Eliminate run-time check

Author: dstogov

ext/opcache/jit/zend_jit_x86.dasc

@@ -8015,11 +8015,18 @@ static int zend_jit_do_fcall(dasm_State **Dst, const zend_op *opline, const zend
 #if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
 				|	mov r2, aword [r2]
 #elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
-				|	test r2, 1
-				|	jz >1
-				|	MEM_OP2_2_ZTS add, r2, aword, compiler_globals, map_ptr_base, r1
-				|1:
-				|	mov	r2, aword [r2]
+				if (func) {
+					if (func->op_array.fn_flags & ZEND_ACC_IMMUTABLE) {
+						|	MEM_OP2_2_ZTS add, r2, aword, compiler_globals, map_ptr_base, r1
+					}
+					|	mov	r2, aword [r2]
+				} else {
+					|	test r2, 1
+					|	jz >1
+					|	MEM_OP2_2_ZTS add, r2, aword, compiler_globals, map_ptr_base, r1
+					|1:
+					|	mov	r2, aword [r2]
+				}
 #else
 # error "Unknown ZEND_MAP_PTR_KIND"
 #endif