Move insn out of the way

[Paulo J. Matos]

On 10/08/11 12:42, Richard Guenther wrote:
>
> Oh, and I wonder if/why IRA can/does not rematerialize the constant
> instead of spilling it.  Might be a cost issue that it doesn't delay
> allocating a reg for 1 as that is cheap to reload (is it?).
>

I would indeed expect IRA to move the constant assignment. However it 
doesn't. The cost of a constant as per RTX_COSTS is 1 since it takes 
exactly one instruction to actually do that (optimizing for size).

-- 
PMatos