RFR(S) 8010281: Remove code that never execute in opto/ifg.cpp

[Nils Eliasson]

I am sponsoring this change.

//Nils Eliasson

On 2013-03-20 09:02, Niclas Adlertz wrote:
> Hi all.
>
> Problem:
> In the C2 register allocator, the define EXACT_PRESSURE is set to decide how we estimate the block pressure. There are currently two different ways on how to estimate this. However, EXACT_PRESSURE is always set to 1. This means that the code for the second choice on how to estimate block pressure is never executed, and therefore not needed.
>
> Solution:
> Remove the define EXACT_PRESSURE and the code that is never executed; executing only the code that now executes within the ifdefs of EXACT_PRESSURE.
>
> A review would be much appreciated.
> Thank you.
>
> Regards,
> Niclas Adlertz
>
> ---------------------
>
> WEBREV: http://cr.openjdk.java.net/~neliasso/8010281/webrev00/
> BUG: https://jbs.oracle.com/bugs/browse/JDK-8010281, http://bugs.sun.com/view_bug.do?bug_id= 8010281