https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66890
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Really for this loop, I would have assume to be split into 3 different loops
like:
volatile int count;
int main()
{
int i;
for (i = 0; i < 999; i++) {
if (i == 999)
count *= 2;
count++;
}
for (; i < 999+1; i++) {
if (i == 999)
count *= 2;
count++;
}
for (; i < 100000; i++) {
if (i == 999)
count *= 2;
count++;
}
}
And then it would not have an extra branch inside the loop itself either.
