[LLVMdev] Problems building cfrontend 4 source on SUSE 10.1

Reid Spencer rspencer at reidspencer.com
Mon Nov 6 13:18:01 PST 2006 

Hi Robert,

On Mon, 2006-11-06 at 12:45 -0800, Robert Mykland wrote:
> Reid,
> 
> Here's the backtrace you asked for:
> 
> (gdb) bt
> #0  0x0862d65c in llvm::LiveVariables::runOnMachineFunction ()

Hmm, this is a little strange. Your LLVM build is non-debug (there's no
line numbers or arguments in any of the llvm related calls). However,
your llvm-gcc build seems to have symbols. So, I have some questions:

1. Did you configure llvm-gcc with the --enable-checking option?
2. What did you provide for the --with-llvm= option? llvm-gcc is going
to look in 
   that directory for Debug/lib for libraries. So, you should have debug
llvm but
   you don't.  Can you explain why?
3. Can you build an llvm Debug version and link llvm-gcc against it?
4. Are you sure you're linking against the right thing? The function
that failed 
  is a one-liner:
     return runOnMachineFunction(MachineFunction::get(&F));
  I don't see any way for that to fail easily (maybe with bad vtable).
It could 
  fail in MachineFunction::get but that doesn't show up on your stack
trace.

Reid.

> #1  0x083d0339 in llvm::MachineFunctionPass::runOnFunction ()
> #2  0x086fb4d7 in llvm::FunctionPassManagerT::runPass ()
> #3  0x087033f8 in llvm::PassManagerT<llvm::FTraits>::runPasses ()
> #4  0x0870412f in llvm::PassManagerT<llvm::FTraits>::runOnUnit ()
> #5  0x086fb59b in llvm::FunctionPassManagerT::runOnFunction ()
> #6  0x086f6fb9 in llvm::FunctionPass::runOnModule ()
> #7  0x086fb547 in llvm::ModulePassManager::runPass ()
> #8  0x08702329 in llvm::PassManagerT<llvm::MTraits>::runPasses ()
> #9  0x0870300f in llvm::PassManagerT<llvm::MTraits>::runOnUnit ()
> #10 0x086f65eb in llvm::ModulePassManager::runOnModule ()
> #11 0x086f6659 in llvm::PassManager::run ()
> #12 0x08256a93 in llvm_asm_file_end ()
>     at ../../llvm-gcc4-1.8-source/gcc/llvm-backend.cpp:277
> #13 0x0823bc40 in toplev_main (argc=47, argv=0xbff80804)
>     at ../../llvm-gcc4-1.8-source/gcc/toplev.c:1171
> #14 0x08096ad2 in main (argc=-1209859528, argv=0xb7e30240)
>     at ../../llvm-gcc4-1.8-source/gcc/llvm-main.cpp:37
> 
> The command looked like this in gdb when it failed:

That all looks pretty normal below here.

> 
> (gdb) file cc1
> Reading symbols from /home/mykland/llvm-gcc/obj/gcc/cc1...done.
> Using host libthread_db library "/lib/libthread_db.so.1".
> (gdb) run -quiet -v -I. -I. -I../../llvm-gcc4-1.8-source/gcc
> -I../../llvm-gcc4-1.8-source/gcc/.
> -I../../llvm-gcc4-1.8-source/gcc/../include
> -I../../llvm-gcc4-1.8-source/gcc/../libcpp/include
> -I/home/mykland/llvm/include -I/home/mykland/llvm/include
> -iprefix /home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/ -isystem /home/mykland/llvm-gcc/obj/gcc/include -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -DL_muldi3 -DHIDE_EXPORTS -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -isystem ./include ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -quiet -dumpbase libgcc2.c -mtune=pentiumpro -auxbase-strip libgcc/./_muldi3.o -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -version -fPIC -fvisibility=hidden -o /tmp/ccaIovPB.s -v
> Starting program: /home/mykland/llvm-gcc/obj/gcc/cc1 -quiet -v -I. -I.
> -I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/.
> -I../../llvm-gcc4-1.8-source/gcc/../include
> -I../../llvm-gcc4-1.8-source/gcc/../libcpp/include
> -I/home/mykland/llvm/include -I/home/mykland/llvm/include
> -iprefix /home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/ -isystem /home/mykland/llvm-gcc/obj/gcc/include -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -DL_muldi3 -DHIDE_EXPORTS -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -isystem ./include ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -quiet -dumpbase libgcc2.c -mtune=pentiumpro -auxbase-strip libgcc/./_muldi3.o -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -version -fPIC -fvisibility=hidden -o /tmp/ccaIovPB.s -v
> [Thread debugging using libthread_db enabled]
> [New Thread -1211050320 (LWP 4569)]
> ignoring nonexistent directory
> "/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include"
> ignoring nonexistent directory
> "/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include"
> ignoring duplicate directory "./include"
> ignoring nonexistent directory
> "/home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/include"
> ignoring nonexistent directory
> "/home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/../../../../i686-pc-linux-gnu/include"
> ignoring nonexistent directory
> "/home/mykland/llvm-gcc/obj/../install//include"
> ignoring nonexistent directory
> "/home/mykland/llvm-gcc/obj/../install//lib/gcc/i686-pc-linux-gnu/4.0.1/include"
> ignoring nonexistent directory
> "/home/mykland/llvm-gcc/obj/../install//lib/gcc/i686-pc-linux-gnu/4.0.1/../../../../i686-pc-linux-gnu/include"
> ignoring duplicate directory "."
> ignoring duplicate directory "../../llvm-gcc4-1.8-source/gcc/."
> ignoring duplicate directory "/home/mykland/llvm/include"
> #include "..." search starts here:
> #include <...> search starts here:
>  .
>  ../../llvm-gcc4-1.8-source/gcc
>  ../../llvm-gcc4-1.8-source/gcc/../include
>  ../../llvm-gcc4-1.8-source/gcc/../libcpp/include
>  /home/mykland/llvm/include
>  /home/mykland/llvm-gcc/obj/gcc/include
>  /usr/local/include
>  /usr/include
> End of search list.
> GNU C version 4.0.1 LLVM (Apple Computer, Inc. build 5400)
> (i686-pc-linux-gnu)
>         compiled by GNU C version 4.1.0 (SUSE Linux).
> GGC heuristics: --param ggc-min-expand=99 --param
> ggc-min-heapsize=129349
> Compiler executable checksum: b890601e6422e9101b52d960e6263283
> 
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread -1211050320 (LWP 4569)]
> 0x0862d65c in llvm::LiveVariables::runOnMachineFunction ()
> 
> -- Robert.
> 
> Reid Spencer wrote: 
> > This is an libpath problem.  When xgcc runs it wants to dynamically link
> > the libgcc.so. When you run it from the command line it will find your
> > system libgcc.so (which works) and so you don't see the segfault.  When
> > you run xgcc from the Makefile, it will have set LD_LIBRARY_PATH to get
> > your <cfebuilddir>/gcc directory which will find the libgcc.so that it
> > just built, which is the one that is segfaulting.  To fix this, do the
> > following:
> > 
> > LD_LIBRARY_PATH=<cfebuilddir>/gcc <insert xgcc command line here>
> > 
> > Then it will run xgcc so that it will find the new (buggy) libgcc.so
> > 
> > Hopefully that will reproduce the problem and you can then get a stack
> > trace from cc1
> > 
> > Reid.
> > 
> > On Mon, 2006-11-06 at 10:45 -0800, Robert Mykland wrote:
> >   
> > > Reid,
> > > 
> > > I followed the steps but got stuck as described below:
> > > 
> > > Reid Spencer wrote: 
> > >     
> > > > Hi Robert,
> > > > 
> > > > Please make sure that you:
> > > > 
> > > > 1. Completely rebuild LLVM (make clean; make reconfigure; make
> > > > tools-only)
> > > >   
> > > >       
> > > This all worked great.
> > >     
> > > > 2. Completely rebuild llvm-gcc (wipe out the build dir with rm -rf,
> > > > configure llvm-gcc 
> > > >    and rebuild it)
> > > >   
> > > >       
> > > Okay, got the same error as before.
> > >     
> > > > If you've done that, then please enter the debugger and get a stack
> > > > trace for us. 
> > > > You will need to:
> > > > 
> > > > 1. Capture the xgcc compile command that failed
> > > >   
> > > >       
> > > I captured this command and it is:
> > > 
> > > /home/mykland/llvm-gcc/obj/gcc/xgcc -B/home/mykland/llvm-gcc/obj/gcc/
> > > -B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/bin/
> > > -B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/lib/
> > > -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/. -I../../llvm-gcc4-1.8-source/gcc/../include -I../../llvm-gcc4-1.8-source/gcc/../libcpp/include  -I/home/mykland/llvm/include -I/home/mykland/llvm/include -DL_muldi3 -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -o libgcc/./_muldi3.o
> > > 
> > > My problem is that when I rerun the command it doesn't fail in the
> > > same way.  Several things can't be found anymore.  The first time the
> > > command runs inside the makefile environment the messages look like
> > > this:
> > > 
> > > /home/mykland/llvm-gcc/obj/gcc/xgcc -B/home/mykland/llvm-gcc/obj/gcc/
> > > -B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/bin/
> > > -B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/lib/
> > > -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/. -I../../llvm-gcc4-1.8-source/gcc/../include -I../../llvm-gcc4-1.8-source/gcc/../libcpp/include  -I/home/mykland/llvm/include -I/home/mykland/llvm/include -DL_muldi3 -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -o libgcc/./_muldi3.o
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:541: internal compiler error:
> > > Segmentation fault
> > > Please submit a full bug report,
> > > with preprocessed source if appropriate.
> > > See <URL:http://llvm.org/bugs> for instructions.
> > > make[2]: *** [libgcc/./_muldi3.o] Error 1
> > > make[2]: Leaving directory `/home/mykland/llvm-gcc/obj/gcc'
> > > make[1]: *** [libgcc.a] Error 2
> > > make[1]: Leaving directory `/home/mykland/llvm-gcc/obj/gcc'
> > > make: *** [all-gcc] Error 2
> > > 
> > > Afterwards, when I run it on the command line after the make has
> > > failed the error messages look like this:
> > > 
> > > mykland at ascenium:~/llvm-gcc/obj> /home/mykland/llvm-gcc/obj/gcc/xgcc
> > > -B/home/mykland/llvm-gcc/obj/gcc/
> > > -B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/bin/
> > > -B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/lib/
> > > -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -O2  -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/. -I../../llvm-gcc4-1.8-source/gcc/../include -I../../llvm-gcc4-1.8-source/gcc/../libcpp/include  -I/home/mykland/llvm/include -I/home/mykland/llvm/include -DL_muldi3 -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -o libgcc/./_muldi3.o
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:35:23: error: auto-host.h: No
> > > such file or directory
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:40:21: error: tconfig.h: No
> > > such file or directory
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:43:16: error: tm.h: No such
> > > file or directory
> > > In file included from ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:64:
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.h:214:3: error: #error "expand
> > > the table"../../llvm-gcc4-1.8-source/gcc/libgcc2.c: In function
> > > ‘__mulhi3’:
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:535: error: ‘BITS_PER_UNIT’
> > > undeclared (first use in this function)
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:535: error: (Each undeclared
> > > identifier is reported only once
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:535: error: for each function
> > > it appears in.)
> > > 
> > > ...or with the -v command added they look like this:
> > > 
> > > mykland at ascenium:~/llvm-gcc/obj> /home/mykland/llvm-gcc/obj/gcc/xgcc
> > > -B/home/mykland/llvm-gcc/obj/gcc/
> > > -B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/bin/
> > > -B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/lib/
> > > -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -O2  -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/. -I../../llvm-gcc4-1.8-source/gcc/../include -I../../llvm-gcc4-1.8-source/gcc/../libcpp/include  -I/home/mykland/llvm/include -I/home/mykland/llvm/include -DL_muldi3 -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -o libgcc/./_muldi3.o -v
> > > Reading specs from /home/mykland/llvm-gcc/obj/gcc/specs
> > > Target: i686-pc-linux-gnu
> > > Configured with: ../llvm-gcc4-1.8-source/configure
> > > --prefix=/home/mykland/llvm-gcc/obj/../install/
> > > --enable-llvm=/home/mykland/llvm --enable-languages=c,c++
> > > --disable-threads
> > > Thread model: single
> > > gcc version 4.0.1 LLVM (Apple Computer, Inc. build 5400)
> > >  /home/mykland/llvm-gcc/obj/gcc/cc1 -quiet -v -I. -I.
> > > -I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/.
> > > -I../../llvm-gcc4-1.8-source/gcc/../include
> > > -I../../llvm-gcc4-1.8-source/gcc/../libcpp/include
> > > -I/home/mykland/llvm/include -I/home/mykland/llvm/include
> > > -iprefix /home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/ -isystem /home/mykland/llvm-gcc/obj/gcc/include -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -DL_muldi3 -DHIDE_EXPORTS -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -isystem ./include ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -quiet -dumpbase libgcc2.c -mtune=pentiumpro -auxbase-strip libgcc/./_muldi3.o -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -version -fPIC -fvisibility=hidden -o /tmp/ccsulgFx.s
> > > ignoring nonexistent directory
> > > "/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include"
> > > ignoring nonexistent directory
> > > "/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include"
> > > ignoring nonexistent directory "./include"
> > > ignoring nonexistent directory
> > > "/home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/include"
> > > ignoring nonexistent directory
> > > "/home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/../../../../i686-pc-linux-gnu/include"
> > > ignoring nonexistent directory
> > > "/home/mykland/llvm-gcc/obj/../install//include"
> > > ignoring nonexistent directory
> > > "/home/mykland/llvm-gcc/obj/../install//lib/gcc/i686-pc-linux-gnu/4.0.1/include"
> > > ignoring nonexistent directory
> > > "/home/mykland/llvm-gcc/obj/../install//lib/gcc/i686-pc-linux-gnu/4.0.1/../../../../i686-pc-linux-gnu/include"
> > > ignoring duplicate directory "."
> > > ignoring duplicate directory "../../llvm-gcc4-1.8-source/gcc/."
> > > ignoring duplicate directory "/home/mykland/llvm/include"
> > > #include "..." search starts here:
> > > #include <...> search starts here:
> > >  .
> > >  ../../llvm-gcc4-1.8-source/gcc
> > >  ../../llvm-gcc4-1.8-source/gcc/../include
> > >  ../../llvm-gcc4-1.8-source/gcc/../libcpp/include
> > >  /home/mykland/llvm/include
> > >  /home/mykland/llvm-gcc/obj/gcc/include
> > >  /usr/local/include
> > >  /usr/include
> > > End of search list.
> > > GNU C version 4.0.1 LLVM (Apple Computer, Inc. build 5400)
> > > (i686-pc-linux-gnu)
> > >         compiled by GNU C version 4.1.0 (SUSE Linux).
> > > GGC heuristics: --param ggc-min-expand=99 --param
> > > ggc-min-heapsize=129349
> > > Compiler executable checksum: b890601e6422e9101b52d960e6263283
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:35:23: error: auto-host.h: No
> > > such file or directory
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:40:21: error: tconfig.h: No
> > > such file or directory
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:43:16: error: tm.h: No such
> > > file or directory
> > > In file included from ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:64:
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.h:214:3: error: #error "expand
> > > the table"../../llvm-gcc4-1.8-source/gcc/libgcc2.c: In function
> > > ‘__mulhi3’:
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:535: error: ‘BITS_PER_UNIT’
> > > undeclared (first use in this function)
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:535: error: (Each undeclared
> > > identifier is reported only once
> > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:535: error: for each function
> > > it appears in.)
> > > 
> > > What now?
> > > 
> > > Regards,
> > > 
> > > -- Robert.
> > >     
> > > > 2. Run that command manually with the -v option to print out the
> > > > commands it is running
> > > > 3. Debug gcc/cc1 and run it with the arguments shown in step 2
> > > > 4. Get a stack trace with "where"
> > > > 
> > > > Reid.
> > > > 
> > > > On Sun, 2006-11-05 at 20:15 -0800, Robert Mykland wrote:
> > > >   
> > > >       
> > > > > I was having video problems, so upgraded my Linux box from SUSE 9.3, 
> > > > > where LLVM frontend 4 source built fine, to SUSE 10.1, where I got the 
> > > > > error message:
> > > > > 
> > > > > ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:541: internal compiler error: 
> > > > > Segmentation fault
> > > > > Please submit a full bug report,
> > > > > with preprocessed source if appropriate.
> > > > > See <URL:http://llvm.org/bugs> for instructions.
> > > > > 
> > > > > This version of SUSE uses version 4.1.0 of the gcc compiler.
> > > > > 
> > > > > What now?
> > > > > 
> > > > > -- Robert.
> > > > > 
> > > > > _______________________________________________
> > > > > LLVM Developers mailing list
> > > > > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> > > > > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> > > > >     
> > > > >         
> > > > _______________________________________________
> > > > LLVM Developers mailing list
> > > > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> > > > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> > > > 
> > > > 
> > > >   
> > > >       
> > > _______________________________________________
> > > LLVM Developers mailing list
> > > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> > > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> > >     
> > 
> > _______________________________________________
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