--- OpenShadingLanguage-Release-1.8.15/src/liboslexec/llvm_util.cpp.orig	2018-12-06 11:58:57.216034300 +0300
+++ OpenShadingLanguage-Release-1.8.15/src/liboslexec/llvm_util.cpp	2018-12-06 11:59:00.476038800 +0300
@@ -99,6 +99,11 @@
 #  include <llvm/Transforms/Scalar/GVN.h>
 #endif
 
+#if OSL_LLVM_VERSION >= 70
+#include <llvm/Transforms/Utils.h>
+#include <llvm/Transforms/InstCombine/InstCombine.h>
+#endif
+
 OSL_NAMESPACE_ENTER
 
 namespace pvt {
@@ -1720,7 +1725,11 @@
     std::string local_error;
     llvm::raw_fd_ostream out (filename, err ? *err : local_error);
 #endif
+#if OSL_LLVM_VERSION >= 70
+    llvm::WriteBitcodeToFile (*module(), out);
+#else
     llvm::WriteBitcodeToFile (module(), out);
+#endif
 
 #if OSL_LLVM_VERSION >= 36
     if (err && local_error)