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* [Bug tree-optimization/15880] New: No 'may be used uninitialize' warning for arrays.
@ 2004-06-08 19:33 bangerth at dealii dot org
2004-06-08 19:39 ` [Bug tree-optimization/15880] " pinskia at gcc dot gnu dot org
0 siblings, 1 reply; 2+ messages in thread
From: bangerth at dealii dot org @ 2004-06-08 19:33 UTC (permalink / raw)
To: gcc-bugs
While we get a 'may be used uninitialized' warning for this case:
-------------
struct X { int a; };
int f() {
X x;
return x.a;
}
-------------
g/x> /home/bangerth/bin/gcc-3.5-pre/bin/c++ -c x.cc -O2 -Wuninitialized
x.cc: In function `int f()':
x.cc:5: warning: 'x$a' is used uninitialized in this function
we do not for this case:
---------------
int f() {
int x[3];
return x[0];
}
---------------
g/x> /home/bangerth/bin/gcc-3.5-pre/bin/c++ -c x.cc -O2 -Wuninitialized
Does this have a reason or is it a bug? I tend to think it is the latter.
W.
--
Summary: No 'may be used uninitialize' warning for arrays.
Product: gcc
Version: 3.5.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bangerth at dealii dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15880
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug tree-optimization/15880] No 'may be used uninitialize' warning for arrays.
2004-06-08 19:33 [Bug tree-optimization/15880] New: No 'may be used uninitialize' warning for arrays bangerth at dealii dot org
@ 2004-06-08 19:39 ` pinskia at gcc dot gnu dot org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-06-08 19:39 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-06-08 19:39 -------
Yes this is because array are not Scalared replaced yet.
And this is a dup of bug 10138.
*** This bug has been marked as a duplicate of 10138 ***
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15880
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2004-06-08 19:33 [Bug tree-optimization/15880] New: No 'may be used uninitialize' warning for arrays bangerth at dealii dot org
2004-06-08 19:39 ` [Bug tree-optimization/15880] " pinskia at gcc dot gnu dot org
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