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[Bug tree-optimization/24483] [4.1 Regression] ICE in ivopts
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 25 Oct 2005 15:30:24 -0000
- Subject: [Bug tree-optimization/24483] [4.1 Regression] ICE in ivopts
- References: <bug-24483-6528@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from steven at gcc dot gnu dot org 2005-10-25 15:30 -------
Backtrace:
Breakpoint 1, fancy_abort (file=0xb1cc18
"../../mainline/gcc/tree-ssa-loop-ivopts.c",
line=2948, function=0xb1d0bb "aff_combination_to_tree") at diagnostic.c:590
590 internal_error ("in %s, at %s:%d", function, trim_filename (file),
line);
(gdb) up
#1 0x000000000056db37 in aff_combination_to_tree (comb=0x7fbfffec30)
at tree-ssa-loop-ivopts.c:2948
2948 gcc_assert (comb->n == MAX_AFF_ELTS || comb->rest == NULL_TREE);
(gdb) p *comb
$17 = {type = 0x2a9589e580, mask = 4294967295, offset = 0, n = 2, elts =
{0x2a95a8f680,
0x2a95a639a0, 0x2a95a6d8c0, 0x2a95a6d850, 0x2a95a6d850, 0x2a95a6d8c0,
0x2a95a6d930,
0x2a95a6d9a0}, coefs = {1, 1, 0, 0, 1, 1, 1, 1}, rest = 0x2a95a8f700}
(gdb) call debug_generic_expr (comb->elts[0])
(unsigned intD.3) -j9D.1618_41
(gdb) call debug_generic_expr (comb->elts[1])
ivtmp.30D.1722_4
(gdb) call debug_generic_expr (comb->elts[2])
j6D.1615_65
(gdb) call debug_generic_expr (comb->elts[3])
j5D.1614_64
(gdb) call debug_generic_expr (comb->elts[4])
j5D.1614_64
(gdb) call debug_generic_expr (comb->elts[5])
j6D.1615_65
(gdb) call debug_generic_expr (comb->elts[6])
j7D.1616_66
(gdb) call debug_generic_expr (comb->elts[7])
j8D.1617_67
(gdb) call debug_generic_expr (comb->rest)
(unsigned intD.3) j9D.1618_41
(gdb)
Why do we have (comb->n == 2) when we have 8 elts?
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2005-10-25 15:30:24
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24483