[Bug middle-end/54477] New: Inlining summary generation should not change the current function

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54477

             Bug #: 54477
           Summary: Inlining summary generation should not change the
                    current function
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: jamb...@gcc.gnu.org


Currently (rev. 190872), we sometimes change the function body when
generating inlining summaries, specifically at some point in
loop_optimizer_init, which is called to get BB loop depths and loop
bounds predicates.

This happens for example when compiling function MAIN__ of
testsuite/gfortran.dg/bound_7.f90.  

Summary generations of IPA passes should not modify function bodies,
pass manager should do all such body changing analyses instead.
More information in
http://gcc.gnu.org/ml/gcc-patches/2012-09/msg00148.html and other
messages in that thread.