PGO Example

This example has two input files. The second step collects more data every time it executes

1. Instrumented compilation
   The program main.c calls other.c.
   
   prompt>icl -Qprof_gen -Fepgo.exe main.c other.c
   
   
2. Instrumented execution
   Each execution creates a separate data file with a .dyn suffix. Using multiple inputs may be more representative of your workload than a single input:
   
   prompt>pgo.exe input1
   prompt>pgo.exe input2
   prompt>pgo.exe input3
   
   
3. Feedback compilation
   This step merges all the .dyn files into the pgopti.dpi file and uses them as input for the compilation.
   
   prompt>icl -Qprof_use -Fepgo.exe main.c other.c