php/archived-php-src
1
0
Fork 0
mirror of https://github.com/php/php-src.git synced 2026-03-24 16:22:37 +01:00
Code Issues Packages Projects Releases Wiki Activity

Avoid dangerous optimization

Browse Source
This commit is contained in:
Dmitry Stogov
2015-07-06 16:52:38 +03:00
parent 1a9f4f90da
commit 436b01e379
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
ext/opcache/Optimizer/block_pass.c
View File

@@ -762,7 +762,8 @@ static void zend_optimize_block(zend_code_block *block, zend_op_array *op_array,
*/
if (opline->opcode == ZEND_IS_EQUAL ||
opline->opcode == ZEND_IS_NOT_EQUAL ||
opline->opcode == ZEND_CASE) {
/* CASE variable will be deleted later by FREE, so we can't optimize it */
(opline->opcode == ZEND_CASE && (ZEND_OP1_TYPE(opline) & (IS_CONST|IS_CV)))) {
if (ZEND_OP1_TYPE(opline) == IS_CONST &&
(Z_TYPE(ZEND_OP1_LITERAL(opline)) == IS_FALSE ||
Z_TYPE(ZEND_OP1_LITERAL(opline)) == IS_TRUE)) {