From: Nate Begeman <natebegeman@mac.com>
Date: Fri, 14 Oct 2005 01:29:07 +0000 (+0000)
Subject: fold sext_in_reg, sext_in_reg where both have the same VT.  This was
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=216def8ecfb8d2b03520a4fe004d498ad7b8b1c9;p=oota-llvm.git

fold sext_in_reg, sext_in_reg where both have the same VT.  This was
popping up in Fourinarow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23722 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 4997dba4680..879dc5b36f7 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -1330,7 +1330,7 @@ SDOperand DAGCombiner::visitSIGN_EXTEND_INREG(SDNode *N) {
   }
   // fold (sext_in_reg (sext_in_reg x, VT2), VT1) -> (sext_in_reg x, minVT) pt1
   if (N0.getOpcode() == ISD::SIGN_EXTEND_INREG && 
-      cast<VTSDNode>(N0.getOperand(1))->getVT() < EVT) {
+      cast<VTSDNode>(N0.getOperand(1))->getVT() <= EVT) {
     return N0;
   }
   // fold (sext_in_reg (sext_in_reg x, VT2), VT1) -> (sext_in_reg x, minVT) pt2