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[Bug fortran/29648] Inlining only done for contained procedures
- From: "bdavis at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 Dec 2007 02:24:34 -0000
- Subject: [Bug fortran/29648] Inlining only done for contained procedures
- References: <bug-29648-10601@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from bdavis at gcc dot gnu dot org 2007-12-01 02:24 -------
in case someone does not know what a contained procedure is (i sure didn't
without getting out the Metcalf and Reid book), below is an example:
program fred
integer j
j = 0
call a(j)
print*,j
contains
subroutine a(i)
integer i
i = i +2
end subroutine a
end program fred
compile it with no optimization and look at the assembler code, then compile it
with -O2, the subroutine is inlined by gfortran.
not really relevant to this PR, but something I learned and verified, which
might be of use.
--bud
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29648