From 904ec3a392f295d0242f27d54ace7a7160743597 Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@apple.com>
Date: Thu, 5 Aug 2010 18:34:30 +0000
Subject: [PATCH] Handle the pseudo in MCInstLower.

llvm-svn: 110359
---
 lib/Target/X86/X86MCInstLower.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/Target/X86/X86MCInstLower.cpp b/lib/Target/X86/X86MCInstLower.cpp
index e55b7265cb9..ae20e689ef8 100644
--- a/lib/Target/X86/X86MCInstLower.cpp
+++ b/lib/Target/X86/X86MCInstLower.cpp
@@ -515,6 +515,12 @@ void X86AsmPrinter::EmitInstruction(const MachineInstr *MI) {
     }
     return;
 
+  // Emit nothing here but a comment if we can.
+  case X86::Int_MemBarrier:
+    if (OutStreamer.hasRawTextSupport())
+      OutStreamer.EmitRawText(StringRef("\t#MEMBARRIER"));
+    return;
+        
   case X86::TAILJMPr:
   case X86::TAILJMPd:
   case X86::TAILJMPd64: