From b471cdb56f8d46b4ebf3991957ba08eced4a9627 Mon Sep 17 00:00:00 2001
From: Dmitry Babokin <babokin@gmail.com>
Date: Tue, 12 Jan 2016 13:54:12 +0300
Subject: [PATCH] Track changes in createFunctionAttrsPass().

---
 opt.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/opt.cpp b/opt.cpp
index 41e655e1..c9cc2ebb 100644
--- a/opt.cpp
+++ b/opt.cpp
@@ -672,7 +672,12 @@ Optimize(llvm::Module *module, int optLevel) {
         optPM.add(llvm::createInstructionCombiningPass());
         optPM.add(llvm::createCFGSimplificationPass());
         optPM.add(llvm::createPruneEHPass());
+#if ISPC_LLVM_VERSION >= ISPC_LLVM_3_8 // 3.8+
+        optPM.add(llvm::createPostOrderFunctionAttrsPass());
+        optPM.add(llvm::createReversePostOrderFunctionAttrsPass());
+#else // 3.7 and earlier
         optPM.add(llvm::createFunctionAttrsPass());
+#endif
         optPM.add(llvm::createFunctionInliningPass());
         optPM.add(llvm::createConstantPropagationPass());
         optPM.add(llvm::createDeadInstEliminationPass());