[Bug tree-optimization/81462] New: [8 Regression] ICE in estimate_bb_frequencies at gcc/predict.c:3546

["marxin at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81462

            Bug ID: 81462
           Summary: [8 Regression] ICE in estimate_bb_frequencies at
                    gcc/predict.c:3546
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: hubicka at ucw dot cz
  Target Milestone: ---

$ ./xgcc -B. /home/marxin/Programming/gcc/gcc/testsuite/g++.dg/ipa/devirt-50.C
-O1 -fno-ipa-pure-const
during GIMPLE pass: profile_estimate
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/ipa/devirt-50.C: In function
‘int main()’:
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/ipa/devirt-50.C:17:5:
internal compiler error: in to_reg_br_prob_base, at profile-count.h:189
     }
     ^
0xcedbf0 profile_probability::to_reg_br_prob_base() const
        ../../gcc/profile-count.h:189
0xcebc05 estimate_bb_frequencies(bool)
        ../../gcc/predict.c:3546
0xce9712 tree_estimate_probability(bool)
        ../../gcc/predict.c:2815
0xcec3b3 execute
        ../../gcc/predict.c:3688