https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67344
Bug ID: 67344
Summary: PowerPC unrecognizable insn
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: anton at samba dot org
Target Milestone: ---
The following testcase:
# cat testcase.c
int a, b, c;
void fn2(void);
int fn1(char p1)
{
short d;
for (;;)
for (; c <= 3;) {
fn2();
d = p1 / 2;
b = d & 11 && a;
}
}
hits an ICE:
# gcc -O1 -c testcase.i
testcase2.i: In function ‘fn1’:
testcase2.i:13:1: error: unrecognizable insn:
}
^
(insn 74 4 75 2 (set (reg:DI 9 9)
(and:DI (lshiftrt:DI (reg:DI 3 3 [ p1 ])
(const_int 1 [0x1]))
(const_int 11 [0xb]))) testcase2.i:11 -1
(nil))
testcase2.i:13:1: internal compiler error: in extract_insn, at recog.c:2297
0x107923e3 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../gcc/gcc/rtl-error.c:109
0x1079245f _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../gcc/gcc/rtl-error.c:117
0x10755a87 extract_insn(rtx_insn*)
../../gcc/gcc/recog.c:2297
0x10755b4f extract_insn_cached(rtx_insn*)
../../gcc/gcc/recog.c:2188
0x1049f37b cleanup_subreg_operands(rtx_insn*)
../../gcc/gcc/final.c:3112
0x10751dd7 split_insn
../../gcc/gcc/recog.c:2910
0x10758d77 split_all_insns()
../../gcc/gcc/recog.c:2964
0x10758eab rest_of_handle_split_after_reload
../../gcc/gcc/recog.c:3904
0x10758eab execute
../../gcc/gcc/recog.c:3933
