[Fwd: exception-handling bugs]

[Boris Fomitchev <fbp at stlport dot org>]

Hi there,
Apparently Dave had problems sending this from his address...

An addition from Dave to the message forwarded :

"The January 3rd gcc 2.96 snapshot crashes with an internal compiler
error when I try to build the library. You might want to add this to my
gcc bug report if you post it for me."

Best regards,
-Boris.

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• To: gcc-bugs at gcc dot gnu dot org
• Subject: exception-handling bugs
• From: David Abrahams <abrahams at mediaone dot net>
• Date: Sun, 23 Jan 2000 10:21:33 -0500
• CC: khan at xraylith dot wisc dot edu

Hi,

I am a maintainer contributor to the STLport (www.stlport.org), and in
particular I maintain its exception-handling test suite. This suite is
designed to test the C++ standard library components (supplied by the
STLport, not the standard gcc library) for correct behavior with respect
to exceptions, but it has also been very reliable at uncovering
compiler/code-generation bugs. I have been running this test with
several different builds of gcc 2.95.2 recently. The following builds
(at least) seem to have problems:

Very serious problems, crashes almost immediately under any
configuration:
	powerpc-unknown-linux (powerpc linux hosted and targeted).**
	mumit khan's port of gcc to Win32 (x86 WinNT hosted and targeted)

Aborts under one particular configuration in a manner seemingly
consistent with exceptions being thrown during unwinding or violated
exception-specification:
	x86 linux hosted and targeted

By the way, just to prove that the test suite itself isn't at fault, it
works under any configuration and optimization level with the following:
	sparc solaris hosted and targeted
	VC++6
	Metrowerks CodeWarrior targeting 68K

The test suite is not small, so I doubt that I can post it in a single
mail message. If anyone is interested in trying it, please contact me
directly, as I don't always watch this list carefully.

Thanks,
Dave

** trying to compile with optimizations also reveals a problem in one
particular source file, wherein the assembler complains of an "invalid
relocation mode"

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