Added configurations and files for profile guided optimization (PGO).
diff --git a/PCbuild9/pginstrument.vsprops b/PCbuild9/pginstrument.vsprops
new file mode 100644
index 0000000..e121114
--- /dev/null
+++ b/PCbuild9/pginstrument.vsprops
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioPropertySheet
+ ProjectType="Visual C++"
+ Version="8.00"
+ Name="pginstrument"
+ OutputDirectory="$(SolutionDir)$(PlatformName)-pgo\"
+ IntermediateDirectory="$(SolutionDir)$(PlatformName)-temp-pgo\$(ProjectName)\"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ WholeProgramOptimization="true"
+ />
+ <Tool
+ Name="VCLinkerTool"
+ LinkTimeCodeGeneration="2"
+ />
+</VisualStudioPropertySheet>