[Bug target/69031] New: ICE: in hash_rtx_cb, at cse.c:2533 with -fPIC -fselective-scheduling and __builtin_setjmp()

["zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69031

            Bug ID: 69031
           Summary: ICE: in hash_rtx_cb, at cse.c:2533 with -fPIC
                    -fselective-scheduling and __builtin_setjmp()
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: powerpc-unknown-linux-gnu

Created attachment 37116
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37116&action=edit
reduced testcase

Compiler output:
$ powerpc-unknown-linux-gnu-gcc -O2 -fPIC -fselective-scheduling testcase.c 
testcase.c: In function 'foo':
testcase.c:8:1: internal compiler error: in hash_rtx_cb, at cse.c:2527
 }
 ^

0x115ad3b hash_rtx_cb(rtx_def const*, machine_mode, int*, int*, bool, int
(*)(rtx_def const*, machine_mode, rtx_def**, machine_mode*))
        /repo/gcc-trunk/gcc/cse.c:2527
0x115acd4 hash_rtx_cb(rtx_def const*, machine_mode, int*, int*, bool, int
(*)(rtx_def const*, machine_mode, rtx_def**, machine_mode*))
        /repo/gcc-trunk/gcc/cse.c:2511
0xada92b vinsn_init
        /repo/gcc-trunk/gcc/sel-sched-ir.c:1206
0xada92b vinsn_create
        /repo/gcc-trunk/gcc/sel-sched-ir.c:1237
0xadadf3 init_global_and_expr_for_insn
        /repo/gcc-trunk/gcc/sel-sched-ir.c:3014
0xad898a sched_scan
        /repo/gcc-trunk/gcc/sel-sched-ir.c:2801
0xadd601 sel_init_global_and_expr(vec<basic_block_def*, va_heap, vl_ptr>)
        /repo/gcc-trunk/gcc/sel-sched-ir.c:3033
0xafbf11 sel_region_init
        /repo/gcc-trunk/gcc/sel-sched.c:6889
0xafbf11 sel_sched_region(int)
        /repo/gcc-trunk/gcc/sel-sched.c:7613
0xafd9a9 run_selective_scheduling()
        /repo/gcc-trunk/gcc/sel-sched.c:7699
0xad161d rest_of_handle_sched
        /repo/gcc-trunk/gcc/sched-rgn.c:3715
0xad161d execute
        /repo/gcc-trunk/gcc/sched-rgn.c:3825
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

Only this target seems to have this problem.

Tested revisions:
r231903 - FAIL
5-branch r231870 - FAIL
4_9-branch r231865 - FAIL
4_8-branch r224828 - FAIL