From: Chris Lattner <sabre@nondot.org>
Date: Sat, 9 Apr 2005 21:23:24 +0000 (+0000)
Subject: do not set the root to null if an argument is dead
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=91277ea45c7a6f052dd588edee51644f23194619;p=oota-llvm.git

do not set the root to null if an argument is dead


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21188 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/PowerPC/PPCISelPattern.cpp b/lib/Target/PowerPC/PPCISelPattern.cpp
index 566d79bade9..44e041a8ba5 100644
--- a/lib/Target/PowerPC/PPCISelPattern.cpp
+++ b/lib/Target/PowerPC/PPCISelPattern.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);
   }