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

Niclas Adlertz niclas.adlertz at oracle.com
Wed Mar 20 01:02:40 PDT 2013

Hi all.

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. 

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.

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

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