[LLVMdev] PostRAScheduling for x86

[Jakob Stoklund Olesen]

On Jan 11, 2011, at 2:56 PM, JG wrote:

> I am trying to understand why PostRAScheduling is done only for ARM. Is there any limitation which prevents this from being done for x86 ?

It's a 10% increase in overall compile time, and it does not help very much for x86.

The out-of-order execution on new x86 chips hide any benefits from late scheduling.

/jakob