[Bug target/46250] New: ICE: in extract_insn, at recog.c:2110 (unrecognizable insn) with -fPIC -mcmodel=large and __thread variable

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46250

           Summary: ICE: in extract_insn, at recog.c:2110 (unrecognizable
                    insn) with -fPIC -mcmodel=large and __thread variable
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: zso...@seznam.cz


----- testcase.c -----
__thread int i;

void foo (void)
{
  i = 0;
}
----------------------

Compiler output:
$ gcc -fPIC -mcmodel=large testcase.c
testcase.c: In function 'foo':
testcase.c:6:1: error: unrecognizable insn:
(call_insn/u 5 4 6 3 (parallel [
            (set (reg:DI 0 ax)
                (call:DI (mem:QI (symbol_ref:DI ("__tls_get_addr")) [0 S1 A8])
                    (const_int 0 [0])))
            (unspec:DI [
                    (symbol_ref:DI ("i") [flags 0x10] <var_decl 0x7f2bb3d6a000
i>)
                ] UNSPEC_TLS_GD)
        ]) testcase.c:5 -1
     (expr_list:REG_EH_REGION (const_int -2147483648 [0xffffffff80000000])
        (nil))
    (nil))
testcase.c:6:1: internal compiler error: in extract_insn, at recog.c:2110
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Compiler output (4.2.4):
$ gcc-4.2.4 -fPIC -mcmodel=large testcase.c
testcase.c:1: sorry, unimplemented: code model large not supported in PIC mode
testcase.c:1: error: code model 'large' not supported in the 64 bit mode

Tested revisions:
r166105 - crash
4.5.1, 4.4.5, 4.3.5 - crash
4.2.4 - unimplemented