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[Bug tree-optimization/32461] [4.3 Regression] Segmentation fault in build_classic_dist_vector_1() at tree-data-ref.c:2700
- From: "sebpop at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 Jun 2007 10:11:01 -0000
- Subject: [Bug tree-optimization/32461] [4.3 Regression] Segmentation fault in build_classic_dist_vector_1() at tree-data-ref.c:2700
- References: <bug-32461-13856@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #14 from sebpop at gmail dot com 2007-06-24 10:11 -------
Subject: Re: [4.3 Regression] Segmentation fault in
build_classic_dist_vector_1() at tree-data-ref.c:2700
On 6/24/07, Sebastian Pop <sebpop@gmail.com> wrote:
> So this just looks like we want to improve operand_equal_p, and not
> touch the folder this time. Probably we can implement one more flag
> for stripping nop conversions of operands.
>
Actually I think that the test in operand_equal_p is too strong for
our case where the expression under the nops is just an SSA_NAME.
Would a patch like the following one be acceptable? I've put this
patch to bootstrap and test with --enable-checking=yes,fold,rtl.
Sebastian
------- Comment #15 from sebpop at gmail dot com 2007-06-24 10:11 -------
Created an attachment (id=13774)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13774&action=view)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32461