https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69810
Bug ID: 69810
Summary: PowerPC64: unrecognizable insn
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: anton at samba dot org
Target Milestone: ---
Another csmith fail on trunk:
int a, b;
void fn1(void)
{
signed char c;
long d;
int e;
repeat:
{
int f = fn1;
e = f == 0 ? : 0 / f;
d = e ? : a;
c = -d;
}
unsigned short g = c;
b = g == 0 ? : 0 / g;
if (b)
goto repeat;
}
# gcc -O1 testcase.c
...
testcase.c:22:1: error: unrecognizable insn:
}
^
(insn 72 71 35 5 (set (reg:CC 75 7 [179])
(compare:CC (reg:HI 7 7)
(const_int 0 [0]))) crash1b.i:19 -1
(nil))
crash1b.i:22:1: internal compiler error: in extract_insn, at recog.c:2287
0x108128f3 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../gcc/gcc/rtl-error.c:108
0x10812957 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../gcc/gcc/rtl-error.c:116
0x107d67e7 extract_insn(rtx_insn*)
../../gcc/gcc/recog.c:2287
0x107d68af extract_insn_cached(rtx_insn*)
../../gcc/gcc/recog.c:2178
0x104d24b7 cleanup_subreg_operands(rtx_insn*)
../../gcc/gcc/final.c:3104
0x107d39b7 split_insn
../../gcc/gcc/recog.c:2901
0x107d9aeb split_all_insns()
../../gcc/gcc/recog.c:2955
0x107d9c2b rest_of_handle_split_after_reload
../../gcc/gcc/recog.c:3891
0x107d9c2b execute
../../gcc/gcc/recog.c:3920
