Re: Optimzie brl to br for ia64

["H. J. Lu" <hjl at lucon dot org>]

On Wed, Mar 12, 2003 at 05:09:26PM -0800, Richard Henderson wrote:
> On Wed, Mar 12, 2003 at 03:56:24PM -0800, H. J. Lu wrote:
> > On ia64, brl, which may be introduced by relaxation, can be optimized
> > to br. Here is a testcase:
> 
> Ok, sure, but why bother?  The cases in which one object file
> is that large, and yet the target is actually in range of a 
> br is approximately nil.  Plus, brl and br are the same speed
> on Itanium2, so I don't see what the effort would buy you.
> 

I was told br had better branch predication accuracy on Itanium 2.


H.J.