https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70740
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
Component|c |tree-optimization
Summary|ICE when compiling the |[7 Regression] ICE when
|Linux kernel |compiling the Linux kernel
|(net/wireless/util.o) |(net/wireless/util.o)
--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
markus@x4 tmp % cat util.i
struct {
char h_dest[6]
} d;
struct {
int addr1[0];
int addr2[0];
int addr3[0];
int addr4[]
} a, c;
b;
*ieee80211_get_SA() {
if (b)
return a.addr4;
return a.addr2;
}
__ieee80211_data_to_8023() {
int *e, *f;
if (ieee80211_has_tods())
e = c.addr3;
else
e = c.addr1;
memcpy(d.h_dest, e, 6);
f = ieee80211_get_SA();
memcpy(0, f, 1);
}
markus@x4 tmp % gcc -w -O2 -c util.i
util.i: In function ‘__ieee80211_data_to_8023’:
util.i:16:1: internal compiler error: Segmentation fault
__ieee80211_data_to_8023() {
^~~~~~~~~~~~~~~~~~~~~~~~
0xb21c0f crash_signal
../../gcc/gcc/toplev.c:335
0x7f7c24210eaf ???
/home/markus/glibc/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7929b6 dominated_by_p(cdi_direction, basic_block_def const*, basic_block_def
const*)
../../gcc/gcc/dominance.c:973
0xca5964 propagate_with_phi
../../gcc/gcc/tree-ssa-phiprop.c:335
0xca5964 execute
../../gcc/gcc/tree-ssa-phiprop.c:447
