https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90567
--- Comment #4 from msmaldi ---
-O2 generate better results, but gcc 7 continue faster
gcc-7 with -O3
real0m3,143s
user0m3,119s
sys 0m0,008s
gcc-8 with -O2
real0m4,802s
user0m4,793s
sys 0m0,009s
gcc 7 assembly generated
Assignee: unassigned at gcc dot gnu.org
Reporter: msmaldi at hotmail dot com
Target Milestone: ---
consider code:
int fibo (int n)
{
if (n == 1 || n == 2)
return 1;
else
return fibo(n - 1) + fibo(n - 2);
}
int main()
{
printf ("%d\n"
