[Bug c++/28113] [4.2 Regression] vectors initialized in ctors, not at compile time, cause altivec-3.C failure

[mark at codesourcery dot com]

------- Comment #3 from mark at codesourcery dot com  2006-06-20 21:00 -------
Subject: Re:  [4.2 Regression] vectors initialized in ctors,
 not at  compile time, cause altivec-3.C failure

pinskia at gcc dot gnu dot org wrote:
> ------- Comment #2 from pinskia at gcc dot gnu dot org  2006-06-20 20:56 -------
> (In reply to comment #1)
>> Ideally, the compiler would recognize that this initialization can be
>> done statically, but I don't think that the code as written is in any
>> way guaranteed to do a static initialization.  So, yes, I think you
>> should change the test case.
> 
> Also is the initializer become a VECTOR_CST so it is easy to detect?

No, it will be an lvalue as required by the C standard.

The compiler would have to realize that an un-addressed temporary may be
used as a static initializer.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28113