Eliminate exception checks

Author: dstogov

Zend/zend_vm_def.h

@@ -1989,7 +1989,13 @@ ZEND_VM_HOT_OBJ_HANDLER(82, ZEND_FETCH_OBJ_R, CONST|TMPVAR|UNUSED|THIS|CV, CONST
 				if (EXPECTED(IS_VALID_PROPERTY_OFFSET(prop_offset))) {
 					retval = OBJ_PROP(zobj, prop_offset);
 					if (EXPECTED(Z_TYPE_INFO_P(retval) != IS_UNDEF)) {
-						ZEND_VM_C_GOTO(fetch_obj_r_copy);
+						if (!ZEND_VM_SPEC || (OP1_TYPE & (IS_TMP_VAR|IS_VAR))) {
+							ZEND_VM_C_GOTO(fetch_obj_r_copy);
+						} else {
+ZEND_VM_C_LABEL(fetch_obj_r_fast_copy):
+							ZVAL_COPY_DEREF(EX_VAR(opline->result.var), retval);
+							ZEND_VM_NEXT_OPCODE();
+						}
 					}
 				} else if (EXPECTED(zobj->properties != NULL)) {
 					if (!IS_UNKNOWN_DYNAMIC_PROPERTY_OFFSET(prop_offset)) {
@@ -2004,7 +2010,11 @@ ZEND_VM_HOT_OBJ_HANDLER(82, ZEND_FETCH_OBJ_R, CONST|TMPVAR|UNUSED|THIS|CV, CONST
 						          EXPECTED(p->key != NULL) &&
 						          EXPECTED(zend_string_equal_content(p->key, Z_STR_P(offset)))))) {
 								retval = &p->val;
-								ZEND_VM_C_GOTO(fetch_obj_r_copy);
+								if (!ZEND_VM_SPEC || (OP1_TYPE & (IS_TMP_VAR|IS_VAR))) {
+									ZEND_VM_C_GOTO(fetch_obj_r_copy);
+								} else {
+									ZEND_VM_C_GOTO(fetch_obj_r_fast_copy);
+								}
 							}
 						}
 						CACHE_PTR_EX(cache_slot + 1, (void*)ZEND_DYNAMIC_PROPERTY_OFFSET);
@@ -2013,7 +2023,11 @@ ZEND_VM_HOT_OBJ_HANDLER(82, ZEND_FETCH_OBJ_R, CONST|TMPVAR|UNUSED|THIS|CV, CONST
 					if (EXPECTED(retval)) {
 						uintptr_t idx = (char*)retval - (char*)zobj->properties->arData;
 						CACHE_PTR_EX(cache_slot + 1, (void*)ZEND_ENCODE_DYN_PROP_OFFSET(idx));
-						ZEND_VM_C_GOTO(fetch_obj_r_copy);
+						if (!ZEND_VM_SPEC || (OP1_TYPE & (IS_TMP_VAR|IS_VAR))) {
+							ZEND_VM_C_GOTO(fetch_obj_r_copy);
+						} else {
+							ZEND_VM_C_GOTO(fetch_obj_r_fast_copy);
+						}
 					}
 				}
 			}
@@ -2131,7 +2145,13 @@ ZEND_VM_COLD_CONST_HANDLER(91, ZEND_FETCH_OBJ_IS, CONST|TMPVAR|UNUSED|THIS|CV, C
 				if (EXPECTED(IS_VALID_PROPERTY_OFFSET(prop_offset))) {
 					retval = OBJ_PROP(zobj, prop_offset);
 					if (EXPECTED(Z_TYPE_P(retval) != IS_UNDEF)) {
-						ZEND_VM_C_GOTO(fetch_obj_is_copy);
+						if (!ZEND_VM_SPEC || (OP1_TYPE & (IS_TMP_VAR|IS_VAR))) {
+							ZEND_VM_C_GOTO(fetch_obj_is_copy);
+						} else {
+ZEND_VM_C_LABEL(fetch_obj_is_fast_copy):
+							ZVAL_COPY(EX_VAR(opline->result.var), retval);
+							ZEND_VM_NEXT_OPCODE();
+						}
 					}
 				} else if (EXPECTED(zobj->properties != NULL)) {
 					if (!IS_UNKNOWN_DYNAMIC_PROPERTY_OFFSET(prop_offset)) {
@@ -2146,7 +2166,11 @@ ZEND_VM_COLD_CONST_HANDLER(91, ZEND_FETCH_OBJ_IS, CONST|TMPVAR|UNUSED|THIS|CV, C
 						          EXPECTED(p->key != NULL) &&
 						          EXPECTED(zend_string_equal_content(p->key, Z_STR_P(offset)))))) {
 								retval = &p->val;
-								ZEND_VM_C_GOTO(fetch_obj_is_copy);
+								if (!ZEND_VM_SPEC || (OP1_TYPE & (IS_TMP_VAR|IS_VAR))) {
+									ZEND_VM_C_GOTO(fetch_obj_is_copy);
+								} else {
+									ZEND_VM_C_GOTO(fetch_obj_is_fast_copy);
+								}
 							}
 						}
 						CACHE_PTR_EX(cache_slot + 1, (void*)ZEND_DYNAMIC_PROPERTY_OFFSET);
@@ -2155,7 +2179,11 @@ ZEND_VM_COLD_CONST_HANDLER(91, ZEND_FETCH_OBJ_IS, CONST|TMPVAR|UNUSED|THIS|CV, C
 					if (EXPECTED(retval)) {
 						uintptr_t idx = (char*)retval - (char*)zobj->properties->arData;
 						CACHE_PTR_EX(cache_slot + 1, (void*)ZEND_ENCODE_DYN_PROP_OFFSET(idx));
-						ZEND_VM_C_GOTO(fetch_obj_is_copy);
+						if (!ZEND_VM_SPEC || (OP1_TYPE & (IS_TMP_VAR|IS_VAR))) {
+							ZEND_VM_C_GOTO(fetch_obj_is_copy);
+						} else {
+							ZEND_VM_C_GOTO(fetch_obj_is_fast_copy);
+						}
 					}
 				}
 			}