From 2692d5957482184e767503d9c0ae703163b338e3 Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Sun, 31 Aug 2008 01:13:31 +0000
Subject: [PATCH] Another situation where ROTR is cheaper than ROTL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55577 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 2521609f5b6..e414fdfa7ab 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -2044,10 +2044,10 @@ SDNode *DAGCombiner::MatchRotate(SDValue LHS, SDValue RHS) {
     if (ConstantSDNode *SUBC = 
           dyn_cast<ConstantSDNode>(LHSShiftAmt.getOperand(0))) {
       if (SUBC->getAPIntValue() == OpSizeInBits) {
-        if (HasROTL)
-          return DAG.getNode(ISD::ROTL, VT, LHSShiftArg, LHSShiftAmt).getNode();
-        else
+        if (HasROTR)
           return DAG.getNode(ISD::ROTR, VT, LHSShiftArg, RHSShiftAmt).getNode();
+        else
+          return DAG.getNode(ISD::ROTL, VT, LHSShiftArg, LHSShiftAmt).getNode();
       }
     }
   }