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Bug#221565: marked as done (g++-3.3: bad code generation)



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and subject line Bug#221565: g++-3.3: bad code generation
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>From zooko@zooko.com Tue Nov 18 20:45:43 2003
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Subject: g++-3.3: bad code generation
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Package: g++-3.3
Version: 1:3.3.2-4
Severity: normal


Hi there!  Thank you so much for the Debian toolchain!

I use Crypto++ v5.0 [1], and I've noticed that the "generate a random
RSA key pair" function either seg faults or goes into an infinite loop.
I've learned that turning optimization off with -O0 or else downgrading
to g++ 3.2.3 solves this problem.

Talking to Graydon Hoare, he says that RedHat's version of g++ 3.3.2, 
"g++ (GCC) 3.3.2 20031022 (Red Hat Linux 3.3.2-1)", doesn't exhibit this bug.

I'd be happy to provide a test case if you want.  You just call the
following method from Crypto++ 5.0:

void Initialize(RandomNumberGenerator &rng, unsigned int modulusBits, const Integer &e = 17);

Regards,

Zooko

[1] http://cryptopp.com/


-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux pion 2.4.22 #1 Wed Oct 22 11:56:42 EDT 2003 i686
Locale: LANG=C, LC_CTYPE=C

Versions of packages g++-3.3 depends on:
ii  gcc-3.3                     1:3.3.2-4    The GNU C compiler
ii  gcc-3.3-base                1:3.3.2-4    The GNU Compiler Collection (base 
hi  libc6                       2.3.2.ds1-10 GNU C Library: Shared libraries an
ii  libstdc++5-3.3-dev          1:3.3.2-4    The GNU Standard C++ Library v3 (d

-- no debconf information


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Received: (at 221565-done) by bugs.debian.org; 21 May 2005 19:32:17 +0000
>From falk@debian.org Sat May 21 12:32:17 2005
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To: 221565-done@bugs.debian.org
Subject: Bug#221565: g++-3.3: bad code generation
From: Falk Hueffner <falk@debian.org>
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Hi,

according to the previous comment, this is an aliasing issue, and not
a bug in g++, so closing.

-- 
	Falk



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