https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70199
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-03-13
Ever confirmed|0 |1
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Here is a reduced testcase:
static volatile int v = 0;
static
void benchmark(long runs) {
void* labels[] = {
&&l0, &&l1, &&l2
};
for(unsigned int mask = 0x1F; mask > 0; mask >>= 1) {
unsigned lfsr = 0xACE1u;
long n = 10000000;
while(n > 0) {
l2: v;
l1: v;
goto *labels[lfsr & mask];
l0: n--;
}
}
}
int f(void) {
benchmark(10000000);
}
---- CUT -----
