[Bug lto/70629] New: 176.gcc fails to build with -O0 -flto with undefined reference to is_reserved_word

[prathamesh3492 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70629

            Bug ID: 70629
           Summary: 176.gcc fails to build with -O0 -flto with undefined
                    reference to is_reserved_word
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: prathamesh3492 at gcc dot gnu.org
  Target Milestone: ---

Hi,
176.gcc from SPEC2000 fails to build with trunk using -O0 -flto
for arm-linux-gnueabihf with many undefined references to is_reserved_word().
Also observed with system gcc-5.2.1 for x86_64.
However works with -O2/-O3 -flto
I am not sure if this qualifies to be a valid bug report.
Is -flto meant to work even for -O0 ?

Thanks,
Prathamesh