From e2510cdfe85ee79f97ee49913a16f7ffb4fa40ea Mon Sep 17 00:00:00 2001
From: "Duncan P. N. Exon Smith" <dexonsmith@apple.com>
Date: Fri, 24 Apr 2015 21:51:02 +0000
Subject: IR: Add Function metadata attachments

Add IR support for `Metadata` attachments.  Assembly and bitcode support
will follow shortly, but for now we just have unit tests.  This is part
of PR23340.

llvm-svn: 235783
---
 llvm/lib/IR/Function.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'llvm/lib/IR/Function.cpp')

diff --git a/llvm/lib/IR/Function.cpp b/llvm/lib/IR/Function.cpp
index 227dfef9e98..ced989ab11d 100644
--- a/llvm/lib/IR/Function.cpp
+++ b/llvm/lib/IR/Function.cpp
@@ -324,6 +324,9 @@ void Function::dropAllReferences() {
   // Prefix and prologue data are stored in a side table.
   setPrefixData(nullptr);
   setPrologueData(nullptr);
+
+  // Metadata is stored in a side-table.
+  clearMetadata();
 }
 
 void Function::addAttribute(unsigned i, Attribute::AttrKind attr) {
-- 
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