Enable alias analysis and the function attributes pass.

The C API extension is already upstream, we can drop the local copy once
the bots are updated.

1 files changed, 14 insertions, 0 deletions

diff --git a/src/rustllvm/Passes.cpp b/src/rustllvm/Passes.cpp
new file mode 100644
index 00000000..cde4f9d3
--- /dev/null
+++ b/src/rustllvm/Passes.cpp
@@ -0,0 +1,14 @@
+#include "llvm/Analysis/Passes.h"
+#include "llvm/PassManager.h"
+#include "llvm-c/Core.h"
+
+using namespace llvm;
+extern "C" {
+  void LLVMAddTypeBasedAliasAnalysisPass(LLVMPassManagerRef PM) {
+    unwrap(PM)->add(createTypeBasedAliasAnalysisPass());
+  }
+
+  void LLVMAddBasicAliasAnalysisPass(LLVMPassManagerRef PM) {
+    unwrap(PM)->add(createBasicAliasAnalysisPass());
+  }
+}