[Bug rtl-optimization/56957] New: [4.9 regression] ICE in add_insn_after, at emit-rtl.c:3783

["schwab@linux-m68k.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56957

             Bug #: 56957
           Summary: [4.9 regression] ICE in add_insn_after, at
                    emit-rtl.c:3783
    Classification: Unclassified
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: schwab@linux-m68k.org
                CC: steven@gcc.gnu.org
            Target: ia64-*-*


spawn /usr/local/gcc/gcc-20130414/Build/gcc/xgcc
-B/usr/local/gcc/gcc-20130414/Build/gcc/ -fno-diagnostics-show-caret -O3
-fomit-frame-pointer -funroll-loops -w -c -o 20070603-2.o
/usr/local/gcc/gcc-20130414/gcc/testsuite/gcc.c-torture/compile/20070603-2.c
/usr/local/gcc/gcc-20130414/gcc/testsuite/gcc.c-torture/compile/20070603-2.c:
In function 'f':
/usr/local/gcc/gcc-20130414/gcc/testsuite/gcc.c-torture/compile/20070603-2.c:9:1:
internal compiler error: in add_insn_after, at emit-rtl.c:3783
0x400000000046b74f add_insn_after(rtx_def*, rtx_def*, basic_block_def*)
        ../../gcc/emit-rtl.c:3783
0x40000000008c536f sel_gen_insn_from_expr_after(_expr*, vinsn_def*, int,
rtx_def*)
        ../../gcc/sel-sched-ir.c:1401
0x40000000008d3b6f emit_insn_from_expr_after
        ../../gcc/sel-sched.c:4520
0x40000000008e5a3f schedule_expr_on_boundary
        ../../gcc/sel-sched.c:5523
0x40000000008e9d9f fill_insns
        ../../gcc/sel-sched.c:5646
0x40000000008e9d9f schedule_on_fences
        ../../gcc/sel-sched.c:7411
0x40000000008e9d9f sel_sched_region_2
        ../../gcc/sel-sched.c:7545
0x40000000008f19ef sel_sched_region_1
        ../../gcc/sel-sched.c:7658
0x40000000008f19ef sel_sched_region(int)
        ../../gcc/sel-sched.c:7685
0x40000000008f34af run_selective_scheduling()
        ../../gcc/sel-sched.c:7761
0x4000000000dadaaf ia64_reorg
        ../../gcc/config/ia64/ia64.c:9728
0x4000000000878f0f rest_of_handle_machine_reorg
        ../../gcc/reorg.c:3904

Caused by r197942.