Slowdown compiling interpret.cc

[David Daney]

Andrew Haley wrote:
> On IRC you reported:
> 
>  Almost an hour of CPU time compiling interpret.cc :-(  
> (31983 root      18   0  352m 105m   16 R  4.9 86.1  58:35.62 cc1plus)  
> Thrashing nicely.  This is the file it was compiling when I came into work this morning.   
> 
> It is possible that something has broken in cc1plus.  It's quite hard
> to track down stuff like this.
> 

Andrew Pinski says that this is a known issue.  FWIW I opened this PR:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32653

David Daney
.