llvm dev - May 2007 - [LLVMdev] which g++ to compile LLVM CVS on Linux/AMD64?

Hello All,

What version of g++ is usable to compile the latest LLVM CVS snapshot on a
Linux/x86-64 (AMD64) Debian/ Sid or Etch plateform?

What compiler do LLVM dzevelopers use to compile LLVM on Linux/X86-64
systems? IKt seems that most versions of g++ fail to compile LLVM and that
some others compile it wrongly (producing buggy code)?

Why can't g++-4.1 be used?

FWIW, the latest gcc snapshot from yesterday gcc version 4.3.0 20070501
(experimental) fail to compile latest LLVM (with compile errors!).

Is LLVM bootstraped thru g++-llvm?

Regards

-- 
Basile STARYNKEVITCH         http://starynkevitch.net/Basile/ 
email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359 
8, rue de la Faïencerie, 92340 Bourg La Reine, France
*** opinions {are only mines, sont seulement les miennes} ***

On 5/3/07, Basile STARYNKEVITCH <basile at starynkevitch.net>
wrote:
>
> Hello All,
>
> What version of g++ is usable to compile the latest LLVM CVS snapshot on a
> Linux/x86-64 (AMD64) Debian/ Sid or Etch plateform?
I am using gcc version 4.1.2 on debian testing without problem.

Andrew

On Thu, 3 May 2007, Basile STARYNKEVITCH wrote:
>
> What version of g++ is usable to compile the latest LLVM CVS snapshot on a
> Linux/x86-64 (AMD64) Debian/ Sid or Etch plateform?
Please look here:
http://llvm.org/docs/GettingStarted.html#brokengcc

I'd suggest late versions of GCC 4.0.x.  The 4.1 series has had numerous 
problems compiling LLVM on x86-64, though some people have had success 
with some vendor versions.
> FWIW, the latest gcc snapshot from yesterday gcc version 4.3.0 20070501
> (experimental) fail to compile latest LLVM (with compile errors!).
Please file an llvm bug report with these errors.  It may be that we are 
doing something illegal in C++  that is only now getting caught.  If the 
source is valid and G++ is incorrectly complaining, please file a bug 
against GCC.
> Is LLVM bootstraped thru g++-llvm?
Yes, it can be, and it works.

-Chris

-- 
http://nondot.org/sabre/
http://llvm.org/

Le Thu, May 03, 2007 at 09:36:22AM -0700, Chris Lattner
écrivait/wrote:
> On Thu, 3 May 2007, Basile STARYNKEVITCH wrote:
> >
> 
> > FWIW, the latest gcc snapshot from yesterday gcc version 4.3.0
20070501
> > (experimental) fail to compile latest LLVM (with compile errors!).
> 
> Please file an llvm bug report with these errors.  It may be that we are 
> doing something illegal in C++  that is only now getting caught.  If the 
> source is valid and G++ is incorrectly complaining, please file a bug 
> against GCC.
> 
I'm sorry to reply on the list (but I failed even waiting 15 minutes to get
a mailed password from the LLVM bugzilla system).


With the latest CVS and with ./configure CXX=g++-snap where 
g++-snap is yesterday's GCC trunk :
g++-snap -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --disable-multilib --program-suffix=-snap
--enable-languages=c,c++
Thread model: posix
gcc version 4.3.0 20070501 (experimental)

I am getting the following errors

llvm[1]: Building Debug Archive Library libLLVMSystem.a
make[1]: Leaving directory `/usr/src/Lang/llvm/lib/System'
make[1]: Entering directory `/usr/src/Lang/llvm/lib/Support'
llvm[1]: Compiling APInt.cpp for Debug build
In file included from /usr/src/Lang/llvm/include/llvm/Type.h:14,
                 from /usr/src/Lang/llvm/include/llvm/DerivedTypes.h:21,
                 from APInt.cpp:17:
/usr/src/Lang/llvm/include/llvm/AbstractTypeUser.h:19:51: error: missing
terminating ' character
In file included from APInt.cpp:16:
/usr/src/Lang/llvm/include/llvm/ADT/APInt.h:1041: warning: type qualifiers
ignored on function return type
/usr/src/Lang/llvm/include/llvm/ADT/APInt.h:1047: warning: type qualifiers
ignored on function return type
In file included from APInt.cpp:17:
/usr/src/Lang/llvm/include/llvm/DerivedTypes.h: In member function 'virtual
void llvm::OpaqueType::refineAbstractType(const llvm::DerivedType*, const
llvm::Type*)':
/usr/src/Lang/llvm/include/llvm/DerivedTypes.h:412: error: 'abort' was
not declared in this scope
/usr/src/Lang/llvm/include/llvm/DerivedTypes.h: In member function 'virtual
void llvm::OpaqueType::typeBecameConcrete(const llvm::DerivedType*)':
/usr/src/Lang/llvm/include/llvm/DerivedTypes.h:415: error: 'abort' was
not declared in this scope


Hope that this could help someone. I really don't know if it is a bug in GCC
(tuesday's SVN snapshot) or in LLVM (today's CVS snapshot)

Regards.
-- 
Basile STARYNKEVITCH         http://starynkevitch.net/Basile/ 
email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359 
8, rue de la Faïencerie, 92340 Bourg La Reine, France
*** opinions {are only mines, sont seulement les miennes} ***