[Bug tree-optimization/97199] New: ICE in process_bb at gcc/tree-ssa-sccvn.c:7250

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97199

            Bug ID: 97199
           Summary: ICE in process_bb at gcc/tree-ssa-sccvn.c:7250
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
  Target Milestone: ---

It's as old as the following param:
--param=unroll-jam-min-percent=0

$ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/torture/pr92704.c
-fno-tree-ch -fno-tree-dce -Ofast --param=unroll-jam-min-percent=0
during GIMPLE pass: ifcvt
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/torture/pr92704.c: In
function ‘oj.simdclone.0’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/torture/pr92704.c:6:1:
internal compiler error: Segmentation fault
    6 | oj (int rd, int q7)
      | ^~
0x12edcb8 crash_signal
        /home/marxin/Programming/gcc/gcc/toplev.c:329
0x7ffff788652f ???
       
/usr/src/debug/glibc-2.31-6.3.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x15cee16 process_bb
        /home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:7250
0x15d0b62 do_rpo_vn
        /home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:7681
0x15d11a1 do_rpo_vn(function*, edge_def*, bitmap_head*)
        /home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:7778
0x13aeecf tree_if_conversion(loop*, vec<gimple*, va_heap, vl_ptr>*)
        /home/marxin/Programming/gcc/gcc/tree-if-conv.c:3108
0x13af0bb execute
        /home/marxin/Programming/gcc/gcc/tree-if-conv.c:3188
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