE_REF)
&& opline->opcode != ZEND_CASE) {
free_var = ssa_op->op1_use;
free_var_type = opline->op1_type;
}

26
ext/opcache/tests/bug76094.phpt Normal file
View File

@ -0,0 +1,26 @@
--TEST--
Bug #76094 (Access violation when using opcache)
--INI--
opcache.enable=1
opcache.enable_cli=1
opcache.optimization_level=-1
--SKIPIF--
<?php require_once('skipif.inc'); ?>
--FILE--
<?php
function MetaType($t)
{
switch (strtoupper($t)) {
case PHP_INT_MAX :
return 1;
case 0:
default:
return 0;
}
}
var_dump(MetaType("aa"));
?>
--EXPECT--
int(0)