Index: lib/Transforms/Instrumentation/GCOVProfiling.cpp
===================================================================
--- lib/Transforms/Instrumentation/GCOVProfiling.cpp
+++ lib/Transforms/Instrumentation/GCOVProfiling.cpp
@@ -502,6 +502,16 @@
   return false;
 }
 
+static bool shouldKeepInEntry(BasicBlock::iterator It) {
+	if (isa<AllocaInst>(*It)) return true;
+	if (isa<DbgInfoIntrinsic>(*It)) return true;
+	if (auto *II = dyn_cast<IntrinsicInst>(It)) {
+		if (II->getIntrinsicID() == llvm::Intrinsic::localescape) return true;
+	}
+
+	return false;
+}
+
 void GCOVProfiler::emitProfileNotes() {
   NamedMDNode *CU_Nodes = M->getNamedMetadata("llvm.dbg.cu");
   if (!CU_Nodes) return;
@@ -537,7 +547,7 @@
       // single successor, so split the entry block to make sure of that.
       BasicBlock &EntryBlock = F.getEntryBlock();
       BasicBlock::iterator It = EntryBlock.begin();
-      while (isa<AllocaInst>(*It) || isa<DbgInfoIntrinsic>(*It))
+      while (shouldKeepInEntry(It))
         ++It;
       EntryBlock.splitBasicBlock(It);