From: Chris Lattner <sabre@nondot.org>
Date: Fri, 3 Feb 2006 23:50:46 +0000 (+0000)
Subject: Handle another case exposed on X86.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=8666249ad6eca27d267f251495545bca132a9a5c;p=oota-llvm.git

Handle another case exposed on X86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25949 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp
index 24640a9fe18..24457b4a63d 100644
--- a/lib/CodeGen/VirtRegMap.cpp
+++ b/lib/CodeGen/VirtRegMap.cpp
@@ -274,6 +274,10 @@ public:
   /// specified physreg.  If CanClobber is true, the physreg can be modified at
   /// any time without changing the semantics of the program.
   void addAvailable(int Slot, unsigned Reg, bool CanClobber = true) {
+    // If this stack slot is thought to be available in some other physreg, 
+    // remove its record.
+    ModifyStackSlot(Slot);
+    
     PhysRegsAvailable.insert(std::make_pair(Reg, Slot));
     SpillSlotsAvailable[Slot] = (Reg << 1) | CanClobber;