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* [Bug lto/47221] New: Bugus warnings issued during lto bootstrap
@ 2011-01-08 0:24 hubicka at gcc dot gnu.org
2011-01-11 11:43 ` [Bug lto/47221] " rguenth at gcc dot gnu.org
2011-01-11 13:04 ` hubicka at ucw dot cz
0 siblings, 2 replies; 3+ messages in thread
From: hubicka at gcc dot gnu.org @ 2011-01-08 0:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47221
Summary: Bugus warnings issued during lto bootstrap
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: hubicka@gcc.gnu.org
../../zlib/inflate.c:577:24: warning: 'MEM[(struct z_stream_s
*)&d_stream].state' may be used uninitialized in this function
[-Wuninitialized]
../../gcc/java/jcf-io.c:204:16: note: 'MEM[(struct z_stream_s
*)&d_stream].state' was declared here
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug lto/47221] Bugus warnings issued during lto bootstrap
2011-01-08 0:24 [Bug lto/47221] New: Bugus warnings issued during lto bootstrap hubicka at gcc dot gnu.org
@ 2011-01-11 11:43 ` rguenth at gcc dot gnu.org
2011-01-11 13:04 ` hubicka at ucw dot cz
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-01-11 11:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47221
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-01-11 11:40:08 UTC ---
I don't think the warning is bogus.
z_stream d_stream; /* decompression stream */
d_stream.zalloc = (alloc_func) 0;
d_stream.zfree = (free_func) 0;
...
/* Handle NO_HEADER using undocumented zlib feature.
This is a very common hack. */
inflateInit2 (&d_stream, -MAX_WBITS);
inflate (&d_stream, Z_NO_FLUSH);
we don't check for an error of inflateInit2 in which case state is
not initialized.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug lto/47221] Bugus warnings issued during lto bootstrap
2011-01-08 0:24 [Bug lto/47221] New: Bugus warnings issued during lto bootstrap hubicka at gcc dot gnu.org
2011-01-11 11:43 ` [Bug lto/47221] " rguenth at gcc dot gnu.org
@ 2011-01-11 13:04 ` hubicka at ucw dot cz
1 sibling, 0 replies; 3+ messages in thread
From: hubicka at ucw dot cz @ 2011-01-11 13:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47221
--- Comment #2 from Jan Hubicka <hubicka at ucw dot cz> 2011-01-11 13:03:00 UTC ---
> we don't check for an error of inflateInit2 in which case state is
> not initialized.
Probably we should fix that, but still I don't think we should leak our well
engineered
MEM_REF gimple syntax into user warnings...
Honza
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2011-01-11 13:03 UTC | newest]
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2011-01-08 0:24 [Bug lto/47221] New: Bugus warnings issued during lto bootstrap hubicka at gcc dot gnu.org
2011-01-11 11:43 ` [Bug lto/47221] " rguenth at gcc dot gnu.org
2011-01-11 13:04 ` hubicka at ucw dot cz
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