From: Mon P Wang <wangmp@apple.com>
Date: Fri, 30 Jan 2009 07:07:40 +0000 (+0000)
Subject: When PerformBuildVectorCombine, avoid creating a X86ISD::VZEXT_LOAD of
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7ad9b5127869e0074565ffaec489c9537c6ec467;p=oota-llvm.git

When PerformBuildVectorCombine, avoid creating a X86ISD::VZEXT_LOAD of
an illegal type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63380 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index bf7c704b9ba..e17ae99b5c9 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -7601,7 +7601,11 @@ static SDValue PerformBuildVectorCombine(SDNode *N, SelectionDAG &DAG,
   // Load must not be an extload.
   if (LD->getExtensionType() != ISD::NON_EXTLOAD)
     return SDValue();
-  
+
+  // Load type should legal type so we don't have to legalize it.
+  if (!TLI.isTypeLegal(VT))
+    return SDValue();
+
   SDVTList Tys = DAG.getVTList(VT, MVT::Other);
   SDValue Ops[] = { LD->getChain(), LD->getBasePtr() };
   SDValue ResNode = DAG.getNode(X86ISD::VZEXT_LOAD, Tys, Ops, 2);