From db89e312d968c258aba3c79c1c398f5fb19267a3 Mon Sep 17 00:00:00 2001
From: ed <ed@FreeBSD.org>
Date: Sun, 14 Jun 2009 09:23:33 +0000
Subject: Import LLVM r73340.

---
 lib/ExecutionEngine/JIT/JIT.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'lib/ExecutionEngine/JIT/JIT.cpp')

diff --git a/lib/ExecutionEngine/JIT/JIT.cpp b/lib/ExecutionEngine/JIT/JIT.cpp
index f8ae884..43995cb 100644
--- a/lib/ExecutionEngine/JIT/JIT.cpp
+++ b/lib/ExecutionEngine/JIT/JIT.cpp
@@ -563,6 +563,11 @@ void *JIT::getPointerToFunction(Function *F) {
     return Addr;   // Check if function already code gen'd
 
   MutexGuard locked(lock);
+  
+  // Now that this thread owns the lock, check if another thread has already
+  // code gen'd the function.
+  if (void *Addr = getPointerToGlobalIfAvailable(F))
+    return Addr;  
 
   // Make sure we read in the function if it exists in this Module.
   if (F->hasNotBeenReadFromBitcode()) {
-- 
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