various fixes and addition of static promotion code for tree profiling branch.

[Kenneth Zadeck]

Geoffrey Keating wrote:

>Kenneth Zadeck <zadeck@naturalbridge.com> writes:
>
>  
>
>>This has passes all of the testsuites on i686-linux.
>>    
>>
>
>What is it for?
>  
>

The main purpose of this code is to promote static variables into 
registers in those places where it is deamed safe.  This allows those 
values to be subjected to the various optimizations that up until this 
point could only be applied to local variables.

kenny