Re: your mail

[Stephen Dennis]

I'll work a minimal program and on whether the irrelevant() call -must-
be at the following specific line and only at the following specific
line, but I did isolate it a little further:

static void irrelevant(void)
{
    static volatile int x;
    x++;
}

static double AddWithError(double& err, double a, double b)
{
    double sum = a+b;
    err = b-(sum-a);
    irrelevant();  // <--- enough of a fix.
    return sum;
}

gcc version 2.95.2

And, before you ask me to try gcc 3.0.x, yes; I could boot-strap a later
compiler. I'm using ihost.com servers.com.

Compiler Options: gcc -O -g

Stephen Dennis