[Bug rtl-optimization/60508] New: internal compiler error: in lra_set_insn_recog_data, at lra.c:1082

[eugeni.stepanov at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60508

            Bug ID: 60508
           Summary: internal compiler error: in lra_set_insn_recog_data,
                    at lra.c:1082
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: eugeni.stepanov at gmail dot com

Created attachment 32339
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32339&action=edit
source code

At r208400, GCC is failing with internal compiler error on the attached source
generated with csmith.

$ gcc -O -S z.c -w
z.c: In function ‘fn1’:
z.c:33:1: internal compiler error: in lra_set_insn_recog_data, at lra.c:1082
 }
 ^
0x8aa962 lra_set_insn_recog_data(rtx_def*)
        ../../gcc/lra.c:1080
0x8ab4cf lra_get_insn_recog_data
        ../../gcc/lra-int.h:464
0x8ab4cf lra_update_insn_regno_info
        ../../gcc/lra.c:1749
0x8ab4cf lra_update_insn_regno_info
        ../../gcc/lra.c:1740
0x8ab6b1 lra_push_insn_1
        ../../gcc/lra.c:1802
0x8ab6b1 lra_push_insn(rtx_def*)
        ../../gcc/lra.c:1810
0x8ab89c push_insns
        ../../gcc/lra.c:1853
0x8abc65 lra_process_new_insns(rtx_def*, rtx_def*, rtx_def*, char const*)
        ../../gcc/lra.c:1898
0x8b9df6 curr_insn_transform
        ../../gcc/lra-constraints.c:3689
0x8bbb84 lra_constraints(bool)
        ../../gcc/lra-constraints.c:4157
0x8ac4d3 lra(_IO_FILE*)
        ../../gcc/lra.c:2340
0x86af0e do_reload
        ../../gcc/ira.c:5457
0x86af0e rest_of_handle_reload
        ../../gcc/ira.c:5598
0x86af0e execute
        ../../gcc/ira.c:5627