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[Bug tree-optimization/25371] -ftree-vectorize results in internal compiler error on AMD64
- From: "sebastian dot pop at cri dot ensmp dot fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 5 Jan 2006 16:32:59 -0000
- Subject: [Bug tree-optimization/25371] -ftree-vectorize results in internal compiler error on AMD64
- References: <bug-25371-11859@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from sebastian dot pop at cri dot ensmp dot fr 2006-01-05 16:32 -------
(In reply to comment #3)
> Vectorizer's dump file can help.
>
vect dump ends with:
/home/seb/ex/pr25371.c:26: note: Access function of PHI: {0, +,
1}_4(get_loop_exit_condition
if (i_99 < D.1700_228) goto <L54>; else goto <L55>;)
/home/seb/ex/pr25371.c:26: note: === vec_transform_loop ===
/home/seb/ex/pr25371.c:26: note: === vect_do_peeling_for_alignment ===
and the problem seems to come from the fact that in
vect_create_addr_base_for_vector_ref, we're calling
base_offset = force_gimple_operand (base_offset, &new_stmt, false, dest);
with a base_offset that contains a chrec:
((num_tD.1607 *) (long unsigned intD.4) {0, +, nD.1614_23}_4 * 16B);
--
sebastian dot pop at cri dot ensmp dot fr changed:
What |Removed |Added
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CC| |sebastian dot pop at cri dot
| |ensmp dot fr
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25371