From d56bbdff81bb749eda17462270a54ee85c69177b Mon Sep 17 00:00:00 2001
From: Robert Widmann <devteam.codafi@gmail.com>
Date: Sat, 13 Oct 2018 00:56:46 -0400
Subject: [PATCH] Add global erasure

---
 Sources/LLVM/IRGlobal.swift | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Sources/LLVM/IRGlobal.swift b/Sources/LLVM/IRGlobal.swift
index 6f7677f6..92da5b1d 100644
--- a/Sources/LLVM/IRGlobal.swift
+++ b/Sources/LLVM/IRGlobal.swift
@@ -57,4 +57,17 @@ extension IRGlobal {
     }
     set { LLVMSetSection(asLLVM(), newValue) }
   }
+
+  /// Removes this global value from the module and deallocates it.
+  ///
+  /// - note: To ensure correct removal of the global value, you must invalidate
+  ///         any references to it - usually by performing an
+  ///         "Replace All Uses With" (RAUW) operation.
+  ///
+  /// - warning: The native Swift object wrapping this global becomes a dangling
+  ///            reference once this function has been invoked.  It is
+  ///            recommended that all references to it be dropped immediately.
+  public func eraseFromParent() {
+    LLVMDeleteGlobal(self.asLLVM())
+  }
 }