diff --git a/llvm/lib/Transforms/IPO/SampleProfile.cpp b/llvm/lib/Transforms/IPO/SampleProfile.cpp
--- a/llvm/lib/Transforms/IPO/SampleProfile.cpp
+++ b/llvm/lib/Transforms/IPO/SampleProfile.cpp
@@ -820,9 +820,8 @@
   }
 
   StringRef CalleeName;
-  if (const CallInst *CI = dyn_cast<CallInst>(&Inst))
-    if (Function *Callee = CI->getCalledFunction())
-      CalleeName = Callee->getName();
+  if (Function *Callee = Inst.getCalledFunction())
+    CalleeName = Callee->getName();
 
   const FunctionSamples *FS = findFunctionSamples(Inst);
   if (FS == nullptr)
diff --git a/llvm/test/Transforms/SampleProfile/nodebug-error.ll b/llvm/test/Transforms/SampleProfile/nodebug-error.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Transforms/SampleProfile/nodebug-error.ll
@@ -0,0 +1,60 @@
+; Test the profile _Z3sumii won't be mistakenly annotated to foo
+; when '-sample-profile-merge-inlinee' is enabled. When the mistake
+; happens, there will be a "No debug information found" warning message.
+; RUN: opt < %s -passes=sample-profile \
+; RUN:   -sample-profile-file=%S/Inputs/inline-mergeprof.prof \
+; RUN:   -sample-profile-merge-inlinee=true -S 2>&1| FileCheck %s
+
+@.str = private unnamed_addr constant [11 x i8] c"sum is %d\0A\00", align 1
+declare void @__cxa_call_unexpected(i8*)
+declare i32 @__gxx_personality_v0(...)
+declare i32 @_Z3subii(i32 %x, i32 %y)
+
+define i32 @main() "use-sample-profile" nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) !dbg !6 {
+entry:
+  %retval = alloca i32, align 4
+  %s = alloca i32, align 4
+  %i = alloca i32, align 4
+  %tmp = load i32, i32* %i, align 4, !dbg !8
+  %tmp1 = load i32, i32* %s, align 4, !dbg !8
+  %call = invoke i32 @foo(i32 %tmp, i32 %tmp1)
+          to label %cont unwind label %lpad, !dbg !8
+; CHECK-NOT: warning: No debug information found in function foo
+; CHECK: invoke i32 @foo
+cont:
+  store i32 %call, i32* %s, align 4, !dbg !8
+  ret i32 0, !dbg !11
+lpad:
+  %lptmp0 = landingpad { i8*, i32 }
+          filter [0 x i8*] zeroinitializer
+  %lptmp1 = extractvalue { i8*, i32 } %lptmp0, 0
+  tail call void @__cxa_call_unexpected(i8* %lptmp1) noreturn nounwind
+  unreachable
+}
+
+define i32 @foo(i32 %x, i32 %y) #0 {
+entry:
+  %add = add nsw i32 %x, %y
+  ret i32 %add
+}
+
+attributes #0 = { "use-sample-profile" }
+
+declare i32 @printf(i8*, ...)
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4}
+!llvm.ident = !{!5}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.5 ", isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
+!1 = !DIFile(filename: "calls.cc", directory: ".")
+!2 = !{}
+!3 = !{i32 2, !"Dwarf Version", i32 4}
+!4 = !{i32 1, !"Debug Info Version", i32 3}
+!5 = !{!"clang version 3.5 "}
+!6 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 7, type: !7, scopeLine: 7, virtualIndex: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
+!7 = !DISubroutineType(types: !2)
+!8 = !DILocation(line: 10, scope: !9)
+!9 = !DILexicalBlockFile(scope: !10, file: !1, discriminator: 2)
+!10 = distinct !DILexicalBlock(scope: !6, file: !1, line: 10)
+!11 = !DILocation(line: 12, scope: !6)