From d31df87f41891c9ea459282c666c6e1cab9bd4c7 Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@apple.com>
Date: Wed, 13 Apr 2011 00:20:59 +0000
Subject: Temporarily revert r129408 to see if it brings the bots back.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129417 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/RegAllocFast.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'lib/CodeGen/RegAllocFast.cpp')

diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp
index 30ecea0018..7bb849ef54 100644
--- a/lib/CodeGen/RegAllocFast.cpp
+++ b/lib/CodeGen/RegAllocFast.cpp
@@ -442,6 +442,8 @@ unsigned RAFast::calcSpillCost(unsigned PhysReg) const {
   unsigned Cost = 0;
   for (const unsigned *AS = TRI->getAliasSet(PhysReg);
        unsigned Alias = *AS; ++AS) {
+    if (UsedInInstr.test(Alias))
+      return spillImpossible;
     switch (unsigned VirtReg = PhysRegState[Alias]) {
     case regDisabled:
       break;
-- 
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