https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66569
Bug ID: 66569
Summary: [CHKP]
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: ienkovich at gcc dot gnu.org
Target Milestone: ---
>cat test.i
struct s1 {
int *p;
int i;
};
struct s2 {
struct s1 s;
int i;
};
int test (struct s2 s, ...) { }
>gcc -fcheck-pointer-bounds -mmpx test.i
test.i: In function 'test.chkp':
test.i:14:18: error: unable to find a register to spill
int test (struct s2 s, ...) { }
^
test.i:14:18: error: this is the insn:
(insn 20 19 42 4 (parallel [
(set (reg:BND64 92 [orig:88 __chkp_bounds_of_s ] [88])
(unspec:BND64 [
(mem:DI (unspec:DI [
(plus:DI (reg/f:DI 16 argp)
(const_int 16 [0x10]))
(reg:DI 89)
] UNSPEC_BNDLDX_ADDR) [0 S8 A8])
] UNSPEC_BNDLDX))
(use (mem:BLK (plus:DI (reg/f:DI 16 argp)
(const_int 16 [0x10])) [0 A8]))
]) test.i:14 1062 {*bnd64_ldx}
(expr_list:REG_DEAD (reg:DI 89)
(nil)))
test.i:14:18: internal compiler error: in assign_by_spills, at
lra-assigns.c:1418
0xd3badb _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/gnumnt/msticlxl7_users/ienkovic/issues/mpx/gcc/gcc/rtl-error.c:110
0xc0462b assign_by_spills
/gnumnt/msticlxl7_users/ienkovic/issues/mpx/gcc/gcc/lra-assigns.c:1418
0xc04f82 lra_assign()
/gnumnt/msticlxl7_users/ienkovic/issues/mpx/gcc/gcc/lra-assigns.c:1593
0xbfdf80 lra(_IO_FILE*)
/gnumnt/msticlxl7_users/ienkovic/issues/mpx/gcc/gcc/lra.c:2331
0xba9512 do_reload
/gnumnt/msticlxl7_users/ienkovic/issues/mpx/gcc/gcc/ira.c:5401
0xba98c0 execute
/gnumnt/msticlxl7_users/ienkovic/issues/mpx/gcc/gcc/ira.c:5572
Fails on GCC 6 and GCC 5.1
