http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43290
--- Comment #22 from Ryan Hill dirtyepic at gentoo dot org 2011-10-07
01:37:51 UTC ---
And now 4.4.6.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43290
--- Comment #21 from Ryan Hill dirtyepic at gentoo dot org 2011-03-09
02:28:21 UTC ---
this is an in-branch regression from 4.4.4 and prevents -march=native bootstrap
on Sandy Bridge. want a new bug?
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43290
Ryan Hill dirtyepic at gentoo dot org changed:
What|Removed |Added
CC||dirtyepic at
--- Comment #18 from jakub at gcc dot gnu dot org 2010-03-10 08:07 ---
Created an attachment (id=20073)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20073action=view)
gcc45-pr43290.patch
Updated patch. This one includes testcases, and also fixes for -O+, when
optimizing we
--- Comment #19 from jakub at gcc dot gnu dot org 2010-03-10 18:17 ---
Subject: Bug 43290
Author: jakub
Date: Wed Mar 10 18:17:10 2010
New Revision: 157363
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=157363
Log:
PR debug/43290
* reg-notes.def
--- Comment #11 from jakub at gcc dot gnu dot org 2010-03-09 18:49 ---
Subject: Bug 43290
Author: jakub
Date: Tue Mar 9 18:48:43 2010
New Revision: 157313
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=157313
Log:
PR debug/43290
* config/i386/i386.c
--- Comment #12 from jakub at gcc dot gnu dot org 2010-03-09 19:01 ---
Fixed for 4.5+.
--
jakub at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #13 from hjl dot tools at gmail dot com 2010-03-09 22:39
---
(In reply to comment #9)
(In reply to comment #8)
Created an attachment (id=20044)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20044action=view) [edit]
gcc44-pr43290-2.patch
Another fix. Wonder
--- Comment #14 from hjl dot tools at gmail dot com 2010-03-09 22:44
---
Is there a way to add debug testcases from PR 36728 to gcc testsuite?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43290
--- Comment #15 from jakub at gcc dot gnu dot org 2010-03-09 22:54 ---
Yes, sticking them in gcc/testsuite/gcc.dg/guality/ and using
/* { dg-final { gdb-test line varname expectedvalue } } */
If my patch really broke that, then I think we'll need to use some REG_CFA_*
note or
--- Comment #16 from jakub at gcc dot gnu dot org 2010-03-10 00:33 ---
Created an attachment (id=20072)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20072action=view)
gcc45-pr43290.patch
Untested patch.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43290
--- Comment #17 from hjl dot tools at gmail dot com 2010-03-10 05:37
---
(In reply to comment #15)
Yes, sticking them in gcc/testsuite/gcc.dg/guality/ and using
/* { dg-final { gdb-test line varname expectedvalue } } */
If my patch really broke that, then I think we'll need to
--- Comment #1 from hjl dot tools at gmail dot com 2010-03-08 15:03 ---
Can you make it to fail on trunk or 4.4 branch since it
could be caused by other changes on redhat/gcc-4_4-branch?
If not, can you find out which change on redhat/gcc-4_4-branch
causes this?
--
--- Comment #2 from jakub at gcc dot gnu dot org 2010-03-08 15:12 ---
I've tried, but haven't succeeded, that's why I said the bug is latent there.
If we can prove this situation can't ever happen on 4.4 or 4.5 (4.5 on this
testcase doesn't use a drap reg at all, so we'd need some
--- Comment #3 from hjl dot tools at gmail dot com 2010-03-08 15:27 ---
(In reply to comment #2)
I've tried, but haven't succeeded, that's why I said the bug is latent there.
If we can prove this situation can't ever happen on 4.4 or 4.5 (4.5 on this
testcase doesn't use a drap reg
--- Comment #4 from jakub at gcc dot gnu dot org 2010-03-08 15:44 ---
Ah, the %ebp saved in DW_OP_reg5 is just a 4.4 bug, fixed by
http://gcc.gnu.org/ml/gcc-patches/2009-05/msg00235.html (the fix is in 4.5 and
4.4-RH). Saying that %ebp is saved in DW_OP_breg5 0 is correct and
--- Comment #5 from hjl dot tools at gmail dot com 2010-03-08 15:47 ---
(In reply to comment #4)
Ah, the %ebp saved in DW_OP_reg5 is just a 4.4 bug, fixed by
http://gcc.gnu.org/ml/gcc-patches/2009-05/msg00235.html (the fix is in 4.5 and
4.4-RH). Saying that %ebp is saved in
--- Comment #6 from jakub at gcc dot gnu dot org 2010-03-08 16:38 ---
Not sure if there haven't been follow-ups. There were at least 100 changes to
dwarf2out.c since 4.4 release, and at least 10 of them were related to the
indirect vs. direct stuff.
--
--- Comment #7 from jakub at gcc dot gnu dot org 2010-03-08 16:39 ---
Created an attachment (id=20043)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20043action=view)
gcc44-pr43290-1.patch
One alternative fix that cures this testcase on redhat/gcc-4_4-branch.
--
--- Comment #8 from jakub at gcc dot gnu dot org 2010-03-08 16:45 ---
Created an attachment (id=20044)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20044action=view)
gcc44-pr43290-2.patch
Another fix. Wonder why that insn is marked as frame related at all, for the
drap saving
--- Comment #9 from hjl dot tools at gmail dot com 2010-03-08 16:58 ---
(In reply to comment #8)
Created an attachment (id=20044)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20044action=view) [edit]
gcc44-pr43290-2.patch
Another fix. Wonder why that insn is marked as frame
--- Comment #10 from jakub at gcc dot gnu dot org 2010-03-08 17:00 ---
I'll test it, both on the trunk and 4.4-RH.
BTW, I've moved the 2) issue to PR43293.
--
jakub at gcc dot gnu dot org changed:
What|Removed |Added
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