unwind-dw2-fde.c failed on my port

[Daniel Berlin]

On Wed, 2005-09-21 at 16:40 +0800, Eric Fisher wrote:
> Hi,
> 
> There is a little progress. I find it's concerned with gcc optimize.
> When I change the option -O2 to -O0, it passes the make. Of
> course, I'd like to say there are something wrong in my backend.
> But, can somebody give me any clue?
> 

Unfortunately not.  This is the hard part of debugging.
You are going to have to stare at dumps and disassembly to figure out
what is going on.

I'd tell you to run the gcc testsuite and start hunting down failures,
but i don't believe any of the execute tests will work without libgcc.a
working.