https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67346
Bug ID: 67346
Summary: PowerPC: could not split 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.i
struct {
long f1;
} c;
int a, d, e;
volatile int b;
void fn2()
{
a = 3;
for (; a <= 8; a++) {
unsigned long *f = &c.f1;
e = 5 + 1;
*f |= d &= e;
b ? : b;
}
}
void fn1()
{
c.f1 = -2;
fn2();
}
hits an ICE:
# gcc -O3 testcase.i
testcase.i: In function ‘fn1’:
testcase.i:22:1: error: could not split insn
}
^
(insn 24 23 28 (set (reg:DI 6 6 [168])
(ior:DI (reg:DI 6 6 [196])
(const_int -2 [0xfffffffffffffffe]))) testcase.i:13 243
{*iordi_mask}
(nil))
testcase.i:22:1: internal compiler error: in final_scan_insn, at final.c:2995
0x107923e3 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../gcc/gcc/rtl-error.c:109
0x104a3d6b final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*)
../../gcc/gcc/final.c:2995
0x104a4267 final(rtx_insn*, _IO_FILE*, int)
../../gcc/gcc/final.c:2058
0x104a46d7 rest_of_handle_final
../../gcc/gcc/final.c:4449
0x104a46d7 execute
../../gcc/gcc/final.c:4524
