--- Additional Comments From pinskia at gcc dot gnu dot org 2005-03-10
17:15 ---
(In reply to comment #9)
> Eh, I was looking at the very same code... Can't we deal with EMPTY_CLASS_EXPR
> similarly to USING_STMT? ;) ;)
I think we should produce an empty CONSTRUCTOR (which I am testing
--- Additional Comments From pcarlini at suse dot de 2005-03-10 17:13
---
Eh, I was looking at the very same code... Can't we deal with EMPTY_CLASS_EXPR
similarly to USING_STMT? ;) ;)
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20408
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-03-10
17:07 ---
>From cp-gimplifier.c:
case EMPTY_CLASS_EXPR:
/* We create an INTEGER_CST with RECORD_TYPE and value zero. */
*expr_p = build_int_cst (TREE_TYPE (*expr_p), 0);
This is wrong.
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http://
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-03-10
17:06 ---
>From call.c:
/* Don't pass empty class objects by value. This is useful
for tags in STL, which are used to control overload resolution.
We don't need to handle other cases of copying empty clas
--- Additional Comments From pcarlini at suse dot de 2005-03-10 16:19
---
Andrew, is Daniel Berlin struct aliasing work likely to help, here?
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What|Removed |Added
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-03-10
16:21 ---
(In reply to comment #5)
> Andrew, is Daniel Berlin struct aliasing work likely to help, here?
No, fixing the front-end so it no longer produces a = 0 will most likely fix
this as that is just wrong.
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--- Additional Comments From pinskia at gcc dot gnu dot org 2005-03-10
16:10 ---
Werid on PPC, we get the most optimal code of
__Z8call_foov:
LFB2:
b __Z3foo1X
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What|Removed |Added
--- Additional Comments From chris at bubblescope dot net 2005-03-10 16:05
---
When you say "has no effect in final code", are you talking about the problem
you noticed, or the problem as a whole?
I find for each extra X I add to the type of foo I get a line much like:
movb %al, 28(%es
--- Additional Comments From chris at bubblescope dot net 2005-03-10 16:00
---
ignore my random changing of severity..
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What|Removed |Added
Severity|minor
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What|Removed |Added
Severity|normal |minor
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20408
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