[Bug libmudflap/19319] Mudflap produce many violations on simple, correct c++ program

["ppluzhnikov at charter dot net" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #16 from ppluzhnikov at charter dot net  2005-12-14 17:46 -------
Same picture using gcc-4.1-20051209 for i686-pc-linux-gnu: 
7 bogus violations on original test, 1 on reduced test.

Here are other version results:
                                               original           reduced
gcc-4.1-20051209 i686-pc-linux-gnu               7                   1
gcc-4.2-20051210 i686-pc-linux-gnu               1                   1
gcc-4.2-20051210 x86_64-unknown-linux-gnu        0                   0
gcc-4.2-20051210 x86_64-unknown-linux-gnu -m32   1                   1

Encouraged by the absence of bogus warnings on x86_64 in 64-bit mode, I tried 
4.2-20051210 on my real code. This resulted in 100s of bogus violations,
though I have not been able to produce a reduced test case yet :-(

I then tried 4.2-20051210 i686 on "pure C" real code, and got 100s more
bogus violations.

IMHO, the -fmudflap either needs to be made to work correctly on real C/C++
programs, or it should be removed altogether (bogus reports lead to a lot
of wasted time, as each new user "discovers" the feature, and then finds out
it doesn't work).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19319