[Bug target/49853] New: [x32] PIC doesn't work with external symbol

["hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49853

           Summary: [x32] PIC doesn't work with external symbol
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com


[hjl@gnu-6 gcc]$ cat /tmp/bar.c
typedef unsigned int Elf32_Addr;
extern void _start (void);
int
dl_main ( Elf32_Addr *user_entry)
{
  if (*user_entry == (Elf32_Addr) _start)
    return 0;
  else
    return 1;
}
[hjl@gnu-6 gcc]$ ./xgcc -B./ -S -O2 -fPIC /tmp/bar.c   -mx32 -std=gnu99  -dp
/tmp/bar.c: In function ‘dl_main’:
/tmp/bar.c:10:1: error: unrecognizable insn:
(insn 6 5 7 3 (set (reg:SI 67)
        (symbol_ref:SI ("_start") [flags 0x41] <function_decl 0x7faad972ff00
_start>)) /tmp/bar.c:6 -1
     (nil))
/tmp/bar.c:10:1: internal compiler error: in extract_insn, at recog.c:2115
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
[hjl@gnu-6 gcc]$