From 13fc2f1d270cdedffb72b33621369cee9a2cdaaa Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 27 Mar 2006 20:28:29 +0000
Subject: [PATCH] Fix legalization of intrinsics with chain and result values

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27181 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 81139dcde17..b0a48eef6d7 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -564,8 +564,19 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
         TargetLowering::Custom) {
       Tmp3 = TLI.LowerOperation(Result, DAG);
       if (Tmp3.Val) Result = Tmp3;
-    }      
-    break;
+    }
+
+    if (Result.Val->getNumValues() == 1) break;
+
+    // Must have return value and chain result.
+    assert(Result.Val->getNumValues() == 2 &&
+           "Cannot return more than two values!");
+
+    // Since loads produce two values, make sure to remember that we 
+    // legalized both of them.
+    AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0));
+    AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1));
+    return Result.getValue(Op.ResNo);
   }    
 
   case ISD::LOCATION: