auto merge of #10812 : alexcrichton/rust/lto, r=pcwalton

The first commit was approved from another pull request, but I wanted to rebase LTO on top of it.

LTO is not turned on by default at all, and it's hidden behind a `-Z` flag. I have added a few small tests for it, however.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/rustllvm/rustllvm.h b/src/rustllvm/rustllvm.h
index 94bb00aab77..ef7199a6ca8 100644
--- a/src/rustllvm/rustllvm.h
+++ b/src/rustllvm/rustllvm.h
@@ -19,6 +19,7 @@
 #include "llvm/Analysis/Verifier.h"
 #include "llvm/Analysis/Passes.h"
 #include "llvm/Analysis/Lint.h"
+#include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/Triple.h"
 #include "llvm/ADT/DenseSet.h"
 #include "llvm/Assembly/Parser.h"
@@ -47,6 +48,7 @@
 #include "llvm/Transforms/Vectorize.h"
 #include "llvm/DebugInfo.h"
 #include "llvm/DIBuilder.h"
+#include "llvm/Bitcode/ReaderWriter.h"
 #include "llvm-c/Core.h"
 #include "llvm-c/BitReader.h"
 #include "llvm-c/ExecutionEngine.h"