[Bug middle-end/22456] [4.1/4.2/4.3 regression] missing "is used uninitialized" warning

[manu at gcc dot gnu dot org]

------- Comment #13 from manu at gcc dot gnu dot org  2007-08-15 15:02 -------
(In reply to comment #12)
> Created an attachment (id=13354)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13354&action=view) [edit]
> patch to preserve uninitialized PHI arguments in CCP
> 
> like so.  -O -Wall gives
> 
> t.i: In function 'foo':
> t.i:3: warning: 'i' may be used uninitialized in this function
> 

I don't think we want to do this, since it works fine in a lot of testcases
that will get hindered. See http://gcc.gnu.org/ml/gcc/2005-11/msg00028.html

As far as I see this is a duplicate of PR18501.


-- 

manu at gcc dot gnu dot org changed:

           What    |Removed                     |Added
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                 CC|                            |manu at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22456