<br>I get the following assertion failure during my attempt to build an x86_64->ARM cross compiler.<br><br><llvm-build>/./gcc/xgcc -B<llvm-build>/./gcc/ -B<llvm-install>/arm-none-linux-gnueabi/bin/ -B<llvm-install>/arm-none-linux-gnueabi/lib/ -isystem <llvm-install>/arm-none-linux-gnueabi/include -isystem <llvm-install>/arm-none-linux-gnueabi/sys-include  -O2  -O2 -g -O2  -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE   -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-4.2-source>/gcc -I<llvm-gcc-4.2-source>/gcc/. -I<llvm-gcc-4.2-source>/gcc/../include -I<llvm-gcc-4.2-source>/gcc/../libcpp/include  -I<llvm-gcc-4.2-source>/gcc/../libdecnumber -I../libdecnumber -I<llvm-install>/llvm/include -I<llvm-src/llvm/include -DL_muldc3 -fvisibility=hidden -DHIDE_EXPORTS -c ../../../../src/llvm-gcc-4.2/gcc/libgcc2.c -o libgcc/./_muldc3.o<br>
cc1: <llvm-src>/llvm/lib/CodeGen/RegisterScavenging.cpp:273: void llvm::RegScavenger::forward(): Assertion `(isReserved(Reg) || isUnused(Reg) || IsImpDef || isImplicitlyDefined(Reg) || isLiveInButUnusedBefore(Reg, MI, MBB, TRI, MRI)) && "Re-defining a live register!"' failed.<br>
../../../../src/llvm-gcc-4.2/gcc/libgcc2.c:1914: internal compiler error: Aborted<br>Please submit a full bug report,<br>with preprocessed source if appropriate.<br>See <URL:<a href="http://developer.apple.com/bugreporter">http://developer.apple.com/bugreporter</a>> for instructions.<br>
<br>Can some one please tell me what the problem is?<br><br>Here is some relevant info:<br><br>LLVM and llvm-gcc-4.2 source rev 64487<br>$ svn info<br>Path: .<br>URL: <a href="http://llvm.org/svn/llvm-project/llvm/trunk">http://llvm.org/svn/llvm-project/llvm/trunk</a><br>
Repository Root: <a href="http://llvm.org/svn/llvm-project">http://llvm.org/svn/llvm-project</a><br>Repository UUID: 91177308-0d34-0410-b5e6-96231b3b80d8<br>Revision: 64487<br>Node Kind: directory<br>Schedule: normal<br>Last Changed Author: djg<br>
Last Changed Rev: 64468<br>Last Changed Date: 2009-02-13 12:45:12 -0500 (Fri, 13 Feb 2009)<br><br>$ svn info<br>Path: .<br>URL: <a href="http://llvm.org/svn/llvm-project/llvm-gcc-4.2/trunk">http://llvm.org/svn/llvm-project/llvm-gcc-4.2/trunk</a><br>
Repository Root: <a href="http://llvm.org/svn/llvm-project">http://llvm.org/svn/llvm-project</a><br>Repository UUID: 91177308-0d34-0410-b5e6-96231b3b80d8<br>Revision: 64487<br>Node Kind: directory<br>Schedule: normal<br>Last Changed Author: baldrick<br>
Last Changed Rev: 64234<br>Last Changed Date: 2009-02-10 15:43:26 -0500 (Tue, 10 Feb 2009)<br><br>LLVM configured and successfully built as :<br><llvm-source>/configure --with-llvmgccdir=<llvm-install>/llvm-gcc-4.2 --enable-optimized --enable-jit --prefix=<llvm-install/llvm --target=arm-unknown-linux-gnueabi<br>
<br>llvm-gcc-4.2 configured as :<br><llvm-gcc-4.2-source>/configure   --prefix=<llvm-install/llvm-gcc-4.2 --program-prefix=llvm-x86_64-arm --enable-llvm=<llvm-install>/llvm --disable-multilib --target=arm-none-linux-gnueabi --with-sysroot=<sysroot-location> --enable-languages=c,c++<br>
<br><br>Thanks,<br><br>Bharadwaj<br><br>