commit 433f6f62ca858c20d5d3f561e63818c2fda06ebe
author Evan Cheng <evan.cheng@apple.com> Thu Mar 06 08:20:51 2008 +0000
committer Evan Cheng <evan.cheng@apple.com> Thu Mar 06 08:20:51 2008 +0000
tree 1b0ac953f5512806efbfc08f3ee5d241f711be50
parent 819a66cf2582f6d9108a7a7f4a75175d7901a8dc

Constant fold SIGN_EXTEND_INREG with ashr not lshr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47992 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/SelectionDAG/SelectionDAG.cpp

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index dd13435..0dba4a4 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2029,7 +2029,7 @@
       APInt Val = N1C->getAPIntValue();
       unsigned FromBits = MVT::getSizeInBits(cast<VTSDNode>(N2)->getVT());
       Val <<= Val.getBitWidth()-FromBits;
-      Val = Val.lshr(Val.getBitWidth()-FromBits);
+      Val = Val.ashr(Val.getBitWidth()-FromBits);
       return getConstant(Val, VT);
     }
     break;