[LLVMdev] llvm-gcc build fail on RHEL v4 x86_64

[Jeff Cohen]

Already have concerning gcc 3.4: http://llvm.org/bugs/show_bug.cgi?id=1056

As for llvm-test issues, quite frankly I don't know how well they're 
expected to work on x86_64.  No one has jumped in and said they run fine 
on their x86_64 system.  Maybe they're code generator bugs, or maybe 
they're portability issues for FreeBSD (though I never saw such massive 
problems with 32-bit FreeBSD when I last ran that).  I already fixed one 
problem I found with some shell scripts.  The remaining failures do not 
have an obvious cause, or even clear if it's a single cause.  There are 
280 "FAILED!" messages altogether.

It's also not clear if gcc 4.0 could still be a source of problems.  4.1 
is known to be bad also, after all.  Is there a version known to be 
good?  4.2, 4.3?

Evan Cheng wrote:
>
> On Jan 9, 2007, at 9:48 PM, Jeff Cohen wrote:
>
>> gcc 3.4.x builds LLVM incorrectly on x86_64.
>>
>> gcc 4.0 will get you much farther, but the llvm-test regression tests
>> still have massive problems.
>
> Please file bug reports on these. Thanks!
>
> Evan
>
>>
>> Zhongxing Xu wrote:
>>> The machine is a Dell workstation with xeon processors. The OS is RHEL
>>> 4 AS x86_64
>>> gcc version is 3.4.6
>>>
>>> I checked out the llvm-gcc from svn, configured with
>>> ../llvm-gcc/configure --prefix=$HOME/llvm-gcc-install
>>> --enable-llvm=$HOME/llvmobj/ --enable-languages=c,c++
>>> --enable-checking --disable-shared --disable-multilib
>>>
>>> and get the following error message:
>>>
>>> make GCC_FOR_TARGET="/home/xzx/llvm-gcc-obj/gcc/xgcc
>>> -B/home/xzx/llvm-gcc-obj/gcc/
>>> -B/home/xzx/llvm-gcc-install/x86_64-unknown-linux-gnu/bin/
>>> -B/home/xzx/llvm-gcc-install/x86_64-unknown-linux-gnu/lib/ -isystem
>>> /home/xzx/llvm-gcc-install/x86_64-unknown-linux-gnu/include -isystem
>>> /home/xzx/llvm-gcc-install/x86_64-unknown-linux-gnu/sys-include" \
>>>   AR_FOR_TARGET="ar" \
>>>   AR_CREATE_FOR_TARGET="ar  rc" \
>>>   AR_EXTRACT_FOR_TARGET="ar  x" \
>>>   AR_FLAGS_FOR_TARGET="" \
>>>   CC="gcc" CFLAGS="-g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes
>>> -Wmissing-prototypes -Wold-style-definition -fno-common " \
>>>   BUILD_PREFIX="" \
>>>   BUILD_PREFIX_1="loser-" \
>>>   LANGUAGES="" \
>>>   LIBGCC2_CFLAGS="-O2  -DIN_GCC    -W -Wall -Wwrite-strings
>>> -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
>>> -isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
>>> -D__GCC_FLOAT_NOT_NEEDED  "  \
>>>   MULTILIB_CFLAGS="" T= crtbegin.o crtend.o crtbeginS.o crtendS.o
>>> crtbeginT.o
>>> make[3]: Entering directory `/home/xzx/llvm-gcc-obj/gcc'
>>> make[3]: `crtbegin.o' is up to date.
>>> make[3]: `crtend.o' is up to date.
>>> make[3]: `crtbeginS.o' is up to date.
>>> make[3]: `crtendS.o' is up to date.
>>> make[3]: `crtbeginT.o' is up to date.
>>> make[3]: Leaving directory `/home/xzx/llvm-gcc-obj/gcc'
>>> /home/xzx/llvm-gcc-obj/gcc/xgcc -B/home/xzx/llvm-gcc-obj/gcc/
>>> -B/home/xzx/llvm-gcc-install/x86_64-unknown-linux-gnu/bin/
>>> -B/home/xzx/llvm-gcc-install/x86_64-unknown-linux-gnu/lib/ -isystem
>>> /home/xzx/llvm-gcc-install/x86_64-unknown-linux-gnu/include -isystem
>>> /home/xzx/llvm-gcc-install/x86_64-unknown-linux-gnu/sys-include -O2
>>> -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes
>>> -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC
>>> -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I.
>>> -I../../llvm-gcc/gcc -I../../llvm-gcc/gcc/.
>>> -I../../llvm-gcc/gcc/../include
>>> -I../../llvm-gcc/gcc/../libcpp/include  -I/home/xzx/llvm/include
>>> -I/home/xzx/llvmobj//include -DL_lshrdi3 -c
>>> ../../llvm-gcc/gcc/libgcc2.c -o libgcc/./_lshrdi3.o
>>> WARNING: 128-bit integers not supported!
>>> ../../llvm-gcc/gcc/libgcc2.c: In function '__lshrti3':
>>> ../../llvm-gcc/gcc/libgcc2.c:412: internal compiler error:
>>> Segmentation fault
>>> Please submit a full bug report,
>>> with preprocessed source if appropriate.
>>> See <URL:http://llvm.org/bugs <http://llvm.org/bugs>> for instructions.
>>> make[2]: *** [libgcc/./_lshrdi3.o] Error 1
>>> make[2]: Leaving directory `/home/xzx/llvm-gcc-obj/gcc'
>>> make[1]: *** [stmp-multilib] Error 2
>>> make[1]: Leaving directory `/home/xzx/llvm-gcc-obj/gcc'
>>> make: *** [install-gcc] Error 2
>>>
>>> And after I run
>>> make install
>>> I get only c++ and g++ in my llvm-gcc-install directory.
>>> ------------------------------------------------------------------------ 
>>>
>>>
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>>>
>>
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