From: Bob Wilson <bob.wilson@apple.com>
Date: Sun, 23 May 2010 05:42:31 +0000 (+0000)
Subject: VDUP doesn't support vectors with 64-bit elements.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=069e4348685e5e7a472787fc9950a081633bf928;p=oota-llvm.git

VDUP doesn't support vectors with 64-bit elements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104455 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 39e75d32c93..21042da1a9a 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -2876,12 +2876,12 @@ static SDValue LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) {
     return SDValue();
 
   // Use VDUP for non-constant splats.
-  if (usesOnlyOneValue)
+  unsigned EltSize = VT.getVectorElementType().getSizeInBits();
+  if (usesOnlyOneValue && EltSize <= 32)
     return DAG.getNode(ARMISD::VDUP, dl, VT, Value);
 
   // Vectors with 32- or 64-bit elements can be built by directly assigning
   // the subregisters.
-  unsigned EltSize = VT.getVectorElementType().getSizeInBits();
   if (EltSize >= 32) {
     // Do the expansion with floating-point types, since that is what the VFP
     // registers are defined to use, and since i64 is not legal.