https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70985
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ktkachov at gcc dot gnu.org
--- Comment #4 from ktkachov at gcc dot gnu.org ---
I'm also seeing an ICE on the testcase:
struct {
char f0;
unsigned f2 : 16;
} e;
struct U2 {
char f3;
};
int **a;
int b, c, h, i, j;
int *d, *g, *k;
volatile struct U2 f;
void fn1() {
for (; b;) {
f;
**a = *g = *d = *k != i == h;
if (j)
c = e.f2;
else
for (;;)
;
}
}
at -O3. Given that it contains bitfields too I'm guessing it's the same cause.
mycrash.c:15:6: error: invalid operand in unary operation
void fn1() {
^~~
# VUSE <.MEM_18(D)>
e_f2_lsm0.12_27 = (short unsigned int) MEM[(struct *)&e + 1B];
mycrash.c:15:6: error: invalid operands in binary operation
mycrash.c:15:6: error: incorrect sharing of tree nodes
MEM[(struct *)&e + 1B]
# VUSE <.MEM_22>
_14 = MEM[(struct *)&e + 1B] & 65535;
mycrash.c:15:6: internal compiler error: verify_gimple failed
0xb23a53 verify_gimple_in_cfg(function*, bool)
$SRC/gcc/tree-cfg.c:5166
0xa14349 execute_function_todo
$SRC/gcc/passes.c:1968
0xa14554 do_per_function
$SRC/gcc/passes.c:1652
0xa1469c execute_todo
$SRC/gcc/passes.c:2020
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
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