From ba26efb60c9e11ab058a1c31b9816147c55ab417 Mon Sep 17 00:00:00 2001
From: Simonas Kazlauskas <git@kazlauskas.me>
Date: Thu, 4 Feb 2016 19:40:28 +0200
Subject: Implement filling drop in MIR

Hopefully the author caught all the cases. For the mir_dynamic_drops_3 test case the ratio of
memsets to other instructions is 12%. On the other hand we actually do not double drop for at least
the test cases provided anymore in MIR.
---
 src/rustllvm/RustWrapper.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/rustllvm/RustWrapper.cpp')

diff --git a/src/rustllvm/RustWrapper.cpp b/src/rustllvm/RustWrapper.cpp
index 4ebe49512d7..91cf4aa1da9 100644
--- a/src/rustllvm/RustWrapper.cpp
+++ b/src/rustllvm/RustWrapper.cpp
@@ -1167,3 +1167,8 @@ LLVMRustBuildInvoke(LLVMBuilderRef B,
     return LLVMBuildInvoke(B, Fn, Args, NumArgs, Then, Catch, Name);
 }
 #endif
+
+extern "C" void LLVMRustPositionBuilderAtStart(LLVMBuilderRef B, LLVMBasicBlockRef BB) {
+    auto point = unwrap(BB)->getFirstInsertionPt();
+    unwrap(B)->SetInsertPoint(unwrap(BB), point);
+}
-- 
cgit 1.4.1-3-g733a5