[Bug lto/47799] New: LTO debug info for early inlined functions missing

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47799

           Summary: LTO debug info for early inlined functions missing
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Keywords: lto
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: rguenth@gcc.gnu.org


FAIL: gcc.dg/guality/pr43329-1.c  -O2 -flto  line 12 argx == 25

is because we inline foo during early inlining and the BLOCKs of the
inline instance are not emitted.  With -fno-early-inlining it succeeds.
That is, the effect of

  /* Output the inlining info for this abstract function, since it has been
     inlined.  If we don't do this now, we can lose the information about the
     variables in the function when the blocks get blown away as soon as we
     remove the cgraph node.  */
  (*debug_hooks->outlining_inline_function) (cg_edge->callee->decl);

isn't reflected in the LTO IL and thus gets lost.

The information should still be there in the inlined BLOCKs abstract
origins though, no?