Optimized strings concatenation.

ZEND_ADD_STRING/VAR/CHAR are replaced with ZEND_ROPE_INTI, ZEND_ROPE_ADD, ZEND_ROPE_END.
Instead of reallocation and copying string on each ZEND_ADD_STRING/VAR/CAHR, collect all the strings and then allocate and construct the resulting string once.

1 files changed, 4 insertions, 3 deletions

diff --git a/Zend/zend_vm_opcodes.h b/Zend/zend_vm_opcodes.h
index 86fe5590d6..84b7cd9882 100644
--- a/Zend/zend_vm_opcodes.h
+++ b/Zend/zend_vm_opcodes.h
@@ -85,9 +85,10 @@ END_EXTERN_C()
 #define ZEND_BRK                              50
 #define ZEND_CONT                             51
 #define ZEND_BOOL                             52
-#define ZEND_ADD_CHAR                         54
-#define ZEND_ADD_STRING                       55
-#define ZEND_ADD_VAR                          56
+#define ZEND_FAST_CONCAT                      53
+#define ZEND_ROPE_INIT                        54
+#define ZEND_ROPE_ADD                         55
+#define ZEND_ROPE_END                         56
 #define ZEND_BEGIN_SILENCE                    57
 #define ZEND_END_SILENCE                      58
 #define ZEND_INIT_FCALL_BY_NAME               59