[Bug middle-end/31707] Spurious "'<variable>' may be used uninitialized in this function" warnings when using __builtin_setjmp and loops and extern function call
manu at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Wed Aug 5 16:02:00 GMT 2009
------- Comment #10 from manu at gcc dot gnu dot org 2009-08-05 16:01 -------
I think we should close this as WONTFIX.
* In GCC 4.5 we only warn at -O1 with a "may be", no warning with -O{0,2,3,s}.
So it seems just a matter of optimizers exposing/hiding things.
* The testcase is a bit obscure, and too large for my taste.
* Two developers have said that this is not realistically fixable.
* The impact on users seems to be limited.
--
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=31707
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