Set expectation to reduce hot code fragmentation

dstogov · dstogov · commit 0e3d4911fae0 · 2019-07-10T18:29:35.000+03:00
diff --git a/Zend/zend_gc.h b/Zend/zend_gc.h
@@ -71,7 +71,7 @@ END_EXTERN_C()
 
 static zend_always_inline void gc_check_possible_root(zend_refcounted *ref)
 {
-	if (GC_TYPE_INFO(ref) == IS_REFERENCE) {
+	if (EXPECTED(GC_TYPE_INFO(ref) == IS_REFERENCE)) {
 		zval *zv = &((zend_reference*)ref)->val;
 
 		if (!Z_COLLECTABLE_P(zv)) {

Original file line number	Diff line number	Diff line change
`@@ -71,7 +71,7 @@ END_EXTERN_C()`
`71`	`71`
`72`	`72`	`static zend_always_inline void gc_check_possible_root(zend_refcounted *ref)`
`73`	`73`	`{`
`74`		`- if (GC_TYPE_INFO(ref) == IS_REFERENCE) {`
	`74`	`+ if (EXPECTED(GC_TYPE_INFO(ref) == IS_REFERENCE)) {`
`75`	`75`	`zval zv = &((zend_reference)ref)->val;`
`76`	`76`
`77`	`77`	`if (!Z_COLLECTABLE_P(zv)) {`