Merge branch 'PHP-7.1' into PHP-7.2

* PHP-7.1:
  Fixed bug #75608 ("Narrowing occurred during type inference" error)

Author: dstogov

NEWS

@@ -18,6 +18,8 @@ PHP                                                                        NEWS
     requests). (Remi)
 
 - Opcache:
+  . Fixed bug #75608 ("Narrowing occurred during type inference" error).
+    (Laruence, Dmitry)
   . Fixed bug #75570 ("Narrowing occurred during type inference" error).
     (Dmitry)
   . Fixed bug #75556 (Invalid opcode 138/1/1). (Laruence)

ext/opcache/Optimizer/zend_inference.c

@@ -2926,7 +2926,7 @@ static int zend_update_type_info(const zend_op_array *op_array,
 			break;
 		case ZEND_FE_FETCH_R:
 		case ZEND_FE_FETCH_RW:
-			tmp = (t2 & MAY_BE_REF);
+			tmp = t2;
 			if (t1 & MAY_BE_OBJECT) {
 				if (opline->opcode == ZEND_FE_FETCH_RW) {
 					tmp |= MAY_BE_REF | MAY_BE_ANY | MAY_BE_ARRAY_KEY_ANY | MAY_BE_ARRAY_OF_ANY | MAY_BE_ARRAY_OF_REF;
@@ -2951,7 +2951,7 @@ static int zend_update_type_info(const zend_op_array *op_array,
 			}
 			UPDATE_SSA_TYPE(tmp, ssa_ops[i].op2_def);
 			if (ssa_ops[i].result_def >= 0) {
-				tmp = 0;
+				tmp = (ssa_ops[i].result_use >= 0) ? RES_USE_INFO() : 0;
 				if (t1 & MAY_BE_OBJECT) {
 					tmp |= MAY_BE_RC1 | MAY_BE_RCN | MAY_BE_ANY | MAY_BE_ARRAY_KEY_ANY | MAY_BE_ARRAY_OF_ANY | MAY_BE_ARRAY_OF_REF;
 				}

ext/opcache/tests/bug75608.phpt

@@ -0,0 +1,33 @@
+--TEST--
+Bug #75608 ("Narrowing occurred during type inference" error)
+--FILE--
+<?php
+class ReactionRatingService
+{
+    public function calculateBoostPoints()
+    {
+        while ($reaction = $reactions) {
+            $reactionRatings = $this->validFunction();
+
+            $totalWeight  = 0;
+            $runningScore = 0;
+            $queue        = [];
+            foreach ($reactionRatings as $ratingData) {
+                if ($runningScore != $reaction['Score']) {
+                    if ( ! $ratingData['BoostEarned']) {
+                        $queue[] = $ratingData['UserID'];
+                    }
+                } else {
+                    foreach ($queue as $userId) {
+                        $userBoostPointsRecalculate[$userId][] = $reaction['ID'];
+                    }
+                }
+                $totalWeight += $ratingData['Weight'];
+            }
+        }
+    }
+}
+?>
+OK
+--EXPECT--
+OK