Hi Robin, > Wouldn't you rather want to adjust the test to not check for one register > number but 3 or 4 instead? I think the purpose of this testcase is to check whether the modifications to the stack frame are as expected, so it is necessary to specify exactly whether three or four registers are saved. But I think its need to add another testcase which use another option -mcmodel=medany for coverage. > There might be future changes in default behavior > that would invalidate the test as well. Because -mcmodel is explicitly specified in the testcase, future changes to the default value of -mcmodel will not cause the test case to fail. Best, Lehua