From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eli Zaretskii <eliz@is.elta.co.il>
To: John Hedges <john@drystone.co.uk>
Cc: gdb@sourceware.cygnus.com
Subject: Re: Problem with fld on i686
Date: Tue, 27 Nov 2001 03:19:00 -0000
Message-ID: <Pine.SUN.3.91.1011127131103.22199A-100000@is>
References: <E168dvs-0007FR-00@gwlinux>
X-SW-Source: 2001-11/msg00283.html
Message-ID: <20011127031900.SHu_UjTNb1lHDQpHNkKwA_o79s9Cmn-SLH-siNNASQo@z>

On Tue, 27 Nov 2001, John Hedges wrote:

> The st0 register gets -nan and so this is the result of the static_cast.

I don't get it: are you saying that the disassembly shows incorrect 
code?  If the code is correct, what does this have to do with the
source code (static_cast etc.) from which the assembly instructions
were produced?

If the code _is_ correct (I think it is), but the results aren't, then 
the fact that static_cast was used in the C++ program is irrelevant, 
right?

> The problem does not occur when run outside the debugger, nor in a 
> minimal test program.

This suggests that perhaps the FPU state is not saved/restored correctly 
across task switches.  What OS is that?  Can you try a different version 
of the same OS, or some similar but not identical OS?