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Bug#: 24639
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Status: NEW
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Assigned To: Not yet assigned to anyone <unassigned@gcc.gnu.org>
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Reporter: Andrew Pinski <pinskia@gcc.gnu.org>
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Attachment Description Type Created Size Actions
PATCH Proposed patch and new testcases patch 2005-11-09 00:02 2.96 KB Edit | Diff
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Bug 24639 depends on: 179 2972 5035 7258 10138 10538 12792 13127 13615 13863 14204 16036 16865 17506 17518 18016 18232 18501 19371 19430 19808 19833 20644 20968 21005 21124 21513 21548 21733 21750 22197 22207 22297 22456 23497 23563 23648 24004 24612 24931 27120 27289 27589 29458 30680 31279 31707 31841 32395 32759 33802 34772 34793 35609 35903 36168 36296 36550 36814 36823 38908 38945 39133 39502 39799 39936 40059 40146 40156 40206 40469 40635 40695 40943 41817 41952 41953 42000 42290 Show dependency tree
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Description:   Last confirmed: 2007-07-09 08:47 Opened: 2005-11-02 18:53 
To get a better feeling for the issues which have been reported, this meta-bug
should get the better feeling for them.

------- Comment #1 From Andrew Pinski 2005-11-02 19:00 ------- 
There are at least 19 bugs related to the uninit warnings.

------- Comment #2 From Andrew Pinski 2005-11-02 19:01 ------- 
Adding Jeff Law and Diego so they know what the bug numbers are.

------- Comment #3 From Andrew Pinski 2005-11-02 19:17 ------- 
Some more, this time closed ones.  There are many more.

------- Comment #4 From Jeffrey A. Law 2005-11-09 00:02 ------- 
Created an attachment (id=10181) [edit]
Proposed patch and new testcases

I'm not comfortable self-approving this patch; the option processing code is
totally new to me and I have no idea if I got it right.  And while I believe
the sense of -Wuninitialized is correct (no change in current behavior), I
don't think we have reached a consensus on that issue.

I will note that after reviewing all the PRs, by far the most common complaint
is false positives,  #2 is missing warnings, particularly for objects which
have had their address taken, #3 is missing warnings in unreachable/dead code
(which we can now detect with -Wuninitialized=2 using this patch).

------- Comment #5 From Manuel López-Ibáñez 2007-03-06 15:09 ------- 
Another one.

------- Comment #6 From Manuel López-Ibáñez 2007-10-12 09:44 ------- 
I am collecting all info about Wuninitialized issues and proposals to solve
them here:

http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings

Feel free to comment and contribute. The Summer of Code passed (unfortunately,
I didn't have enough time to succeed) but the project goes on.

------- Comment #7 From Manuel López-Ibáñez 2008-08-18 16:42 ------- 
Alias Wuninitialized
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