From 96c5ea878c96ce123c2c84bafcfb70032b56c9ab Mon Sep 17 00:00:00 2001
From: Owen Anderson <resistor@mac.com>
Date: Wed, 27 Aug 2008 00:35:37 +0000
Subject: [PATCH] Fix handling of inttoptr and ptrtoint when unhandled operands
 are present.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55400 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/FastISel.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp
index 64843f8b558..a956f0190b4 100644
--- a/lib/CodeGen/SelectionDAG/FastISel.cpp
+++ b/lib/CodeGen/SelectionDAG/FastISel.cpp
@@ -393,8 +393,12 @@ FastISel::SelectInstructions(BasicBlock::iterator Begin,
       MVT SrcVT = TLI.getValueType(I->getOperand(0)->getType());
       MVT DstVT = TLI.getValueType(I->getType());
       if (SrcVT.getSimpleVT() == DstVT.getSimpleVT()) {
-        ValueMap[I] = ValueMap[I->getOperand(0)];
-        break;
+        if (ValueMap[I->getOperand(0)]) {
+          ValueMap[I] = ValueMap[I->getOperand(0)];
+          break;
+        } else
+          // Unhandled operand
+          return I;
       } else if (DstVT.bitsGT(SrcVT)) {
         if (!isa<ConstantInt>(I->getOperand(0))) {
           if (!SelectCast(I, ISD::ZERO_EXTEND, ValueMap)) return I;