Error due to function call while checking fn attributes

["Rohit Arul Raj" <rohitarulraj at gmail dot com>]

Hi all,

I am working with gcc 4.1.1.

I have a target dependent function attribute to check the function mode.
Before emitting the call instruction, i just want to check the
function attribute and depending on that i need to emit the call
instruction.

After making the modifications, while building the compiler, i am
getting the following errors:

/home/rohit/TestPXE/BUILD/gcc-new4.1.1/./gcc/xgcc
-B/home/rohit/TestPXE/BUILD/gcc-new4.1.1/./gcc/
-B/home/rohit/Z-MOD//bin/ -B/home/rohit/Z-MOD/lib/ -isystem
/home/rohit/Z-MOD/include -isystem /home/rohit/Z-MOD/sys-include -O2
-O2 -g -O2  -DIN_GCC -DCROSS_COMPILE   -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include  -malign-lbranch -mno-multiply-high -g
-DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I.
-I../../../gcc-4.1.1/gcc -I../../../gcc-4.1.1/gcc/.
-I../../../gcc-4.1.1/gcc/../include
-I../../../gcc-4.1.1/gcc/../libcpp/include  -DL_absvsi2 -c
../../../gcc-4.1.1/gcc/libgcc2.c -o libgcc/./_absvsi2.o

Error is :
../../../gcc-pxe-4.1.1/gcc/libgcc2.c: In function â__absvsi2â:
../../../gcc-pxe-4.1.1/gcc/libgcc2.c:220: internal compiler error:
Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

The error is due to the statement:
gcc_assert (TREE_CODE (func_decl) == FUNCTION_DECL);

Actual error due to: TREE_CODE (func_decl)

The source file:
#ifdef L_absvsi2
Wtype
__absvSI2 (Wtype a)
{
 Wtype w = a;

 if (a < 0)
#ifdef L_negvsi2
   w = __negvSI2 (a);
#else
   w = -a;

 if (w < 0)
   abort (); // Error line

#endif

  return w;
}

When the compiler emits a function call for abort(), i get the above
mentioned error.

When we look at the command line options, O2 optimization is enabled.
If O0 is given , the code works fine.

Any idea where i am going wrong!!

Regards,
Rohit