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[Bug middle-end/34621] [4.3 Regression] gcc.c-torture/execute/va-arg-25.c:32: internal compiler error: in expand_call, at calls.c:2785
- From: "dominiq at lps dot ens dot fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 14 Feb 2008 10:09:01 -0000
- Subject: [Bug middle-end/34621] [4.3 Regression] gcc.c-torture/execute/va-arg-25.c:32: internal compiler error: in expand_call, at calls.c:2785
- References: <bug-34621-12313@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #30 from dominiq at lps dot ens dot fr 2008-02-14 10:09 -------
> Hm... I assume you did recompile libgfortran and libstdc++...
In comment #25 I have said:
> I bootstraped without the defines
Anyway, even if the change had solved the problem, I would not have considered
it as a long term fix.
I do not know the technicalities around the *STACK_BOUNDARY stuff to
participate to the discussion, but I think this PR only expose an underlying
bug that should be analyzed.
>From what I understand, if *STACK_BOUNDARY is larger than the size of what is
pushed in the stack, some padding is performed. So the basic question is why
this done for -O2 and not for -Os.
I am currently regtesting libstdc++-v3 rev. 132313, with the defines to confirm
that the failures has not been induced by something else.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34621