[PGO/tests] Update comment to reflect reality.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@301344 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/pgo-sample-thinlto-summary.c b/test/CodeGen/pgo-sample-thinlto-summary.c
index fe742e0..7782aeb 100644
--- a/test/CodeGen/pgo-sample-thinlto-summary.c
+++ b/test/CodeGen/pgo-sample-thinlto-summary.c
@@ -32,7 +32,7 @@
     baz(i);
 }
 
-// Checks that icp is invoked.
+// Check that icp is not invoked (both -O2 and ThinLTO).
 // O2-LABEL: define void @icp
 // THINLTO-LABEL: define void @icp
 // O2-NOT: if.true.direct_targ