From db789f2d7693fe2437faf1ba4d62741fc710ce08 Mon Sep 17 00:00:00 2001
From: Nadav Rotem <nadav.rotem@intel.com>
Date: Tue, 14 Jun 2011 07:18:26 +0000
Subject: [PATCH] Disable trunc-store simplification on vectors.

llvm-svn: 132984
---
 lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index e843f5fa340..6f940760e03 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -6425,7 +6425,7 @@ SDValue DAGCombiner::visitSTORE(SDNode *N) {
 
   // FIXME: is there such a thing as a truncating indexed store?
   if (ST->isTruncatingStore() && ST->isUnindexed() &&
-      Value.getValueType().isInteger()) {
+      Value.getValueType().isInteger() && !Value.getValueType().isVector()) {
     // See if we can simplify the input to this truncstore with knowledge that
     // only the low bits are being used.  For example:
     // "truncstore (or (shl x, 8), y), i8"  -> "truncstore y, i8"