[LLVMdev] RFC: Exception Handling Rewrite

[Garrison Venn]

Hi Eli

So I found this in Attributes.h:

const Attributes UWTable     = 1<<30;     ///< Function must be in a unwind      
                                          ///table                               

What does this mean? In particular what does it mean not to add this as
a function attribute to a function? I'm obviously going down the wrong road in
my interpretation, as I currently have functions that unwind from, through, and to 
without using this attribute. Does this have meaning for certain platforms and
thus must always be used "just in case"?

Thanks in advance

Garrison

On Jul 23, 2011, at 12:47, Eli Friedman wrote:

> On Sat, Jul 23, 2011 at 2:36 AM, Garrison Venn <gvenn.cfe.dev at gmail.com> wrote:
>> Hi Bill,
>> 
>> Thanks for working on this.
>> 
>> Is there a reference for the function attribute uwtable, or is it to be defined as
>> part of this effort?
> 
> It already exists; there's some limited documentation in the LLVM
> source, but Rafael apparently forgot to add it to LangRef...
> 
> -Eli