http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57343
Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Component|rtl-optimization |tree-optimization
--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
Reduced a bit:
int printf (const char *, ...);
int c = 0;
int main ()
{
int i;
int f = 1;
for (i = 0; i < 5; i++)
{
--c;
unsigned char h = c * 100;
if (h == 0)
{
f = 0;
break;
}
}
printf ("%d\n", f);
return 0;
}
-O1 is enough. Disabling cunroll seems to help.
