[Bug ipa/87843] New: [9 Regression] SPEC 2017 miscompilation of 502.gcc_r with -Ofast -march=native -g -flto=8 -fprofile-generate

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87843

            Bug ID: 87843
           Summary: [9 Regression] SPEC 2017 miscompilation of 502.gcc_r
                    with -Ofast -march=native -g -flto=8
                    -fprofile-generate
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: marxin at gcc dot gnu.org
            Blocks: 26163
  Target Milestone: ---

Started with the same revision as PR87830, I see segfault of the benchmark.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26163
[Bug 26163] [meta-bug] missed optimization in SPEC (2k17, 2k and 2k6 and 95)