Index: lib/Analysis/InlineCost.cpp
===================================================================
--- lib/Analysis/InlineCost.cpp
+++ lib/Analysis/InlineCost.cpp
@@ -675,7 +675,7 @@
   auto CallSiteFreq = CallerBFI->getBlockFreq(CallSiteBB);
   auto CallerEntryFreq =
       CallerBFI->getBlockFreq(&(CS.getCaller()->getEntryBlock()));
-  return CallSiteFreq < CallerEntryFreq * ColdProb;
+  return CallSiteFreq <= CallerEntryFreq * ColdProb;
 }
 
 Optional<int>
Index: test/Transforms/Inline/inline-cold-callsite2.ll
===================================================================
--- /dev/null
+++ test/Transforms/Inline/inline-cold-callsite2.ll
@@ -0,0 +1,35 @@
+; RUN: opt < %s -passes='require<profile-summary>,cgscc(inline)' -inline-cold-callsite-threshold=0 -S | FileCheck %s
+define void @bar(i32 %a) local_unnamed_addr {
+entry:
+  tail call void @baz(i32 %a)
+  tail call void @baz(i32 %a)
+  tail call void @baz(i32 %a)
+  ret void
+}
+
+declare void @baz(i32) local_unnamed_addr
+
+define void @foo(i32 %a) local_unnamed_addr {
+entry:
+  %cmp = icmp slt i32 %a, 10
+  br i1 %cmp, label %if.then, label %if.end, !prof !2
+
+if.then:                                          ; preds = %entry
+  call void @bar(i32 %a)
+  br label %if.end
+
+if.end:                                           ; preds = %if.then, %entry
+  ret void
+}
+
+; CHECK-LABEL: @foobar
+define void @foobar(i32 %a) local_unnamed_addr {
+entry:
+  %mul = shl nsw i32 %a, 1
+; CHECK-NOT: call void @foo
+; CHECK: call void @bar
+  call void @foo(i32 %mul)
+  ret void
+}
+
+!2 = !{!"branch_weights", i32 1, i32 2000}