From 02b5851258c5a0db32d1c735d1c29e5e56f45ed1 Mon Sep 17 00:00:00 2001
From: Scott McMurray <scottmcm@users.noreply.github.com>
Date: Sat, 24 Mar 2018 19:15:12 -0700
Subject: [PATCH] Polyfill LLVMBuildExactUDiv

It was added 32 days after LLVM 3.9 shipped.
---
 src/rustllvm/RustWrapper.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/rustllvm/RustWrapper.cpp b/src/rustllvm/RustWrapper.cpp
index a5644d6f9e2..e815d151aeb 100644
--- a/src/rustllvm/RustWrapper.cpp
+++ b/src/rustllvm/RustWrapper.cpp
@@ -1492,3 +1492,11 @@ LLVMRustBuildVectorReduceFMax(LLVMBuilderRef, LLVMValueRef, bool) {
   return nullptr;
 }
 #endif
+
+#if LLVM_VERSION_LT(4, 0)
+extern "C" LLVMValueRef
+LLVMBuildExactUDiv(LLVMBuilderRef B, LLVMValueRef LHS,
+                   LLVMValueRef RHS, const char *Name) {
+  return wrap(unwrap(B)->CreateExactUDiv(unwrap(LHS), unwrap(RHS), Name));
+}
+#endif