From 34138079138535e706e15e7d4e9b6294fe05a0b1 Mon Sep 17 00:00:00 2001
From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Thu, 9 Dec 2010 21:20:46 +0000
Subject: Remember to filter out reserved rergisters from the allocation order.

llvm-svn: 121411
---
 llvm/lib/CodeGen/RegAllocGreedy.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'llvm/lib/CodeGen/RegAllocGreedy.cpp')

diff --git a/llvm/lib/CodeGen/RegAllocGreedy.cpp b/llvm/lib/CodeGen/RegAllocGreedy.cpp
index eae4cccb549..3c166bac4b4 100644
--- a/llvm/lib/CodeGen/RegAllocGreedy.cpp
+++ b/llvm/lib/CodeGen/RegAllocGreedy.cpp
@@ -165,7 +165,7 @@ bool RAGreedy::reassignVReg(LiveInterval &InterferingVReg,
          E = TRC->allocation_order_end(*MF);
        I != E; ++I) {
     unsigned PhysReg = *I;
-    if (PhysReg == OldPhysReg)
+    if (PhysReg == OldPhysReg || ReservedRegs.test(PhysReg))
       continue;
 
     // Instantiate a "subquery", not to be confused with the Queries array.
-- 
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