regcprop and REG_DEAD

[Paul Koning]

On May 13, 2011, at 8:56 PM, Andrew Pinski wrote:

> On Fri, May 13, 2011 at 5:51 PM, Paul Koning <paul_koning@dell.com> wrote:
>> I was using 4.5.1 which has the bug.  I thought later ones have it too, but it looks like I misread the assembly output.  (The fix makes a subtle change: beq becomes beql.)
> 
> A good question is why does XLR have branch linkely enabled anyways?
> It has been deprecated in the ISA and causes performance problems on
> most modern MIPS64 processors.

Good question, and since our other target is SB1 which definitely deprecates that, it would make sense to say -mno-branch-likely.  I'll ask Netlogic what they recommend.

	paul