order of local variables in stack frame

[Markus Franke]

Dear GCC Developers,

I am working on a target backend for the DLX architecture and I have a
question concerning the layout of the stack frame.
Here is a simple test C-program:

---snip---
int main(void)
{
        int a = 1;
        int b = 2;
        int c = a + b;
        return c;
}
---snap---

The initialisation of the variables a and b produce the following output:

---snip---
        movl    $1, -24(%ebp)
        movl    $2, -20(%ebp)
---snap---

Although I have declared "STACK_GROWS_DOWNWARD" the variables a and b
are lying upwards in memory (-24 < -20). Shouldn't it be the other way
around because the stack should grow downwards towards smaller
addresses. I think it should be like this:

---snip---
        movl    $1, -20(%ebp)
        movl    $2, -24(%ebp)
---snap---

Please let me know whether I missunderstood something completely. If
this behaviour is correct what can I do to change it to the other way
around. Which macro variable do I have to change?


Thanks in advance,
Markus Franke