From e6f3287cbbd0ebdd64d5f98e480d7d571b97fbb9 Mon Sep 17 00:00:00 2001
From: Nick Lewycky <nicholas@mxc.ca>
Date: Thu, 15 Jul 2010 06:48:56 +0000
Subject: [PATCH] Disable aliases on all platforms.

llvm-svn: 108417
---
 llvm/lib/Transforms/IPO/MergeFunctions.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/llvm/lib/Transforms/IPO/MergeFunctions.cpp b/llvm/lib/Transforms/IPO/MergeFunctions.cpp
index 55d5e2ac4ab8..1813a599cae7 100644
--- a/llvm/lib/Transforms/IPO/MergeFunctions.cpp
+++ b/llvm/lib/Transforms/IPO/MergeFunctions.cpp
@@ -603,6 +603,10 @@ static void ThunkGToF(Function *F, Function *G) {
 }
 
 static void AliasGToF(Function *F, Function *G) {
+  // Darwin will trigger llvm_unreachable if asked to codegen an alias
+  return ThunkGToF(F, G);
+
+#if 0
   if (!G->hasExternalLinkage() && !G->hasLocalLinkage() && !G->hasWeakLinkage())
     return ThunkGToF(F, G);
 
@@ -614,6 +618,7 @@ static void AliasGToF(Function *F, Function *G) {
   GA->setVisibility(G->getVisibility());
   G->replaceAllUsesWith(GA);
   G->eraseFromParent();
+#endif
 }
 
 static bool fold(std::vector<Function *> &FnVec, unsigned i, unsigned j) {