Fix sign extend to long. When coming from sbyte, we used to generate:

        movsbl 4(%esp), %eax
        movl %eax, %edx
        sarl $7, %edx

Now we generate:

        movsbl 4(%esp), %eax
        movl %eax, %edx
        sarl $31, %edx

Which is right.

llvm-svn: 19515

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index f3b344bb8c1..64c686efc67 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -805,8 +805,8 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
     
     // The high part is obtained by SRA'ing all but one of the bits of the lo
     // part.
-    unsigned SrcSize = MVT::getSizeInBits(Node->getOperand(0).getValueType());
-    Hi = DAG.getNode(ISD::SRA, NVT, Lo, DAG.getConstant(SrcSize-1, MVT::i8));
+    unsigned LoSize = MVT::getSizeInBits(Lo.getValueType());
+    Hi = DAG.getNode(ISD::SRA, NVT, Lo, DAG.getConstant(LoSize-1, MVT::i8));
     break;
   }
   case ISD::ZERO_EXTEND: