Dealing with NOP instructions

[Eric Christopher]

On Wed, 2004-06-30 at 00:31, Hsin-Hsien Wu wrote:
> Hello,
>        Does any one know about how gcc instruction scheduler deals with the
> nop operation?

However you tell it. See define_attr in gcc/config/mips/mips.md and look
for nop. Then look for the attribute in a scheduling description, e.g.
3000.md.

> What would happen if there is a pipeline stall?

Then you stall? Perhaps this question isn't asking what you really
meant?

-eric

-- 
Eric Christopher <echristo@redhat.com>