[Bug rtl-optimization/87701] New: [9 Regression] ICE in elimination_costs_in_insn, at reload1.c:3640 since r265398

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87701

            Bug ID: 87701
           Summary: [9 Regression] ICE in elimination_costs_in_insn, at
                    reload1.c:3640 since r265398
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: segher at gcc dot gnu.org
  Target Milestone: ---

Following fails:

$ ./xgcc -B.
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/tree-ssa/pr57380.C -O3 -c
during RTL pass: ira
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/tree-ssa/pr57380.C: In
function ‘int f(my_array, my_array)’:
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/tree-ssa/pr57380.C:19:1:
internal compiler error: in elimination_costs_in_insn, at reload1.c:3640
   19 | }
      | ^
0x1324d4a elimination_costs_in_insn
        /home/marxin/Programming/gcc/gcc/reload1.c:3637
0x131f461 calculate_elim_costs_all_insns()
        /home/marxin/Programming/gcc/gcc/reload1.c:1609
0x1110da8 ira_costs()
        /home/marxin/Programming/gcc/gcc/ira-costs.c:2256
0x1105d4f ira_build()
        /home/marxin/Programming/gcc/gcc/ira-build.c:3432
0x10fa8e8 ira
        /home/marxin/Programming/gcc/gcc/ira.c:5299
0x10fb16a execute
        /home/marxin/Programming/gcc/gcc/ira.c:5610