[LLVMdev] llvm-gcc 4.2 assertion failed on linux x86_64

Bill Wendling
2008-03-25T07:51:00Z

Hi Chandler,

This looks like a FE error, so you probably won't be able to get an
LLVM bitcode file for us. You could help by whittling the test case
down to something managable. First get a preprocessed file. Then I
would suggest following the instructions on this page to reduce the
testcase:

	http://gcc.gnu.org/wiki/A_guide_to_testcase_reduction

That will help us a lot with the bug report.

-bw

On Mar 24, 2008, at 11:49 PM, Chandler Carruth wrote:
> Hello,
>
> Trying to get my machine building up-to-date, and a nightly going, i
> ran into an assertion during the build of llvm-gcc 4.2:
>
> $ make -j2
> <snip!>
> /home/chandlerc/code/compilers/build/llvm-gcc/./gcc/xgcc
> -B/home/chandlerc/code/compilers/build/llvm-gcc/./gcc/
> -B/home/chandlerc/code/compilers/install/llvm-gcc/x86_64-pc-linux-
> gnu/bin/
> -B/home/chandlerc/code/compilers/install/llvm-gcc/x86_64-pc-linux-
> gnu/lib/
> -isystem /home/chandlerc/code/compilers/install/llvm-gcc/x86_64-pc-
> linux-gnu/include
> -isystem /home/chandlerc/code/compilers/install/llvm-gcc/x86_64-pc-
> linux-gnu/sys-include
> -O2  -O2 -march=k8 -mfpmath=sse -pipe  -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/home/chandlerc/code/compilers/llvm-gcc/gcc
> -I/home/chandlerc/code/compilers/llvm-gcc/gcc/.
> -I/home/chandlerc/code/compilers/llvm-gcc/gcc/../include
> -I/home/chandlerc/code/compilers/llvm-gcc/gcc/../libcpp/include
> -I/home/chandlerc/code/compilers/llvm-gcc/gcc/../libdecnumber
> -I../libdecnumber -I/home/chandlerc/code/compilers/llvm/include
> -I/home/chandlerc/code/compilers/build/llvm/include -DL_powitf2 -c
> /home/chandlerc/code/compilers/llvm-gcc/gcc/libgcc2.c -o
> libgcc/./_powitf2.o
> cc1: /home/chandlerc/code/compilers/llvm-gcc/gcc/llvm-types.cpp:81:
> const llvm::Type* llvm_set_type(tree_node*, const llvm::Type*):
> Assertion `(!(__extension__ ({ const tree __t = (Tr); if
> (tree_code_type[(int) (((enum tree_code) (__t)->common.code))] !>
(tcc_type)) tree_class_check_failed (__t, (tcc_type),
> "/home/chandlerc/code/compilers/llvm-gcc/gcc/llvm-types.cpp", 81,
> __FUNCTION__); __t; })->type.size) || !Ty->isSized() ||
> !isInt64((__extension__ ({ const tree __t = (Tr); if
> (tree_code_type[(int) (((enum tree_code) (__t)->common.code))] !>
(tcc_type)) tree_class_check_failed (__t, (tcc_type),
> "/home/chandlerc/code/compilers/llvm-gcc/gcc/llvm-types.cpp", 81,
> __FUNCTION__); __t; })->type.size), true) || getInt64((__extension__
> ({ const tree __t = (Tr); if (tree_code_type[(int) (((enum tree_code)
> (__t)->common.code))] != (tcc_type)) tree_class_check_failed (__t,
> (tcc_type), "/home/chandlerc/code/compilers/llvm-gcc/gcc/llvm-
> types.cpp",
> 81, __FUNCTION__); __t; })->type.size), true) =>
getTargetData().getABITypeSizeInBits(Ty)) && "LLVM type size
doesn't
> match GCC type size!"' failed.
> /home/chandlerc/code/compilers/llvm-gcc/gcc/libgcc2.c: In function
> '__powixf2':
> /home/chandlerc/code/compilers/llvm-gcc/gcc/libgcc2.c:1765: internal
> compiler error: Aborted
>
> My configure:
> .../configure   --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu
> --target=x86_64-pc-linux-gnu
> --prefix=/home/chandlerc/code/compilers/install/llvm-gcc
> --disable-multilib --disable-shared
> --enable-llvm=/home/chandlerc/code/compilers/build/llvm
> --program-prefix=llvm- --enable-languages=c,c++
>
> If more information would help, just let me know.
>
> -Chandler
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