https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71816
--- Comment #16 from ktkachov at gcc dot gnu.org ---
The following is reduced from the genattrtab.c ICE when bootstrapping on
arm-none-linux-gnueabihf:
typedef struct rtx_def *rtx;
union rtunion {
int rt_int;
rtx rt_rtx;
};
struct rtx_def {
struct {
rtunion fld[1];
long long hwint;
} u;
};
rtx a, b, c;
static bool fn1(rtx, rtx p2) { return p2->u.fld[0].rt_int; }
void fn2() {
if (c && c->u.fld[0].rt_rtx)
;
else if (fn1(b, c))
c = a;
}
ICEs for me at -O2 -march=armv7-a -mfloat-abi=hard -mfpu=neon-vfpv4, for
example
