[profile] Allow max vals per site to be controllable at runtime

llvm-svn: 269993
diff --git a/compiler-rt/lib/profile/InstrProfilingFile.c b/compiler-rt/lib/profile/InstrProfilingFile.c
index 1e75401..f18a485 100644
--- a/compiler-rt/lib/profile/InstrProfilingFile.c
+++ b/compiler-rt/lib/profile/InstrProfilingFile.c
@@ -254,6 +254,8 @@
   if (HasBeenRegistered)
     return 0;
 
+  lprofSetupValueProfiler();
+
   HasBeenRegistered = 1;
   return atexit(writeFileWithoutReturn);
 }