RFR(XS) 8032894: Remove dead code in Pressure::lower
niclas.adlertz at oracle.com
Wed Jan 29 04:09:38 PST 2014
When building the physical IFG, we step backwards in each block, and
remove things that are defined from the LIVE_OUT, (and lower the current
pressure) and add input to the LIVE_OUT (and raising the current
pressure). Each time we lower or raise the current pressure, we check if
it's bigger than the current maximum pressure, known as final_pressure.
However the final_pressure can never increase when removing definitions
(i.e. lower the current pressure) so the check for a new final_pressure
in Pressure::lower is useless.
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