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Re: target/6569: sparc-sun-solaris2.7 C testsuite regression incompile/20011119-2.c

From: Mark Mitchell <mark at codesourcery dot com>
To: Franz Sirl <Franz dot Sirl-kernel at lauterbach dot com>, "Kaveh R. Ghazi" <ghazi at caip dot rutgers dot edu>
Cc: "davem at gcc dot gnu dot org" <davem at gcc dot gnu dot org>, "davem at redhat dot com" <davem at redhat dot com>, "gcc-bugs at gcc dot gnu dot org" <gcc-bugs at gcc dot gnu dot org>, "gcc-gnats at gcc dot gnu dot org" <gcc-gnats at gcc dot gnu dot org>, "gcc-prs at gcc dot gnu dot org" <gcc-prs at gcc dot gnu dot org>, "jakub at redhat dot com" <jakub at redhat dot com>, "nobody at gcc dot gnu dot org" <nobody at gcc dot gnu dot org>, "rth at redhat dot com" <rth at redhat dot com>
Date: Tue, 07 May 2002 07:40:55 -0700
Subject: Re: target/6569: sparc-sun-solaris2.7 C testsuite regression incompile/20011119-2.c
References: <20020506060304.25266.qmail@sources.redhat.com><200205062223.38398@enzo.bigblue.local><200205070035.06736@enzo.bigblue.local><20800000.1020724683@gandalf.codesourcery.com><5.1.1.2.2.20020507150312.0537e008@mail.lauterbach.com>



--On Tuesday, May 07, 2002 03:14:49 PM +0200 Franz Sirl 
<Franz.Sirl-kernel@lauterbach.com> wrote:

> At 14:45 07.05.2002, Kaveh R. Ghazi wrote:
>>  > From: Mark Mitchell <mark@codesourcery.com>
>>  >
>>  > >> Can you try the attached patch? It seems to work for me, but the
>>  > >> bootstrap hasn't completed yet. While I was at it, I improved the
>>  > >> placing of the warning messages. I'm still a bit confused, cause it
>>  > >> sometimes seems olddecl and newdecl appeared to be swapped
>>  > >> compared to their sourcefile ordering.
>>  > >
>>  > > FYI, bootstrap+regtest on x86-linux-gnu completed successfully.
>>  >
>>  > OK; once you have confirmation of the SPARC results go ahead and
>>  > check it in.
>>
>> Unfortunately, the patch did not solve the problem listed in the PR.
>> I still get the same 'as' errors from compile/20011119-2.c
>>
>> compile/20011119-2.c:3: warning: weak declaration of `foo' after first
>> use  results in unspecified behavior
>> /usr/ccs/bin/as: "/var/tmp//ccQOIg1d.s", line 51: error: invalid operand
>> --------------------------------------------------^^^^^
>
> Yeah, I managed to get access to a solaris-2.8 machine, even though I
> wasn't able to bootstrap with Solaris as/ld (see below), I was able to
> reproduce the failure. Re-checking on x86-linux-gnu revealed that it even
> doesn't fix the problem there, so I must have mixed something up
> yesterday. Frankly, I'm a bit at a loss here, cause I've tried several
> strategies yesterday and they either didn't fix the testcase or caused
> some of the weak tests to fail. Especially I tried to use the TREE_USED
> flag of the WEAK_DECLS TREE_LIST to mark when a weak already had been
> assembled, but it didn't work out :-(. I seem to misunderstand something
> about how the tree structures are handled.

I'll look into this problem.

Thanks,

--
Mark Mitchell                   mark@codesourcery.com
CodeSourcery, LLC               http://www.codesourcery.com

Follow-Ups:
- Re: target/6569: sparc-sun-solaris2.7 C testsuite regression in compile/20011119-2.c
  - From: Franz Sirl

References:
- Re: target/6569: sparc-sun-solaris2.7 C testsuite regression in compile/20011119-2.c
  - From: davem
- Re: target/6569: sparc-sun-solaris2.7 C testsuite regression in compile/20011119-2.c
  - From: Franz Sirl
- Re: target/6569: sparc-sun-solaris2.7 C testsuite regression in compile/20011119-2.c
  - From: Franz Sirl
- Re: target/6569: sparc-sun-solaris2.7 C testsuite regression incompile/20011119-2.c
  - From: Mark Mitchell
- Re: target/6569: sparc-sun-solaris2.7 C testsuite regression in compile/20011119-2.c
  - From: Franz Sirl

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