[Bug lto/88220] New: lto1: fatal error: Cgraph edge statement index out of range

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88220

            Bug ID: 88220
           Summary: lto1: fatal error: Cgraph edge statement index out of
                    range
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: marxin at gcc dot gnu.org
  Target Milestone: ---

It's very old issue, isolated from libfakechroot package:

$ cat open64.i
void a() __asm__("open64");

void b();
void c();

void a() {
  b();
  c();
}
extern __inline __attribute__((__gnu_inline__))
void open64() {}

struct {
  void (*d) (void);
} e = {open64};

$ gcc -flto open64.i -shared -fPIC -O
In function ‘a’:
lto1: fatal error: Cgraph edge statement index out of range
compilation terminated.
lto-wrapper: fatal error: gcc returned 1 exit status
compilation terminated.
/usr/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status

And one very similar test-case:

$ cat open64-2.i 
void a() __asm__("open64");

void b();
void c();

void a() {
  b();
  c();
}
extern __inline __attribute__((__gnu_inline__)) int open64() {}
struct {
  int (*d) (void);
} e = {open64};

$ gcc -flto open64-2.i -shared -fPIC -O
lto1: internal compiler error: in wide_int_to_tree_1, at tree.c:1561
0x6bed2b wide_int_to_tree_1
        /home/marxin/Programming/gcc/gcc/tree.c:1561
0xabebaf lto_input_tree_1(lto_input_block*, data_in*, LTO_tags, unsigned int)
        /home/marxin/Programming/gcc/gcc/lto-streamer-in.c:1517
0xabebaf lto_input_tree_1(lto_input_block*, data_in*, LTO_tags, unsigned int)
        /home/marxin/Programming/gcc/gcc/lto-streamer-in.c:1483
0xabed60 lto_input_scc(lto_input_block*, data_in*, unsigned int*, unsigned
int*)
        /home/marxin/Programming/gcc/gcc/lto-streamer-in.c:1438
0xabedcc lto_input_tree(lto_input_block*, data_in*)
        /home/marxin/Programming/gcc/gcc/lto-streamer-in.c:1541
0xac0e23 input_function
        /home/marxin/Programming/gcc/gcc/lto-streamer-in.c:1043
0xac0e23 lto_read_body_or_constructor
        /home/marxin/Programming/gcc/gcc/lto-streamer-in.c:1295
0x819854 cgraph_node::get_untransformed_body()
        /home/marxin/Programming/gcc/gcc/cgraph.c:3545
0x825939 cgraph_node::expand()
        /home/marxin/Programming/gcc/gcc/cgraphunit.c:2166
0x8269d3 expand_all_functions
        /home/marxin/Programming/gcc/gcc/cgraphunit.c:2334
0x8269d3 symbol_table::compile()
        /home/marxin/Programming/gcc/gcc/cgraphunit.c:2685
0x78e219 lto_main()
        /home/marxin/Programming/gcc/gcc/lto/lto.c:3389