Fix abstract trace consisency for FE_FETCH instruction

Author: dstogov

ext/opcache/jit/zend_jit_x86.dasc

@@ -3640,10 +3640,6 @@ static int zend_jit_trace_handler(dasm_State **Dst, const zend_op_array *op_arra
 						break;
 					case ZEND_FE_FETCH_R:
 					case ZEND_FE_FETCH_RW:
-						if (opline->op2_type == IS_CV) {
-							old_info = STACK_INFO(stack, EX_VAR_TO_NUM(opline->op2.var));
-							SET_STACK_TYPE(stack, EX_VAR_TO_NUM(opline->op2.var), IS_UNKNOWN, 1);
-						}
 						exit_opline = (trace->opline == opline + 1) ?
 							ZEND_OFFSET_TO_OPLINE(opline, opline->extended_value) :
 							opline + 1;
@@ -3652,6 +3648,16 @@ static int zend_jit_trace_handler(dasm_State **Dst, const zend_op_array *op_arra
 				}
 			}
 
+			switch (opline->opcode) {
+				case ZEND_FE_FETCH_R:
+				case ZEND_FE_FETCH_RW:
+					if (opline->op2_type != IS_UNUSED) {
+						old_info = STACK_INFO(stack, EX_VAR_TO_NUM(opline->op2.var));
+						SET_STACK_TYPE(stack, EX_VAR_TO_NUM(opline->op2.var), IS_UNKNOWN, 1);
+					}
+					break;
+			}
+
 			if (opline->result_type == IS_VAR || opline->result_type == IS_TMP_VAR) {
 				old_res_info = STACK_INFO(stack, EX_VAR_TO_NUM(opline->result.var));
 				SET_STACK_TYPE(stack, EX_VAR_TO_NUM(opline->result.var), IS_UNKNOWN, 1);
@@ -3665,7 +3671,7 @@ static int zend_jit_trace_handler(dasm_State **Dst, const zend_op_array *op_arra
 			switch (opline->opcode) {
 				case ZEND_FE_FETCH_R:
 				case ZEND_FE_FETCH_RW:
-					if (opline->op2_type == IS_CV) {
+					if (opline->op2_type != IS_UNUSED) {
 						SET_STACK_INFO(stack, EX_VAR_TO_NUM(opline->op2.var), old_info);
 					}
 					break;