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* [Bug c++/42129] ICE in pointer difference with sizeof(int)>sizeof(void *)
[not found] <bug-42129-4@http.gcc.gnu.org/bugzilla/>
@ 2011-11-06 23:07 ` paolo.carlini at oracle dot com
2011-11-07 0:06 ` froydnj at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 5+ messages in thread
From: paolo.carlini at oracle dot com @ 2011-11-06 23:07 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42129
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |froydnj at gcc dot gnu.org,
| |jason at gcc dot gnu.org,
| |rth at gcc dot gnu.org
--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-11-06 23:06:27 UTC ---
I guess somebody knowledgeable about this target should have a look. Adding
Jason too, maybe the issue doesn't exist anymore, no idea.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/42129] ICE in pointer difference with sizeof(int)>sizeof(void *)
[not found] <bug-42129-4@http.gcc.gnu.org/bugzilla/>
2011-11-06 23:07 ` [Bug c++/42129] ICE in pointer difference with sizeof(int)>sizeof(void *) paolo.carlini at oracle dot com
@ 2011-11-07 0:06 ` froydnj at gcc dot gnu.org
2011-11-07 0:20 ` paolo.carlini at oracle dot com
` (2 subsequent siblings)
4 siblings, 0 replies; 5+ messages in thread
From: froydnj at gcc dot gnu.org @ 2011-11-07 0:06 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42129
Nathan Froyd <froydnj at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011-11-07
Ever Confirmed|0 |1
--- Comment #2 from Nathan Froyd <froydnj at gcc dot gnu.org> 2011-11-07 00:06:11 UTC ---
I can confirm that the problem still happens with the given options (-mh -mn
-mint32). I don't know much about this target, but the equivalent C front-end
code has:
/* Determine integer type to perform computations in. This will usually
be the same as the result type (ptrdiff_t), but may need to be a wider
type if pointers for the address space are wider than ptrdiff_t. */
if (TYPE_PRECISION (restype) < TYPE_PRECISION (TREE_TYPE (op0)))
inttype = lang_hooks.types.type_for_size
(TYPE_PRECISION (TREE_TYPE (op0)), 0);
else
inttype = restype;
and uses that as the result of the division, with a conversion to restype
(ptrdiff_type_node) as in Paolo's patch.
I think it'd be better to try to make the C and C++ front-ends as close as
possible on this; I can try a patch that combines the above and Paolo's, but
I'm not sure I'd get to it before stage 1 closes.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/42129] ICE in pointer difference with sizeof(int)>sizeof(void *)
[not found] <bug-42129-4@http.gcc.gnu.org/bugzilla/>
2011-11-06 23:07 ` [Bug c++/42129] ICE in pointer difference with sizeof(int)>sizeof(void *) paolo.carlini at oracle dot com
2011-11-07 0:06 ` froydnj at gcc dot gnu.org
@ 2011-11-07 0:20 ` paolo.carlini at oracle dot com
2012-05-24 12:17 ` paolo.carlini at oracle dot com
2013-05-24 8:59 ` paolo.carlini at oracle dot com
4 siblings, 0 replies; 5+ messages in thread
From: paolo.carlini at oracle dot com @ 2011-11-07 0:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42129
--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-11-07 00:19:45 UTC ---
Nathan, if you can take care of this issue, it would be great. Feel free to
assign it to yourself.
Note, I didn't write any code, draft patch is submitter's.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/42129] ICE in pointer difference with sizeof(int)>sizeof(void *)
[not found] <bug-42129-4@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2011-11-07 0:20 ` paolo.carlini at oracle dot com
@ 2012-05-24 12:17 ` paolo.carlini at oracle dot com
2013-05-24 8:59 ` paolo.carlini at oracle dot com
4 siblings, 0 replies; 5+ messages in thread
From: paolo.carlini at oracle dot com @ 2012-05-24 12:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42129
--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-05-24 12:04:17 UTC ---
Pinging Nathan, maybe we can do this for 4.8...
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/42129] ICE in pointer difference with sizeof(int)>sizeof(void *)
[not found] <bug-42129-4@http.gcc.gnu.org/bugzilla/>
` (3 preceding siblings ...)
2012-05-24 12:17 ` paolo.carlini at oracle dot com
@ 2013-05-24 8:59 ` paolo.carlini at oracle dot com
4 siblings, 0 replies; 5+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-05-24 8:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42129
--- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Nathan?
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2013-05-24 8:59 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-42129-4@http.gcc.gnu.org/bugzilla/>
2011-11-06 23:07 ` [Bug c++/42129] ICE in pointer difference with sizeof(int)>sizeof(void *) paolo.carlini at oracle dot com
2011-11-07 0:06 ` froydnj at gcc dot gnu.org
2011-11-07 0:20 ` paolo.carlini at oracle dot com
2012-05-24 12:17 ` paolo.carlini at oracle dot com
2013-05-24 8:59 ` paolo.carlini at oracle dot com
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