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References: <bug-40873-13404@http.gcc.gnu.org/bugzilla/>
Subject: [Bug fortran/40873] -fwhole-file -fwhole-program: Wrong decls cause too much to be optimized away
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------- Comment #1 from burnus at gcc dot gnu dot org  2009-07-27 14:47 -------
(Note: -fwhole-program implies -fwhole-file; the -O<n> option is required.)

Test case. Run with "-O1 -fwhole-program".
Fails with: test.f90:(.text+0x1b): undefined reference to `three_'

      program prog
        call one()
        call two()
      end program prog
      subroutine one()
        call three()
      end subroutine one
      subroutine two()
        call three()
      end subroutine two
      subroutine three()
      end subroutine three


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
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                 CC|                            |pault at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40873