Change metric for static profile guided trimming

Change metric for static profile guided trimming to 80 percentile frequency

(cherry picked from commit 7e2d8a8)

Author: tmpark

IGC/common/igc_flags.h

@@ -598,9 +598,9 @@ DECLARE_IGC_REGKEY(bool, PartitionWithFastHybridRA,     false, "Enable FastRA an
 DECLARE_IGC_REGKEY(DWORD, UnitSizeThreshold,             3000, "Compilation unit size threshold", true)
 DECLARE_IGC_REGKEY(bool, StaticProfilingForPartitioning,  0, "Enable static analysis in the partitioning algorithm.", true)
 DECLARE_IGC_REGKEY(DWORD, PrintStaticProfilingForKernelSizeReduction, 0, "Print information about static anlaysis for partitioning", true)
-DECLARE_IGC_REGKEY(DWORD, MetricForKernelSizeReduction,  4, "Set 1 to active a normal distribution, 2 a long-tail distribution, and 4 an average%", true)
+DECLARE_IGC_REGKEY(DWORD, MetricForKernelSizeReduction,  2, "Set 1 to active a normal distribution, 2 a long-tail distribution, and 4 an average%", true)
 DECLARE_IGC_REGKEY(bool,  BlockFrequencySampling,       true, "Use block frequencies to derive a distribution", true)
-DECLARE_IGC_REGKEY(DWORD, ParameterForColdFuncThreshold,        1, "C/10-STD for a normal distribution / low K% for a long-tail distribution", true)
+DECLARE_IGC_REGKEY(DWORD, ParameterForColdFuncThreshold,        80, "C/10-STD for a normal distribution / low K% for a long-tail distribution", true)
 DECLARE_IGC_REGKEY(bool, ControlUnitSize,               false, "Control compilation unit size by unit trimming", true)
 DECLARE_IGC_REGKEY(DWORD, ExpandedUnitSizeThreshold,    50000, "Trimming target of compilation unit size", true)
 DECLARE_IGC_REGKEY(DWORD, PrintControlUnitSize,             0, "Print information about unit trimming", true)