From e8e070dbfba00e7875d4bcd2587b0cb7ad26e782 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 9 Apr 2005 21:23:24 +0000
Subject: do not set the root to null if an argument is dead

llvm-svn: 21188
---
 llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp')

diff --git a/llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp b/llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp
index 566d79bade9..44e041a8ba5 100644
--- a/llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp
+++ b/llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp
@@ -203,8 +203,9 @@ PPC32TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
       GPR_idx += delta;
     }
     ArgOffset += ObjSize;
+    if (newroot.Val)
+      DAG.setRoot(newroot.getValue(1));
     
-    DAG.setRoot(newroot.getValue(1));
     ArgValues.push_back(argt);
   }
 
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