On Sun, 31 Dec 1995, Michael Graff wrote:
> What kind of trouble?  I've compiled kernels with 2.7.2 and have had
> no problems I can attribute to 2.7.2.

I don't know if the bug actually causes any problems in the kernel, but 
it seems like it's possible... I've been running with 2.7.2-compiled 
kernels since the switch was made, and haven't had any problems either, 
so perhaps the bug doesn't get triggered. I've recompiled with 
-fno-strength-reduce just to be safe though :)

Here's a short little program (found on gnu.gcc.bug... I don't know who
the original author is) that demonstrates the bug. Try compiling it with
-O, -O2, and -O2 -fno-strength-reduce. 


int A[3];
unsigned int B = 3;
 
void printit(void)
{
    int i;
    for(i = 0; i < B; i++)
        printf("A[%d] = %d\n", i, A[i]);
}
 
int main()
{
    int i;
    for(i = 0; i < B; i++)
        A[i] = i-3;
    printit();
    return 0;
}
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