Index: lib/Transforms/IPO/SampleProfile.cpp
===================================================================
--- lib/Transforms/IPO/SampleProfile.cpp
+++ lib/Transforms/IPO/SampleProfile.cpp
@@ -1275,6 +1275,7 @@
       clearFunctionData();
       retval |= runOnFunction(F);
     }
+  M.setProfileSummary(Reader->getSummary().getMD(M.getContext()));
   return retval;
 }
 
Index: test/Transforms/SampleProfile/Inputs/summary.prof
===================================================================
--- /dev/null
+++ test/Transforms/SampleProfile/Inputs/summary.prof
@@ -0,0 +1,4 @@
+bar:100:3
+ 1: 100
+foo:200:1
+ 1: 200
Index: test/Transforms/SampleProfile/summary.ll
===================================================================
--- /dev/null
+++ test/Transforms/SampleProfile/summary.ll
@@ -0,0 +1,14 @@
+; Test that we annotate entire program's summary to IR.
+; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/summary.prof -S | FileCheck %s
+
+define i32 @bar() #0 !dbg !1 {
+entry:
+  ret i32 1, !dbg !2
+}
+
+; CHECK-DAG: {{![0-9]+}} = !{i32 1, !"ProfileSummary", {{![0-9]+}}}
+; CHECK-DAG: {{![0-9]+}} = !{!"NumFunctions", i64 2}
+; CHECK-DAG: {{![0-9]+}} = !{!"MaxFunctionCount", i64 3}
+
+!1 = distinct !DISubprogram(name: "bar")
+!2 = !DILocation(line: 2, scope: !2)