--- Additional Comments From ebotcazou at gcc dot gnu dot org 2005-05-10
14:24 ---
> OK, I see your point. Sorry for inconvenience. I see that the status
> in bugzilla has been updated accordingly. Is there anything else I
> should do to close this?
No, the status has already been se
else I
should do to close this?
Drew
-Original Message-
From: ebotcazou at gcc dot gnu dot org [mailto:[EMAIL PROTECTED]
Sent: Sunday, May 08, 2005 6:59 AM
To: Johnson, Drew
Subject: [Bug target/21389] optimized code seg faults due to double load
on sparcV9
--- Additional Comments
--- Additional Comments From ebotcazou at gcc dot gnu dot org 2005-05-08
10:58 ---
> Then what is the point of the -munaligned-doubles flag? Is this simply
> ignored? I understand your point about malloc, but what if we have
> casts to buffers that are not mod8-aligned? Isn't that wha
ginal Message-
From: pinskia at gcc dot gnu dot org [mailto:[EMAIL PROTECTED]
Sent: Friday, May 06, 2005 3:08 PM
To: Johnson, Drew
Subject: [Bug target/21389] optimized code seg faults due to double load
on sparcV9
--- Additional Comments From pinskia at gcc dot gnu dot org
2005-05-06
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-05-06
19:07 ---
(In reply to comment #4)
> Subject: RE: optimized code seg faults due to double load on sparcV9
>
> I don't think so. Malloc does not guarantee anything but mod-4
> alignment. You have to use memalign to
mized code seg faults due to double load
on sparcV9
--- Additional Comments From pinskia at gcc dot gnu dot org
2005-05-06 18:54 ---
I think you violating alignment rules in C:
x = tptr[1].f3;
p = (char *)tptr;
p += 4;
tptr = (test1 *)p;
--
http://gcc.gn
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-05-06
18:54 ---
I think you violating alignment rules in C:
x = tptr[1].f3;
p = (char *)tptr;
p += 4;
tptr = (test1 *)p;
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21389
--- Additional Comments From drew dot johnson at andrew dot com 2005-05-06
18:53 ---
(In reply to comment #0)
> When -O3 or higher is used, the optimizer utilizes the lddf sparc
instruction
> to load doubles into registers. This can generate a bus-error/seg-fault at
> runtime if the
--
What|Removed |Added
Attachment #8820|compile with -O3 or higher, |compile with -O1 or higher,
description|and execution generates seg-|and execution generates seg-
--
What|Removed |Added
Component|c |target
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21389
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