https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87885
Bug ID: 87885
Summary: ICE in release_ssa_name_fn with -fprofile-report
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
Target Milestone: ---
Starting from r247882 I see:
$ ./xgcc -B. /tmp/ice.ii -c -fprofile-report -O -c -Wall
during GIMPLE pass: fre
/tmp/ice.ii: In function ‘void ai()’:
/tmp/ice.ii:43:6: internal compiler error: Segmentation fault
43 | void ai() {
| ^~
0x1466f7e crash_signal
/home/marxin/Programming/gcc/gcc/toplev.c:325
0x7ffff6bc310f ???
/usr/src/debug/glibc-2.27-6.1.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x153c78f estimate_move_cost(tree_node*, bool)
/home/marxin/Programming/gcc/gcc/tree-inline.c:3780
0x153d2b3 estimate_num_insns(gimple*, eni_weights*)
/home/marxin/Programming/gcc/gcc/tree-inline.c:4087
0x14dc9aa gimple_account_profile_record
/home/marxin/Programming/gcc/gcc/tree-cfg.c:8811
0xd63ddd account_profile_record(profile_record*, int)
/home/marxin/Programming/gcc/gcc/cfghooks.c:1475
0x12eccac check_profile_consistency
/home/marxin/Programming/gcc/gcc/passes.c:1757
$ cat ice.ii
template <typename> class a {};
template <typename, typename> class b;
template <typename> struct c;
template <typename g> struct c<a<g>> {
using d = a<g>;
using e = g;
using f = long;
static e aa(d, f);
};
struct h : c<a<int>> {};
struct i {
struct j {
int k;
j(j &&) { k = int(); }
};
struct l : a<int>, j {};
i(i &&) = default;
~i() {
long ab = m.k;
m.k ? h::aa(m, ab) : int();
}
l m;
};
class n : i {
public:
n(long);
};
class q {
public:
template <typename o, typename p> q(o, o, p);
n ae() {
{
n r(2);
return r;
}
}
};
template <typename s, typename t, typename af> void operator<<(b<t, af>, s p2)
{
p2.ae();
}
template <typename, typename> class b {};
double ah;
void ai() {
q aj(ah, ah, ai);
b<int, int> ak;
ak << aj;
}
The problem is that we call estimate_run_insns for a gimple statement that has
a SSA NAME in free list
