From 7e522b2f0ebddd60fb3df467cb755c2de0f37f4d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Steinbrink?= <bsteinbr@gmail.com>
Date: Fri, 8 Dec 2017 11:23:23 +0100
Subject: [PATCH] Simplify LLVMRustModuleCost()

---
 src/rustllvm/RustWrapper.cpp | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/src/rustllvm/RustWrapper.cpp b/src/rustllvm/RustWrapper.cpp
index d4480002d4000..96fb05ee06e37 100644
--- a/src/rustllvm/RustWrapper.cpp
+++ b/src/rustllvm/RustWrapper.cpp
@@ -1428,11 +1428,6 @@ LLVMRustModuleBufferLen(const LLVMRustModuleBuffer *Buffer) {
 
 extern "C" uint64_t
 LLVMRustModuleCost(LLVMModuleRef M) {
-  Module &Mod = *unwrap(M);
-  uint64_t cost = 0;
-  for (auto &F : Mod.functions()) {
-    (void)F;
-    cost += 1;
-  }
-  return cost;
+  auto f = unwrap(M)->functions();
+  return std::distance(std::begin(f), std::end(f));
 }