Introduce and use ZEND_VM_INLINE_HANDLER() to avoid ZEND_RETURN exception

Author: dstogov

Zend/zend_vm_def.h

@@ -4142,7 +4142,7 @@ ZEND_VM_COLD_CONST_HANDLER(124, ZEND_VERIFY_RETURN_TYPE, CONST|TMP|VAR|UNUSED|CV
 	ZEND_VM_NEXT_OPCODE_CHECK_EXCEPTION();
 }
 
-ZEND_VM_HOT_HANDLER(62, ZEND_RETURN, CONST|TMP|VAR|CV, ANY)
+ZEND_VM_INLINE_HANDLER(62, ZEND_RETURN, CONST|TMP|VAR|CV, ANY)
 {
 	USE_OPLINE
 	zval *retval_ptr;

Zend/zend_vm_gen.php

@@ -1069,7 +1069,7 @@ function skip_extra_spec_function($op1, $op2, $extra_spec) {
 }
 
 function is_hot_handler($hot, $op1, $op2, $extra_spec) {
-	if ($hot === 'HOT_') {
+	if ($hot === 'HOT_' || $hot === 'INLINE_') {
 		return true;
 	} else if ($hot === 'HOT_NOCONST_') {
 		return ($op1 !== 'CONST');
@@ -1099,8 +1099,7 @@ function is_cold_handler($hot, $op1, $op2, $extra_spec) {
 }
 
 function is_inline_hybrid_handler($name, $hot, $op1, $op2, $extra_spec) {
-	return $name == "ZEND_RETURN";
-	//return $hot && is_hot_handler($hot, $op1, $op2, $extra_spec);
+	return ($hot === 'INLINE_');
 }
 
 // Generates opcode handler
@@ -2391,6 +2390,7 @@ function gen_vm($def, $skel) {
 	foreach ($in as $line) {
 		++$lineno;
 		if (strpos($line,"ZEND_VM_HANDLER(") === 0 ||
+		    strpos($line,"ZEND_VM_INLINE_HANDLER(") === 0 ||
 		    strpos($line,"ZEND_VM_HOT_HANDLER(") === 0 ||
 		    strpos($line,"ZEND_VM_HOT_NOCONST_HANDLER(") === 0 ||
 		    strpos($line,"ZEND_VM_HOT_SEND_HANDLER(") === 0 ||
@@ -2400,7 +2400,7 @@ function gen_vm($def, $skel) {
 		    strpos($line,"ZEND_VM_COLD_CONSTCONST_HANDLER(") === 0) {
 		  // Parsing opcode handler's definition
 			if (preg_match(
-					"/^ZEND_VM_(HOT_|HOT_OBJ_|HOT_SEND_|HOT_NOCONST_|COLD_|COLD_CONST_|COLD_CONSTCONST_)?HANDLER\(\s*([0-9]+)\s*,\s*([A-Z_]+)\s*,\s*([A-Z_|]+)\s*,\s*([A-Z_|]+)\s*(,\s*([A-Z_|]+)\s*)?(,\s*SPEC\(([A-Z_|=,]+)\)\s*)?\)/",
+					"/^ZEND_VM_(HOT_|INLINE_|HOT_OBJ_|HOT_SEND_|HOT_NOCONST_|COLD_|COLD_CONST_|COLD_CONSTCONST_)?HANDLER\(\s*([0-9]+)\s*,\s*([A-Z_]+)\s*,\s*([A-Z_|]+)\s*,\s*([A-Z_|]+)\s*(,\s*([A-Z_|]+)\s*)?(,\s*SPEC\(([A-Z_|=,]+)\)\s*)?\)/",
 					$line,
 					$m) == 0) {
 				die("ERROR ($def:$lineno): Invalid ZEND_VM_HANDLER definition.\n");
@@ -2443,13 +2443,14 @@ function gen_vm($def, $skel) {
 			$helper = null;
 			$list[$lineno] = array("handler"=>$handler);
 		} else if (strpos($line,"ZEND_VM_TYPE_SPEC_HANDLER(") === 0 ||
+		           strpos($line,"ZEND_VM_INLINE_TYPE_SPEC_HANDLER(") === 0 ||
 		           strpos($line,"ZEND_VM_HOT_TYPE_SPEC_HANDLER(") === 0 ||
 		           strpos($line,"ZEND_VM_HOT_NOCONST_TYPE_SPEC_HANDLER(") === 0 ||
 		           strpos($line,"ZEND_VM_HOT_SEND_TYPE_SPEC_HANDLER(") === 0 ||
 		           strpos($line,"ZEND_VM_HOT_OBJ_TYPE_SPEC_HANDLER(") === 0) {
 		  // Parsing opcode handler's definition
 			if (preg_match(
-					"/^ZEND_VM_(HOT_|HOT_OBJ_|HOT_SEND_|HOT_NOCONST_)?TYPE_SPEC_HANDLER\(\s*([A-Z_]+)\s*,\s*((?:[^(,]|\([^()]*|(?R)*\))*),\s*([A-Za-z_]+)\s*,\s*([A-Z_|]+)\s*,\s*([A-Z_|]+)\s*(,\s*([A-Z_|]+)\s*)?(,\s*SPEC\(([A-Z_|=,]+)\)\s*)?\)/",
+					"/^ZEND_VM_(HOT_|INLINE_|HOT_OBJ_|HOT_SEND_|HOT_NOCONST_)?TYPE_SPEC_HANDLER\(\s*([A-Z_]+)\s*,\s*((?:[^(,]|\([^()]*|(?R)*\))*),\s*([A-Za-z_]+)\s*,\s*([A-Z_|]+)\s*,\s*([A-Z_|]+)\s*(,\s*([A-Z_|]+)\s*)?(,\s*SPEC\(([A-Z_|=,]+)\)\s*)?\)/",
 					$line,
 					$m) == 0) {
 				die("ERROR ($def:$lineno): Invalid ZEND_VM_TYPE_HANDLER_HANDLER definition.\n");