https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81249
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|bootstrap |tree-optimization
Summary|[8 Regression] LTO/PGO |[8 Regression] ICE: error:
|bootstrap: ICE: in |incompatible types in PHI
|compare_values_warnv, at |argument 0
|tree-vrp.c:1029 |
--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
trippels@gcc67 gcc % cat genattrtab.ii
typedef struct rtx_def *rtx;
union rtunion {
rtx rt_rtx;
};
struct rtx_def {
struct {
rtunion fld[0];
} u;
rtx elem[];
} a;
int b, c, d;
rtx e;
int main() {
for (;;) {
d = 0;
for (; d < b; d++)
if (a.elem[d])
e = a.elem[d]->u.fld[1].rt_rtx;
if (e)
c = 0;
}
}
trippels@gcc67 gcc % g++ -O3 -march=znver1 genattrtab.ii
genattrtab.ii: In function ‘int main()’:
genattrtab.ii:13:5: error: incompatible types in PHI argument 0
int main() {
^~~~
struct rtx_def *
long unsigned int
e_lsm.8_49 = PHI <_79(9), e_lsm.8_1(5)>
genattrtab.ii:13:5: error: incompatible types in PHI argument 1
struct rtx_def *
long unsigned int
e_lsm.8_53 = PHI <e_lsm.8_40(13), _79(9)>
during GIMPLE pass: vect
genattrtab.ii:13:5: internal compiler error: verify_gimple failed
0xe383a6 verify_gimple_in_cfg(function*, bool)
../../gcc/gcc/tree-cfg.c:5304
0xd124a3 execute_function_todo
../../gcc/gcc/passes.c:1989
0xd12de9 execute_todo
../../gcc/gcc/passes.c:2043
