------- Comment #2 from jv244 at cam dot ac dot uk 2007-06-22 10:13 -------
(In reply to comment #1)
> Can you provide a backtrace?
>
1 compute_screening_matrices
Breakpoint 1, internal_error (gmsgid=0xae1dff "in %s, at %s:%d")
at /scratch/vondele/gcc_trunk/gcc/gcc/diagnostic.c:596
596 {
(gdb) bt
#0 internal_error (gmsgid=0xae1dff "in %s, at %s:%d")
at /scratch/vondele/gcc_trunk/gcc/gcc/diagnostic.c:596
#1 0x0000000000514a3c in fancy_abort (file=Variable "file" is not available.
) at /scratch/vondele/gcc_trunk/gcc/gcc/diagnostic.c:656
#2 0x00000000007f4818 in build2_stat (code=MULT_EXPR, tt=0x2a95a5c6c0,
arg0=0x2ac292cc00,
arg1=0x2ab6eca810) at /scratch/vondele/gcc_trunk/gcc/gcc/tree.c:3074
#3 0x0000000000a2fa90 in aff_combination_add_elt (comb=0x7fbfffe9b0,
elt=0x2aebf44b40, scale=
{low = 8, high = 0}) at
/scratch/vondele/gcc_trunk/gcc/gcc/tree-affine.c:175
#4 0x0000000000a2ff26 in aff_combination_add (comb1=0x7fbfffe9b0,
comb2=0x7fbfffe7d0)
at /scratch/vondele/gcc_trunk/gcc/gcc/tree-affine.c:202
#5 0x0000000000764511 in get_computation_aff (loop=0x2ab16d95a0, use=Variable
"use" is not available.
)
at /scratch/vondele/gcc_trunk/gcc/gcc/tree-ssa-loop-ivopts.c:2669
#6 0x0000000000765fd3 in rewrite_use_address (data=0x7fbfffedf0,
use=0x31199330, cand=0x20bc1650)
at /scratch/vondele/gcc_trunk/gcc/gcc/tree-ssa-loop-ivopts.c:5086
#7 0x000000000076687e in rewrite_uses (data=0x7fbfffedf0)
at /scratch/vondele/gcc_trunk/gcc/gcc/tree-ssa-loop-ivopts.c:5147
#8 0x0000000000768c93 in tree_ssa_iv_optimize_loop (data=0x7fbfffedf0,
loop=Variable "loop" is not availa ble.
)
at /scratch/vondele/gcc_trunk/gcc/gcc/tree-ssa-loop-ivopts.c:5346
#9 0x00000000007691c0 in tree_ssa_iv_optimize ()
at /scratch/vondele/gcc_trunk/gcc/gcc/tree-ssa-loop-ivopts.c:5379
#10 0x0000000000775d7d in tree_ssa_loop_ivopts ()
at /scratch/vondele/gcc_trunk/gcc/gcc/tree-ssa-loop.c:514
#11 0x000000000062b709 in execute_one_pass (pass=0xd32b80)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32459
