com php-src: Allow SSA construction with source information about CV used as result (DFG fix): ext/opcache/Optimizer/zend_dfg.c

Commit:    f07e4c033cf4edda8dcbf14c5a964e4d283fa8a8
Author:    Dmitry Stogov <[email protected]>         Thu, 30 Mar 2017 21:24:29 +0300
Parents:   6af1ffb57d097ae48ae11256c3323ecf2f042fe6
Branches:  master

Link:       http://git.php.net/?p=php-src.git;a=commitdiff;h=f07e4c033cf4edda8dcbf14c5a964e4d283fa8a8

Log:
Allow SSA construction with source information about CV used as result (DFG fix)

Changed paths:
  M  ext/opcache/Optimizer/zend_dfg.c


Diff:
diff --git a/ext/opcache/Optimizer/zend_dfg.c b/ext/opcache/Optimizer/zend_dfg.c
index 374c814..6e6997b 100644
--- a/ext/opcache/Optimizer/zend_dfg.c
+++ b/ext/opcache/Optimizer/zend_dfg.c
@@ -191,6 +191,10 @@ op2_use:
 				}
 				if (opline->result_type & (IS_CV|IS_VAR|IS_TMP_VAR)) {
 					var_num = EX_VAR_TO_NUM(opline->result.var);
+					if ((build_flags & ZEND_SSA_USE_CV_RESULTS)
+					 && opline->result_type == IS_CV) {
+						DFG_SET(use, set_size, j, var_num);
+					}
 					DFG_SET(def, set_size, j, var_num);
 				}
 			}