[Bug tree-optimization/87217] New: [9 regression] ICE in in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:709 when compiling SPEC2000 starting with r264069

[seurer at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87217

            Bug ID: 87217
           Summary: [9 regression] ICE in in check_loop_closed_ssa_def, at
                    tree-ssa-loop-manip.c:709 when compiling SPEC2000
                    starting with r264069
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at linux dot vnet.ibm.com
  Target Milestone: ---

0x10bd080b check_loop_closed_ssa_def
        /home/seurer/gcc/gcc-test/gcc/tree-ssa-loop-manip.c:709
0x10bd0b67 check_loop_closed_ssa_bb
        /home/seurer/gcc/gcc-test/gcc/tree-ssa-loop-manip.c:735
0x10bd450f verify_loop_closed_ssa(bool, loop*)
        /home/seurer/gcc/gcc-test/gcc/tree-ssa-loop-manip.c:760
0x10bb31b3 tree_unroll_loops_completely
        /home/seurer/gcc/gcc-test/gcc/tree-ssa-loop-ivcanon.c:1493
0x10bb3313 execute
        /home/seurer/gcc/gcc-test/gcc/tree-ssa-loop-ivcanon.c:1599
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
specmake: *** [clor6.o] Error 1
specmake: *** Waiting for unfinished jobs....




seurer@granola:~/gcc/cpu2000/benchspec/CFP2000/200.sixtrack/run/00000016$
/home/seurer/gcc/install/gcc-test/bin/gfortran -c -o clor6.o            -m64
-O3 -mcpu=power7 -ffast-math -funroll-loops -fpeel-loops -fvect-cost-model
-mpopcntd -mrecip=rsqrt   clor6.f
during GIMPLE pass: cunroll
clor6.f:3:0:

3 |       subroutine clor6
  | 
internal compiler error: in check_loop_closed_ssa_def, at
tree-ssa-loop-manip.c:709
0x10bd080b check_loop_closed_ssa_def
        /home/seurer/gcc/gcc-test/gcc/tree-ssa-loop-manip.c:709
0x10bd0b67 check_loop_closed_ssa_bb
        /home/seurer/gcc/gcc-test/gcc/tree-ssa-loop-manip.c:735
0x10bd450f verify_loop_closed_ssa(bool, loop*)
        /home/seurer/gcc/gcc-test/gcc/tree-ssa-loop-manip.c:760
0x10bb31b3 tree_unroll_loops_completely
        /home/seurer/gcc/gcc-test/gcc/tree-ssa-loop-ivcanon.c:1493
0x10bb3313 execute
        /home/seurer/gcc/gcc-test/gcc/tree-ssa-loop-ivcanon.c:1599
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.