From 386c6a256fe485db3c5aff91e2e8ef0163f91429 Mon Sep 17 00:00:00 2001
From: Vedant Kumar <vsk@apple.com>
Date: Tue, 4 Dec 2018 13:26:38 -0800
Subject: [PATCH] [do not merge] Evaluate the hot/cold splitting pass

(cherry picked from commit a5e427732d08c35bc2a67d10f8d5140475a02e01)
---
 lib/IRGen/IRGen.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/IRGen/IRGen.cpp b/lib/IRGen/IRGen.cpp
index 589edae6f3c18..01d04b84c5e24 100644
--- a/lib/IRGen/IRGen.cpp
+++ b/lib/IRGen/IRGen.cpp
@@ -283,6 +283,10 @@ void swift::performLLVMOptimizations(IRGenOptions &Opts, llvm::Module *Module,
     }));
   }
 
+  // [do not merge] Evaluate the hot/cold splitting pass
+  if (Opts.shouldOptimize() && !Opts.DisableLLVMOptzns)
+    ModulePasses.add(createHotColdSplittingPass());
+
   if (Opts.Verify)
     ModulePasses.add(createVerifierPass());