| /raid/tecosim/it/devel/projects/develtools/src/gcc-4.3.0/gcc/libgcc2.c:1970:
| 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.

I am seeing this too.  I tracked it back to line 5613 of
tree-ssa-loop-ivopts.c (rewrite_use_compare).  There is
a line:

        bound = cp->value;

and cp is null.  cp is set with a call to get_use_iv_cost and that
routine does return NULL in some cases so I think we need to check
for a NULL cp before dereferencing it.  I changed

        if (bound)
to
        if (cp && cp->value)

and set bound inside the if but now I am dying when compiling
decNumber.c so I don't have a bootstrap working yet.

Steve Ellcey
[EMAIL PROTECTED]

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